/**
*
* Copyright 2004 Protique Ltd
*
* 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 org.codehaus.activecluster;
import org.codehaus.activecluster.impl.ActiveMQClusterFactory;
import org.codehaus.activecluster.impl.DefaultClusterFactory;
import org.codehaus.activecluster.election.ElectionStrategy;
import org.codehaus.activecluster.election.impl.BullyElectionStrategy;
import javax.jms.JMSException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Map;
/**
* @version $Revision: 1.9 $
*/
public class ClusterDemo {
protected Cluster cluster;
private String name;
private ElectionStrategy electionStrategy;
public static void main(String[] args) {
try {
ClusterDemo test = new ClusterDemo();
if (args.length > 0) {
test.name = args[0];
}
test.demo();
}
catch (JMSException e) {
System.out.println("Caught: " + e);
e.printStackTrace();
Exception c = e.getLinkedException();
if (c != null) {
System.out.println("Cause: " + c);
c.printStackTrace();
}
}
catch (Exception e) {
System.out.println("Caught: " + e);
e.printStackTrace();
}
}
public void demo() throws Exception {
start();
cluster.addClusterListener(new TestingClusterListener(cluster));
System.out.println("Enter 'quit' to terminate");
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
while (true) {
String line = reader.readLine();
if (line == null || line.trim().equalsIgnoreCase("quit")) {
break;
}
else {
Map map = new HashMap();
map.put("text", line);
cluster.getLocalNode().setState(map);
}
}
stop();
}
protected void start() throws JMSException, ClusterException {
cluster = createCluster();
if (name != null) {
System.out.println("Starting node: " + name);
// TODO could we do cluster.setName() ?
Map state = new HashMap();
state.put("name", name);
cluster.getLocalNode().setState(state);
}
cluster.start();
if (electionStrategy == null) {
electionStrategy = new BullyElectionStrategy();
}
electionStrategy.doElection(cluster);
}
protected void stop() throws JMSException {
cluster.stop();
}
protected Cluster createCluster() throws JMSException, ClusterException {
ClusterFactory factory = new ActiveMQClusterFactory();
return factory.createCluster("ORG.CODEHAUS.ACTIVEMQ.TEST.CLUSTER");
}
}