2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2016-2018 Ericsson. All rights reserved.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.policy.apex.plugins.context.distribution.infinispan;
25 import org.infinispan.Cache;
26 import org.onap.policy.apex.context.ContextException;
27 import org.onap.policy.apex.context.impl.distribution.AbstractDistributor;
28 import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
29 import org.onap.policy.apex.model.basicmodel.service.ParameterService;
30 import org.slf4j.ext.XLogger;
31 import org.slf4j.ext.XLoggerFactory;
34 * This context distributor distributes context across threads in multiple JVMs on multiple hosts.
35 * It uses Infinispan to distribute maps.
37 * @author Liam Fallon (liam.fallon@ericsson.com)
39 public class InfinispanContextDistributor extends AbstractDistributor {
40 // Logger for this class
41 private static final XLogger LOGGER = XLoggerFactory.getXLogger(InfinispanContextDistributor.class);
43 // The infinispan manager for distributing context for this JVM
44 private static InfinispanManager infinispanManager = null;
47 * Create an instance of an Infinispan Context Distributor.
49 * @throws ContextException On errors creating the context distributor
51 public InfinispanContextDistributor() throws ContextException {
52 LOGGER.entry("InfinispanContextDistributor()");
54 LOGGER.exit("InfinispanContextDistributor()");
61 * com.ericsson.apex.context.impl.distribution.AbstractContextDistributor#init(com.ericsson.apex
62 * .model.basicmodel.concepts.AxArtifactKey)
65 public void init(final AxArtifactKey key) throws ContextException {
66 LOGGER.entry("init(" + key + ")");
70 // Create the infinispan manager if it does not already exist
71 if (infinispanManager == null) {
72 // Get the parameters from the parameter service
73 final InfinispanDistributorParameters parameters =
74 ParameterService.getParameters(InfinispanDistributorParameters.class);
76 LOGGER.debug("initiating Infinispan with the parameters: " + parameters);
79 infinispanManager = new InfinispanManager(parameters);
82 LOGGER.exit("init(" + key + ")");
88 * @see com.ericsson.apex.core.context.impl.distribution.AbstractContextDistributor#
89 * getContextAlbumMap(com.ericsson.apex.core.model.concepts.AxArtifactKey)
92 public Map<String, Object> getContextAlbumMap(final AxArtifactKey contextAlbumKey) {
93 LOGGER.info("InfinispanContextDistributor: create album: " + contextAlbumKey.getID());
95 // Get the Cache from Infinispan
96 final Cache<String, Object> infinispanCache =
97 infinispanManager.getCacheManager().getCache(contextAlbumKey.getID().replace(':', '_'));
99 return infinispanCache;
105 * @see com.ericsson.apex.core.context.impl.distribution.AbstractContextDistributor#shutdown()
108 public void shutdown() {
109 // Shut down the infinispan manager
110 if (infinispanManager != null) {
111 infinispanManager.shutdown();
113 infinispanManager = null;