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-rw-r--r--services/services-engine/src/main/java/org/onap/policy/apex/service/engine/runtime/impl/EngineWorker.java150
1 files changed, 66 insertions, 84 deletions
diff --git a/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/runtime/impl/EngineWorker.java b/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/runtime/impl/EngineWorker.java
index a5de624d1..0ca7fe837 100644
--- a/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/runtime/impl/EngineWorker.java
+++ b/services/services-engine/src/main/java/org/onap/policy/apex/service/engine/runtime/impl/EngineWorker.java
@@ -1,6 +1,7 @@
/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * Copyright (C) 2019 Nordix Foundation.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -61,13 +62,12 @@ import org.slf4j.ext.XLogger;
import org.slf4j.ext.XLoggerFactory;
/**
- * The Class EngineWorker encapsulates a core {@link ApexEngine} instance, which runs policies
- * defined in the {@link org.onap.policy.apex.model.basicmodel.concepts.AxModelAxModel}. Each policy
- * is triggered by an Apex event, and when the policy is triggered it runs through to completion in
- * the ApexEngine.
+ * The Class EngineWorker encapsulates a core {@link ApexEngine} instance, which runs policies defined in the
+ * {@link org.onap.policy.apex.model.basicmodel.concepts.AxModelAxModel}. Each policy is triggered by an Apex event, and
+ * when the policy is triggered it runs through to completion in the ApexEngine.
*
- * <p>This class acts as a container for an {@link ApexEngine}, running it in a thread, sending it
- * events, and receiving events from it.
+ * <p>This class acts as a container for an {@link ApexEngine}, running it in a thread, sending it events, and receiving
+ * events from it.
*
* @author Liam Fallon (liam.fallon@ericsson.com)
*/
@@ -99,8 +99,8 @@ final class EngineWorker implements EngineService {
private ApexEvent2EnEventConverter apexEnEventConverter = null;
/**
- * Constructor that creates an Apex engine, an event processor for events to be sent to that
- * engine, and an {@link ApexModelReader} instance to read Apex models using JAXB.
+ * Constructor that creates an Apex engine, an event processor for events to be sent to that engine, and an
+ * {@link ApexModelReader} instance to read Apex models using JAXB.
*
* @param engineWorkerKey the engine worker key
* @param queue the queue on which events for this Apex worker will come
@@ -108,7 +108,7 @@ final class EngineWorker implements EngineService {
* @throws ApexException thrown on errors on worker instantiation
*/
protected EngineWorker(final AxArtifactKey engineWorkerKey, final BlockingQueue<ApexEvent> queue,
- final ApplicationThreadFactory threadFactory) {
+ final ApplicationThreadFactory threadFactory) {
LOGGER.entry(engineWorkerKey);
this.engineWorkerKey = engineWorkerKey;
@@ -129,9 +129,8 @@ final class EngineWorker implements EngineService {
/*
* (non-Javadoc)
*
- * @see
- * org.onap.policy.apex.service.engine.runtime.EngineService#registerActionListener(java.lang.
- * String, org.onap.policy.apex.service.engine.runtime.ApexEventListener)
+ * @see org.onap.policy.apex.service.engine.runtime.EngineService#registerActionListener(java.lang. String,
+ * org.onap.policy.apex.service.engine.runtime.ApexEventListener)
*/
@Override
public void registerActionListener(final String listenerName, final ApexEventListener apexEventListener) {
@@ -141,9 +140,7 @@ final class EngineWorker implements EngineService {
/*
* (non-Javadoc)
*
- * @see
- * org.onap.policy.apex.service.engine.runtime.EngineService#deregisterActionListener(java.lang.
- * String)
+ * @see org.onap.policy.apex.service.engine.runtime.EngineService#deregisterActionListener(java.lang. String)
*/
@Override
public void deregisterActionListener(final String listenerName) {
@@ -153,13 +150,12 @@ final class EngineWorker implements EngineService {
/*
* (non-Javadoc)
*
- * @see
- * org.onap.policy.apex.service.engine.runtime.EngineService#getEngineServiceEventInterface()
+ * @see org.onap.policy.apex.service.engine.runtime.EngineService#getEngineServiceEventInterface()
*/
@Override
public EngineServiceEventInterface getEngineServiceEventInterface() {
throw new UnsupportedOperationException(
- "getEngineServiceEventInterface() call is not allowed on an Apex Engine Worker");
+ "getEngineServiceEventInterface() call is not allowed on an Apex Engine Worker");
}
/*
@@ -199,13 +195,12 @@ final class EngineWorker implements EngineService {
/*
* (non-Javadoc)
*
- * @see
- * org.onap.policy.apex.service.engine.runtime.EngineService#updateModel(org.onap.policy.apex.
- * model. basicmodel.concepts.AxArtifactKey, java.lang.String, boolean)
+ * @see org.onap.policy.apex.service.engine.runtime.EngineService#updateModel(org.onap.policy.apex. model.
+ * basicmodel.concepts.AxArtifactKey, java.lang.String, boolean)
*/
@Override
public void updateModel(final AxArtifactKey engineKey, final String engineModel, final boolean forceFlag)
- throws ApexException {
+ throws ApexException {
LOGGER.entry(engineKey);
// Read the Apex model into memory using the Apex Model Reader
@@ -227,20 +222,18 @@ final class EngineWorker implements EngineService {
/*
* (non-Javadoc)
*
- * @see
- * org.onap.policy.apex.service.engine.runtime.EngineService#updateModel(org.onap.policy.apex.
- * model. basicmodel.concepts.AxArtifactKey,
- * org.onap.policy.apex.model.policymodel.concepts.AxPolicyModel, boolean)
+ * @see org.onap.policy.apex.service.engine.runtime.EngineService#updateModel(org.onap.policy.apex. model.
+ * basicmodel.concepts.AxArtifactKey, org.onap.policy.apex.model.policymodel.concepts.AxPolicyModel, boolean)
*/
@Override
public void updateModel(final AxArtifactKey engineKey, final AxPolicyModel apexModel, final boolean forceFlag)
- throws ApexException {
+ throws ApexException {
LOGGER.entry(engineKey);
// Check if the key on the update request is correct
if (!engineWorkerKey.equals(engineKey)) {
String message = ENGINE_KEY_PREFIX + engineKey.getId() + BAD_KEY_MATCH_TAG + engineWorkerKey.getId()
- + ENGINE_SUFFIX;
+ + ENGINE_SUFFIX;
LOGGER.warn(message);
throw new ApexException(message);
}
@@ -252,19 +245,18 @@ final class EngineWorker implements EngineService {
if (!currentModel.getKey().isCompatible(apexModel.getKey())) {
if (forceFlag) {
LOGGER.warn("apex model update forced, supplied model with key \"" + apexModel.getKey().getId()
- + "\" is not a compatible model update from the existing engine model with key \""
- + currentModel.getKey().getId() + "\"");
+ + "\" is not a compatible model update from the existing engine model with key \""
+ + currentModel.getKey().getId() + "\"");
} else {
throw new ContextException(
- "apex model update failed, supplied model with key \"" + apexModel.getKey().getId()
- + "\" is not a compatible model update from the existing engine model with key \""
- + currentModel.getKey().getId() + "\"");
+ "apex model update failed, supplied model with key \"" + apexModel.getKey().getId()
+ + "\" is not a compatible model update from the existing engine model with key \""
+ + currentModel.getKey().getId() + "\"");
}
}
}
// Update the Apex model in the Apex engine
- engine.clear();
engine.updateModel(apexModel);
LOGGER.debug("engine model {} added to the engine-{}", apexModel.getKey().getId(), engineWorkerKey);
@@ -294,9 +286,8 @@ final class EngineWorker implements EngineService {
/*
* (non-Javadoc)
*
- * @see
- * org.onap.policy.apex.service.engine.runtime.EngineService#start(org.onap.policy.apex.core.
- * model. concepts.AxArtifactKey)
+ * @see org.onap.policy.apex.service.engine.runtime.EngineService#start(org.onap.policy.apex.core. model.
+ * concepts.AxArtifactKey)
*/
@Override
public void start(final AxArtifactKey engineKey) throws ApexException {
@@ -304,16 +295,16 @@ final class EngineWorker implements EngineService {
// Check if the key on the start request is correct
if (!engineWorkerKey.equals(engineKey)) {
- LOGGER.warn(ENGINE_KEY_PREFIX + engineKey.getId() + BAD_KEY_MATCH_TAG + engineWorkerKey.getId()
- + ENGINE_SUFFIX);
- throw new ApexException(ENGINE_KEY_PREFIX + engineKey.getId() + BAD_KEY_MATCH_TAG
- + engineWorkerKey.getId() + ENGINE_SUFFIX);
+ LOGGER.warn(
+ ENGINE_KEY_PREFIX + engineKey.getId() + BAD_KEY_MATCH_TAG + engineWorkerKey.getId() + ENGINE_SUFFIX);
+ throw new ApexException(
+ ENGINE_KEY_PREFIX + engineKey.getId() + BAD_KEY_MATCH_TAG + engineWorkerKey.getId() + ENGINE_SUFFIX);
}
// Starts the event processing thread that handles incoming events
if (processorThread != null && processorThread.isAlive()) {
String message = ENGINE_FOR_KEY_PREFIX + engineWorkerKey.getId() + " is already running with state "
- + getState();
+ + getState();
LOGGER.error(message);
throw new ApexException(message);
}
@@ -341,26 +332,25 @@ final class EngineWorker implements EngineService {
/*
* (non-Javadoc)
*
- * @see
- * org.onap.policy.apex.service.engine.runtime.EngineService#stop(org.onap.policy.apex.core.
- * model. concepts.AxArtifactKey)
+ * @see org.onap.policy.apex.service.engine.runtime.EngineService#stop(org.onap.policy.apex.core. model.
+ * concepts.AxArtifactKey)
*/
@Override
public void stop(final AxArtifactKey engineKey) throws ApexException {
// Check if the key on the start request is correct
if (!engineWorkerKey.equals(engineKey)) {
- LOGGER.warn(ENGINE_KEY_PREFIX + engineKey.getId() + BAD_KEY_MATCH_TAG + engineWorkerKey.getId()
- + ENGINE_SUFFIX);
- throw new ApexException(ENGINE_KEY_PREFIX + engineKey.getId() + BAD_KEY_MATCH_TAG
- + engineWorkerKey.getId() + ENGINE_SUFFIX);
+ LOGGER.warn(
+ ENGINE_KEY_PREFIX + engineKey.getId() + BAD_KEY_MATCH_TAG + engineWorkerKey.getId() + ENGINE_SUFFIX);
+ throw new ApexException(
+ ENGINE_KEY_PREFIX + engineKey.getId() + BAD_KEY_MATCH_TAG + engineWorkerKey.getId() + ENGINE_SUFFIX);
}
// Interrupt the worker to stop its thread
if (processorThread == null || !processorThread.isAlive()) {
processorThread = null;
- LOGGER.warn(ENGINE_FOR_KEY_PREFIX + engineWorkerKey.getId() + " is already stopped with state "
- + getState());
+ LOGGER
+ .warn(ENGINE_FOR_KEY_PREFIX + engineWorkerKey.getId() + " is already stopped with state " + getState());
return;
}
@@ -387,24 +377,22 @@ final class EngineWorker implements EngineService {
/*
* (non-Javadoc)
*
- * @see
- * org.onap.policy.apex.service.engine.runtime.EngineService#clear(org.onap.policy.apex.core.
- * model. concepts.AxArtifactKey)
+ * @see org.onap.policy.apex.service.engine.runtime.EngineService#clear(org.onap.policy.apex.core. model.
+ * concepts.AxArtifactKey)
*/
@Override
public void clear(final AxArtifactKey engineKey) throws ApexException {
// Check if the key on the start request is correct
if (!engineWorkerKey.equals(engineKey)) {
- LOGGER.warn(ENGINE_KEY_PREFIX + engineKey.getId() + BAD_KEY_MATCH_TAG + engineWorkerKey.getId()
- + ENGINE_SUFFIX);
- throw new ApexException(ENGINE_KEY_PREFIX + engineKey.getId() + BAD_KEY_MATCH_TAG
- + engineWorkerKey.getId() + ENGINE_SUFFIX);
+ LOGGER.warn(
+ ENGINE_KEY_PREFIX + engineKey.getId() + BAD_KEY_MATCH_TAG + engineWorkerKey.getId() + ENGINE_SUFFIX);
+ throw new ApexException(
+ ENGINE_KEY_PREFIX + engineKey.getId() + BAD_KEY_MATCH_TAG + engineWorkerKey.getId() + ENGINE_SUFFIX);
}
// Interrupt the worker to stop its thread
if (processorThread != null && !processorThread.isAlive()) {
- LOGGER.warn(ENGINE_FOR_KEY_PREFIX + engineWorkerKey.getId() + " is not stopped with state "
- + getState());
+ LOGGER.warn(ENGINE_FOR_KEY_PREFIX + engineWorkerKey.getId() + " is not stopped with state " + getState());
return;
}
@@ -427,9 +415,8 @@ final class EngineWorker implements EngineService {
/*
* (non-Javadoc)
*
- * @see
- * org.onap.policy.apex.service.engine.runtime.EngineService#isStarted(org.onap.policy.apex.
- * model. basicmodel.concepts.AxArtifactKey)
+ * @see org.onap.policy.apex.service.engine.runtime.EngineService#isStarted(org.onap.policy.apex. model.
+ * basicmodel.concepts.AxArtifactKey)
*/
@Override
public boolean isStarted(final AxArtifactKey engineKey) {
@@ -461,9 +448,8 @@ final class EngineWorker implements EngineService {
/*
* (non-Javadoc)
*
- * @see
- * org.onap.policy.apex.service.engine.runtime.EngineService#isStopped(org.onap.policy.apex.
- * model. basicmodel.concepts.AxArtifactKey)
+ * @see org.onap.policy.apex.service.engine.runtime.EngineService#isStopped(org.onap.policy.apex. model.
+ * basicmodel.concepts.AxArtifactKey)
*/
@Override
public boolean isStopped(final AxArtifactKey engineKey) {
@@ -505,9 +491,8 @@ final class EngineWorker implements EngineService {
/*
* (non-Javadoc)
*
- * @see
- * org.onap.policy.apex.service.engine.runtime.EngineService#getStatus(org.onap.policy.apex.core
- * .model .concepts.AxArtifactKey)
+ * @see org.onap.policy.apex.service.engine.runtime.EngineService#getStatus(org.onap.policy.apex.core .model
+ * .concepts.AxArtifactKey)
*/
@Override
public String getStatus(final AxArtifactKey engineKey) {
@@ -531,8 +516,7 @@ final class EngineWorker implements EngineService {
/*
* (non-Javadoc)
*
- * @see
- * org.onap.policy.apex.service.engine.runtime.EngineService#getRuntimeInfo(org.onap.policy.apex
+ * @see org.onap.policy.apex.service.engine.runtime.EngineService#getRuntimeInfo(org.onap.policy.apex
* .core.model.concepts.AxArtifactKey)
*/
@Override
@@ -570,20 +554,19 @@ final class EngineWorker implements EngineService {
runtimeJsonStringBuilder.append(gson.toJson(contextAlbumEntry.getKey()));
runtimeJsonStringBuilder.append(",\"AlbumContent\":[");
-
// Get the schema helper to use to marshal context album objects to JSON
- final AxContextAlbum axContextAlbum =
- ModelService.getModel(AxContextAlbums.class).get(contextAlbumEntry.getKey());
+ final AxContextAlbum axContextAlbum = ModelService.getModel(AxContextAlbums.class)
+ .get(contextAlbumEntry.getKey());
SchemaHelper schemaHelper = null;
try {
// Get a schema helper to manage the translations between objects on the album map
// for this album
schemaHelper = new SchemaHelperFactory().createSchemaHelper(axContextAlbum.getKey(),
- axContextAlbum.getItemSchema());
+ axContextAlbum.getItemSchema());
} catch (final ContextRuntimeException e) {
- final String resultString =
- "could not find schema helper to marshal context album \"" + axContextAlbum + "\" to JSON";
+ final String resultString = "could not find schema helper to marshal context album \"" + axContextAlbum
+ + "\" to JSON";
LOGGER.warn(resultString, e);
// End of context album entry
@@ -626,9 +609,9 @@ final class EngineWorker implements EngineService {
}
/**
- * This is an event processor thread, this class decouples the events handling logic from core
- * business logic. This class runs its own thread and continuously querying the blocking queue
- * for the events that have been sent to the worker for processing by the Apex engine.
+ * This is an event processor thread, this class decouples the events handling logic from core business logic. This
+ * class runs its own thread and continuously querying the blocking queue for the events that have been sent to the
+ * worker for processing by the Apex engine.
*
* @author Liam Fallon (liam.fallon@ericsson.com)
*/
@@ -640,8 +623,7 @@ final class EngineWorker implements EngineService {
/**
* Constructor accepts {@link ApexEngine} and {@link BlockingQueue} type objects.
*
- * @param eventProcessingQueue is reference of {@link BlockingQueue} which contains trigger
- * events.
+ * @param eventProcessingQueue is reference of {@link BlockingQueue} which contains trigger events.
*/
EventProcessor(final BlockingQueue<ApexEvent> eventProcessingQueue) {
this.eventProcessingQueue = eventProcessingQueue;
@@ -659,7 +641,7 @@ final class EngineWorker implements EngineService {
// Take events from the event processing queue of the worker and pass them to the engine
// for processing
boolean stopFlag = false;
- while (processorThread != null && !processorThread.isInterrupted() && ! stopFlag) {
+ while (processorThread != null && !processorThread.isInterrupted() && !stopFlag) {
ApexEvent event = null;
try {
event = eventProcessingQueue.take();
@@ -673,7 +655,7 @@ final class EngineWorker implements EngineService {
try {
if (event != null) {
debugEventIfDebugEnabled(event);
-
+
final EnEvent enevent = apexEnEventConverter.fromApexEvent(event);
engine.handleEvent(enevent);
}