net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory Maven / Gradle / Ivy
/**
* Copyright 2003-2010 Terracotta, Inc.
*
* 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.
*/
package net.sf.ehcache.distribution;
import net.sf.ehcache.CacheException;
import net.sf.ehcache.CacheManager;
import net.sf.ehcache.util.PropertyUtil;
import java.net.UnknownHostException;
import java.util.Properties;
/**
* Builds a listener based on RMI.
*
* Expected configuration line:
*
*
* <cachePeerListenerFactory class="net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory"
* properties="hostName=localhost, port=5000" />
*
*
* @author Greg Luck
* @version $Id: RMICacheManagerPeerListenerFactory.java 2154 2010-04-06 02:45:52Z cdennis $
*/
public class RMICacheManagerPeerListenerFactory extends CacheManagerPeerListenerFactory {
/**
* The default timeout for cache replication for a single replication action.
* This may need to be increased for large data transfers.
*/
public static final Integer DEFAULT_SOCKET_TIMEOUT_MILLIS = Integer.valueOf(120000);
private static final String HOSTNAME = "hostName";
private static final String PORT = "port";
private static final String REMOTE_OBJECT_PORT = "remoteObjectPort";
private static final String SOCKET_TIMEOUT_MILLIS = "socketTimeoutMillis";
/**
* @param properties implementation specific properties. These are configured as comma
* separated name value pairs in ehcache.xml
*/
public final CacheManagerPeerListener createCachePeerListener(CacheManager cacheManager, Properties properties)
throws CacheException {
String hostName = PropertyUtil.extractAndLogProperty(HOSTNAME, properties);
String portString = PropertyUtil.extractAndLogProperty(PORT, properties);
Integer port = null;
if (portString != null && portString.length() != 0) {
port = Integer.valueOf(portString);
} else {
port = Integer.valueOf(0);
}
//0 means any port in UnicastRemoteObject, so it is ok if not specified to make it 0
String remoteObjectPortString = PropertyUtil.extractAndLogProperty(REMOTE_OBJECT_PORT, properties);
Integer remoteObjectPort = null;
if (remoteObjectPortString != null && remoteObjectPortString.length() != 0) {
remoteObjectPort = Integer.valueOf(remoteObjectPortString);
} else {
remoteObjectPort = Integer.valueOf(0);
}
String socketTimeoutMillisString = PropertyUtil.extractAndLogProperty(SOCKET_TIMEOUT_MILLIS, properties);
Integer socketTimeoutMillis;
if (socketTimeoutMillisString == null || socketTimeoutMillisString.length() == 0) {
socketTimeoutMillis = DEFAULT_SOCKET_TIMEOUT_MILLIS;
} else {
socketTimeoutMillis = Integer.valueOf(socketTimeoutMillisString);
}
return doCreateCachePeerListener(hostName, port, remoteObjectPort, cacheManager, socketTimeoutMillis);
}
/**
* A template method to actually create the factory
*
* @param hostName
* @param port
* @param remoteObjectPort
* @param cacheManager
* @param socketTimeoutMillis @return a crate CacheManagerPeerListener
*/
protected CacheManagerPeerListener doCreateCachePeerListener(String hostName,
Integer port,
Integer remoteObjectPort,
CacheManager cacheManager,
Integer socketTimeoutMillis) {
try {
return new RMICacheManagerPeerListener(hostName, port, remoteObjectPort, cacheManager, socketTimeoutMillis);
} catch (UnknownHostException e) {
throw new CacheException("Unable to create CacheManagerPeerListener. Initial cause was " + e.getMessage(), e);
}
}
}