2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2016-2018 Ericsson. All rights reserved.
4 * Modifications Copyright (C) 2021 AT&T Intellectual Property. All rights reserved.
5 * ================================================================================
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
18 * SPDX-License-Identifier: Apache-2.0
19 * ============LICENSE_END=========================================================
22 package org.onap.policy.apex.plugins.context.distribution.infinispan;
25 import lombok.AccessLevel;
27 import org.onap.policy.apex.context.ContextException;
28 import org.onap.policy.apex.context.impl.distribution.AbstractDistributor;
29 import org.onap.policy.apex.context.parameters.ContextParameterConstants;
30 import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
31 import org.onap.policy.common.parameters.ParameterService;
32 import org.slf4j.ext.XLogger;
33 import org.slf4j.ext.XLoggerFactory;
36 * This context distributor distributes context across threads in multiple JVMs on multiple hosts. It uses Infinispan to
39 * @author Liam Fallon (liam.fallon@ericsson.com)
41 public class InfinispanContextDistributor extends AbstractDistributor {
42 // Logger for this class
43 private static final XLogger LOGGER = XLoggerFactory.getXLogger(InfinispanContextDistributor.class);
45 // The infinispan manager for distributing context for this JVM
46 @Setter(AccessLevel.PRIVATE)
47 private static InfinispanManager infinispanManager = null;
50 * Create an instance of an Infinispan Context Distributor.
52 * @throws ContextException On errors creating the context distributor
54 public InfinispanContextDistributor() throws ContextException {
55 LOGGER.entry("InfinispanContextDistributor()");
57 LOGGER.exit("InfinispanContextDistributor()");
64 public void init(final AxArtifactKey key) throws ContextException {
65 LOGGER.entry("init(" + key + ")");
69 // Create the infinispan manager if it does not already exist
70 if (infinispanManager == null) {
71 // Get the parameters from the parameter service
72 final InfinispanDistributorParameters parameters = ParameterService
73 .get(ContextParameterConstants.DISTRIBUTOR_GROUP_NAME);
75 LOGGER.debug("initiating Infinispan with the parameters: {}", parameters);
78 setInfinispanManager(new InfinispanManager(parameters));
81 LOGGER.exit("init(" + key + ")");
88 public Map<String, Object> getContextAlbumMap(final AxArtifactKey contextAlbumKey) {
89 LOGGER.info("InfinispanContextDistributor: create album: " + contextAlbumKey.getId());
91 // Get the Cache from Infinispan
92 return infinispanManager.getCacheManager().getCache(contextAlbumKey.getId().replace(':', '_'));
99 public void shutdown() {
100 // Shut down the infinispan manager
101 if (infinispanManager != null) {
102 infinispanManager.shutdown();
104 setInfinispanManager(null);