examples/src/SwingDomainListener.java

	SwingDomainListener.java revision 4b22b9337f359bfd063322244f5336cc7c6ffcfa
/* -*- Mode: Java; tab-width: 4 -*-
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 * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
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ident   "%Z%%M% %I% %E% SMI"

 */


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;
}