framework/bundles/org.eclipse.ecf.provider/src/org/eclipse/ecf/provider/generic/SOConnector.java

/****************************************************************************
 * Copyright (c) 2004 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
 *****************************************************************************/

/*
 * Created on Dec 20, 2004
 *  
 */
package org.eclipse.ecf.provider.generic;

import java.util.Enumeration;
import java.util.Hashtable;
import org.eclipse.ecf.core.identity.ID;
import org.eclipse.ecf.core.sharedobject.ISharedObjectConnector;
import org.eclipse.ecf.core.sharedobject.events.ISharedObjectEvent;
import org.eclipse.ecf.core.sharedobject.util.IQueueEnqueue;
import org.eclipse.ecf.core.sharedobject.util.QueueException;

public class SOConnector implements ISharedObjectConnector {
	ID sender;
	Hashtable receiverQueues = null;

	public SOConnector(ID sender, ID[] recv, IQueueEnqueue[] queues) {
		super();
		this.receiverQueues = new Hashtable();
		for (int i = 0; i < recv.length; i++) {
			receiverQueues.put(recv[i], queues[i]);
		}
	}

	protected void fireEvent(ISharedObjectEvent event) throws QueueException {
		for (Enumeration e = receiverQueues.elements(); e.hasMoreElements();) {
			IQueueEnqueue queue = (IQueueEnqueue) e.nextElement();
			queue.enqueue(event);
		}
	}

	protected void fireEvents(ISharedObjectEvent[] event) throws QueueException {
		for (Enumeration e = receiverQueues.elements(); e.hasMoreElements();) {
			IQueueEnqueue queue = (IQueueEnqueue) e.nextElement();
			if (queue != null) {
				queue.enqueue(event);
			}
		}
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ecf.core.ISharedObjectConnector#getSender()
	 */
	public ID getSenderID() {
		return sender;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ecf.core.ISharedObjectConnector#getReceivers()
	 */
	public ID[] getReceiverIDs() {
		return (ID[]) receiverQueues.keySet().toArray(new ID[receiverQueues.size()]);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ecf.core.ISharedObjectConnector#enqueue(org.eclipse.ecf.core.events.ISharedObjectEvent)
	 */
	public void enqueue(ISharedObjectEvent event) throws QueueException {
		fireEvent(event);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ecf.core.ISharedObjectConnector#enqueue(org.eclipse.ecf.core.events.ISharedObjectEvent[])
	 */
	public void enqueue(ISharedObjectEvent[] events) throws QueueException {
		fireEvents(events);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ecf.core.ISharedObjectConnector#dispose()
	 */
	public void dispose() {
		if (receiverQueues != null) {
			receiverQueues.clear();
			receiverQueues = null;
		}
		sender = null;
	}
}