/**
* EasyBeans
* Copyright (C) 2008 Bull S.A.S.
* Contact: easybeans@ow2.org
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* --------------------------------------------------------------------------
* $Id: ClientClusterAN.java 5369 2010-02-24 14:58:19Z benoitf $
* --------------------------------------------------------------------------
*/
package org.ow2.easybeans.examples.cluster;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import org.ow2.cmi.rpc.CMIProxy;
/**
* Simple client of the stateless which clustering infos are built from
* annotations.
* @author Benoit Pelletier
* @author eyindanga
*/
public final class ClientClusterAN {
/**
* Default InitialContextFactory to use.
*/
private static final String DEFAULT_INITIAL_CONTEXT_FACTORY = "org.objectweb.carol.jndi.spi.MultiOrbInitialContextFactory";
private static long pid = System.currentTimeMillis() % 100;
/**
* Utility class.
*/
private ClientClusterAN() {
}
/**
* Main method.
* @param args the arguments (not required)
* @throws Exception if exception is found.
*/
public static void main(final String[] args) throws Exception {
int i = 0;
String msg = null;
SimpleDateFormat dateFormat = new SimpleDateFormat("yyMMddHHmmss");
Context initialContext = getInitialContext();
boolean clusteringEnabled = false;
ClusterRemote statelessBean = (ClusterRemote) initialContext.lookup("org.ow2.easybeans.examples.cluster.ClusterBeanAN"
+ "_" + ClusterRemote.class.getName() + "@Remote");
if (statelessBean instanceof CMIProxy) {
clusteringEnabled = true;
System.out.println("Clustering is enabled.");
}
while (i < Utils.LOOP_NUMBER) {
i++;
msg = "Request[T=" + pid + ", HD=" + dateFormat.format(new Date()) + ", S=" + i + "]";
if (clusteringEnabled) {
System.out.println("The stub used for the next request is:\n"
+ ((CMIProxy) statelessBean).getCurrentCMIRef_CMI());
}
// invoke the EJB
String ezbServerDescription = statelessBean.getEZBServerDescription(msg);
System.out.println(msg + " -> " + ezbServerDescription);
Thread.sleep(Utils.PAUSE_TIME);
}
}
/**
* @return Returns the InitialContext.
* @throws NamingException If the Context cannot be created.
*/
private static Context getInitialContext() throws NamingException {
// if user don't use jclient/client container
// we can specify the InitialContextFactory to use
// But this is *not recommended*.
Hashtable<String, Object> env = new Hashtable<String, Object>();
env.put(Context.INITIAL_CONTEXT_FACTORY, getInitialContextFactory());
// Usually a simple new InitialContext() without any parameters is sufficent.
// return new InitialContext();
return new InitialContext(env);
}
/**
* Returns a configurable InitialContextFactory classname.<br/>
* Can be configured with the <code>easybeans.client.initial-context-factory</code> System property.
* @return Returns a configurable InitialContextFactory classname.
*/
private static String getInitialContextFactory() {
String prop = System.getProperty("easybeans.client.initial-context-factory");
// If not found, use the default
if (prop == null) {
prop = DEFAULT_INITIAL_CONTEXT_FACTORY;
}
return prop;
}
}