add SDC client and reception handle

. add reception framework wraps handle and subplug interface
. add plugins include sdc handler now.
. add forward acts the post interface for specified item like artifact
. add model acts for the sepcifeid item like CSAR
. update pom.xml and package/pom.xml to includes all submodules
. Fix the compile issue by typo and change groupid to framework

Change-Id: Idbff0ca612045c6ee52ba23cd305f2764c9600f8
Issue-ID: MULTICLOUD-514
Signed-off-by: liboNet <libo.zhu@intel.com>

11 files changed, 899 insertions, 0 deletions

diff --git a/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/decoding/PluginInitializationException.java b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/decoding/PluginInitializationException.java
new file mode 100644
index 0000000..4dd36a7
--- /dev/null
+++ b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/decoding/PluginInitializationException.java
@@ -0,0 +1,51 @@
+/*-
+ * ============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=========================================================
+ */
+
+package org.onap.policy.distribution.reception.decoding;
+
+/**
+ * This exception will be called if an error occurs while initializing distribution plugins.
+ *
+ * @author Ram Krishna Verma (ram.krishna.verma@ericsson.com)
+ */
+public class PluginInitializationException extends Exception {
+
+    private static final long serialVersionUID = 3809376274411309160L;
+
+    /**
+     * Construct an instance with the given message.
+     *
+     * @param message the error message
+     */
+    public PluginInitializationException(final String message) {
+        super(message);
+    }
+
+    /**
+     * Construct an instance with the given message and cause.
+     *
+     * @param message the error message
+     * @param cause the cause
+     */
+    public PluginInitializationException(final String message, final Throwable cause) {
+        super(message, cause);
+    }
+
+}
diff --git a/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/decoding/PluginTerminationException.java b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/decoding/PluginTerminationException.java
new file mode 100644
index 0000000..be9f51c
--- /dev/null
+++ b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/decoding/PluginTerminationException.java
@@ -0,0 +1,51 @@
+/*-
+ * ============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=========================================================
+ */
+
+package org.onap.policy.distribution.reception.decoding;
+
+/**
+ * This exception will be called if an error occurs while terminating distribution plugins.
+ *
+ * @author Ram Krishna Verma (ram.krishna.verma@ericsson.com)
+ */
+public class PluginTerminationException extends Exception {
+
+    private static final long serialVersionUID = 3809376274411309160L;
+
+    /**
+     * Construct an instance with the given message.
+     *
+     * @param message the error message
+     */
+    public PluginTerminationException(final String message) {
+        super(message);
+    }
+
+    /**
+     * Construct an instance with the given message and cause.
+     *
+     * @param message the error message
+     * @param cause the cause
+     */
+    public PluginTerminationException(final String message, final Throwable cause) {
+        super(message, cause);
+    }
+
+}
diff --git a/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/decoding/PolicyDecodingException.java b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/decoding/PolicyDecodingException.java
new file mode 100644
index 0000000..5f2923d
--- /dev/null
+++ b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/decoding/PolicyDecodingException.java
@@ -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=========================================================
+ */
+
+package org.onap.policy.distribution.reception.decoding;
+
+/**
+ * An error has occured while decoding a policy.
+ */
+public class PolicyDecodingException extends Exception {
+
+    private static final long serialVersionUID = 3809376274411309160L;
+
+    /**
+     * Construct an instance with the given message.
+     * 
+     * @param message the error message
+     */
+    public PolicyDecodingException(String message) {
+        super(message);
+    }
+
+    /**
+     * Construct an instance with the given message and cause.
+     * 
+     * @param message the error message
+     * @param cause the cause
+     */
+    public PolicyDecodingException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+}
diff --git a/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/handling/AbstractReceptionHandler.java b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/handling/AbstractReceptionHandler.java
new file mode 100644
index 0000000..7081dc7
--- /dev/null
+++ b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/handling/AbstractReceptionHandler.java
@@ -0,0 +1,89 @@
+/*-
+ * ============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=========================================================
+ */
+
+package org.onap.policy.distribution.reception.handling;
+
+import java.util.ArrayList;
+import java.util.Collection;
+
+import org.onap.policy.common.logging.flexlogger.FlexLogger;
+import org.onap.policy.common.logging.flexlogger.Logger;
+import org.onap.policy.common.parameters.ParameterService;
+import org.onap.policy.distribution.forwarding.ArtifactForwarder;
+import org.onap.policy.distribution.forwarding.ArtifactForwardingException;
+import org.onap.policy.distribution.model.PolicyInput;
+import org.onap.policy.distribution.reception.decoding.PluginInitializationException;
+import org.onap.policy.distribution.reception.decoding.PolicyDecodingException;
+import org.onap.policy.distribution.reception.parameters.ReceptionHandlerParameters;
+
+import org.onap.sdc.api.notification.IArtifactInfo;
+/**
+ * Base implementation of {@link ReceptionHandler}. All reception handlers should extend this base class by implementing
+ * the {@link #initializeReception(String)} method to perform the specific initialization required to receive inputs and
+ * by invoking {@link #inputReceived(PolicyInput)} when the reception handler receives input.
+ */
+public abstract class AbstractReceptionHandler implements ReceptionHandler {
+
+    private static final Logger LOGGER = FlexLogger.getLogger(AbstractReceptionHandler.class);
+
+    private PluginHandler pluginHandler;
+
+    /**
+     * {@inheritDoc}.
+     */
+    @Override
+    public void initialize(final String parameterGroupName) throws PluginInitializationException {
+        final ReceptionHandlerParameters receptionHandlerParameters = ParameterService.get(parameterGroupName);
+        pluginHandler = new PluginHandler(receptionHandlerParameters.getPluginHandlerParameters().getName());
+        initializeReception(receptionHandlerParameters.getReceptionHandlerConfigurationName());
+    }
+
+    /**
+     * Sub classes must implement this method to perform the specific initialization required to receive inputs, for
+     * example setting up subscriptions.
+     *
+     * @param parameterGroupName the parameter group name
+     * @throws PluginInitializationException if initialization of reception handler fails
+     */
+    protected abstract void initializeReception(String parameterGroupName) throws PluginInitializationException;
+
+    /**
+     * Handle input that has been received. The given input shall be decoded using the s configured
+     * for this reception handler and forwarded using the {@link ArtifactForwarder}s configured for this reception
+     * handler.
+     *
+     * @param policyInput the input that has been received
+     * @throws PolicyDecodingException if an error occurs in decoding a policy from the received input
+     */
+    protected void inputReceived(final PolicyInput policyInput) throws PolicyDecodingException {
+
+        final Collection<IArtifactInfo> policies = new ArrayList<>();
+
+        for (final ArtifactForwarder policyForwarder : pluginHandler.getArtifactForwarders()) {
+            try {
+                policyForwarder.forward(policies);
+            } catch (final ArtifactForwardingException policyForwardingException) {
+                LOGGER.error("Error when forwarding policies to " + policyForwarder, policyForwardingException);
+            }
+        }
+    }
+
+
+}
diff --git a/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/handling/PluginHandler.java b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/handling/PluginHandler.java
new file mode 100644
index 0000000..e7e77ba
--- /dev/null
+++ b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/handling/PluginHandler.java
@@ -0,0 +1,88 @@
+/*-
+ * ============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=========================================================
+ */
+
+package org.onap.policy.distribution.reception.handling;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Map;
+
+import org.onap.policy.common.logging.flexlogger.FlexLogger;
+import org.onap.policy.common.logging.flexlogger.Logger;
+import org.onap.policy.common.parameters.ParameterService;
+import org.onap.policy.distribution.forwarding.ArtifactForwarder;
+import org.onap.policy.distribution.forwarding.parameters.ArtifactForwarderParameters;
+import org.onap.policy.distribution.reception.decoding.PluginInitializationException;
+import org.onap.policy.distribution.reception.parameters.PluginHandlerParameters;
+
+/**
+ * Handles the plugins to policy distribution.
+ */
+public class PluginHandler {
+
+    private static final Logger LOGGER = FlexLogger.getLogger(PluginHandler.class);
+
+    private Collection<ArtifactForwarder> artifactForwarders;
+
+    /**
+     * Create an instance to instantiate plugins based on the given parameter group.
+     *
+     * @param parameterGroupName the name of the parameter group
+     * @throws PluginInitializationException exception if it occurs
+     */
+    public PluginHandler(final String parameterGroupName) throws PluginInitializationException {
+        final PluginHandlerParameters params = ParameterService.get(parameterGroupName);
+        initArtifactForwarders(params.getArtifactForwarders());
+    }
+
+    /**
+     * Get the policy forwarders.
+     *
+     * @return the policy forwarders
+     */
+    public Collection<ArtifactForwarder> getArtifactForwarders() {
+        return artifactForwarders;
+    }
+
+    /**
+     * Initialize policy forwarders.
+     *
+     * @param artifactForwarderParameters exception if it occurs
+     * @throws PluginInitializationException exception if it occurs
+     */
+    @SuppressWarnings("unchecked")
+    private void initArtifactForwarders(final Map<String, ArtifactForwarderParameters> artifactForwarderParameters)
+            throws PluginInitializationException {
+        artifactForwarders = new ArrayList<>();
+        for (final ArtifactForwarderParameters forwarderParameters : artifactForwarderParameters.values()) {
+            try {
+                final Class<ArtifactForwarder> artifactForwarderClass =
+                        (Class<ArtifactForwarder>) Class.forName(forwarderParameters.getForwarderClassName());
+                final ArtifactForwarder artifactForwarder = artifactForwarderClass.newInstance();
+                artifactForwarder.configure(forwarderParameters.getForwarderConfigurationName());
+                artifactForwarders.add(artifactForwarder);
+            } catch (final ClassNotFoundException | InstantiationException | IllegalAccessException exp) {
+                LOGGER.error("exception occured while initializing forwarders", exp);
+                throw new PluginInitializationException(exp.getMessage(), exp.getCause());
+            }
+        }
+    }
+
+}
diff --git a/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/handling/ReceptionHandler.java b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/handling/ReceptionHandler.java
new file mode 100644
index 0000000..3678c69
--- /dev/null
+++ b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/handling/ReceptionHandler.java
@@ -0,0 +1,46 @@
+/*-
+ * ============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=========================================================
+ */
+
+package org.onap.policy.distribution.reception.handling;
+
+import org.onap.policy.distribution.reception.decoding.PluginInitializationException;
+import org.onap.policy.distribution.reception.decoding.PluginTerminationException;
+
+/**
+ * Handles input into Policy Distribution which may be decoded into a Policy.
+ */
+public interface ReceptionHandler {
+
+    /**
+     * Initialize the reception handler with the given parameters.
+     *
+     * @param parameterGroupName the name of the parameter group containing the configuration for the reception handler
+     * @throws PluginInitializationException exception if it occurs
+     */
+    void initialize(String parameterGroupName) throws PluginInitializationException;
+
+    /**
+     * Destroy the reception handler, removing any subscriptions and releasing all resources.
+     *
+     * @throws PluginTerminationException if it occurs
+     */
+    void destroy() throws PluginTerminationException;
+
+}
diff --git a/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/parameters/PluginHandlerParameters.java b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/parameters/PluginHandlerParameters.java
new file mode 100644
index 0000000..70ab18e
--- /dev/null
+++ b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/parameters/PluginHandlerParameters.java
@@ -0,0 +1,94 @@
+/*-
+ * ============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=========================================================
+ */
+
+package org.onap.policy.distribution.reception.parameters;
+
+import java.util.Map;
+import java.util.Map.Entry;
+
+import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ParameterGroup;
+import org.onap.policy.common.parameters.ValidationStatus;
+import org.onap.policy.distribution.forwarding.parameters.ArtifactForwarderParameters;
+
+/**
+ * Class to hold all the plugin handler parameters.
+ *
+ * @author Ram Krishna Verma (ram.krishna.verma@ericsson.com)
+ */
+public class PluginHandlerParameters implements ParameterGroup {
+
+    private static final String PLUGIN_HANDLER = "_PluginHandler";
+
+    private String name;
+    private Map<String, ArtifactForwarderParameters> artifactForwarders;
+
+    /**
+     * Constructor for instantiating PluginHandlerParameters.
+     *
+     * @param artifactForwarders the map of policy forwarders
+     */
+    public PluginHandlerParameters(
+            final Map<String, ArtifactForwarderParameters> artifactForwarders) {
+        this.artifactForwarders = artifactForwarders;
+    }
+
+    /**
+     * Return the artifactForwarders of this PluginHandlerParameters instance.
+     *
+     * @return the artifactForwarders
+     */
+    public Map<String, ArtifactForwarderParameters> getArtifactForwarders() {
+        return artifactForwarders;
+    }
+
+    @Override
+    public String getName() {
+        return name + PLUGIN_HANDLER;
+    }
+
+    /**
+     * Validate the plugin handler parameters.
+     *
+     */
+    @Override
+    public GroupValidationResult validate() {
+        final GroupValidationResult validationResult = new GroupValidationResult(this);
+        if (artifactForwarders == null || artifactForwarders.size() == 0) {
+            validationResult.setResult("artifactForwarders", ValidationStatus.INVALID,
+                    "must have at least one policy forwarder");
+        } else {
+            for (final Entry<String, ArtifactForwarderParameters> nestedGroupEntry : artifactForwarders.entrySet()) {
+                validationResult.setResult("artifactForwarders", nestedGroupEntry.getKey(),
+                        nestedGroupEntry.getValue().validate());
+            }
+        }
+        return validationResult;
+    }
+
+    /**
+     * Set the name of this group.
+     *
+     * @param name the name to set.
+     */
+    public void setName(final String name) {
+        this.name = name;
+    }
+}
diff --git a/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/parameters/ReceptionHandlerConfigurationParameterGroup.java b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/parameters/ReceptionHandlerConfigurationParameterGroup.java
new file mode 100644
index 0000000..3fa877d
--- /dev/null
+++ b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/parameters/ReceptionHandlerConfigurationParameterGroup.java
@@ -0,0 +1,44 @@
+/*-
+ * ============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=========================================================
+ */
+
+package org.onap.policy.distribution.reception.parameters;
+
+import org.onap.policy.common.parameters.ParameterGroup;
+import org.onap.policy.distribution.reception.handling.ReceptionHandler;
+
+/**
+ * Base class of all {@link ParameterGroup} classes for configuration parameters for
+ * {@link ReceptionHandler} classes.
+ */
+public abstract class ReceptionHandlerConfigurationParameterGroup implements ParameterGroup {
+
+    private String name;
+
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public void setName(final String name) {
+        this.name = name;
+    }
+
+}
diff --git a/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/parameters/ReceptionHandlerConfigurationParametersJsonAdapter.java b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/parameters/ReceptionHandlerConfigurationParametersJsonAdapter.java
new file mode 100644
index 0000000..0890a2a
--- /dev/null
+++ b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/parameters/ReceptionHandlerConfigurationParametersJsonAdapter.java
@@ -0,0 +1,80 @@
+/*-
+ * ============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=========================================================
+ */
+
+package org.onap.policy.distribution.reception.parameters;
+
+import com.google.gson.JsonDeserializationContext;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonPrimitive;
+import java.lang.reflect.Type;
+import org.slf4j.ext.XLogger;
+import org.slf4j.ext.XLoggerFactory;
+
+/**
+ * This class deserialises reception handler parameters from JSON.
+ */
+public class ReceptionHandlerConfigurationParametersJsonAdapter
+        implements JsonDeserializer<ReceptionHandlerConfigurationParameterGroup> {
+    private static final XLogger LOGGER =
+            XLoggerFactory.getXLogger(ReceptionHandlerConfigurationParametersJsonAdapter.class);
+
+    private static final String PARAMETER_CLASS_NAME = "parameterClassName";
+    private static final String RECEPTION_HANDLER_PARAMETERS = "parameters";
+
+    @Override
+    public ReceptionHandlerConfigurationParameterGroup deserialize(final JsonElement json, final Type typeOfT,
+            final JsonDeserializationContext context) {
+        final JsonObject jsonObject = json.getAsJsonObject();
+
+        final String receptionHandlerParameterClassName = getParameterGroupClassName(jsonObject);
+        Class<?> receptionHandlerParameterClass = getParameterGroupClass(receptionHandlerParameterClassName);
+
+        return context.deserialize(jsonObject.get(RECEPTION_HANDLER_PARAMETERS), receptionHandlerParameterClass);
+    }
+
+    private String getParameterGroupClassName(final JsonObject jsonObject) {
+        final JsonPrimitive classNameJsonPrimitive = ((JsonPrimitive) jsonObject.get(PARAMETER_CLASS_NAME));
+
+        if (classNameJsonPrimitive == null || classNameJsonPrimitive.getAsString().length() == 0) {
+            final String errorMessage = "parameter \"" + PARAMETER_CLASS_NAME + "\" value \""
+                    + (classNameJsonPrimitive != null ? classNameJsonPrimitive.getAsString() : "null")
+                    + "\" invalid in JSON file";
+            LOGGER.warn(errorMessage);
+            throw new IllegalArgumentException(errorMessage);
+        }
+        return classNameJsonPrimitive.getAsString().replaceAll("\\s+", "");
+    }
+
+    private Class<?> getParameterGroupClass(final String receptionHAndlerParameterClassName) {
+        Class<?> receptionHandlerParameterClass = null;
+        try {
+            receptionHandlerParameterClass = Class.forName(receptionHAndlerParameterClassName);
+        } catch (final ClassNotFoundException e) {
+            final String errorMessage = "parameter \"" + PARAMETER_CLASS_NAME + "\" value \""
+                    + receptionHAndlerParameterClassName + "\", could not find class";
+            LOGGER.warn(errorMessage, e);
+            throw new IllegalArgumentException(errorMessage, e);
+        }
+        return receptionHandlerParameterClass;
+    }
+
+}
diff --git a/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/parameters/ReceptionHandlerParameters.java b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/parameters/ReceptionHandlerParameters.java
new file mode 100644
index 0000000..3839c44
--- /dev/null
+++ b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/parameters/ReceptionHandlerParameters.java
@@ -0,0 +1,147 @@
+/*-
+ * ============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=========================================================
+ */
+
+package org.onap.policy.distribution.reception.parameters;
+
+import org.onap.policy.common.logging.flexlogger.FlexLogger;
+import org.onap.policy.common.logging.flexlogger.Logger;
+import org.onap.policy.common.parameters.GroupValidationResult;
+import org.onap.policy.common.parameters.ParameterGroup;
+import org.onap.policy.common.parameters.ValidationStatus;
+
+/**
+ * Class to hold all the reception handler parameters.
+ *
+ * @author Ram Krishna Verma (ram.krishna.verma@ericsson.com)
+ */
+public class ReceptionHandlerParameters implements ParameterGroup {
+
+    private static final Logger LOGGER = FlexLogger.getLogger(ReceptionHandlerParameters.class);
+
+    private String name;
+    private String receptionHandlerType;
+    private String receptionHandlerClassName;
+    private String receptionHandlerConfigurationName;
+    private PluginHandlerParameters pluginHandlerParameters;
+
+    /**
+     * Constructor for instantiating ReceptionHandlerParameters.
+     *
+     * @param receptionHandlerType the reception handler type
+     * @param receptionHandlerClassName the reception handler class name
+     * @param receptionHandlerConfigurationName the name of the configuration for the reception
+     *        handler
+     * @param pluginHandlerParameters the plugin handler parameters
+     */
+    public ReceptionHandlerParameters(final String receptionHandlerType, final String receptionHandlerClassName,
+            final String receptionHandlerConfigurationName, final PluginHandlerParameters pluginHandlerParameters) {
+        this.receptionHandlerType = receptionHandlerType;
+        this.receptionHandlerClassName = receptionHandlerClassName;
+        this.receptionHandlerConfigurationName = receptionHandlerConfigurationName;
+        this.pluginHandlerParameters = pluginHandlerParameters;
+    }
+
+    /**
+     * Return the receptionHandlerType of this ReceptionHandlerParameters instance.
+     *
+     * @return the receptionHandlerType
+     */
+    public String getReceptionHandlerType() {
+        return receptionHandlerType;
+    }
+
+    /**
+     * Return the receptionHandlerClassName of this ReceptionHandlerParameters instance.
+     *
+     * @return the receptionHandlerClassName
+     */
+    public String getReceptionHandlerClassName() {
+        return receptionHandlerClassName;
+    }
+
+    /**
+     * Return the name of the reception handler configuration for this ReceptionHandlerParameters
+     * instance.
+     *
+     * @return the PssdConfigurationParametersGroup
+     */
+    public String getReceptionHandlerConfigurationName() {
+        return receptionHandlerConfigurationName;
+    }
+
+    /**
+     * Return the pluginHandlerParameters of this ReceptionHandlerParameters instance.
+     *
+     * @return the pluginHandlerParameters
+     */
+    public PluginHandlerParameters getPluginHandlerParameters() {
+        return pluginHandlerParameters;
+    }
+
+    @Override
+    public String getName() {
+        return name + "_" + receptionHandlerType;
+    }
+
+    /**
+     * Validate the reception handler parameters.
+     *
+     */
+    @Override
+    public GroupValidationResult validate() {
+        final GroupValidationResult validationResult = new GroupValidationResult(this);
+        if (receptionHandlerType == null || receptionHandlerType.trim().length() == 0) {
+            validationResult.setResult("receptionHandlerType", ValidationStatus.INVALID, "must be a non-blank string");
+        }
+        if (receptionHandlerClassName == null || receptionHandlerClassName.trim().length() == 0) {
+            validationResult.setResult("receptionHandlerClassName", ValidationStatus.INVALID,
+                    "must be a non-blank string containing full class name of the reception handler");
+        } else {
+            validateReceptionHandlerClass(validationResult);
+        }
+        if (pluginHandlerParameters == null) {
+            validationResult.setResult("pluginHandlerParameters", ValidationStatus.INVALID,
+                    "must have a plugin handler");
+        } else {
+            validationResult.setResult("pluginHandlerParameters", pluginHandlerParameters.validate());
+        }
+        return validationResult;
+    }
+
+    private void validateReceptionHandlerClass(final GroupValidationResult validationResult) {
+        try {
+            Class.forName(receptionHandlerClassName);
+        } catch (final ClassNotFoundException exp) {
+            LOGGER.error("reception handler class not found in classpath", exp);
+            validationResult.setResult("receptionHandlerClassName", ValidationStatus.INVALID,
+                    "reception handler class not found in classpath");
+        }
+    }
+
+    /**
+     * Set the name of this group.
+     *
+     * @param name the name to set
+     */
+    @Override
+    public void setName(final String name) {
+        this.name = name;
+    }
+}
diff --git a/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/statistics/DistributionStatisticsManager.java b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/statistics/DistributionStatisticsManager.java
new file mode 100644
index 0000000..3b66ee1
--- /dev/null
+++ b/artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/statistics/DistributionStatisticsManager.java
@@ -0,0 +1,160 @@
+/*-
+ * ============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=========================================================
+ */
+
+package org.onap.policy.distribution.reception.statistics;
+
+/**
+ * Class to hold statistical data for distribution component.
+ *
+ * @author Ram Krishna Verma (ram.krishna.verma@ericsson.com)
+ */
+public class DistributionStatisticsManager {
+
+    private static long totalDistributionCount;
+    private static long distributionSuccessCount;
+    private static long distributionFailureCount;
+    private static long totalDownloadCount;
+    private static long downloadSuccessCount;
+    private static long downloadFailureCount;
+
+    private DistributionStatisticsManager() {
+        throw new IllegalStateException("Instantiation of the class is not allowed");
+    }
+
+    /**
+     * Method to update the total distribution count.
+     *
+     * @return the updated value of totalDistributionCount
+     */
+    public static long updateTotalDistributionCount() {
+        return ++totalDistributionCount;
+    }
+
+    /**
+     * Method to update the distribution success count.
+     *
+     * @return the updated value of distributionSuccessCount
+     */
+    public static long updateDistributionSuccessCount() {
+        return ++distributionSuccessCount;
+    }
+
+    /**
+     * Method to update the distribution failure count.
+     *
+     * @return the updated value of distributionFailureCount
+     */
+    public static long updateDistributionFailureCount() {
+        return ++distributionFailureCount;
+    }
+
+    /**
+     * Method to update the total download count.
+     *
+     * @return the updated value of totalDownloadCount
+     */
+    public static long updateTotalDownloadCount() {
+        return ++totalDownloadCount;
+    }
+
+    /**
+     * Method to update the download success count.
+     *
+     * @return the updated value of downloadSuccessCount
+     */
+    public static long updateDownloadSuccessCount() {
+        return ++downloadSuccessCount;
+    }
+
+    /**
+     * Method to update the download failure count.
+     *
+     * @return the updated value of downloadFailureCount
+     */
+    public static long updateDownloadFailureCount() {
+        return ++downloadFailureCount;
+    }
+
+    /**
+     * Returns the current value of totalDistributionCount.
+     *
+     * @return the totalDistributionCount
+     */
+    public static long getTotalDistributionCount() {
+        return totalDistributionCount;
+    }
+
+    /**
+     * Returns the current value of distributionSuccessCount.
+     *
+     * @return the distributionSuccessCount
+     */
+    public static long getDistributionSuccessCount() {
+        return distributionSuccessCount;
+    }
+
+    /**
+     * Returns the current value of distributionFailureCount.
+     *
+     * @return the distributionFailureCount
+     */
+    public static long getDistributionFailureCount() {
+        return distributionFailureCount;
+    }
+
+    /**
+     * Returns the current value of totalDownloadCount.
+     *
+     * @return the totalDownloadCount
+     */
+    public static long getTotalDownloadCount() {
+        return totalDownloadCount;
+    }
+
+    /**
+     * Returns the current value of downloadSuccessCount.
+     *
+     * @return the downloadSuccessCount
+     */
+    public static long getDownloadSuccessCount() {
+        return downloadSuccessCount;
+    }
+
+    /**
+     * Returns the current value of downloadFailureCount.
+     *
+     * @return the downloadFailureCount
+     */
+    public static long getDownloadFailureCount() {
+        return downloadFailureCount;
+    }
+
+    /**
+     * Reset all the statistics counts to 0.
+     */
+    public static void resetAllStatistics() {
+        totalDistributionCount = 0L;
+        distributionSuccessCount = 0L;
+        distributionFailureCount = 0L;
+        totalDownloadCount = 0L;
+        downloadSuccessCount = 0L;
+        downloadFailureCount = 0L;
+    }
+}