SwingBrowseListener.java   [plain text]


/* -*- Mode: Java; tab-width: 4 -*-
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 * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
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import javax.swing.*;
import com.apple.dnssd.*;


/**	Use this to schedule BrowseListener callbacks via SwingUtilities.invokeAndWait(). */

public class SwingBrowseListener implements Runnable, BrowseListener
{
	/** Create a listener for DNSSD that will call your listener on the Swing/AWT event thread. */
	public	SwingBrowseListener( BrowseListener listener)
	{ fListener = listener; fErrorCode = 0; }

	/** (Clients should not call this method directly.) */
	public void	operationFailed( DNSSDService service, int errorCode)
	{
		fBrowser = service;
		fErrorCode = errorCode;
		this.schedule();
	}

	/** (Clients should not call this method directly.) */
	public void	serviceFound( DNSSDService browser, int flags, int ifIndex, 
							String serviceName, String regType, String domain)

	{
		fBrowser = browser;
		fIsAdd = true;
		fFlags = flags;
		fIndex = ifIndex;
		fService = serviceName;
		fRegType = regType;
		fDomain = domain;
		this.schedule();
	}

	/** (Clients should not call this method directly.) */
	public void	serviceLost( DNSSDService browser, int flags, int ifIndex,
							String serviceName, String regType, String domain)
	{
		fBrowser = browser;
		fIsAdd = false;
		fFlags = flags;
		fIndex = ifIndex;
		fService = serviceName;
		fRegType = regType;
		fDomain = domain;
		this.schedule();
	}

	/** (Clients should not call this method directly.) */
	public void		run()
	{
		if ( fErrorCode != 0)
			fListener.operationFailed( fBrowser, fErrorCode);
		else if ( fIsAdd)
			fListener.serviceFound( fBrowser, fFlags, fIndex, fService, fRegType, fDomain);
		else
			fListener.serviceLost( fBrowser, fFlags, fIndex, fService, fRegType, fDomain);
	}

	protected void	schedule()
	{		
		try {
			SwingUtilities.invokeAndWait( this);
		}
		catch ( Exception e)
		{
			e.printStackTrace();
		}
	}

	protected BrowseListener	fListener;

	protected boolean			fIsAdd;
	protected DNSSDService		fBrowser;
	protected int				fFlags;
	protected int				fIndex;
	protected int				fErrorCode;
	protected String			fService;
	protected String			fRegType;
	protected String			fDomain;
}