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 ident "%Z%%M% %I% %E% SMI" 41 42 */ 43 44 45 import javax.swing.*; 46 import com.apple.dnssd.*; 47 48 49 /** Use this to schedule QueryListener callbacks via SwingUtilities.invokeAndWait(). */ 50 51 public class SwingQueryListener implements Runnable, QueryListener 52 { 53 /** Create a listener for DNSSD that will call your listener on the Swing/AWT event thread. */ SwingQueryListener( QueryListener listener)54 public SwingQueryListener( QueryListener listener) 55 { fListener = listener; } 56 operationFailed( DNSSDService service, int errorCode)57 public void operationFailed( DNSSDService service, int errorCode) 58 { 59 fQuery = service; 60 fErrorCode = errorCode; 61 this.schedule(); 62 } 63 64 /** (Clients should not call this method directly.) */ queryAnswered( DNSSDService query, int flags, int ifIndex, String fullName, int rrtype, int rrclass, byte[] rdata, int ttl)65 public void queryAnswered( DNSSDService query, int flags, int ifIndex, String fullName, 66 int rrtype, int rrclass, byte[] rdata, int ttl) 67 { 68 fQuery = query; 69 fFlags = flags; 70 fIndex = ifIndex; 71 fFullName = fullName; 72 fType = rrtype; 73 fClass = rrclass; 74 fData = rdata; 75 fTTL = ttl; 76 this.schedule(); 77 } 78 79 /** (Clients should not call this method directly.) */ run()80 public void run() 81 { 82 if ( fErrorCode != 0) 83 fListener.operationFailed( fQuery, fErrorCode); 84 else 85 fListener.queryAnswered( fQuery, fFlags, fIndex, fFullName, fType, fClass, fData, fTTL); 86 } 87 schedule()88 protected void schedule() 89 { 90 try { 91 SwingUtilities.invokeAndWait( this); 92 } 93 catch ( Exception e) 94 { 95 e.printStackTrace(); 96 } 97 } 98 99 protected QueryListener fListener; 100 101 protected DNSSDService fQuery; 102 protected int fFlags; 103 protected int fIndex; 104 protected int fErrorCode; 105 protected String fFullName; 106 protected int fType; 107 protected int fClass; 108 protected byte[] fData; 109 protected int fTTL; 110 } 111 112