X-Git-Url: https://gerrit.onap.org/r/gitweb?a=blobdiff_plain;f=artifactbroker%2Fmain%2Fsrc%2Fmain%2Fjava%2Forg%2Fonap%2Fpolicy%2Fdistribution%2Fmain%2Fstartstop%2FDistributionActivator.java;fp=artifactbroker%2Fmain%2Fsrc%2Fmain%2Fjava%2Forg%2Fonap%2Fpolicy%2Fdistribution%2Fmain%2Fstartstop%2FDistributionActivator.java;h=2a5dd8859ebc08673938a1015c90ca3df8c02c7a;hb=94d7d990ac85143fd3605c9a094082592d554e2a;hp=0000000000000000000000000000000000000000;hpb=20cc990e09f61a75375b2f39a0b7d9b790f37ccd;p=multicloud%2Fframework.git diff --git a/artifactbroker/main/src/main/java/org/onap/policy/distribution/main/startstop/DistributionActivator.java b/artifactbroker/main/src/main/java/org/onap/policy/distribution/main/startstop/DistributionActivator.java new file mode 100644 index 0000000..2a5dd88 --- /dev/null +++ b/artifactbroker/main/src/main/java/org/onap/policy/distribution/main/startstop/DistributionActivator.java @@ -0,0 +1,153 @@ +/*- + * ============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.main.startstop; + +import java.util.HashMap; +import java.util.Map; +import java.util.Map.Entry; + +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.main.PolicyDistributionException; +import org.onap.policy.distribution.main.parameters.DistributionParameterGroup; +import org.onap.policy.distribution.main.rest.DistributionRestServer; + +/** + * This class wraps a distributor so that it can be activated as a complete service together with all its distribution + * and forwarding handlers. + */ +public class DistributionActivator { + // The logger for this class + private static final Logger LOGGER = FlexLogger.getLogger(DistributionActivator.class); + + // The parameters of this policy distribution activator + private final DistributionParameterGroup distributionParameterGroup; + + // The map of reception handlers initialized by this distribution activator + + private static boolean alive = false; + + private DistributionRestServer restServer; + + /** + * Instantiate the activator for policy distribution as a complete service. + * + * @param distributionParameterGroup the parameters for the distribution service + */ + public DistributionActivator(final DistributionParameterGroup distributionParameterGroup) { + this.distributionParameterGroup = distributionParameterGroup; + } + + /** + * Initialize distribution as a complete service. + * + * @throws PolicyDistributionException on errors in initializing the service + */ + @SuppressWarnings("unchecked") + public void initialize() throws PolicyDistributionException { + LOGGER.debug("Policy distribution starting as a service . . ."); + startDistributionRestServer(); + registerToParameterService(distributionParameterGroup); + DistributionActivator.setAlive(true); + LOGGER.debug("Policy distribution started as a service"); + } + + /** + * Starts the distribution rest server using configuration parameters. + * + * @throws PolicyDistributionException if server start fails + */ + private void startDistributionRestServer() throws PolicyDistributionException { + distributionParameterGroup.getRestServerParameters().setName(distributionParameterGroup.getName()); + restServer = new DistributionRestServer(distributionParameterGroup.getRestServerParameters()); + if (!restServer.start()) { + throw new PolicyDistributionException( + "Failed to start distribution rest server. Check log for more details..."); + } + } + + /** + * Terminate policy distribution. + * + * @throws PolicyDistributionException on termination errors + */ + public void terminate() throws PolicyDistributionException { + try { + deregisterToParameterService(distributionParameterGroup); + DistributionActivator.setAlive(false); + + // Stop the distribution rest server + restServer.stop(); + } catch (final Exception exp) { + LOGGER.error("Policy distribution service termination failed", exp); + throw new PolicyDistributionException(exp.getMessage(), exp); + } + } + + /** + * Get the parameters used by the activator. + * + * @return the parameters of the activator + */ + public DistributionParameterGroup getParameterGroup() { + return distributionParameterGroup; + } + + /** + * Method to register the parameters to Common Parameter Service. + * + * @param distributionParameterGroup the distribution parameter group + */ + public void registerToParameterService(final DistributionParameterGroup distributionParameterGroup) { + ParameterService.register(distributionParameterGroup); + //@formatter:off + //@formatter:on + } + + /** + * Method to deregister the parameters from Common Parameter Service. + * + * @param distributionParameterGroup the distribution parameter group + */ + public void deregisterToParameterService(final DistributionParameterGroup distributionParameterGroup) { + ParameterService.deregister(distributionParameterGroup.getName()); + //@formatter:on + } + + /** + * Returns the alive status of distribution service. + * + * @return the alive + */ + public static boolean isAlive() { + return alive; + } + + /** + * Change the alive status of distribution service. + * + * @param status the status + */ + public static void setAlive(final boolean status) { + alive = status; + } +}