DsClient2.java

/*******************************************************************************
 * Copyright (c) 2004 Composent, Inc. 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.tutorial.datashare;

import java.util.HashMap;

import org.eclipse.ecf.core.ContainerFactory;
import org.eclipse.ecf.core.IContainer;
import org.eclipse.ecf.core.identity.ID;
import org.eclipse.ecf.core.identity.IDFactory;
import org.eclipse.ecf.core.util.ECFException;
import org.eclipse.ecf.datashare.BaseChannelConfig;
import org.eclipse.ecf.datashare.IChannel;
import org.eclipse.ecf.datashare.IChannelConfig;
import org.eclipse.ecf.datashare.IChannelContainerAdapter;
import org.eclipse.ecf.datashare.IChannelListener;
import org.eclipse.ecf.datashare.events.IChannelEvent;
import org.eclipse.ecf.datashare.events.IChannelMessageEvent;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.widgets.Display;

public class DsClient2 {
	protected static final String CONTAINER_TYPE = "ecf.generic.channel";
	protected static final String TARGET_SERVER = "ecftcp://localhost:3282/server";
	IContainer container = null;
	IChannel channel = null;
	
	protected IChannel createChannel(IContainer container) throws ECFException {
		// Get IChannelContainerAdapter adapter
		IChannelContainerAdapter channelContainer = (IChannelContainerAdapter) container
				.getAdapter(IChannelContainerAdapter.class);
		// Check it's valid, throw if not
		if (channelContainer == null)
			throw new NullPointerException(
					"cannot get channel container adapter");
		// Create channel ID with fixed name 'channel2'
		final ID channelID = IDFactory.getDefault().createID(
				channelContainer.getChannelNamespace(), "channel2");
		// Setup listener so then when channelmessageevents are received that
		// they present in UI
		final IChannelListener channelListener = new IChannelListener() {
			public void handleChannelEvent(final IChannelEvent event) {
				if (event instanceof IChannelMessageEvent) {
					IChannelMessageEvent msg = (IChannelMessageEvent) event;
					showMessageInUI(new String(msg.getData()));
				} else System.out.println("got channel event " + event);
			}
		};
		// Create channel config information
		IChannelConfig config = new BaseChannelConfig(channelID,
						channelListener, new HashMap());
		// Create and return new channel
		return channelContainer.createChannel(config);
	}
	
	protected void showMessageInUI(final String message) {
		Display.getDefault().asyncExec(new Runnable() {
			public void run() {
				Display.getCurrent().beep();
				MessageDialog.openInformation(null, "channel message", message);
			}
		});
	}
	public void createAndConnect() throws ECFException {
		// create container instance from ECF ContainerFactory
		container = ContainerFactory.getDefault().createContainer(
				CONTAINER_TYPE);
		// create channel
		channel = createChannel(container);
		// create target ID
		// connect container to target
		container.connect(IDFactory.getDefault().createID(
				container.getConnectNamespace(), TARGET_SERVER), null);
	}
}