1/* -*- Mode: Java; tab-width: 4 -*-
2 *
3 * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
4 *
5 * Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc.
6 * ("Apple") in consideration of your agreement to the following terms, and your
7 * use, installation, modification or redistribution of this Apple software
8 * constitutes acceptance of these terms.  If you do not agree with these terms,
9 * please do not use, install, modify or redistribute this Apple software.
10 *
11 * In consideration of your agreement to abide by the following terms, and subject
12 * to these terms, Apple grants you a personal, non-exclusive license, under Apple's
13 * copyrights in this original Apple software (the "Apple Software"), to use,
14 * reproduce, modify and redistribute the Apple Software, with or without
15 * modifications, in source and/or binary forms; provided that if you redistribute
16 * the Apple Software in its entirety and without modifications, you must retain
17 * this notice and the following text and disclaimers in all such redistributions of
18 * the Apple Software.  Neither the name, trademarks, service marks or logos of
19 * Apple Computer, Inc. may be used to endorse or promote products derived from the
20 * Apple Software without specific prior written permission from Apple.  Except as
21 * expressly stated in this notice, no other rights or licenses, express or implied,
22 * are granted by Apple herein, including but not limited to any patent rights that
23 * may be infringed by your derivative works or by other works in which the Apple
24 * Software may be incorporated.
25 *
26 * The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO
27 * WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
28 * WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
30 * COMBINATION WITH YOUR PRODUCTS.
31 *
32 * IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
34 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
36 * OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
37 * (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
38 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 */
40
41
42import javax.swing.*;
43import com.apple.dnssd.*;
44
45
46/**	Use this to schedule QueryListener callbacks via SwingUtilities.invokeAndWait(). */
47
48public class SwingQueryListener implements Runnable, QueryListener
49{
50	/** Create a listener for DNSSD that will call your listener on the Swing/AWT event thread. */
51	public	SwingQueryListener( QueryListener listener)
52	{ fListener = listener; }
53
54	public void	operationFailed( DNSSDService service, int errorCode)
55	{
56		fQuery = service;
57		fErrorCode = errorCode;
58		this.schedule();
59	}
60
61	/** (Clients should not call this method directly.) */
62	public void	queryAnswered( DNSSDService query, int flags, int ifIndex, String fullName,
63								int rrtype, int rrclass, byte[] rdata, int ttl)
64	{
65		fQuery = query;
66		fFlags = flags;
67		fIndex = ifIndex;
68		fFullName = fullName;
69		fType = rrtype;
70		fClass = rrclass;
71		fData = rdata;
72		fTTL = ttl;
73		this.schedule();
74	}
75
76	/** (Clients should not call this method directly.) */
77	public void		run()
78	{
79		if ( fErrorCode != 0)
80			fListener.operationFailed( fQuery, fErrorCode);
81		else
82			fListener.queryAnswered( fQuery, fFlags, fIndex, fFullName, fType, fClass, fData, fTTL);
83	}
84
85	protected void	schedule()
86	{
87		try {
88			SwingUtilities.invokeAndWait( this);
89		}
90		catch ( Exception e)
91		{
92			e.printStackTrace();
93		}
94	}
95
96	protected QueryListener		fListener;
97
98	protected DNSSDService		fQuery;
99	protected int				fFlags;
100	protected int				fIndex;
101	protected int				fErrorCode;
102	protected String			fFullName;
103	protected int				fType;
104	protected int				fClass;
105	protected byte[]			fData;
106	protected int				fTTL;
107}
108
109