SwingDomainListener.java   [plain text]


/* -*- Mode: Java; tab-width: 4 -*-
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import javax.swing.*;
import com.apple.dnssd.*;


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

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

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

	/** (Clients should not call this method directly.) */
	public void		domainFound( DNSSDService domainEnum, int flags, int ifIndex, String domain)

	{
		fEnumerator = domainEnum;
		fIsAdd = true;
		fFlags = flags;
		fIndex = ifIndex;
		fDomain = domain;
		this.schedule();
	}

	/** (Clients should not call this method directly.) */
	public void		domainLost( DNSSDService domainEnum, int flags, int ifIndex, String domain)
	{
		fEnumerator = domainEnum;
		fIsAdd = false;
		fFlags = flags;
		fIndex = ifIndex;
		fDomain = domain;
		this.schedule();
	}

	/** (Clients should not call this method directly.) */
	public void		run()
	{
		if ( fErrorCode != 0)
			fListener.operationFailed( fEnumerator, fErrorCode);
		else if ( fIsAdd)
			fListener.domainFound( fEnumerator, fFlags, fIndex, fDomain);
		else
			fListener.domainLost( fEnumerator, fFlags, fIndex, fDomain);
	}

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

	protected DomainListener	fListener;

	protected boolean			fIsAdd;
	protected DNSSDService		fEnumerator;
	protected int				fFlags;
	protected int				fIndex;
	protected int				fErrorCode;
	protected String			fDomain;
}