diff options
Diffstat (limited to 'context/context-management')
43 files changed, 4188 insertions, 0 deletions
diff --git a/context/context-management/pom.xml b/context/context-management/pom.xml new file mode 100644 index 000000000..b05c76a71 --- /dev/null +++ b/context/context-management/pom.xml @@ -0,0 +1,49 @@ +<!-- + ============LICENSE_START======================================================= + Copyright (C) 2018 Ericsson. All rights reserved. + ================================================================================ + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + + SPDX-License-Identifier: Apache-2.0 + ============LICENSE_END========================================================= +--> +<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" + xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> + <modelVersion>4.0.0</modelVersion> + <parent> + <groupId>org.onap.policy.apex-pdp.context</groupId> + <artifactId>context</artifactId> + <version>2.0.0-SNAPSHOT</version> + </parent> + + <artifactId>context-management</artifactId> + <name>${project.artifactId}</name> + <description>Context management for Apex policy execution</description> + + <dependencies> + <dependency> + <groupId>org.onap.policy.apex-pdp.model</groupId> + <artifactId>context-model</artifactId> + <version>${project.version}</version> + </dependency> + <dependency> + <groupId>org.onap.policy.apex-pdp.model</groupId> + <artifactId>utilities</artifactId> + <version>${project.version}</version> + </dependency> + <dependency> + <groupId>com.google.code.gson</groupId> + <artifactId>gson</artifactId> + </dependency> + </dependencies> +</project>
\ No newline at end of file diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/ContextAlbum.java b/context/context-management/src/main/java/org/onap/policy/apex/context/ContextAlbum.java new file mode 100644 index 000000000..73ef668a0 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/ContextAlbum.java @@ -0,0 +1,127 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context; + +import java.util.Map; + +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; +import org.onap.policy.apex.model.basicmodel.concepts.AxConcept; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextAlbum; + +/** + * The Interface ContextAlbum is implemented by all classes that manage context in Apex. Context albums may store + * context in memory, on disk, in a repository or in a mechanism such as a distributed map. + * <p> + * A context album uses plugins to handle its context schemas, its distribution, its locking, and its persistence. + * <p> + * The schema that defines the items in a context album is interpreted by a plugin that implements the + * {@link SchemaHelper} interface. The schema helper uses the schema definition to provide new instances for a context + * album. By default, context albums use Java schemas. + * <p> + * Context albums may be shared across an arbitrary number of JVMs using a distribution mechanism. Apex context + * distributed context albums using plugins that implement the {@link Distributor} interface. By default, context albums + * use JVM local distribution, that is context albums are only available in a single JVM + * <p> + * Items in a context album may be locked across all distributed instances of an album. Apex locks instances on context + * albums using the distributed locking mechanism in a plugin that implements the {@link LockManager} interface. By + * default, context albums use Java locking local to a single JVM on each context album instance. + * <p> + * Context albums may be persisted to disk, database, or any other repository. Apex persists context albums using the + * persistence mechanism in a plugin that implements the {@link Persistor} interface. By default, context albums use a + * dummy persistor plugin that does not persist context albums. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public interface ContextAlbum extends Map<String, Object> { + /** + * Gets the key of the context album instance. + * + * @return the key + */ + AxArtifactKey getKey(); + + /** + * Gets the name of the context album instance. + * + * @return the name + */ + String getName(); + + /** + * Get the current context album with values. + * + * @return the current context runtime values + */ + AxContextAlbum getAlbumDefinition(); + + /** + * Get the schema helper for the technology that is handling the schema for this album. + * + * @return the schema helper + */ + SchemaHelper getSchemaHelper(); + + /** + * Place a read lock on a key in this album across the entire cluster. + * + * @param key The key to lock + * @throws ContextException on locking errors + */ + void lockForReading(String key) throws ContextException; + + /** + * Place a write lock on a key in this album across the entire cluster. + * + * @param key The key to lock + * @throws ContextException on locking errors + */ + void lockForWriting(String key) throws ContextException; + + /** + * Release the the read lock on a key in this album across the entire cluster. + * + * @param key The key to unlock + * @throws ContextException on locking errors + */ + void unlockForReading(String key) throws ContextException; + + /** + * Release the the write lock on a key in this album across the entire cluster. + * + * @param key The key to unlock + * @throws ContextException on locking errors + */ + void unlockForWriting(String key) throws ContextException; + + /** + * Set the stack of artifact keys currently using this context item. + * + * @param userArtifactStack the keys of the artifacts using the context album at the moment + */ + void setUserArtifactStack(AxConcept[] userArtifactStack); + + /** + * Flush the context album to the distribution and persistence mechanism. + * + * @throws ContextException On context flush errors + */ + void flush() throws ContextException; +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/ContextException.java b/context/context-management/src/main/java/org/onap/policy/apex/context/ContextException.java new file mode 100644 index 000000000..de5cec051 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/ContextException.java @@ -0,0 +1,51 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context; + +import org.onap.policy.apex.model.basicmodel.concepts.ApexException; + +/** + * This exception will be called if an error occurs in an Apex context item. + * + * @author Liam Fallon + */ +public class ContextException extends ApexException { + private static final long serialVersionUID = -8507246953751956974L; + + /** + * Instantiates a new apex context exception with a message. + * + * @param message the message + */ + public ContextException(final String message) { + super(message); + } + + /** + * Instantiates a new apex context exception with a message and a caused by exception. + * + * @param message the message + * @param e the exception that caused this exception to be thrown + */ + public ContextException(final String message, final Exception e) { + super(message, e); + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/ContextRuntimeException.java b/context/context-management/src/main/java/org/onap/policy/apex/context/ContextRuntimeException.java new file mode 100644 index 000000000..b2aa017e5 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/ContextRuntimeException.java @@ -0,0 +1,51 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context; + +import org.onap.policy.apex.model.basicmodel.concepts.ApexRuntimeException; + +/** + * This exception will be called if an error occurs in an Apex context item. + * + * @author Liam Fallon + */ +public class ContextRuntimeException extends ApexRuntimeException { + private static final long serialVersionUID = -8507246953751956974L; + + /** + * Instantiates a new apex context exception with a message. + * + * @param message the message + */ + public ContextRuntimeException(final String message) { + super(message); + } + + /** + * Instantiates a new apex context exception with a message and a caused by exception. + * + * @param message the message + * @param e the exception that caused this exception to be thrown + */ + public ContextRuntimeException(final String message, final Exception e) { + super(message, e); + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/Distributor.java b/context/context-management/src/main/java/org/onap/policy/apex/context/Distributor.java new file mode 100644 index 000000000..a17313882 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/Distributor.java @@ -0,0 +1,140 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context; + +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextAlbum; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextModel; + +/** + * This interface is implemented by plugin classes that distribute context albums in Apex. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public interface Distributor { + + /** + * Initialize the distributor with its properties. + * + * @param key The key that identifies this distributor + * @throws ContextException On errors initializing the distributor + */ + void init(AxArtifactKey key) throws ContextException; + + /** + * Shut down distributor. + * + * @throws ContextException On errors initializing the distributor + */ + void shutdown() throws ContextException; + + /** + * Get the key of the distributor. + * + * @return the contextSetKey + */ + AxArtifactKey getKey(); + + /** + * Register the context model and its sub models with the model service. + * + * @param contextModel the context model to register + * @throws ContextException on model registration errors + */ + void registerModel(AxContextModel contextModel) throws ContextException; + + /** + * Create a context album on a distributor, the distributor looks up the album and initialize it. The + * {@link AxContextAlbum} is used to check that the album in the distributor matches the album definition we expect + * to get. + * + * @param axContextAlbumKey the key of the model context album for this context album + * @return the context album + * @throws ContextException if the album cannot be initialised + */ + ContextAlbum createContextAlbum(AxArtifactKey axContextAlbumKey) throws ContextException; + + /** + * Remove a context album from a distributor. + * + * @param contextAlbum The album to remove + * @throws ContextException if the album cannot be removed + */ + void removeContextAlbum(AxContextAlbum contextAlbum) throws ContextException; + + /** + * Flush all context albums owned by the distributor to the distribution mechanism. + * + * @throws ContextException on context flushing errors + */ + void flush() throws ContextException; + + /** + * Flush a context album owned by the distributor to the distribution mechanism. + * + * @param contextAlbum the context album to flush + * @throws ContextException on errors in flushing the context album + */ + void flushContextAlbum(ContextAlbum contextAlbum) throws ContextException; + + /** + * Place a read lock on an item in an album across the entire cluster. + * + * @param albumKey The key of the album containing the item + * @param keyOnMap The key on the album to lock + * @throws ContextException on locking errors + */ + void lockForReading(AxArtifactKey albumKey, String keyOnMap) throws ContextException; + + /** + * Place a write lock on an album item across the entire cluster. + * + * @param albumKey The key of the album containing the item + * @param key The key on the album to lock + * @throws ContextException on locking errors + */ + void lockForWriting(AxArtifactKey albumKey, String key) throws ContextException; + + /** + * Release the read lock on a key across the entire cluster. + * + * @param albumKey The key of the album containing the item + * @param key The key on the album to unlock + * @throws ContextException on locking errors + */ + void unlockForReading(AxArtifactKey albumKey, String key) throws ContextException; + + /** + * Release the write lock on a key across the entire cluster. + * + * @param albumKey The key of the album containing the item + * @param key The key on the album to unlock + * @throws ContextException on locking errors + */ + void unlockForWriting(AxArtifactKey albumKey, String key) throws ContextException; + + /** + * Clear all the context from the context distributor. + * + * @throws ContextException on context clearing exceptions + */ + void clear() throws ContextException; +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/LockManager.java b/context/context-management/src/main/java/org/onap/policy/apex/context/LockManager.java new file mode 100644 index 000000000..8ccf54424 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/LockManager.java @@ -0,0 +1,88 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context; + +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; + +/** + * This interface provides a facade to hide implementation details of various lock managers that may be used to manage + * locking of context items. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public interface LockManager { + + /** + * Initialize the lock manager with its properties. + * + * @param key The key of this lock manager + * @throws ContextException On errors initializing the persistor + */ + void init(AxArtifactKey key) throws ContextException; + + /** + * Get the key of the lock manager. + * + * @return the managers key + */ + AxArtifactKey getKey(); + + /** + * Place a read lock on a lock type and key across the entire cluster. + * + * @param lockTypeKey The key of the map where the context item to lock is + * @param lockKey The key on the map to lock + * @throws ContextException on locking errors + */ + void lockForReading(String lockTypeKey, String lockKey) throws ContextException; + + /** + * Place a write lock on a lock type and key across the entire cluster. + * + * @param lockTypeKey The key of the map where the context item to lock is + * @param lockKey The key on the map to lock + * @throws ContextException on locking errors + */ + void lockForWriting(String lockTypeKey, String lockKey) throws ContextException; + + /** + * Release a read lock on a lock type and key across the entire cluster. + * + * @param lockTypeKey The key of the map where the context item to lock is + * @param lockKey The key on the map to lock + * @throws ContextException on locking errors + */ + void unlockForReading(String lockTypeKey, String lockKey) throws ContextException; + + /** + * Release a write lock on a lock type and key across the entire cluster. + * + * @param lockTypeKey The key of the map where the context item to lock is + * @param lockKey The key on the map to lock + * @throws ContextException on locking errors + */ + void unlockForWriting(String lockTypeKey, String lockKey) throws ContextException; + + /** + * Shut down the lock manager and clear any connections or data it is using. + */ + void shutdown(); +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/Persistor.java b/context/context-management/src/main/java/org/onap/policy/apex/context/Persistor.java new file mode 100644 index 000000000..d3218a34b --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/Persistor.java @@ -0,0 +1,79 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context; + +import java.util.Set; + +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; +import org.onap.policy.apex.model.basicmodel.concepts.AxReferenceKey; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema; + +/** + * This interface is implemented by plugin classes that persist Context Albums in Apex. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public interface Persistor { + + /** + * Initialize the persistor with its properties. + * + * @param key The key that identifies this persistor + * @throws ContextException On errors initializing the persistor + */ + void init(AxArtifactKey key) throws ContextException; + + /** + * Get the key of the persistor. + * + * @return the contextSetKey + */ + AxArtifactKey getKey(); + + /** + * Read a context item from the persistence mechanism. + * + * @param key the key of the context item + * @param contextItemClassName the name of the context item class, a subclass of {@link AxContextSchema} + * @return the context item that has been read + * @throws ContextException on persistence read errors + */ + AxContextSchema readContextItem(AxReferenceKey key, Class<?> contextItemClassName) throws ContextException; + + /** + * Read all the values of a particular type from persistence. + * + * @param ownerKey the owner key + * @param contextItemClassName The class name of the objects to return + * @return the set of context item values read from persistence or null if none were found + * @throws ContextException On read errors + */ + Set<AxContextSchema> readContextItems(AxArtifactKey ownerKey, Class<?> contextItemClassName) + throws ContextException; + + /** + * Write a context item value to the persistence mechanism. + * + * @param contextItem the context item + * @return the context item that has been written + */ + Object writeContextItem(Object contextItem); +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/SchemaHelper.java b/context/context-management/src/main/java/org/onap/policy/apex/context/SchemaHelper.java new file mode 100644 index 000000000..aa6ea9ffe --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/SchemaHelper.java @@ -0,0 +1,119 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context; + +import com.google.gson.JsonElement; + +import org.onap.policy.apex.model.basicmodel.concepts.AxKey; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema; + +/** + * This interface is implemented by plugin classes that use a particular schema to convert Apex context objects to an + * understandable form. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public interface SchemaHelper { + + /** + * Initialize the schema helper with its properties. + * + * @param userKey The key that identifies the user of the schema helper + * @param schema the schema + * @throws ContextRuntimeException the context runtime exception + */ + void init(AxKey userKey, AxContextSchema schema) throws ContextRuntimeException; + + /** + * Get the user key of the schema helper. + * + * @return the user key + */ + AxKey getUserKey(); + + /** + * Get the schema of the schema helper. + * + * @return the schema + */ + AxContextSchema getSchema(); + + /** + * The Java class that this schema produces on the Java side. + * + * @return the schema class + */ + Class<?> getSchemaClass(); + + /** + * The Java class that handles the schema for the schema technology in use. + * + * @return the schema object + */ + Object getSchemaObject(); + + /** + * Create a new instance of the schema class using whatever schema technology is being used. + * + * @return the new instance + */ + Object createNewInstance(); + + /** + * Create a new instance of the schema class using whatever schema technology is being used. + * + * @param stringValue the string represents the value the new instance should have + * @return the new instance + */ + Object createNewInstance(String stringValue); + + /** + * Create a new instance of the schema class from a GSON JsonElement using whatever schema technology is being used. + * + * @param jsonElement the JSON element that holds the Json representation of the object + * @return the new instance + */ + Object createNewInstance(JsonElement jsonElement); + + /** + * Unmarshal an object in schema format into a Java object. + * + * @param object the object as a Java object + * @return the object in schema format + */ + Object unmarshal(Object object); + + /** + * Marshal a Java object into Json format. + * + * @param schemaObject the object in schema format + * @return the object as a Json string + */ + String marshal2Json(Object schemaObject); + + /** + * Marshal a Java object into a GSON json element. + * + * @param schemaObject the object in schema format + * @return the object as a GSON Json element + */ + JsonElement marshal2JsonElement(Object schemaObject); +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/ContextAlbumImpl.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/ContextAlbumImpl.java new file mode 100644 index 000000000..a68271609 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/ContextAlbumImpl.java @@ -0,0 +1,486 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.impl; + +import java.util.AbstractMap.SimpleEntry; +import java.util.ArrayList; +import java.util.Collection; +import java.util.HashSet; +import java.util.Map; +import java.util.Set; + +import org.onap.policy.apex.context.ContextAlbum; +import org.onap.policy.apex.context.ContextException; +import org.onap.policy.apex.context.ContextRuntimeException; +import org.onap.policy.apex.context.Distributor; +import org.onap.policy.apex.context.SchemaHelper; +import org.onap.policy.apex.context.impl.schema.SchemaHelperFactory; +import org.onap.policy.apex.context.monitoring.ContextMonitor; +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; +import org.onap.policy.apex.model.basicmodel.concepts.AxConcept; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextAlbum; +import org.onap.policy.apex.model.utilities.Assertions; +import org.slf4j.ext.XLogger; +import org.slf4j.ext.XLoggerFactory; + +/** + * The Class ContextAlbumImpl implements the methods on the {@link ContextAlbum} interface. It implements the getters + * and setters on the {@link Map} and uses the {@link Distributor} to handle distribution and locking. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public final class ContextAlbumImpl implements ContextAlbum { + // Logger for this class + private static final XLogger LOGGER = XLoggerFactory.getXLogger(ContextAlbumImpl.class); + + // The definition of this context album + private final AxContextAlbum albumDefinition; + + /// The map holding the items and their values for this context album + private final Map<String, Object> albumMap; + + // The artifact stack of the artifacts currently using the context album + private AxConcept[] userArtifactStack = null; + + // The context distributor we are using + private final Distributor distributor; + + // The schema helper that handles translations of Java objects for this album + private SchemaHelper schemaHelper; + + // The context monitor for this context album + private ContextMonitor monitor = null; + + /** + * Constructor, instantiate the context album. + * + * @param albumDefinition The model definition of this context album + * @param distributor The context distributor passed to us to distribute context across ContextAlbum instances + * @param albumMap the album map + * @throws ContextException on errors creating context albums + */ + public ContextAlbumImpl(final AxContextAlbum albumDefinition, final Distributor distributor, + final Map<String, Object> albumMap) throws ContextException { + this.albumDefinition = albumDefinition; + + // Use the context distributor passed to us + this.distributor = distributor; + + // The map to use to store objects + this.albumMap = albumMap; + + try { + // Get a schema helper to manage the translations between objects on the album map for this album + schemaHelper = new SchemaHelperFactory().createSchemaHelper(albumDefinition.getKey(), + albumDefinition.getItemSchema()); + } catch (final ContextRuntimeException e) { + final String resultString = "could not initiate schema management for context album " + albumDefinition; + LOGGER.warn(resultString, e); + throw new ContextException(resultString, e); + } + + // Create the context monitor + monitor = new ContextMonitor(); + + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.ContextAlbum#getKey() + */ + @Override + public AxArtifactKey getKey() { + return albumDefinition.getKey(); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.ContextAlbum#getName() + */ + @Override + public String getName() { + return albumDefinition.getKey().getName(); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.ContextAlbum#getAxContextAlbum() + */ + @Override + public AxContextAlbum getAlbumDefinition() { + return albumDefinition; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.ContextAlbum#getSchemaHelper() + */ + @Override + public SchemaHelper getSchemaHelper() { + return schemaHelper; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.ContextAlbum#lockForReading(java.lang.String) + */ + @Override + public void lockForReading(final String keyOnAlbum) throws ContextException { + distributor.lockForReading(albumDefinition.getKey(), keyOnAlbum); + monitor.monitorReadLock(albumDefinition.getKey(), albumDefinition.getItemSchema(), keyOnAlbum, + userArtifactStack); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.ContextAlbum#lockForWriting(java.lang.String) + */ + @Override + public void lockForWriting(final String keyOnAlbum) throws ContextException { + distributor.lockForWriting(albumDefinition.getKey(), keyOnAlbum); + monitor.monitorWriteLock(albumDefinition.getKey(), albumDefinition.getItemSchema(), keyOnAlbum, + userArtifactStack); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.ContextAlbum#unlockForReading(java.lang.String) + */ + @Override + public void unlockForReading(final String keyOnAlbum) throws ContextException { + distributor.unlockForReading(albumDefinition.getKey(), keyOnAlbum); + monitor.monitorReadUnlock(albumDefinition.getKey(), albumDefinition.getItemSchema(), keyOnAlbum, + userArtifactStack); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.ContextAlbum#unlockForWriting(java.lang.String) + */ + @Override + public void unlockForWriting(final String keyOnAlbum) throws ContextException { + distributor.unlockForWriting(albumDefinition.getKey(), keyOnAlbum); + monitor.monitorWriteUnlock(albumDefinition.getKey(), albumDefinition.getItemSchema(), keyOnAlbum, + userArtifactStack); + } + + /* + * (non-Javadoc) + * + * @see + * org.onap.policy.apex.context.ContextAlbum#setUserArtifactStack(org.onap.policy.apex.model.basicmodel.concepts. + * AxConcept []) + */ + @Override + public void setUserArtifactStack(final AxConcept[] userArtifactStack) { + this.userArtifactStack = userArtifactStack; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.ContextAlbum#flush() + */ + @Override + public void flush() throws ContextException { + distributor.flushContextAlbum(this); + } + + /* + * The Map interface + */ + + /* + * (non-Javadoc) + * + * @see java.util.Map#size() + */ + @Override + public int size() { + return albumMap.size(); + } + + /* + * (non-Javadoc) + * + * @see java.util.Map#isEmpty() + */ + @Override + public boolean isEmpty() { + return albumMap.isEmpty(); + } + + /* + * (non-Javadoc) + * + * @see java.util.Map#containsKey(java.lang.Object) + */ + @Override + public boolean containsKey(final Object key) { + if (key == null) { + LOGGER.warn("null values are illegal on method parameter \"key\""); + throw new ContextRuntimeException("null values are illegal on method parameter \"key\""); + } + + return albumMap.containsKey(key); + } + + /* + * (non-Javadoc) + * + * @see java.util.Map#containsValue(java.lang.Object) + */ + @Override + public boolean containsValue(final Object value) { + if (value == null) { + LOGGER.warn("null values are illegal on method parameter \"value\""); + throw new ContextRuntimeException("null values are illegal on method parameter \"value\""); + } + + return albumMap.containsValue(value); + } + + /* + * (non-Javadoc) + * + * @see java.util.Map#get(java.lang.Object) + */ + @Override + public Object get(final Object key) { + if (key == null) { + final String returnString = + "album \"" + albumDefinition.getID() + "\" null keys are illegal on keys for get()"; + LOGGER.warn(returnString); + throw new ContextRuntimeException(returnString); + } + + final Object item = albumMap.get(key); + if (item == null) { + return null; + } + + // Get the context value and monitor it + monitor.monitorGet(albumDefinition.getKey(), albumDefinition.getItemSchema(), key.toString(), item, + userArtifactStack); + return item; + } + + /* + * (non-Javadoc) + * + * @see java.util.Map#keySet() + */ + @Override + public Set<String> keySet() { + return albumMap.keySet(); + } + + /* + * (non-Javadoc) + * + * @see java.util.Map#values() + */ + @Override + public Collection<Object> values() { + // Build the key set and return it + final ArrayList<Object> valueList = new ArrayList<>(); + + for (final Entry<String, Object> contextAlbumEntry : albumMap.entrySet()) { + final Object item = contextAlbumEntry.getValue(); + monitor.monitorGet(albumDefinition.getKey(), albumDefinition.getItemSchema(), contextAlbumEntry.getKey(), + item, userArtifactStack); + valueList.add(contextAlbumEntry.getValue()); + } + + return valueList; + } + + /* + * (non-Javadoc) + * + * @see java.util.Map#entrySet() + */ + @Override + public Set<Entry<String, Object>> entrySet() { + // Build the entry set and return it + final Set<Entry<String, Object>> entrySet = new HashSet<>(); + + for (final Entry<String, Object> contextAlbumEntry : albumMap.entrySet()) { + final Object item = contextAlbumEntry.getValue(); + monitor.monitorGet(albumDefinition.getKey(), albumDefinition.getItemSchema(), contextAlbumEntry.getKey(), + item, userArtifactStack); + entrySet.add(new SimpleEntry<>(contextAlbumEntry.getKey(), contextAlbumEntry.getValue())); + } + + return entrySet; + } + + /* + * (non-Javadoc) + * + * @see java.util.Map#put(java.lang.Object, java.lang.Object) + */ + @Override + public Object put(final String key, final Object incomingValue) { + if (key == null) { + final String returnString = + "album \"" + albumDefinition.getID() + "\" null keys are illegal on keys for put()"; + LOGGER.warn(returnString); + throw new ContextRuntimeException(returnString); + } + + if (incomingValue == null) { + final String returnString = "album \"" + albumDefinition.getID() + "\" null values are illegal on key \"" + + key + "\" for put()"; + LOGGER.warn(returnString); + throw new ContextRuntimeException(returnString); + } + + if (!albumDefinition.isWritable()) { + final String returnString = "album \"" + albumDefinition.getID() + + "\" put() not allowed on read only albums for key=\"" + key + "\", value=\"" + incomingValue; + LOGGER.warn(returnString); + throw new ContextRuntimeException(returnString); + } + + try { + // Translate the object to a schema object + final Object valueToPut = schemaHelper.unmarshal(incomingValue); + + // Check if the key is already in the map + if (albumMap.containsKey(key)) { + // Update the value in the context item and in the context value map + monitor.monitorSet(albumDefinition.getKey(), albumDefinition.getItemSchema(), key, incomingValue, + userArtifactStack); + } else { + // Update the value in the context item and in the context value map + monitor.monitorInit(albumDefinition.getKey(), albumDefinition.getItemSchema(), key, incomingValue, + userArtifactStack); + } + + // Put the translated value on the map and return the old map value + return albumMap.put(key, valueToPut); + } catch (final ContextRuntimeException e) { + final String returnString = "Failed to set context value for key \"" + key + "\" in album \"" + + albumDefinition.getID() + "\": " + e.getMessage(); + LOGGER.warn(returnString); + throw new ContextRuntimeException(returnString, e); + } + } + + /* + * (non-Javadoc) + * + * @see java.util.Map#putAll(java.util.Map) + */ + @Override + public void putAll(final Map<? extends String, ? extends Object> incomingContextAlbum) { + if (!albumDefinition.isWritable()) { + final String returnString = + "album \"" + albumDefinition.getID() + "\" putAll() not allowed on read only albums"; + LOGGER.warn(returnString); + throw new ContextRuntimeException(returnString); + } + + // Sanity check on incoming context + Assertions.argumentNotNull(incomingContextAlbum, ContextRuntimeException.class, + "cannot update context, context album is null"); + + // Iterate over the incoming context + for (final Entry<String, Object> entry : albumMap.entrySet()) { + synchronized (albumDefinition) { + // Get the key for the incoming name + final Object incomingDataItem = incomingContextAlbum.get(entry.getKey()); + if (incomingDataItem != null) { + // Update the value the context album + put(entry.getKey(), incomingDataItem); + } + } + } + + // Put all the objects on the context album + for (final Entry<? extends String, ? extends Object> incomingMapEntry : incomingContextAlbum.entrySet()) { + // Put the entry on the map + this.put(incomingMapEntry.getKey(), incomingMapEntry.getValue()); + } + } + + /* + * (non-Javadoc) + * + * @see java.util.Map#remove(java.lang.Object) + */ + @Override + public Object remove(final Object key) { + if (!albumDefinition.isWritable()) { + final String returnString = "album \"" + albumDefinition.getID() + + "\" remove() not allowed on read only albums for key=\"" + key; + LOGGER.warn(returnString); + throw new ContextRuntimeException(returnString); + } + + if (key == null) { + LOGGER.warn("null values are illegal on method parameter \"key\""); + throw new ContextRuntimeException("null values are illegal on method parameter \"keyID\""); + } + + // Delete the item + final Object removedValue = albumMap.remove(key); + monitor.monitorDelete(albumDefinition.getKey(), albumDefinition.getItemSchema(), key.toString(), removedValue, + userArtifactStack); + + // Return the value of the deleted item + return removedValue; + } + + /* + * (non-Javadoc) + * + * @see java.util.Map#clear() + */ + @Override + public void clear() { + if (!albumDefinition.isWritable()) { + final String returnString = + "album \"" + albumDefinition.getID() + "\" clear() not allowed on read only albums"; + LOGGER.warn(returnString); + throw new ContextRuntimeException(returnString); + } + + // Monitor deletion of each item + for (final Entry<String, Object> contextAlbumEntry : albumMap.entrySet()) { + final Object item = contextAlbumEntry.getValue(); + monitor.monitorDelete(albumDefinition.getKey(), albumDefinition.getItemSchema(), contextAlbumEntry.getKey(), + item, userArtifactStack); + } + + // Clear the map + albumMap.clear(); + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/AbstractDistributor.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/AbstractDistributor.java new file mode 100644 index 000000000..e5a45b203 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/AbstractDistributor.java @@ -0,0 +1,326 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.impl.distribution; + +import java.util.Collections; +import java.util.HashMap; +import java.util.Map; +import java.util.Map.Entry; + +import org.onap.policy.apex.context.ContextAlbum; +import org.onap.policy.apex.context.ContextException; +import org.onap.policy.apex.context.Distributor; +import org.onap.policy.apex.context.LockManager; +import org.onap.policy.apex.context.Persistor; +import org.onap.policy.apex.context.impl.ContextAlbumImpl; +import org.onap.policy.apex.context.impl.locking.LockManagerFactory; +import org.onap.policy.apex.context.impl.persistence.PersistorFactory; +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; +import org.onap.policy.apex.model.basicmodel.concepts.AxKeyInformation; +import org.onap.policy.apex.model.basicmodel.concepts.AxValidationResult; +import org.onap.policy.apex.model.basicmodel.service.ModelService; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextAlbum; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextAlbums; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextModel; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchemas; +import org.slf4j.ext.XLogger; +import org.slf4j.ext.XLoggerFactory; + +/** + * This context distributor implements the mechanism-neutral parts of a context distributor. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public abstract class AbstractDistributor implements Distributor { + + // Logger for this class + private static final XLogger LOGGER = XLoggerFactory.getXLogger(AbstractDistributor.class); + + // The key of this distributor + private AxArtifactKey key = null; + + // The context albums for this context set indexed by their keys + private static Map<AxArtifactKey, ContextAlbum> albumMaps = + Collections.synchronizedMap(new HashMap<AxArtifactKey, ContextAlbum>()); + + // Lock manager for this distributor + private static LockManager lockManager = null; + + // Hold a persistor for this distributor + private Persistor persistor = null; + + // Hold a flush timer for this context distributor + private static DistributorFlushTimerTask flushTimer = null; + + /** + * Create an instance of an abstract Context Distributor. + */ + public AbstractDistributor() { + LOGGER.entry("AbstractContextDistributor()"); + LOGGER.exit("AbstractContextDistributor()"); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.ContextDistributor#init(org.onap.policy.apex.model.basicmodel.concepts. + * AxArtifactKey) + */ + @Override + public void init(final AxArtifactKey distributorKey) throws ContextException { + LOGGER.entry("init(" + distributorKey + ")"); + + // Record parameters and key + this.key = distributorKey; + + // Create the lock manager if it doesn't already exist + if (lockManager == null) { + lockManager = new LockManagerFactory().createLockManager(key); + } + + // Set up flushing on the context distributor if its not set up already + if (flushTimer == null) { + flushTimer = new DistributorFlushTimerTask(this); + } + + // Create a new persistor for this key + persistor = new PersistorFactory().createPersistor(key); + LOGGER.exit("init(" + key + ")"); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.ContextDistributor#shutdown() + */ + @Override + public abstract void shutdown(); + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.ContextDistributor#getKey() + */ + @Override + public AxArtifactKey getKey() { + return key; + } + + /** + * Create a context album using whatever underlying mechanism we are using for albums. + * + * @param contextAlbumKey The key of the album + * @return The album as a string-object map + */ + public abstract Map<String, Object> getContextAlbumMap(AxArtifactKey contextAlbumKey); + + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.Distributor#registerModel(org.onap.policy.apex.model.contextmodel.concepts. + * AxContextModel) + */ + @Override + public void registerModel(final AxContextModel contextModel) throws ContextException { + ModelService.registerModel(AxKeyInformation.class, contextModel.getKeyInformation()); + ModelService.registerModel(AxContextSchemas.class, contextModel.getSchemas()); + ModelService.registerModel(AxContextAlbums.class, contextModel.getAlbums()); + } + + /* + * (non-Javadoc) + * + * @see + * org.onap.policy.apex.core.context.ContextDistributor#createContextAlbum(org.onap.policy.apex.core.basicmodel. + * concepts. AxArtifactKey) + */ + @Override + public synchronized ContextAlbum createContextAlbum(final AxArtifactKey axContextAlbumKey) throws ContextException { + // Get the context album definition + final AxContextAlbum album = ModelService.getModel(AxContextAlbums.class).get(axContextAlbumKey); + if (album == null) { + final String resultString = "context album " + axContextAlbumKey.getID() + " does not exist"; + LOGGER.warn(resultString); + throw new ContextException(resultString); + } + + // Check if the context album is valid + final AxValidationResult result = album.validate(new AxValidationResult()); + if (!result.isValid()) { + final String resultString = + "context album definition for " + album.getKey().getID() + " is invalid" + result; + LOGGER.warn(resultString); + throw new ContextException(resultString); + } + + // Get the schema of the context album + final AxContextSchema schema = ModelService.getModel(AxContextSchemas.class).get(album.getItemSchema()); + if (schema == null) { + final String resultString = "schema \"" + album.getItemSchema().getID() + "\" for context album " + + album.getKey().getID() + " does not exist"; + LOGGER.warn(resultString); + throw new ContextException(resultString); + } + + // Check if the map has already been instantiated + if (!albumMaps.containsKey(album.getKey())) { + // Instantiate the album map for this context album that we'll distribute using the distribution mechanism + final Map<String, Object> newContextAlbumMap = getContextAlbumMap(album.getKey()); + + // The distributed context album will have content from another process instance if the album exists in + // another process, + // if not, we have to try to read the content from persistence + if (newContextAlbumMap.isEmpty()) { + // Read entries from persistence + // TODO: READ ITEMS FROM PRESISTENCE!!!! + } + + // Create the context album and put the context album object onto the distributor + albumMaps.put(album.getKey(), new ContextAlbumImpl(album, this, newContextAlbumMap)); + } + + return albumMaps.get(album.getKey()); + } + + /* + * (non-Javadoc) + * + * @see + * org.onap.policy.apex.core.context.ContextDistributor#removeContextAlbum(org.onap.policy.apex.core.basicmodel. + * concepts. AxArtifactKey) + */ + @Override + public void removeContextAlbum(final AxContextAlbum contextAlbum) throws ContextException { + // Check if the map already exists, if not return + if (!albumMaps.containsKey(contextAlbum.getKey())) { + LOGGER.warn("map remove failed, supplied map is null"); + throw new ContextException("map update failed, supplied map is null"); + } + + // Remove the map from the distributor + albumMaps.remove(contextAlbum.getKey()); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.context.ContextDistributor#flush() + */ + @Override + public void flush() throws ContextException { + // Flush all the maps + for (final Entry<AxArtifactKey, ContextAlbum> distributorMapEntry : albumMaps.entrySet()) { + // Let the persistor write each of the entries + for (final Object contextItem : distributorMapEntry.getValue().values()) { + LOGGER.debug(contextItem.toString()); + // persistor.writeContextItem((AxContextSchema) contextItem); + } + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.context.ContextDistributor#flushContextAlbum(org.onap.policy.apex.core.context. + * ContextAlbum) + */ + @Override + public void flushContextAlbum(final ContextAlbum contextAlbum) throws ContextException { + // Check if the map already exists, if not return + if (!albumMaps.containsKey(contextAlbum.getKey())) { + LOGGER.warn("map flush failed, supplied map is null"); + throw new ContextException("map flush failed, supplied map is null"); + } + + // Let the persistor flush the items on the map + for (final Object contextItem : albumMaps.get(contextAlbum.getKey()).values()) { + persistor.writeContextItem(contextItem); + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.context.ContextDistributor#lockForReading(java.lang.String) + */ + @Override + public synchronized void lockForReading(final AxArtifactKey mapKey, final String itemKey) throws ContextException { + // Lock using the lock manager + lockManager.lockForReading(mapKey.getID(), itemKey); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.context.ContextDistributor#lockForWriting(java.lang.String) + */ + @Override + public synchronized void lockForWriting(final AxArtifactKey mapKey, final String itemKey) throws ContextException { + // Lock using the lock manager + lockManager.lockForWriting(mapKey.getID(), itemKey); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.context.ContextDistributor#unlockForReading(java.lang.String) + */ + @Override + public void unlockForReading(final AxArtifactKey mapKey, final String itemKey) throws ContextException { + // Unlock using the lock manager + lockManager.unlockForReading(mapKey.getID(), itemKey); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.context.ContextDistributor#unlockForWriting(java.lang.String) + */ + @Override + public void unlockForWriting(final AxArtifactKey mapKey, final String itemKey) throws ContextException { + // Unlock using the lock manager + lockManager.unlockForWriting(mapKey.getID(), itemKey); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.context.ContextDistributor#clear() + */ + @Override + public void clear() { + // Shut down the lock manager + if (lockManager != null) { + lockManager.shutdown(); + lockManager = null; + } + + albumMaps.clear(); + + // Turn off the flush timer + flushTimer.cancel(); + + // Shut down the specialization of the context distributor + shutdown(); + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/DistributorFactory.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/DistributorFactory.java new file mode 100644 index 000000000..1af13cbea --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/DistributorFactory.java @@ -0,0 +1,86 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.impl.distribution; + +import org.onap.policy.apex.context.ContextException; +import org.onap.policy.apex.context.Distributor; +import org.onap.policy.apex.context.parameters.DistributorParameters; +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; +import org.onap.policy.apex.model.basicmodel.service.ParameterService; +import org.onap.policy.apex.model.utilities.Assertions; +import org.slf4j.ext.XLogger; +import org.slf4j.ext.XLoggerFactory; + +/** + * This class returns a context distributor for the particular type of distribution mechanism configured for use. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class DistributorFactory { + // Get a reference to the logger + private static final XLogger LOGGER = XLoggerFactory.getXLogger(DistributorFactory.class); + + /** + * Get a context distributor for a given context set key. + * + * @param key The key for the distributor + * @return a context distributor + * @throws ContextException on context distributor creation errors + */ + public Distributor getDistributor(final AxArtifactKey key) throws ContextException { + LOGGER.entry("Distributor factory, key=" + key); + + Assertions.argumentNotNull(key, ContextException.class, "Parameter \"key\" may not be null"); + + // Get the class for the distributor using reflection + final DistributorParameters distributorParameters = ParameterService.getParameters(DistributorParameters.class); + final String pluginClass = distributorParameters.getPluginClass(); + Object contextDistributorObject = null; + try { + contextDistributorObject = Class.forName(pluginClass).newInstance(); + } catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) { + LOGGER.error( + "Apex context distributor class not found for context distributor plugin \"" + pluginClass + "\"", + e); + throw new ContextException( + "Apex context distributor class not found for context distributor plugin \"" + pluginClass + "\"", + e); + } + + // Check the class is a distributor + if (!(contextDistributorObject instanceof Distributor)) { + final String returnString = "Specified Apex context distributor plugin class \"" + pluginClass + + "\" does not implement the ContextDistributor interface"; + LOGGER.error(returnString); + throw new ContextException(returnString); + } + + // The context Distributor to return + final Distributor contextDistributor = (Distributor) contextDistributorObject; + + // Lock and load the context distributor + contextDistributor.init(key); + + LOGGER.exit( + "Distributor factory, key=" + key + ", selected distributor of class " + contextDistributor.getClass()); + return contextDistributor; + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/DistributorFlushTimerTask.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/DistributorFlushTimerTask.java new file mode 100644 index 000000000..467d43f9d --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/DistributorFlushTimerTask.java @@ -0,0 +1,116 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.impl.distribution; + +import java.util.Timer; +import java.util.TimerTask; + +import org.onap.policy.apex.context.ContextException; +import org.onap.policy.apex.context.Distributor; +import org.onap.policy.apex.context.parameters.PersistorParameters; +import org.onap.policy.apex.model.basicmodel.service.ParameterService; +import org.slf4j.ext.XLogger; +import org.slf4j.ext.XLoggerFactory; + +/** + * This class is used to periodically flush a context distributor. + * + * @author eeilfn + */ +public class DistributorFlushTimerTask extends TimerTask { + private static final XLogger LOGGER = XLoggerFactory.getXLogger(DistributorFlushTimerTask.class); + + // The timer for flushing + private Timer timer = null; + + // The context distributor to flush + private final Distributor contextDistributor; + + // Timing information + private long period = 0; + private long flushCount = 0; + + /** + * Constructor, save a reference to the event stream handler. + * + * @param contextDistributor the distributor that this timer task is flushing + * @throws ContextException On flush setup errors + */ + public DistributorFlushTimerTask(final Distributor contextDistributor) throws ContextException { + // Save the context distributor and period + this.contextDistributor = contextDistributor; + + // Set the period for persistence flushing + final PersistorParameters persistorParameters = ParameterService.getParameters(PersistorParameters.class); + period = persistorParameters.getFlushPeriod(); + + // Set up the timer + timer = new Timer(DistributorFlushTimerTask.class.getSimpleName(), true); + timer.schedule(this, period, period); + + LOGGER.debug("context distributor " + contextDistributor.getKey().getID() + " flushing set up with interval: " + + period + "ms"); + } + + /** + * Flush the context distributor. + */ + @Override + public void run() { + // Increment the flush counter + flushCount++; + + LOGGER.debug("context distributor " + contextDistributor.getKey().getID() + " flushing: period=" + period + + ": count=" + flushCount); + try { + contextDistributor.flush(); + LOGGER.debug("context distributor " + contextDistributor.getKey().getID() + " flushed: period=" + period + + ": count=" + flushCount); + } catch (final ContextException e) { + LOGGER.error("flush error on context distributor " + contextDistributor.getKey().getID() + ": period=" + + period + ": count=" + flushCount, e); + } + } + + /** + * Cancel the timer. + * + * @return true, if cancel + */ + @Override + public boolean cancel() { + // Cancel the timer + if (timer != null) { + timer.cancel(); + } + return true; + } + + /* + * (non-Javadoc) + * + * @see java.lang.Object#toString() + */ + @Override + public String toString() { + return "ContextDistributorFlushTimerTask [period=" + period + ", flushCount=" + flushCount + "]"; + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/jvmlocal/JVMLocalDistributor.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/jvmlocal/JVMLocalDistributor.java new file mode 100644 index 000000000..dc6637227 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/jvmlocal/JVMLocalDistributor.java @@ -0,0 +1,70 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.impl.distribution.jvmlocal; + +import java.util.Collections; +import java.util.HashMap; +import java.util.Map; + +import org.onap.policy.apex.context.impl.distribution.AbstractDistributor; +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; +import org.slf4j.ext.XLogger; +import org.slf4j.ext.XLoggerFactory; + +/** + * This context distributor distributes context across threads in a single JVM. It holds context in memory in a map. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class JVMLocalDistributor extends AbstractDistributor { + // Logger for this class + private static final XLogger LOGGER = XLoggerFactory.getXLogger(JVMLocalDistributor.class); + + /** + * Create an instance of a JVM Local Context Distributor. + */ + public JVMLocalDistributor() { + super(); + } + + /* + * (non-Javadoc) + * + * @see + * org.onap.policy.apex.context.impl.distribution.AbstractDistributor#getContextAlbumMap(org.onap.policy.apex.model. + * basicmodel.concepts.AxArtifactKey) + */ + @Override + public Map<String, Object> getContextAlbumMap(final AxArtifactKey contextMapKey) { + LOGGER.debug("create map: " + contextMapKey.getID()); + return Collections.synchronizedMap(new HashMap<String, Object>()); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.impl.distribution.AbstractDistributor#shutdown() + */ + @Override + public void shutdown() { + // No specific shutdown for the JVMLocalContextDistributor + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/jvmlocal/package-info.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/jvmlocal/package-info.java new file mode 100644 index 000000000..d96420034 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/jvmlocal/package-info.java @@ -0,0 +1,27 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +/** + * Provides the JVM local default context distribution mechanism for APEX. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ + +package org.onap.policy.apex.context.impl.distribution.jvmlocal; diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/package-info.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/package-info.java new file mode 100644 index 000000000..9b21eed51 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/distribution/package-info.java @@ -0,0 +1,28 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +/** + * Provides an implementation of context album distribution that uses a distribution plugin to distribute items in APEX + * context albums. It also provides a default JVM local distribution plugin. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ + +package org.onap.policy.apex.context.impl.distribution; diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/AbstractLockManager.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/AbstractLockManager.java new file mode 100644 index 000000000..4f197e2d3 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/AbstractLockManager.java @@ -0,0 +1,225 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.impl.locking; + +import java.util.Collections; +import java.util.HashMap; +import java.util.Map; +import java.util.concurrent.locks.ReadWriteLock; + +import org.onap.policy.apex.context.ContextException; +import org.onap.policy.apex.context.LockManager; +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; +import org.slf4j.ext.XLogger; +import org.slf4j.ext.XLoggerFactory; + +/** + * This class implements the {@link LockManager} functionality that is common across all implementations. Lock managers + * for specific lock mechanisms specialize this class. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public abstract class AbstractLockManager implements LockManager { + // Logger for this class + private static final XLogger LOGGER = XLoggerFactory.getXLogger(AbstractLockManager.class); + + // The key of this lock manager + private AxArtifactKey key = null; + + // Map of locks in use on this distributor for each context map + private final Map<String, Map<String, ReadWriteLock>> lockMaps = + Collections.synchronizedMap(new HashMap<String, Map<String, ReadWriteLock>>()); + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.LockManager#init(org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey) + */ + @Override + public void init(final AxArtifactKey lockManagerKey) throws ContextException { + this.key = lockManagerKey; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.LockManager#getKey() + */ + @Override + public AxArtifactKey getKey() { + return key; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.context.LockManager#lockForReading(org.onap.policy.apex.core.model.concepts. + * AxArtifactKey, java.lang.String) + */ + @Override + public synchronized void lockForReading(final String lockTypeKey, final String lockKey) throws ContextException { + LOGGER.entry("lockForReading(" + lockTypeKey + "_" + lockKey + ")"); + + // Find the lock or create a new one + final ReadWriteLock lock = getLock(lockTypeKey, lockKey, true); + + try { + lock.readLock().lock(); + LOGGER.exit("lockForReading(" + lockTypeKey + "_" + lockKey + ")"); + } catch (final Exception e) { + LOGGER.warn("error acquiring read lock on context map " + lockTypeKey + " context item " + lockKey, e); + throw new ContextException( + "error acquiring read lock on context map " + lockTypeKey + " context item " + lockKey, e); + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.context.LockManager#lockForWriting(java.lang.String, java.lang.String) + */ + @Override + public synchronized void lockForWriting(final String lockTypeKey, final String lockKey) throws ContextException { + LOGGER.entry("lockForWriting(" + lockTypeKey + "_" + lockKey + ")"); + + // Find the lock or create a new one + final ReadWriteLock lock = getLock(lockTypeKey, lockKey, true); + + try { + lock.writeLock().lock(); + LOGGER.exit("lockForWriting(" + lockTypeKey + "_" + lockKey + ")"); + } catch (final Exception e) { + LOGGER.warn("error acquiring write lock on context map " + lockTypeKey + " context item " + lockKey, e); + throw new ContextException( + "error acquiring write lock on context map " + lockTypeKey + " context item " + lockKey, e); + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.context.LockManager#unlockForReading(java.lang.String, java.lang.String) + */ + @Override + public void unlockForReading(final String lockTypeKey, final String lockKey) throws ContextException { + LOGGER.entry("unlockForReading(" + lockTypeKey + "_" + lockKey + ")"); + + // Find the lock + final ReadWriteLock lock = getLock(lockTypeKey, lockKey, false); + + try { + lock.readLock().unlock(); + LOGGER.exit("unlockForReading(" + lockTypeKey + "_" + lockKey + ")"); + } catch (final Exception e) { + LOGGER.warn("error releasing read lock on context map " + lockTypeKey + " context item " + lockKey, e); + throw new ContextException( + "error releasing read lock on context map " + lockTypeKey + " context item " + lockKey, e); + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.context.LockManager#unlockForWriting(java.lang.String, java.lang.String) + */ + @Override + public void unlockForWriting(final String lockTypeKey, final String lockKey) throws ContextException { + LOGGER.entry("unlockForWriting(" + lockTypeKey + "_" + lockKey + ")"); + + // Find the lock + final ReadWriteLock lock = getLock(lockTypeKey, lockKey, false); + + try { + lock.writeLock().unlock(); + LOGGER.exit("unlockForWriting(" + lockTypeKey + "_" + lockKey + ")"); + } catch (final Exception e) { + LOGGER.warn("error releasing write lock on context map " + lockTypeKey + " context item " + lockKey, e); + throw new ContextException( + "error releasing write lock on context map " + lockTypeKey + " context item " + lockKey, e); + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.context.LockManager#shutdown() + */ + @Override + public abstract void shutdown(); + + /** + * Get a reentrant read write lock from whatever locking mechanism is in use. + * + * @param lockId The unique ID of the lock. + * @return The lock + * @throws ContextException On errors getting a lock + */ + protected abstract ReadWriteLock getReentrantReadWriteLock(String lockId) throws ContextException; + + /** + * Get a lock for a context item in a context map. + * + * @param lockTypeKey The key of the map where the context item to lock is + * @param lockKey The key on the map to lock + * @param createMode if true, create a lock if it does not exist + * @return The lock + * @throws ContextException On errors getting the lock + */ + private ReadWriteLock getLock(final String lockTypeKey, final String lockKey, final boolean createMode) + throws ContextException { + // Check if we have a lock type map for this lock type yet + if (!lockMaps.containsKey(lockTypeKey)) { + // Create a lock type map for the lock type + lockMaps.put(lockTypeKey, Collections.synchronizedMap(new HashMap<String, ReadWriteLock>())); + } + + // Find or create a lock in the lock map + ReadWriteLock lock = lockMaps.get(lockTypeKey).get(lockKey); + if (lock != null) { + return lock; + } + + // Should we create a lock? + if (!createMode) { + LOGGER.warn("error getting lock on context map " + lockTypeKey + " context item " + lockKey + + ", lock does not exist"); + throw new ContextException("error getting lock on context map " + lockTypeKey + " context item " + lockKey + + ", lock does not exist"); + } + + try { + // Create the lock using the specialization of this abstract class + lock = getReentrantReadWriteLock(lockTypeKey + "_" + lockKey); + + // Add the lock to the lock map + lockMaps.get(lockTypeKey).put(lockKey, lock); + + if (LOGGER.isTraceEnabled()) { + LOGGER.trace("created lock " + lockTypeKey + "_" + lockKey); + } + return lock; + } catch (final Exception e) { + LOGGER.warn("error getting lock on context map " + lockTypeKey + " context item " + lockKey, e); + throw new ContextException("error getting lock on context map " + lockTypeKey + " context item " + lockKey, + e); + } + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/LockManagerFactory.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/LockManagerFactory.java new file mode 100644 index 000000000..f3f4a6240 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/LockManagerFactory.java @@ -0,0 +1,84 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.impl.locking; + +import org.onap.policy.apex.context.ContextException; +import org.onap.policy.apex.context.LockManager; +import org.onap.policy.apex.context.parameters.LockManagerParameters; +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; +import org.onap.policy.apex.model.basicmodel.service.ParameterService; +import org.slf4j.ext.XLogger; +import org.slf4j.ext.XLoggerFactory; + +/** + * This class returns a {@link LockManager} for the particular type of locking mechanism that has been configured for + * use. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class LockManagerFactory { + // Get a reference to the logger + private static final XLogger LOGGER = XLoggerFactory.getXLogger(LockManagerFactory.class); + + /** + * Return a {@link LockManager} for the particular type of locking mechanism configured for use. + * + * @param key The key for the lock manager + * @return a lock manager that can generate locks using some underlying mechanism + * @throws ContextException on errors in getting a lock manager + */ + public LockManager createLockManager(final AxArtifactKey key) throws ContextException { + LOGGER.entry("Lock Manager factory, key=" + key); + + final LockManagerParameters lockManagerParameters = ParameterService.getParameters(LockManagerParameters.class); + + // Get the class for the lock manager using reflection + Object lockManagerObject = null; + final String pluginClass = lockManagerParameters.getPluginClass(); + try { + lockManagerObject = Class.forName(pluginClass).newInstance(); + } catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) { + LOGGER.error( + "Apex context lock manager class not found for context lock manager plugin \"" + pluginClass + "\"", + e); + throw new ContextException( + "Apex context lock manager class not found for context lock manager plugin \"" + pluginClass + "\"", + e); + } + + // Check the class is a lock manager + if (!(lockManagerObject instanceof LockManager)) { + LOGGER.error("Specified Apex context lock manager plugin class \"" + pluginClass + + "\" does not implement the LockManager interface"); + throw new ContextException("Specified Apex context lock manager plugin class \"" + pluginClass + + "\" does not implement the LockManager interface"); + } + + // The context lock manager to return + final LockManager lockManager = (LockManager) lockManagerObject; + + // Lock and load (OK sorry!!!) the lock manager + lockManager.init(key); + + LOGGER.exit("Lock manager factory, key=" + key + ", selected lock manager of class " + lockManager.getClass()); + return lockManager; + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/jvmlocal/JVMLocalLockManager.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/jvmlocal/JVMLocalLockManager.java new file mode 100644 index 000000000..5e71557b8 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/jvmlocal/JVMLocalLockManager.java @@ -0,0 +1,56 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.impl.locking.jvmlocal; + +import java.util.concurrent.locks.ReadWriteLock; +import java.util.concurrent.locks.ReentrantReadWriteLock; + +import org.onap.policy.apex.context.ContextException; +import org.onap.policy.apex.context.impl.locking.AbstractLockManager; + +/** + * A lock manager that returns locks that have a range of just the local JVM. The implementation uses a Jav + * {@link ReentrantReadWriteLock} as the lock for context album items. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class JVMLocalLockManager extends AbstractLockManager { + /* + * (non-Javadoc) + * + * @see + * org.onap.policy.apex.core.context.impl.locking.AbstractLockManager#getReentrantReadWriteLock(java.lang.String) + */ + @Override + public ReadWriteLock getReentrantReadWriteLock(final String lockId) throws ContextException { + return new ReentrantReadWriteLock(); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.context.LockManager#shutdown() + */ + @Override + public void shutdown() { + // Nothing to do for this lock manager + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/jvmlocal/package-info.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/jvmlocal/package-info.java new file mode 100644 index 000000000..f1ac5cf19 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/jvmlocal/package-info.java @@ -0,0 +1,27 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +/** + * Provides the JVM local default context lock management mechanism for apex. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ + +package org.onap.policy.apex.context.impl.locking.jvmlocal; diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/package-info.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/package-info.java new file mode 100644 index 000000000..1a467275d --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/locking/package-info.java @@ -0,0 +1,26 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +/** + * Provides an implementation of context album lock management that uses a lock management plugin to lock items items in + * Apex context albums. It also provides a default JVM local lock management plugin. + */ + +package org.onap.policy.apex.context.impl.locking; diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/package-info.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/package-info.java new file mode 100644 index 000000000..989827bd3 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/package-info.java @@ -0,0 +1,28 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +/** + * Provides an implementation of APEX context schemas and APEX context albums. It provides default implementations of + * context schema handling and context album distribution, locking, and persistence. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ + +package org.onap.policy.apex.context.impl; diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/PersistorFactory.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/PersistorFactory.java new file mode 100644 index 000000000..af6f922d3 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/PersistorFactory.java @@ -0,0 +1,83 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.impl.persistence; + +import org.onap.policy.apex.context.ContextException; +import org.onap.policy.apex.context.Persistor; +import org.onap.policy.apex.context.parameters.PersistorParameters; +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; +import org.onap.policy.apex.model.basicmodel.service.ParameterService; +import org.onap.policy.apex.model.utilities.Assertions; +import org.slf4j.ext.XLogger; +import org.slf4j.ext.XLoggerFactory; + +/** + * This class returns a persistor for the particular type of persistor mechanism that has been configured for use. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class PersistorFactory { + // Get a reference to the logger + private static final XLogger LOGGER = XLoggerFactory.getXLogger(PersistorFactory.class); + + /** + * Return a persistor for the persistence mechanism configured for use. + * + * @param key The key for the persistor + * @return a persistor + * @throws ContextException on invalid persistor types + */ + public Persistor createPersistor(final AxArtifactKey key) throws ContextException { + LOGGER.entry("persistor factory, key=" + key); + Assertions.argumentNotNull(key, ContextException.class, "Parameter \"key\" may not be null"); + + final PersistorParameters persistorParameters = ParameterService.getParameters(PersistorParameters.class); + + // Get the class for the persistor using reflection + Object persistorObject = null; + final String pluginClass = persistorParameters.getPluginClass(); + try { + persistorObject = Class.forName(pluginClass).newInstance(); + } catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) { + LOGGER.error("Apex context persistor class not found for context persistor plugin \"" + pluginClass + "\"", + e); + throw new ContextException( + "Apex context persistor class not found for context persistor plugin \"" + pluginClass + "\"", e); + } + + // Check the class is a persistor + if (!(persistorObject instanceof Persistor)) { + LOGGER.error("Specified Apex context persistor plugin class \"" + pluginClass + + "\" does not implement the ContextDistributor interface"); + throw new ContextException("Specified Apex context persistor plugin class \"" + pluginClass + + "\" does not implement the ContextDistributor interface"); + } + + // The persistor to return + final Persistor persistor = (Persistor) persistorObject; + + // Lock and load the persistor + persistor.init(key); + + LOGGER.exit("Persistor factory, key=" + key + ", selected persistor of class " + persistor.getClass()); + return persistor; + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/ephemeral/EphemeralPersistor.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/ephemeral/EphemeralPersistor.java new file mode 100644 index 000000000..b875978be --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/ephemeral/EphemeralPersistor.java @@ -0,0 +1,100 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.impl.persistence.ephemeral; + +import java.util.Set; +import java.util.TreeSet; + +import org.onap.policy.apex.context.ContextException; +import org.onap.policy.apex.context.Persistor; +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; +import org.onap.policy.apex.model.basicmodel.concepts.AxReferenceKey; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema; + +/** + * This class acts as an "in memory" persistor for a single JVM. It just initiates stubs the Persistor interface and + * does not persist anything. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class EphemeralPersistor implements Persistor { + + // The key of this persistor + private AxArtifactKey key; + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.Persistor#init(org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey) + */ + @Override + public void init(final AxArtifactKey persistorKey) throws ContextException { + this.key = persistorKey; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.Persistor#getKey() + */ + @Override + public AxArtifactKey getKey() { + return key; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.context.Persistor#readContextItem(org.onap.policy.apex.core.basicmodel.concepts. + * AxReferenceKey, java.lang.Class) + */ + @Override + public AxContextSchema readContextItem(final AxReferenceKey itemKey, final Class<?> contextItemClass) { + // Can't read from this persistor as nothing is persisted + return null; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.context.Persistor#readContextItems(org.onap.policy.apex.core.basicmodel.concepts. + * AxArtifactKey, java.lang.Class) + */ + @Override + public Set<AxContextSchema> readContextItems(final AxArtifactKey ownerKey, final Class<?> contextItemClass) + throws ContextException { + // No reading from persistence on the Ephemeral persistor, return an empty set + return new TreeSet<>(); + } + + /* + * (non-Javadoc) + * + * @see + * org.onap.policy.apex.core.context.Persistor#writeContextItem(org.onap.policy.apex.core.contextmodel.concepts. + * AxContextItem) + */ + @Override + public Object writeContextItem(final Object contextItem) { + // No writing to persistence on the Ephemeral persistor + return contextItem; + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/ephemeral/package-info.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/ephemeral/package-info.java new file mode 100644 index 000000000..2d31d21bd --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/ephemeral/package-info.java @@ -0,0 +1,28 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +/** + * Provides the JVM local default context persistence mechanism for APEX, which is in fact a dummy persistor that just + * stubs the Persistor interface and does not persist anything. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ + +package org.onap.policy.apex.context.impl.persistence.ephemeral; diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/package-info.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/package-info.java new file mode 100644 index 000000000..d450dd80c --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/persistence/package-info.java @@ -0,0 +1,28 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +/** + * Provides an implementation of context album persistence that uses a persistence plugin to lock items items in APEX + * context albums. It also provides a default JVM local persistence plugin. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ + +package org.onap.policy.apex.context.impl.persistence; diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/AbstractSchemaHelper.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/AbstractSchemaHelper.java new file mode 100644 index 000000000..83d1b6ba5 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/AbstractSchemaHelper.java @@ -0,0 +1,169 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.impl.schema; + +import java.lang.reflect.Constructor; + +import org.onap.policy.apex.context.ContextRuntimeException; +import org.onap.policy.apex.context.SchemaHelper; +import org.onap.policy.apex.model.basicmodel.concepts.AxKey; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema; +import org.onap.policy.apex.model.utilities.Assertions; +import org.slf4j.ext.XLogger; +import org.slf4j.ext.XLoggerFactory; + +/** + * This class implements the {@link SchemaHelper} functionality that is common across all implementations. Schema + * helpers for specific schema mechanisms specialize this class. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public abstract class AbstractSchemaHelper implements SchemaHelper { + // Get a reference to the logger + private static final XLogger LOGGER = XLoggerFactory.getXLogger(AbstractSchemaHelper.class); + + // The key of the user of this schema helper + private AxKey userKey = null; + + // The schema of this schema helper + private AxContextSchema schema = null; + + // The class of objects for this schema + private Class<?> schemaClass; + + /** + * Sets the schema class for the schema, designed jots to be called by sub classes. + * + * @param schemaClass the Java class that is used to hold items of this schema + */ + protected void setSchemaClass(final Class<?> schemaClass) { + this.schemaClass = schemaClass; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.SchemaHelper#init(org.onap.policy.apex.model.basicmodel.concepts.AxKey, + * org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema) + */ + @Override + public void init(final AxKey incomingUserKey, final AxContextSchema incomingSchema) throws ContextRuntimeException { + Assertions.argumentNotNull(incomingUserKey, ContextRuntimeException.class, "incomingUserKey may not be null"); + Assertions.argumentNotNull(incomingSchema, ContextRuntimeException.class, "incomingSchema may not be null"); + + this.userKey = incomingUserKey; + this.schema = incomingSchema; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.SchemaHelper#getKey() + */ + @Override + public AxKey getUserKey() { + return userKey; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.SchemaHelper#getSchema() + */ + @Override + public AxContextSchema getSchema() { + return schema; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.SchemaHelper#getSchemaClass() + */ + @Override + public Class<?> getSchemaClass() { + return schemaClass; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.SchemaHelper#getSchemaObject() + */ + @Override + public Object getSchemaObject() { + return null; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.SchemaHelper#createNewInstance() + */ + @Override + public Object createNewInstance() { + if (schemaClass == null) { + final String returnString = + userKey.getID() + ": could not create an instance, schema class for the schema is null"; + LOGGER.warn(returnString); + throw new ContextRuntimeException(returnString); + } + + try { + return schemaClass.newInstance(); + } catch (final Exception e) { + final String returnString = + userKey.getID() + ": could not create an instance of class \"" + schemaClass.getCanonicalName() + + "\" using the default constructor \"" + schemaClass.getSimpleName() + "()\""; + LOGGER.warn(returnString, e); + throw new ContextRuntimeException(returnString, e); + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.SchemaHelper#createNewInstance(java.lang.String) + */ + @Override + public Object createNewInstance(final String stringValue) { + if (schemaClass == null) { + final String returnString = + userKey.getID() + ": could not create an instance, schema class for the schema is null"; + LOGGER.warn(returnString); + throw new ContextRuntimeException(returnString); + } + + try { + // Find a string constructor + final Constructor<?> stringConstructor = schemaClass.getConstructor(String.class); + + // Invoke the constructor + return stringConstructor.newInstance(stringValue); + } catch (final Exception e) { + final String returnString = + userKey.getID() + ": could not create an instance of class \"" + schemaClass.getCanonicalName() + + "\" using the string constructor \"" + schemaClass.getSimpleName() + "(String)\""; + LOGGER.warn(returnString, e); + throw new ContextRuntimeException(returnString); + } + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/SchemaHelperFactory.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/SchemaHelperFactory.java new file mode 100644 index 000000000..7252d3772 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/SchemaHelperFactory.java @@ -0,0 +1,119 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.impl.schema; + +import org.onap.policy.apex.context.ContextRuntimeException; +import org.onap.policy.apex.context.SchemaHelper; +import org.onap.policy.apex.context.parameters.SchemaHelperParameters; +import org.onap.policy.apex.context.parameters.SchemaParameters; +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; +import org.onap.policy.apex.model.basicmodel.concepts.AxKey; +import org.onap.policy.apex.model.basicmodel.service.ModelService; +import org.onap.policy.apex.model.basicmodel.service.ParameterService; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchemas; +import org.onap.policy.apex.model.utilities.Assertions; +import org.slf4j.ext.XLogger; +import org.slf4j.ext.XLoggerFactory; + +/** + * This class returns a {@link SchemaHelper} for the particular type of schema mechanism configured for use. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class SchemaHelperFactory { + // Get a reference to the logger + private static final XLogger LOGGER = XLoggerFactory.getXLogger(SchemaHelperFactory.class); + + /** + * Return a {@link SchemaHelper} for the particular type of schema mechanism configured for use. + * + * @param owningEntityKey The key of the entity that owns the schema helper + * @param schemaKey The key of the schema the schema helper is operating on + * @return a lock schema that can handle translation of objects in a particular schema format + * @throws ContextRuntimeException the context runtime exception + */ + public SchemaHelper createSchemaHelper(final AxKey owningEntityKey, final AxArtifactKey schemaKey) + throws ContextRuntimeException { + LOGGER.entry("schema helper factory, owningEntityKey=" + owningEntityKey); + Assertions.argumentNotNull(owningEntityKey, ContextRuntimeException.class, + "Parameter \"owningEntityKey\" may not be null"); + Assertions.argumentNotNull(schemaKey, ContextRuntimeException.class, "Parameter \"schemaKey\" may not be null"); + + // Get the schema for items in the album + final AxContextSchema schema = ModelService.getModel(AxContextSchemas.class).get(schemaKey); + if (schema == null) { + final String resultString = + "schema \"" + schemaKey.getID() + "\" for entity " + owningEntityKey.getID() + " does not exist"; + LOGGER.warn(resultString); + throw new ContextRuntimeException(resultString); + } + + // Get the schema class using the parameter service + final SchemaParameters schemaParameters = ParameterService.getParameters(SchemaParameters.class); + if (schemaParameters == null) { + final String resultString = "context schema parameters \"" + SchemaParameters.class.getCanonicalName() + + "\" not found in parameter service"; + LOGGER.warn(resultString); + throw new ContextRuntimeException(resultString); + } + + // Get the class for the schema helper from the schema parameters + final SchemaHelperParameters schemaHelperParameters = + schemaParameters.getSchemaHelperParameters(schema.getSchemaFlavour()); + if (schemaHelperParameters == null) { + final String resultString = "context schema helper parameters not found for context schema \"" + + schema.getSchemaFlavour() + "\""; + LOGGER.warn(resultString); + throw new ContextRuntimeException(resultString); + } + + // Get the class for the schema helper using reflection + Object schemaHelperObject = null; + final String pluginClass = schemaHelperParameters.getSchemaHelperPluginClass(); + try { + schemaHelperObject = Class.forName(pluginClass).newInstance(); + } catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) { + final String resultString = "Apex context schema helper class not found for context schema helper plugin \"" + + pluginClass + "\""; + LOGGER.warn(resultString, e); + throw new ContextRuntimeException(resultString, e); + } + + // Check the class is a schema helper + if (!(schemaHelperObject instanceof SchemaHelper)) { + final String resultString = "Specified Apex context schema helper plugin class \"" + pluginClass + + "\" does not implement the SchemaHelper interface"; + LOGGER.warn(resultString); + throw new ContextRuntimeException(resultString); + } + + // The context schema helper to return + final SchemaHelper schemaHelper = (SchemaHelper) schemaHelperObject; + + // Lock and load the schema helper + schemaHelper.init(owningEntityKey.getKey(), schema); + + LOGGER.exit("Schema Helper factory, owningEntityKey=" + owningEntityKey + ", selected schema helper of class " + + schemaHelper.getClass()); + return schemaHelper; + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/java/JavaSchemaHelper.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/java/JavaSchemaHelper.java new file mode 100644 index 000000000..b89efbf91 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/java/JavaSchemaHelper.java @@ -0,0 +1,214 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.impl.schema.java; + +import com.google.gson.Gson; +import com.google.gson.JsonElement; + +import java.lang.reflect.Constructor; +import java.util.HashMap; +import java.util.Map; + +import org.onap.policy.apex.context.ContextRuntimeException; +import org.onap.policy.apex.context.impl.schema.AbstractSchemaHelper; +import org.onap.policy.apex.model.basicmodel.concepts.AxKey; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema; +import org.onap.policy.apex.model.utilities.typeutils.TypeBuilder; +import org.slf4j.ext.XLogger; +import org.slf4j.ext.XLoggerFactory; + +/** + * This class implements translation to and from Apex distributed objects and Java objects when a Java schema is used. + * It creates schema items as Java objects and marshals and unmarshals these objects in various formats. All objects + * must be of the type of Java class defined in the schema. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class JavaSchemaHelper extends AbstractSchemaHelper { + // Get a reference to the logger + private static final XLogger LOGGER = XLoggerFactory.getXLogger(JavaSchemaHelper.class); + + // This map defines the built in types in types in Java + // @formatter:off + private static final Map<String, Class<?>> BUILT_IN_MAP = new HashMap<>(); + { + BUILT_IN_MAP.put("int", Integer .TYPE); + BUILT_IN_MAP.put("long", Long .TYPE); + BUILT_IN_MAP.put("double", Double .TYPE); + BUILT_IN_MAP.put("float", Float .TYPE); + BUILT_IN_MAP.put("bool", Boolean .TYPE); + BUILT_IN_MAP.put("char", Character.TYPE); + BUILT_IN_MAP.put("byte", Byte .TYPE); + BUILT_IN_MAP.put("void", Void .TYPE); + BUILT_IN_MAP.put("short", Short .TYPE); + } + // @formatter:on + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.impl.schema.AbstractSchemaHelper#init(org.onap.policy.apex.model.basicmodel. + * concepts. AxKey, org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema) + */ + @Override + public void init(final AxKey userKey, final AxContextSchema schema) throws ContextRuntimeException { + super.init(userKey, schema); + + final String javatype = schema.getSchema(); + // For Java, the schema is the Java class canonical path + + try { + setSchemaClass(TypeBuilder.getJavaTypeClass(schema.getSchema())); + } catch (final IllegalArgumentException e) { + + String resultSting = userKey.getID() + ": class/type " + schema.getSchema() + " for context schema \"" + + schema.getID() + "\" not found."; + if (JavaSchemaHelper.BUILT_IN_MAP.get(javatype) != null) { + resultSting += " Primitive types are not supported. Use the appropriate Java boxing type instead."; + } else { + resultSting += " Check the class path of the JVM"; + } + LOGGER.warn(resultSting); + throw new ContextRuntimeException(resultSting, e); + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.SchemaHelper#createNewInstance(com.google.gson.JsonElement) + */ + @Override + public Object createNewInstance(final JsonElement jsonElement) { + final String elementJsonString = new Gson().toJson(jsonElement); + + return new Gson().fromJson(elementJsonString, this.getSchemaClass()); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.SchemaHelper#object2SchemaObject(java.lang.Object) + */ + @Override + public Object unmarshal(final Object object) { + if (object == null) { + return null; + } + + // If the object is an instance of the incoming object, carry on + if (object.getClass().equals(getSchemaClass())) { + return object; + } + + // For numeric types, do a numeric conversion + if (Number.class.isAssignableFrom(getSchemaClass())) { + return numericConversion(object); + } + + if (getSchemaClass().isAssignableFrom(object.getClass())) { + return object; + } else { + return stringConversion(object); + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.SchemaHelper#schemaObject2Json(java.lang.Object) + */ + @Override + public String marshal2Json(final Object schemaObject) { + if (schemaObject == null) { + return "null"; + } + + // Check the incoming object is of a correct class + if (getSchemaClass().isAssignableFrom(schemaObject.getClass())) { + // Use Gson to translate the object + return new Gson().toJson(schemaObject); + } else { + final String returnString = getUserKey().getID() + ": object \"" + schemaObject.toString() + + "\" of class \"" + schemaObject.getClass().getCanonicalName() + "\" not compatible with class \"" + + getSchemaClass().getCanonicalName() + "\""; + LOGGER.warn(returnString); + throw new ContextRuntimeException(returnString); + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.context.SchemaHelper#marshal2JsonElement(java.lang.Object) + */ + @Override + public JsonElement marshal2JsonElement(final Object schemaObject) { + // Use Gson to marshal the schema object into a Json element to return + return new Gson().toJsonTree(schemaObject, getSchemaClass()); + } + + /** + * Do a numeric conversion between numeric types. + * + * @param object The incoming numeric object + * @return The converted object + */ + private Object numericConversion(final Object object) { + // Check if the incoming object is a number, if not do a string conversion + if (object instanceof Number) { + if (getSchemaClass().isAssignableFrom(Byte.class)) { + return ((Number) object).byteValue(); + } else if (getSchemaClass().isAssignableFrom(Integer.class)) { + return ((Number) object).intValue(); + } else if (getSchemaClass().isAssignableFrom(Long.class)) { + return ((Number) object).longValue(); + } else if (getSchemaClass().isAssignableFrom(Float.class)) { + return ((Number) object).floatValue(); + } else if (getSchemaClass().isAssignableFrom(Double.class)) { + return ((Number) object).doubleValue(); + } + } + + // OK, we'll try and convert from a string representation of the incoming object + return stringConversion(object); + } + + /** + * Do a string conversion to the class type. + * + * @param object The incoming numeric object + * @return The converted object + */ + private Object stringConversion(final Object object) { + // OK, we'll try and convert from a string representation of the incoming object + try { + final Constructor<?> stringConstructor = getSchemaClass().getConstructor(String.class); + return stringConstructor.newInstance(object.toString()); + } catch (final Exception e) { + final String returnString = getUserKey().getID() + ": object \"" + object.toString() + "\" of class \"" + + object.getClass().getCanonicalName() + "\" not compatible with class \"" + + getSchemaClass().getCanonicalName() + "\""; + LOGGER.warn(returnString); + throw new ContextRuntimeException(returnString); + } + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/java/JavaSchemaHelperParameters.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/java/JavaSchemaHelperParameters.java new file mode 100644 index 000000000..18339d8db --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/java/JavaSchemaHelperParameters.java @@ -0,0 +1,38 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.impl.schema.java; + +import org.onap.policy.apex.context.parameters.SchemaHelperParameters; + +/** + * The Schema helper parameter class for the Java schema helper is an empty parameter class that acts as a placeholder. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class JavaSchemaHelperParameters extends SchemaHelperParameters { + + /** + * The Constructor. + */ + public JavaSchemaHelperParameters() { + this.setSchemaHelperPluginClass(JavaSchemaHelper.class.getCanonicalName()); + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/java/package-info.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/java/package-info.java new file mode 100644 index 000000000..052981379 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/java/package-info.java @@ -0,0 +1,27 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +/** + * Provides the Java schema helper for APEX, which manages context items that are Java objects. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ + +package org.onap.policy.apex.context.impl.schema.java; diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/package-info.java b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/package-info.java new file mode 100644 index 000000000..458a86afe --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/impl/schema/package-info.java @@ -0,0 +1,29 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +/** + * Provides an implementation of context schema handling that uses a schema helper plugin to manage schemas and to + * create, marshal, and unmarshal context items in various formats for APEX context. It also provides a default java + * schema handler plugin. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ + +package org.onap.policy.apex.context.impl.schema; diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/monitoring/ContextMonitor.java b/context/context-management/src/main/java/org/onap/policy/apex/context/monitoring/ContextMonitor.java new file mode 100644 index 000000000..8e34ecb1b --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/monitoring/ContextMonitor.java @@ -0,0 +1,210 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.monitoring; + +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; +import org.onap.policy.apex.model.basicmodel.concepts.AxConcept; +import org.onap.policy.apex.model.basicmodel.concepts.AxReferenceKey; +import org.slf4j.ext.XLogger; +import org.slf4j.ext.XLoggerFactory; + +/** + * This class is used to monitor context creates, deletes, gets, sets, locks and unlocks on context items in Apex + * context albums. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class ContextMonitor { + // Logger for this class + private static final XLogger LOGGER = XLoggerFactory.getXLogger(ContextMonitor.class); + + /** + * Monitor an initiation on a context item. + * + * @param albumKey The item album + * @param schemaKey The item schema + * @param name The name of the item + * @param value The value of the item + */ + public void monitorInit(final AxArtifactKey albumKey, final AxArtifactKey schemaKey, final String name, + final Object value) { + LOGGER.trace(monitor("INIT", null, albumKey, schemaKey, name, value)); + } + + /** + * Monitor an initiation on a context item. + * + * @param albumKey The item album + * @param schemaKey The item schema + * @param name The name of the item + * @param value The value of the item + * @param userArtifactStack the keys of the artifacts using the context map at the moment + */ + public void monitorInit(final AxArtifactKey albumKey, final AxArtifactKey schemaKey, final String name, + final Object value, final AxConcept[] userArtifactStack) { + LOGGER.trace(monitor("INIT", userArtifactStack, albumKey, schemaKey, name, value)); + } + + /** + * Monitor a deletion on a context item. + * + * @param albumKey The item album + * @param schemaKey The item schema + * @param name The name of the item + * @param value The value of the item + * @param userArtifactStack the keys of the artifacts using the context map at the moment + */ + public void monitorDelete(final AxArtifactKey albumKey, final AxArtifactKey schemaKey, final String name, + final Object value, final AxConcept[] userArtifactStack) { + LOGGER.trace(monitor("DEL", userArtifactStack, albumKey, schemaKey, name, value)); + } + + /** + * Monitor get on a context item. + * + * @param albumKey The item album + * @param schemaKey The item schema + * @param name The name of the item + * @param value The value of the item + * @param userArtifactStack the keys of the artifacts using the context map at the moment + */ + public void monitorGet(final AxArtifactKey albumKey, final AxArtifactKey schemaKey, final String name, + final Object value, final AxConcept[] userArtifactStack) { + LOGGER.trace(monitor("GET", userArtifactStack, albumKey, schemaKey, name, value)); + } + + /** + * Monitor set on a context item. + * + * @param albumKey The item album + * @param schemaKey The item schema + * @param name The name of the item + * @param value The value of the item + * @param userArtifactStack the keys of the artifacts using the context map at the moment + */ + public void monitorSet(final AxArtifactKey albumKey, final AxArtifactKey schemaKey, final String name, + final Object value, final AxConcept[] userArtifactStack) { + LOGGER.trace(monitor("SET", userArtifactStack, albumKey, schemaKey, name, value)); + } + + /** + * Monitor a read lock on a key. + * + * @param albumKey The item album + * @param schemaKey The item schema + * @param name The name of the item + * @param userArtifactStack the keys of the artifacts using the context map at the moment + */ + public void monitorReadLock(final AxArtifactKey albumKey, final AxArtifactKey schemaKey, final String name, + final AxConcept[] userArtifactStack) { + LOGGER.trace(monitor("READLOCK", userArtifactStack, albumKey, schemaKey, name, null)); + } + + /** + * Monitor a write lock on a key. + * + * @param albumKey The item album + * @param schemaKey The item schema + * @param name The name of the item + * @param userArtifactStack the keys of the artifacts using the context map at the moment + */ + public void monitorWriteLock(final AxArtifactKey albumKey, final AxArtifactKey schemaKey, final String name, + final AxConcept[] userArtifactStack) { + LOGGER.trace(monitor("WRITELOCK", userArtifactStack, albumKey, schemaKey, name, null)); + } + + /** + * Monitor a read unlock on a key. + * + * @param albumKey The item album + * @param schemaKey The item schema + * @param name The name of the item + * @param userArtifactStack the keys of the artifacts using the context map at the moment + */ + public void monitorReadUnlock(final AxArtifactKey albumKey, final AxArtifactKey schemaKey, final String name, + final AxConcept[] userArtifactStack) { + LOGGER.trace(monitor("READUNLOCK", userArtifactStack, albumKey, schemaKey, name, null)); + } + + /** + * Monitor a write unlock on a key. + * + * @param albumKey The item album + * @param schemaKey The item schema + * @param name The name of the item + * @param userArtifactStack the keys of the artifacts using the context map at the moment + */ + public void monitorWriteUnlock(final AxArtifactKey albumKey, final AxArtifactKey schemaKey, final String name, + final AxConcept[] userArtifactStack) { + LOGGER.trace(monitor("WRITEUNLOCK", userArtifactStack, albumKey, schemaKey, name, null)); + } + + /** + * Monitor the user artifact stack. + * + * @param preamble the preamble + * @param userArtifactStack The user stack to print + * @param albumKey the album key + * @param schemaKey the schema key + * @param name the name + * @param value the value + * @return the string + */ + private String monitor(final String preamble, final AxConcept[] userArtifactStack, final AxArtifactKey albumKey, + final AxArtifactKey schemaKey, final String name, final Object value) { + final StringBuilder builder = new StringBuilder(); + + builder.append(preamble); + builder.append(",["); + + if (userArtifactStack != null) { + boolean first = true; + for (final AxConcept stackKey : userArtifactStack) { + if (first) { + first = false; + } else { + builder.append(','); + } + if (stackKey instanceof AxArtifactKey) { + builder.append(((AxArtifactKey) stackKey).getID()); + } else if (stackKey instanceof AxReferenceKey) { + builder.append(((AxReferenceKey) stackKey).getID()); + } else { + builder.append(stackKey.toString()); + } + } + } + builder.append("],"); + + builder.append(albumKey.getID()); + builder.append(','); + builder.append(schemaKey.getID()); + builder.append(','); + builder.append(name); + + if (value != null) { + builder.append(','); + builder.append(value.toString()); + } + + return builder.toString(); + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/monitoring/package-info.java b/context/context-management/src/main/java/org/onap/policy/apex/context/monitoring/package-info.java new file mode 100644 index 000000000..2f8ac8281 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/monitoring/package-info.java @@ -0,0 +1,27 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +/** + * Monitors all creation, deletion, get, set, lock, and unlock operations on items in APEX context albums. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ + +package org.onap.policy.apex.context.monitoring; diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/package-info.java b/context/context-management/src/main/java/org/onap/policy/apex/context/package-info.java new file mode 100644 index 000000000..8707ae36b --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/package-info.java @@ -0,0 +1,29 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +/** + * Provides the context handling for APEX. It provides the infrastructure and generic implementation for context schemas + * and context albums. Schema handlers and context album handlers are implemented as plugins that implement interfaces + * defined in this package. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ + +package org.onap.policy.apex.context; diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/ContextParameters.java b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/ContextParameters.java new file mode 100644 index 000000000..e50cc60b4 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/ContextParameters.java @@ -0,0 +1,146 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.parameters; + +import org.onap.policy.apex.model.basicmodel.service.AbstractParameters; +import org.onap.policy.apex.model.basicmodel.service.ParameterService; + +/** + * Bean class to hold parameters for context handling in Apex. This class contains all the context parameters for schema + * handling, distribution, locking, and persistence of context albums. + * <p> + * The following parameters are defined: + * <ol> + * <li>flushPeriod: Context is flushed to any persistor plugin that is defined periodically, and the period for flushing + * is the flush period. + * <li>distributorParameters: The parameters (a {@link distributorParameters} instance) for the distributor plugin that + * is being used for context album distribution + * <li>schemaParameters: The parameters (a {@link SchemaParameters} instance) for the schema plugin that is being used + * for context album schemas + * <li>lockManagerParameters: The parameters (a {@link LockManagerParameters} instance) for the locking mechanism plugin + * that is being used for context album locking + * <li>persistorParameters: The parameters (a {@link PersistorParameters} instance) for the persistence plugin that is + * being used for context album persistence + * </ol> + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class ContextParameters extends AbstractParameters { + // @formatter:off + // Plugin Parameters + private DistributorParameters distributorParameters = new DistributorParameters(); + private SchemaParameters schemaParameters = new SchemaParameters(); + private LockManagerParameters lockManagerParameters = new LockManagerParameters(); + private PersistorParameters persistorParameters = new PersistorParameters(); + // @formatter:on + + /** + * Constructor to create a context parameters instance and register the instance with the parameter service. + */ + public ContextParameters() { + super(ContextParameters.class.getCanonicalName()); + ParameterService.registerParameters(ContextParameters.class, this); + } + + /** + * Gets the distributor parameters. + * + * @return the distributor parameters + */ + public DistributorParameters getDistributorParameters() { + return distributorParameters; + } + + /** + * Sets the distributor parameters. + * + * @param distributorParameters the distributor parameters + */ + public void setDistributorParameters(final DistributorParameters distributorParameters) { + this.distributorParameters = distributorParameters; + } + + /** + * Gets the schema parameters. + * + * @return the schema parameters + */ + public SchemaParameters getSchemaParameters() { + return schemaParameters; + } + + /** + * Sets the schema parameters. + * + * @param schemaParameters the schema parameters + */ + public void setSchemaParameters(final SchemaParameters schemaParameters) { + this.schemaParameters = schemaParameters; + } + + /** + * Gets the lock manager parameters. + * + * @return the lock manager parameters + */ + public LockManagerParameters getLockManagerParameters() { + return lockManagerParameters; + } + + /** + * Sets the lock manager parameters. + * + * @param lockManagerParameters the lock manager parameters + */ + public void setLockManagerParameters(final LockManagerParameters lockManagerParameters) { + this.lockManagerParameters = lockManagerParameters; + } + + /** + * Gets the persistor parameters. + * + * @return the persistor parameters + */ + public PersistorParameters getPersistorParameters() { + return persistorParameters; + } + + /** + * Sets the persistor parameters. + * + * @param persistorParameters the persistor parameters + */ + public void setPersistorParameters(final PersistorParameters persistorParameters) { + this.persistorParameters = persistorParameters; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.model.basicmodel.service.AbstractParameters#toString() + */ + @Override + public String toString() { + return "ContextParameters [distributorParameters=" + distributorParameters + ", schemaParameters=" + + schemaParameters + ", lockManagerParameters=" + lockManagerParameters + ", persistorParameters=" + + persistorParameters + "]"; + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/DistributorParameters.java b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/DistributorParameters.java new file mode 100644 index 000000000..147e4eb35 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/DistributorParameters.java @@ -0,0 +1,85 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.parameters; + +import org.onap.policy.apex.model.basicmodel.service.AbstractParameters; +import org.onap.policy.apex.model.basicmodel.service.ParameterService; + +/** + * An empty distributor parameter class that may be specialized by context distributor plugins that require plugin + * specific parameters. The class defines the default distributor plugin as the JVM local distributor. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class DistributorParameters extends AbstractParameters { + /** The default distributor makes context albums available to all threads in a single JVM. */ + public static final String DEFAULT_DISTRIBUTOR_PLUGIN_CLASS = + "org.onap.policy.apex.context.impl.distribution.jvmlocal.JVMLocalDistributor"; + + // Plugin class names + private String pluginClass = DEFAULT_DISTRIBUTOR_PLUGIN_CLASS; + + /** + * Constructor to create a distributor parameters instance and register the instance with the parameter service. + */ + public DistributorParameters() { + super(DistributorParameters.class.getCanonicalName()); + ParameterService.registerParameters(DistributorParameters.class, this); + } + + /** + * Constructor to create a distributor parameters instance with the name of a sub class of this class and register + * the instance with the parameter service. + * + * @param parameterClassName the class name of a sub class of this class + */ + public DistributorParameters(final String parameterClassName) { + super(parameterClassName); + } + + /** + * Gets the plugin class. + * + * @return the plugin class + */ + public String getPluginClass() { + return pluginClass; + } + + /** + * Sets the plugin class. + * + * @param pluginClass the plugin class + */ + public void setPluginClass(final String pluginClass) { + this.pluginClass = pluginClass; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.model.basicmodel.service.AbstractParameters#toString() + */ + @Override + public String toString() { + return "DistributorParameters [pluginClass=" + pluginClass + "]"; + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/LockManagerParameters.java b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/LockManagerParameters.java new file mode 100644 index 000000000..93e422357 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/LockManagerParameters.java @@ -0,0 +1,85 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.parameters; + +import org.onap.policy.apex.model.basicmodel.service.AbstractParameters; +import org.onap.policy.apex.model.basicmodel.service.ParameterService; + +/** + * An empty lock manager parameter class that may be specialized by context lock manager plugins that require plugin + * specific parameters. The class defines the default lock manager plugin as the JVM local lock manager. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class LockManagerParameters extends AbstractParameters { + /** The default lock manager can lock context album instance across all threads in a single JVM. */ + public static final String DEFAULT_LOCK_MANAGER_PLUGIN_CLASS = + "org.onap.policy.apex.context.impl.locking.jvmlocal.JVMLocalLockManager"; + + // Plugin class names + private String pluginClass = DEFAULT_LOCK_MANAGER_PLUGIN_CLASS; + + /** + * Constructor to create a lock manager parameters instance and register the instance with the parameter service. + */ + public LockManagerParameters() { + super(LockManagerParameters.class.getCanonicalName()); + ParameterService.registerParameters(LockManagerParameters.class, this); + } + + /** + * Constructor to create a lock manager parameters instance with the name of a sub class of this class and register + * the instance with the parameter service. + * + * @param parameterClassName the class name of a sub class of this class + */ + public LockManagerParameters(final String parameterClassName) { + super(parameterClassName); + } + + /** + * Gets the plugin class. + * + * @return the plugin class + */ + public String getPluginClass() { + return pluginClass; + } + + /** + * Sets the plugin class. + * + * @param pluginClass the plugin class + */ + public void setPluginClass(final String pluginClass) { + this.pluginClass = pluginClass; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.model.basicmodel.service.AbstractParameters#toString() + */ + @Override + public String toString() { + return "LockManagerParameters [pluginClass=" + pluginClass + "]"; + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/PersistorParameters.java b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/PersistorParameters.java new file mode 100644 index 000000000..c9b0d85f8 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/PersistorParameters.java @@ -0,0 +1,120 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.parameters; + +import org.onap.policy.apex.model.basicmodel.service.AbstractParameters; +import org.onap.policy.apex.model.basicmodel.service.ParameterService; + +/** + * A persistor parameter class that may be specialized by context persistor plugins that require plugin specific + * parameters. + * <p> + * The following parameters are defined: + * <ol> + * <li>pluginClass: the persistor plugin as the JVM local dummy ephemeral persistor + * <li>flushPeriod: Context is flushed to any persistor plugin that is defined periodically, and the period for flushing + * is the flush period. + * </ol> + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class PersistorParameters extends AbstractParameters { + /** The default persistor is a dummy persistor that stubs the Persistor interface. */ + public static final String DEFAULT_PERSISTOR_PLUGIN_CLASS = + "org.onap.policy.apex.context.impl.persistence.ephemeral.EphemeralPersistor"; + + /** Default periodic flushing interval, 5 minutes in milliseconds. */ + public static final long DEFAULT_FLUSH_PERIOD = 300000; + + // Plugin class names + private String pluginClass = DEFAULT_PERSISTOR_PLUGIN_CLASS; + + // Parameters for flushing + private long flushPeriod = DEFAULT_FLUSH_PERIOD; + + /** + * Constructor to create a persistor parameters instance and register the instance with the parameter service. + */ + public PersistorParameters() { + super(PersistorParameters.class.getCanonicalName()); + ParameterService.registerParameters(PersistorParameters.class, this); + } + + /** + * Constructor to create a persistor parameters instance with the name of a sub class of this class and register the + * instance with the parameter service. + * + * @param parameterClassName the class name of a sub class of this class + */ + public PersistorParameters(final String parameterClassName) { + super(parameterClassName); + } + + /** + * Gets the plugin class. + * + * @return the plugin class + */ + public String getPluginClass() { + return pluginClass; + } + + /** + * Sets the plugin class. + * + * @param pluginClass the plugin class + */ + public void setPluginClass(final String pluginClass) { + this.pluginClass = pluginClass; + } + + /** + * Gets the flush period in milliseconds. + * + * @return the flush period + */ + public long getFlushPeriod() { + return flushPeriod; + } + + /** + * Sets the flush period in milliseconds. + * + * @param flushPeriod the flush period + */ + public void setFlushPeriod(final long flushPeriod) { + if (flushPeriod <= 0) { + this.flushPeriod = DEFAULT_FLUSH_PERIOD; + } else { + this.flushPeriod = flushPeriod; + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.model.basicmodel.service.AbstractParameters#toString() + */ + @Override + public String toString() { + return "PersistorParameters [pluginClass=" + pluginClass + ", flushPeriod=" + flushPeriod + "]"; + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/SchemaHelperParameters.java b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/SchemaHelperParameters.java new file mode 100644 index 000000000..9ccd431a5 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/SchemaHelperParameters.java @@ -0,0 +1,81 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.parameters; + +import org.onap.policy.apex.model.basicmodel.service.AbstractParameters; +import org.onap.policy.apex.model.basicmodel.service.ParameterService; + +/** + * An empty schema helper parameter class that may be specialized by context schema helper plugins that require plugin + * specific parameters. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class SchemaHelperParameters extends AbstractParameters { + // Schema helper plugin class for the schema + private String schemaHelperPluginClass; + + /** + * Constructor to create a schema helper parameters instance and register the instance with the parameter service. + */ + public SchemaHelperParameters() { + super(SchemaHelperParameters.class.getCanonicalName()); + ParameterService.registerParameters(SchemaHelperParameters.class, this); + } + + /** + * Constructor to create a schema helper parameters instance with the name of a sub class of this class and register + * the instance with the parameter service. + * + * @param parameterClassName the class name of a sub class of this class + */ + public SchemaHelperParameters(final String parameterClassName) { + super(parameterClassName); + } + + /** + * Gets the schema helper plugin class. + * + * @return the schema helper plugin class + */ + public String getSchemaHelperPluginClass() { + return schemaHelperPluginClass; + } + + /** + * Sets the schema helper plugin class. + * + * @param pluginClass the schema helper plugin class + */ + public void setSchemaHelperPluginClass(final String pluginClass) { + schemaHelperPluginClass = pluginClass; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.model.basicmodel.service.AbstractParameters#toString() + */ + @Override + public String toString() { + return "SchemaHelperParameters [schemaHelperPluginClass=" + schemaHelperPluginClass + "]"; + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/SchemaParameters.java b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/SchemaParameters.java new file mode 100644 index 000000000..858a6a3f7 --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/SchemaParameters.java @@ -0,0 +1,87 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.parameters; + +import java.util.Map; +import java.util.TreeMap; + +import org.onap.policy.apex.context.impl.schema.java.JavaSchemaHelperParameters; +import org.onap.policy.apex.model.basicmodel.service.AbstractParameters; +import org.onap.policy.apex.model.basicmodel.service.ParameterService; + +/** + * Bean class holding schema parameters for schemas and their helpers. As more than one schema can be used in Apex + * simultaneously, this class is used to hold the schemas that are defined in a given Apex system and to get the schema + * helper plugin parameters {@link SchemaHelperParameters} for each schema. + * <p> + * The default {@code Java} schema is always defined and its parameters are held in a {@link JavaSchemaHelperParameters} + * instance. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ +public class SchemaParameters extends AbstractParameters { + /** The Java schema flavour is always available for use. */ + public static final String DEFAULT_SCHEMA_FLAVOUR = "Java"; + + // A map of parameters for executors of various logic types + private Map<String, SchemaHelperParameters> schemaHelperParameterMap; + + /** + * Constructor to create a distributor parameters instance and register the instance with the parameter service. + */ + public SchemaParameters() { + super(SchemaParameters.class.getCanonicalName()); + ParameterService.registerParameters(SchemaParameters.class, this); + + schemaHelperParameterMap = new TreeMap<>(); + + // The default schema helper + schemaHelperParameterMap.put(DEFAULT_SCHEMA_FLAVOUR, new JavaSchemaHelperParameters()); + } + + /** + * Gets a map of the schemas and schema helper parameters that are defined. + * + * @return the schema helper parameter map + */ + public Map<String, SchemaHelperParameters> getSchemaHelperParameterMap() { + return schemaHelperParameterMap; + } + + /** + * Sets the map of the schemas and schema helper parameters. + * + * @param schemaHelperParameterMap the schema helper parameter map + */ + public void setSchemaHelperParameterMap(final Map<String, SchemaHelperParameters> schemaHelperParameterMap) { + this.schemaHelperParameterMap = schemaHelperParameterMap; + } + + /** + * Gets the schema helper parameters for a given context schema flavour. + * + * @param schemaFlavour the schema flavour for which to get the schema helper parameters + * @return the schema helper parameters for the given schema flavour + */ + public SchemaHelperParameters getSchemaHelperParameters(final String schemaFlavour) { + return schemaHelperParameterMap.get(schemaFlavour); + } +} diff --git a/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/package-info.java b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/package-info.java new file mode 100644 index 000000000..52a42709c --- /dev/null +++ b/context/context-management/src/main/java/org/onap/policy/apex/context/parameters/package-info.java @@ -0,0 +1,28 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +/** + * Holds the definitions of generic parameters for schema helpers, distributors, lock managers, and persistors in APEX. + * All the parameter definitions can be specialized to provide parameters to APEX plugins. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ + +package org.onap.policy.apex.context.parameters; diff --git a/context/context-management/src/test/java/org/onap/policy/apex/context/impl/schema/java/TestInstanceCreation.java b/context/context-management/src/test/java/org/onap/policy/apex/context/impl/schema/java/TestInstanceCreation.java new file mode 100644 index 000000000..9c2c685c3 --- /dev/null +++ b/context/context-management/src/test/java/org/onap/policy/apex/context/impl/schema/java/TestInstanceCreation.java @@ -0,0 +1,96 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.context.impl.schema.java; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.fail; + +import org.junit.Before; +import org.junit.Test; +import org.onap.policy.apex.context.SchemaHelper; +import org.onap.policy.apex.context.impl.schema.SchemaHelperFactory; +import org.onap.policy.apex.context.parameters.SchemaParameters; +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; +import org.onap.policy.apex.model.basicmodel.concepts.AxKey; +import org.onap.policy.apex.model.basicmodel.service.ModelService; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema; +import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchemas; + +/** + * @author Liam Fallon (liam.fallon@ericsson.com) + * @version + */ +public class TestInstanceCreation { + private final AxKey testKey = new AxArtifactKey("AvroTest", "0.0.1"); + private AxContextSchemas schemas; + + @Before + public void initTest() { + schemas = new AxContextSchemas(new AxArtifactKey("AvroSchemas", "0.0.1")); + ModelService.registerModel(AxContextSchemas.class, schemas); + new SchemaParameters(); + } + + @Test + public void testNullEncoding() { + final AxContextSchema javaBooleanSchema = + new AxContextSchema(new AxArtifactKey("Boolean", "0.0.1"), "Java", "java.lang.Boolean"); + final AxContextSchema javaLongSchema = + new AxContextSchema(new AxArtifactKey("Long", "0.0.1"), "Java", "java.lang.Long"); + final AxContextSchema javaStringSchema = + new AxContextSchema(new AxArtifactKey("String", "0.0.1"), "Java", "java.lang.String"); + + schemas.getSchemasMap().put(javaBooleanSchema.getKey(), javaBooleanSchema); + schemas.getSchemasMap().put(javaLongSchema.getKey(), javaLongSchema); + schemas.getSchemasMap().put(javaStringSchema.getKey(), javaStringSchema); + + final SchemaHelper schemaHelper0 = + new SchemaHelperFactory().createSchemaHelper(testKey, javaBooleanSchema.getKey()); + final SchemaHelper schemaHelper1 = + new SchemaHelperFactory().createSchemaHelper(testKey, javaLongSchema.getKey()); + final SchemaHelper schemaHelper2 = + new SchemaHelperFactory().createSchemaHelper(testKey, javaStringSchema.getKey()); + + try { + schemaHelper0.createNewInstance(); + fail("this test should throw an exception here"); + } catch (final Exception e) { + assertEquals( + "AvroTest:0.0.1: could not create an instance of class \"java.lang.Boolean\" using the default constructor \"Boolean()\"", + e.getMessage()); + } + assertEquals(true, schemaHelper0.createNewInstance("true")); + + + try { + schemaHelper1.createNewInstance(); + fail("this test should throw an exception here"); + } catch (final Exception e) { + assertEquals( + "AvroTest:0.0.1: could not create an instance of class \"java.lang.Long\" using the default constructor \"Long()\"", + e.getMessage()); + } + assertEquals(65536L, schemaHelper1.createNewInstance("65536")); + + assertEquals("", schemaHelper2.createNewInstance()); + assertEquals("true", schemaHelper2.createNewInstance("true")); + } +} diff --git a/context/context-management/src/test/resources/logback-test.xml b/context/context-management/src/test/resources/logback-test.xml new file mode 100644 index 000000000..51398da38 --- /dev/null +++ b/context/context-management/src/test/resources/logback-test.xml @@ -0,0 +1,70 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!-- + ============LICENSE_START======================================================= + Copyright (C) 2016-2018 Ericsson. All rights reserved. + ================================================================================ + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + + SPDX-License-Identifier: Apache-2.0 + ============LICENSE_END========================================================= +--> + +<configuration> + + <contextName>Apex</contextName> + <statusListener class="ch.qos.logback.core.status.OnConsoleStatusListener" /> + <property name="LOG_DIR" value="${java.io.tmpdir}/apex_logging/" /> + + <!-- USE FOR STD OUT ONLY --> + <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> + <encoder> + <Pattern>%d %contextName [%t] %level %logger{36} - %msg%n</Pattern> + </encoder> + </appender> + + <root level="ERROR"> + <appender-ref ref="STDOUT" /> + </root> + + <logger name="org.infinispan" level="ERROR" additivity="false"> + <appender-ref ref="STDOUT" /> + </logger> + + <logger name="org.apache.zookeeper.ClientCnxn" level="OFF" additivity="false"> + <appender-ref ref="STDOUT" /> + </logger> + + <appender name="FILE" class="ch.qos.logback.core.FileAppender"> + <file>${LOG_DIR}/apex.log</file> + <encoder> + <pattern>%d %-5relative [procId=${processId}] [%thread] %-5level + %logger{26} - %msg %n %ex{full}</pattern> + </encoder> + </appender> + + <appender name="CTXT_FILE" class="ch.qos.logback.core.FileAppender"> + <file>${LOG_DIR}/apex_ctxt.log</file> + <encoder> + <pattern>%d %-5relative [procId=${processId}] [%thread] %-5level + %logger{26} - %msg %n %ex{full}</pattern> + </encoder> + </appender> + + <logger name="org.onap.policy.apex.core.context.impl.monitoring" level="ERROR" additivity="false"> + <appender-ref ref="CTXT_FILE" /> + </logger> + + <logger name="org.onap.policy.apex.core.context" level="TRACE" additivity="false"> + <appender-ref ref="STDOUT" /> + </logger> +</configuration> |