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Diffstat (limited to 'artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/handling/AbstractReceptionHandler.java')
-rw-r--r-- | artifactbroker/reception/src/main/java/org/onap/policy/distribution/reception/handling/AbstractReceptionHandler.java | 89 |
1 files changed, 89 insertions, 0 deletions
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); + } + } + } + + +} |