/****************************************************************************
* Copyright (c) 2007 Composent, Inc. and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Composent, Inc. - initial API and implementation
*****************************************************************************/
package org.eclipse.ecf.tests.sharedobject;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.core.runtime.Assert;
import org.eclipse.ecf.core.identity.ID;
import org.eclipse.ecf.core.sharedobject.BaseSharedObject;
import org.eclipse.ecf.core.sharedobject.ReplicaSharedObjectDescription;
import org.eclipse.ecf.core.sharedobject.SharedObjectInitException;
import org.eclipse.ecf.core.sharedobject.SharedObjectMsg;
import org.eclipse.ecf.core.sharedobject.events.ISharedObjectActivatedEvent;
import org.eclipse.ecf.core.util.Event;
import org.eclipse.ecf.core.util.IEventProcessor;
/**
*
*/
public class TestMessagingSharedObject extends BaseSharedObject implements IMessageSender {
public static final String NAME_PROPERTY = "name";
String name;
IMessageReceiver messageReceiver;
/**
* Primary constructor
* @param name the name to say hello to
*/
public TestMessagingSharedObject(String name, IMessageReceiver receiver) {
this.name = name;
Assert.isNotNull(name);
this.messageReceiver = receiver;
}
/**
* Replica constructor (null constructor)
*/
public TestMessagingSharedObject() {
super();
}
/* (non-Javadoc)
* @see org.eclipse.ecf.core.sharedobject.BaseSharedObject#initialize()
*/
protected void initialize() throws SharedObjectInitException {
super.initialize();
if (isPrimary()) {
// If primary, then add an event processor that handles activated
// event by replicating to all current remote containers
addEventProcessor(new IEventProcessor() {
public boolean processEvent(Event event) {
if (event instanceof ISharedObjectActivatedEvent) {
ISharedObjectActivatedEvent ae = (ISharedObjectActivatedEvent) event;
if (ae.getActivatedID().equals(getID()) && isConnected()) {
TestMessagingSharedObject.this.replicateToRemoteContainers(null);
}
}
return false;
}
});
System.out.println("Primary(" + getContext().getLocalContainerID() + ") says Hello " + name);
} else {
// This is a replica, so initialize the name from property
name = (String) getConfig().getProperties().get(NAME_PROPERTY);
System.out.println("Replica(" + getContext().getLocalContainerID() + ") says Hello " + name);
}
}
/* (non-Javadoc)
* @see org.eclipse.ecf.core.sharedobject.BaseSharedObject#getReplicaDescription(org.eclipse.ecf.core.identity.ID)
*/
protected ReplicaSharedObjectDescription getReplicaDescription(ID receiver) {
// Put primary state into properties and include in replica description
final Map properties = new HashMap();
properties.put(NAME_PROPERTY, name);
return new ReplicaSharedObjectDescription(this.getClass(), getConfig().getSharedObjectID(), getConfig().getHomeContainerID(), properties);
}
protected void handleMessage(ID fromID, String message) {
if (messageReceiver != null) messageReceiver.handleMessage(fromID, message);
else System.out.println(name+" says "+message);
}
protected boolean handleSharedObjectMsg(SharedObjectMsg msg) {
try {
msg.invoke(this);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return true;
}
public void sendMessage(ID targetId, Object message) throws IOException {
sendSharedObjectMsgTo(null, SharedObjectMsg.createMsg(this.getClass().getName(),"handleMessage", new Object[] { getLocalContainerID(), message }));
}
}