Clients/Java/SwingDomainListener.java

   1 /*
   2  * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc.
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   8  * please do not use, install, modify or redistribute this Apple software.
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  10  * In consideration of your agreement to abide by the following terms, and subject
  11  * to these terms, Apple grants you a personal, non-exclusive license, under Apple's
  12  * copyrights in this original Apple software (the "Apple Software"), to use,
  13  * reproduce, modify and redistribute the Apple Software, with or without
  14  * modifications, in source and/or binary forms; provided that if you redistribute
  15  * the Apple Software in its entirety and without modifications, you must retain
  16  * this notice and the following text and disclaimers in all such redistributions of
  17  * the Apple Software.  Neither the name, trademarks, service marks or logos of
  18  * Apple Computer, Inc. may be used to endorse or promote products derived from the
  19  * Apple Software without specific prior written permission from Apple.  Except as
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  21  * are granted by Apple herein, including but not limited to any patent rights that
  22  * may be infringed by your derivative works or by other works in which the Apple
  23  * Software may be incorporated.
  24  *
  25  * The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO
  26  * WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
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  34  * ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
  35  * OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
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  38  */
  39
  40
  41 import javax.swing.*;
  42 import com.apple.dnssd.*;
  43
  44
  45 /**     Use this to schedule DomainListener callbacks via SwingUtilities.invokeAndWait(). */
  46
  47 public class SwingDomainListener implements Runnable, DomainListener
  48 {
  49         /** Create a listener for DNSSD that will call your listener on the Swing/AWT event thread. */
  50         public  SwingDomainListener( DomainListener listener)
  51         { fListener = listener; fErrorCode = 0; }
  52
  53         /** (Clients should not call this method directly.) */
  54         public void     operationFailed( DNSSDService service, int errorCode)
  55         {
  56                 fEnumerator = service;
  57                 fErrorCode = errorCode;
  58                 this.schedule();
  59         }
  60
  61         /** (Clients should not call this method directly.) */
  62         public void             domainFound( DNSSDService domainEnum, int flags, int ifIndex, String domain)
  63
  64         {
  65                 fEnumerator = domainEnum;
  66                 fIsAdd = true;
  67                 fFlags = flags;
  68                 fIndex = ifIndex;
  69                 fDomain = domain;
  70                 this.schedule();
  71         }
  72
  73         /** (Clients should not call this method directly.) */
  74         public void             domainLost( DNSSDService domainEnum, int flags, int ifIndex, String domain)
  75         {
  76                 fEnumerator = domainEnum;
  77                 fIsAdd = false;
  78                 fFlags = flags;
  79                 fIndex = ifIndex;
  80                 fDomain = domain;
  81                 this.schedule();
  82         }
  83
  84         /** (Clients should not call this method directly.) */
  85         public void             run()
  86         {
  87                 if ( fErrorCode != 0)
  88                         fListener.operationFailed( fEnumerator, fErrorCode);
  89                 else if ( fIsAdd)
  90                         fListener.domainFound( fEnumerator, fFlags, fIndex, fDomain);
  91                 else
  92                         fListener.domainLost( fEnumerator, fFlags, fIndex, fDomain);
  93         }
  94
  95         protected void  schedule()
  96         {
  97                 try {
  98                         SwingUtilities.invokeAndWait( this);
  99                 }
 100                 catch ( Exception e)
 101                 {
 102                         e.printStackTrace();
 103                 }
 104         }
 105
 106         protected DomainListener        fListener;
 107
 108         protected boolean                       fIsAdd;
 109         protected DNSSDService          fEnumerator;
 110         protected int                           fFlags;
 111         protected int                           fIndex;
 112         protected int                           fErrorCode;
 113         protected String                        fDomain;
 114 }
 115