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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2016-2018 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.apex.plugins.context.distribution.infinispan;
import java.io.IOException;
import org.infinispan.manager.DefaultCacheManager;
import org.infinispan.manager.EmbeddedCacheManager;
import org.onap.policy.apex.context.ContextException;
import org.slf4j.ext.XLogger;
import org.slf4j.ext.XLoggerFactory;
/**
* The Class InfinispanManager holds the Infinispan cache manager for a JVM.
*/
public class InfinispanManager {
// Logger for this class
private static final XLogger LOGGER = XLoggerFactory.getXLogger(InfinispanManager.class);
// The Infinispan Cache Manager
private EmbeddedCacheManager cacheManager;
/**
* Constructor, set up an Infinispan cache manager.
*
* @param infinispanDistributorParameters the infinispan distributor parameters
* @throws ContextException On errors connecting to Infinispan
*/
public InfinispanManager(final InfinispanDistributorParameters infinispanDistributorParameters)
throws ContextException {
LOGGER.entry("Creating Infinispan Manager: " + infinispanDistributorParameters);
setSystemProperties(infinispanDistributorParameters);
try {
LOGGER.debug("starting infinispan cache manager using specified configuration . . .");
cacheManager = new DefaultCacheManager(infinispanDistributorParameters.getConfigFile());
LOGGER.debug("started infinispan cache manager using specified configuration");
} catch (final IOException ioException) {
final String errorMessage = "failed to start infinispan cache manager, "
+ "no infinispan configuration found on local file system or in classpath, "
+ "try setting Infinspan \"configFile\" parameter";
LOGGER.error(errorMessage);
throw new ContextException(errorMessage, ioException);
} catch (final Exception e) {
LOGGER.error("failed to start infinispan cache manager using specified configuration", e);
throw new ContextException("failed to start infinispan cache manager using specified configuration", e);
}
// Start the cache manager
cacheManager.start();
Runtime.getRuntime().addShutdownHook(new InfinspanManagerShutdownHook());
LOGGER.exit("Created Infinispan Manager: " + infinispanDistributorParameters);
}
/**
* Shutdown the manager.
*/
public void shutdown() {
if (cacheManager == null) {
return;
}
cacheManager.stop();
cacheManager = null;
}
/**
* Get the cache manager.
*
* @return the infinispan cache manager
*/
public EmbeddedCacheManager getCacheManager() {
return cacheManager;
}
/**
* Set system properties used by Infinispan.
*
* @param infinispanDistributorParameters The parameter values to set are passed as properties
*/
private void setSystemProperties(final InfinispanDistributorParameters infinispanDistributorParameters) {
System.setProperty("java.net.preferIPv4Stack",
Boolean.toString(infinispanDistributorParameters.preferIPv4Stack()));
System.setProperty("jgroups.bind_addr", infinispanDistributorParameters.getjGroupsBindAddress());
}
/**
* Private class to implement the shutdown hook for this infinispan manager.
*/
public class InfinspanManagerShutdownHook extends Thread {
/**
* {@inheritDoc}.
*/
@Override
public void run() {
shutdown();
}
}
}
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