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.context.parameters.ContextParameterConstants;
29 import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
30 import org.onap.policy.common.parameters.ParameterService;
31 import org.slf4j.ext.XLogger;
32 import org.slf4j.ext.XLoggerFactory;
35 * This context distributor distributes context across threads in multiple JVMs on multiple hosts.
36 * It uses Infinispan to distribute maps.
38 * @author Liam Fallon (liam.fallon@ericsson.com)
40 public class InfinispanContextDistributor extends AbstractDistributor {
41 // Logger for this class
42 private static final XLogger LOGGER = XLoggerFactory.getXLogger(InfinispanContextDistributor.class);
44 // The infinispan manager for distributing context for this JVM
45 private static InfinispanManager infinispanManager = null;
48 * Create an instance of an Infinispan Context Distributor.
50 * @throws ContextException On errors creating the context distributor
52 public InfinispanContextDistributor() throws ContextException {
53 LOGGER.entry("InfinispanContextDistributor()");
55 LOGGER.exit("InfinispanContextDistributor()");
62 * com.ericsson.apex.context.impl.distribution.AbstractContextDistributor#init(com.ericsson.apex
63 * .model.basicmodel.concepts.AxArtifactKey)
66 public void init(final AxArtifactKey key) throws ContextException {
67 LOGGER.entry("init(" + key + ")");
71 // Create the infinispan manager if it does not already exist
72 if (infinispanManager == null) {
73 // Get the parameters from the parameter service
74 final InfinispanDistributorParameters parameters =
75 ParameterService.get(ContextParameterConstants.DISTRIBUTOR_GROUP_NAME);
77 LOGGER.debug("initiating Infinispan with the parameters: " + parameters);
80 infinispanManager = new InfinispanManager(parameters);
83 LOGGER.exit("init(" + key + ")");
89 * @see com.ericsson.apex.core.context.impl.distribution.AbstractContextDistributor#
90 * getContextAlbumMap(com.ericsson.apex.core.model.concepts.AxArtifactKey)
93 public Map<String, Object> getContextAlbumMap(final AxArtifactKey contextAlbumKey) {
94 LOGGER.info("InfinispanContextDistributor: create album: " + contextAlbumKey.getID());
96 // Get the Cache from Infinispan
97 final Cache<String, Object> infinispanCache =
98 infinispanManager.getCacheManager().getCache(contextAlbumKey.getID().replace(':', '_'));
100 return infinispanCache;
106 * @see com.ericsson.apex.core.context.impl.distribution.AbstractContextDistributor#shutdown()
109 public void shutdown() {
110 // Shut down the infinispan manager
111 if (infinispanManager != null) {
112 infinispanManager.shutdown();
114 infinispanManager = null;