mirror of
https://git.rtems.org/rtems-libbsd/
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mDNS: Import
The sources can be obtained via: http://opensource.apple.com/tarballs/mDNSResponder/mDNSResponder-544.tar.gz
This commit is contained in:
Sebastian Huber
420
mDNSResponder/Clients/Java/BrowserApp.java
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420
mDNSResponder/Clients/Java/BrowserApp.java
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/* -*- Mode: Java; tab-width: 4 -*-
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*
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* Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
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*
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* Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
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* ("Apple") in consideration of your agreement to the following terms, and your
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* use, installation, modification or redistribution of this Apple software
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* constitutes acceptance of these terms. If you do not agree with these terms,
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* please do not use, install, modify or redistribute this Apple software.
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*
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* In consideration of your agreement to abide by the following terms, and subject
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* to these terms, Apple grants you a personal, non-exclusive license, under Apple's
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* copyrights in this original Apple software (the "Apple Software"), to use,
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* reproduce, modify and redistribute the Apple Software, with or without
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* modifications, in source and/or binary forms; provided that if you redistribute
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* the Apple Software in its entirety and without modifications, you must retain
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* this notice and the following text and disclaimers in all such redistributions of
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* the Apple Software. Neither the name, trademarks, service marks or logos of
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* Apple Computer, Inc. may be used to endorse or promote products derived from the
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* Apple Software without specific prior written permission from Apple. Except as
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* expressly stated in this notice, no other rights or licenses, express or implied,
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* are granted by Apple herein, including but not limited to any patent rights that
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* may be infringed by your derivative works or by other works in which the Apple
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* Software may be incorporated.
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*
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* The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
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* WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
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* WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
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* COMBINATION WITH YOUR PRODUCTS.
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*
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* IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
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* OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
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* (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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BrowserApp demonstrates how to use DNS-SD to browse for and resolve services.
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To do:
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- display resolved TXTRecord
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*/
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import java.awt.*;
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import java.awt.event.*;
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import java.util.*;
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import java.text.*;
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import javax.swing.*;
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import javax.swing.event.*;
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import com.apple.dnssd.*;
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class BrowserApp implements ListSelectionListener, ResolveListener, Runnable
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{
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static BrowserApp app;
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JFrame frame;
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DomainListModel domainList;
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BrowserListModel servicesList, serviceList;
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JList domainPane, servicesPane, servicePane;
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DNSSDService servicesBrowser, serviceBrowser, domainBrowser;
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JLabel hostLabel, portLabel;
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String hostNameForUpdate;
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int portForUpdate;
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public BrowserApp()
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{
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frame = new JFrame("DNS-SD Service Browser");
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frame.addWindowListener(new WindowAdapter() {
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public void windowClosing(WindowEvent e) {System.exit(0);}
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});
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domainList = new DomainListModel();
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servicesList = new ServicesBrowserListModel();
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serviceList = new BrowserListModel();
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try {
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domainBrowser = DNSSD.enumerateDomains( DNSSD.BROWSE_DOMAINS, 0, domainList);
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servicesBrowser = DNSSD.browse( 0, 0, "_services._dns-sd._udp.", "", servicesList);
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serviceBrowser = null;
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}
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catch ( Exception ex) { terminateWithException( ex); }
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this.setupSubPanes( frame.getContentPane());
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frame.pack();
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frame.setVisible(true);
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}
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protected void setupSubPanes( Container parent)
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{
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parent.setLayout( new BoxLayout( parent, BoxLayout.Y_AXIS));
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JPanel browserRow = new JPanel();
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browserRow.setLayout( new BoxLayout( browserRow, BoxLayout.X_AXIS));
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domainPane = new JList( domainList);
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domainPane.addListSelectionListener( this);
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JScrollPane domainScroller = new JScrollPane( domainPane, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
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browserRow.add( domainScroller);
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servicesPane = new JList( servicesList);
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servicesPane.addListSelectionListener( this);
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JScrollPane servicesScroller = new JScrollPane( servicesPane, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
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browserRow.add( servicesScroller);
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servicePane = new JList( serviceList);
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servicePane.addListSelectionListener( this);
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JScrollPane serviceScroller = new JScrollPane( servicePane, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
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browserRow.add( serviceScroller);
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/*
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JPanel buttonRow = new JPanel();
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buttonRow.setLayout( new BoxLayout( buttonRow, BoxLayout.X_AXIS));
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buttonRow.add( Box.createHorizontalGlue());
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JButton connectButton = new JButton( "Don't Connect");
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buttonRow.add( connectButton);
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buttonRow.add( Box.createRigidArea( new Dimension( 16, 0)));
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*/
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JPanel labelRow = new JPanel();
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labelRow.setLayout( new BoxLayout( labelRow, BoxLayout.X_AXIS));
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labelRow.add( new JLabel( " Host: "));
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hostLabel = new JLabel();
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labelRow.add( hostLabel);
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labelRow.add( Box.createRigidArea( new Dimension( 32, 0)));
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labelRow.add( new JLabel( "Port: "));
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portLabel = new JLabel();
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labelRow.add( portLabel);
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labelRow.add( Box.createHorizontalGlue());
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parent.add( browserRow);
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parent.add( Box.createRigidArea( new Dimension( 0, 8)));
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parent.add( labelRow);
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// parent.add( buttonRow);
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parent.add( Box.createRigidArea( new Dimension( 0, 16)));
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}
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public void valueChanged( ListSelectionEvent e)
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{
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try {
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if ( e.getSource() == domainPane && !e.getValueIsAdjusting())
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{
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int newSel = domainPane.getSelectedIndex();
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if ( -1 != newSel)
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{
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if ( serviceBrowser != null)
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serviceBrowser.stop();
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serviceList.removeAllElements();
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servicesBrowser = DNSSD.browse( 0, 0, "_services._dns-sd._udp.", "", servicesList);
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}
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}
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else if ( e.getSource() == servicesPane && !e.getValueIsAdjusting())
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{
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int newSel = servicesPane.getSelectedIndex();
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if ( serviceBrowser != null)
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serviceBrowser.stop();
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serviceList.removeAllElements();
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if ( -1 != newSel)
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serviceBrowser = DNSSD.browse( 0, 0, servicesList.getNthRegType( newSel), "", serviceList);
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}
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else if ( e.getSource() == servicePane && !e.getValueIsAdjusting())
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{
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int newSel = servicePane.getSelectedIndex();
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hostLabel.setText( "");
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portLabel.setText( "");
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if ( -1 != newSel)
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{
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DNSSD.resolve( 0, serviceList.getNthInterface( newSel),
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serviceList.getNthServiceName( newSel),
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serviceList.getNthRegType( newSel),
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serviceList.getNthDomain( newSel),
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this);
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}
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}
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}
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catch ( Exception ex) { terminateWithException( ex); }
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}
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public void run()
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{
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hostLabel.setText( hostNameForUpdate);
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portLabel.setText( String.valueOf( portForUpdate));
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}
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public void serviceResolved( DNSSDService resolver, int flags, int ifIndex, String fullName,
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String hostName, int port, TXTRecord txtRecord)
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{
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// We want to update GUI on the AWT event dispatching thread, but we can't stop
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// the resolve from that thread, since stop() is synchronized with this callback.
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// So, we stop the resolve on this thread, then invokeAndWait on the AWT event thread.
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resolver.stop();
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hostNameForUpdate = hostName;
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portForUpdate = port;
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try {
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SwingUtilities.invokeAndWait(this);
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}
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catch ( Exception e)
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{
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e.printStackTrace();
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}
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}
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public void operationFailed( DNSSDService service, int errorCode)
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{
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service.stop();
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// handle failure here
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}
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protected static void terminateWithException( Exception e)
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{
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e.printStackTrace();
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System.exit( -1);
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}
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public static void main(String s[])
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{
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app = new BrowserApp();
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}
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}
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class BrowserListModel extends DefaultListModel implements BrowseListener, Runnable
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{
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public BrowserListModel()
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{
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addCache = new Vector();
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removeCache = new Vector();
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}
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/* The Browser invokes this callback when a service is discovered. */
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public void serviceFound( DNSSDService browser, int flags, int ifIndex,
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String serviceName, String regType, String domain)
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{
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addCache.add( new BrowserListElem( serviceName, domain, regType, ifIndex));
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if ( ( flags & DNSSD.MORE_COMING) == 0)
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this.scheduleOnEventThread();
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}
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public void serviceLost( DNSSDService browser, int flags, int ifIndex,
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String serviceName, String regType, String domain)
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{
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removeCache.add( serviceName);
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if ( ( flags & DNSSD.MORE_COMING) == 0)
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this.scheduleOnEventThread();
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}
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public void run()
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{
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while ( removeCache.size() > 0)
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{
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String serviceName = (String) removeCache.remove( removeCache.size() - 1);
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int matchInd = this.findMatching( serviceName); // probably doesn't handle near-duplicates well.
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if ( matchInd != -1)
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this.removeElementAt( matchInd);
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}
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while ( addCache.size() > 0)
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{
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BrowserListElem elem = (BrowserListElem) addCache.remove( addCache.size() - 1);
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if ( -1 == this.findMatching( elem.fServiceName)) // probably doesn't handle near-duplicates well.
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this.addInSortOrder( elem);
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}
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}
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public void operationFailed( DNSSDService service, int errorCode)
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{
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// handle failure here
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}
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/* The list contains BrowserListElem's */
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class BrowserListElem
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{
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public BrowserListElem( String serviceName, String domain, String type, int ifIndex)
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{ fServiceName = serviceName; fDomain = domain; fType = type; fInt = ifIndex; }
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public String toString() { return fServiceName; }
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public String fServiceName, fDomain, fType;
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public int fInt;
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}
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public String getNthServiceName( int n)
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{
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BrowserListElem sel = (BrowserListElem) this.get( n);
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return sel.fServiceName;
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}
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public String getNthRegType( int n)
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{
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BrowserListElem sel = (BrowserListElem) this.get( n);
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return sel.fType;
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}
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public String getNthDomain( int n)
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{
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BrowserListElem sel = (BrowserListElem) this.get( n);
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return sel.fDomain;
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}
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public int getNthInterface( int n)
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{
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BrowserListElem sel = (BrowserListElem) this.get( n);
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return sel.fInt;
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}
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protected void addInSortOrder( Object obj)
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{
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int i;
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for ( i = 0; i < this.size(); i++)
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if ( sCollator.compare( obj.toString(), this.getElementAt( i).toString()) < 0)
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break;
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this.add( i, obj);
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}
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protected int findMatching( String match)
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{
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for ( int i = 0; i < this.size(); i++)
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if ( match.equals( this.getElementAt( i).toString()))
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return i;
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return -1;
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}
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protected void scheduleOnEventThread()
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{
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try {
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SwingUtilities.invokeAndWait( this);
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}
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catch ( Exception e)
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{
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e.printStackTrace();
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}
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}
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protected Vector removeCache; // list of serviceNames to remove
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protected Vector addCache; // list of BrowserListElem's to add
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protected static Collator sCollator;
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static // Initialize our static variables
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{
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sCollator = Collator.getInstance();
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sCollator.setStrength( Collator.PRIMARY);
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}
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}
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class ServicesBrowserListModel extends BrowserListModel
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{
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/* The Browser invokes this callback when a service is discovered. */
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public void serviceFound( DNSSDService browser, int flags, int ifIndex,
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String serviceName, String regType, String domain)
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// Overridden to stuff serviceName into regType and make serviceName human-readable.
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{
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regType = serviceName + ( regType.startsWith( "_udp.") ? "._udp." : "._tcp.");
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super.serviceFound( browser, flags, ifIndex, this.mapTypeToName( serviceName), regType, domain);
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}
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public void serviceLost( DNSSDService browser, int flags, int ifIndex,
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String serviceName, String regType, String domain)
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// Overridden to make serviceName human-readable.
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{
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super.serviceLost( browser, flags, ifIndex, this.mapTypeToName( serviceName), regType, domain);
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}
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protected String mapTypeToName( String type)
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// Convert a registration type into a human-readable string. Returns original string on no-match.
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{
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final String[] namedServices = {
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"_afpovertcp", "Apple File Sharing",
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"_http", "World Wide Web servers",
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"_daap", "Digital Audio Access",
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"_apple-sasl", "Apple Password Servers",
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"_distcc", "Distributed Compiler nodes",
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"_finger", "Finger servers",
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"_ichat", "iChat clients",
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"_presence", "iChat AV clients",
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"_ssh", "SSH servers",
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"_telnet", "Telnet servers",
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"_workstation", "Macintosh Manager clients",
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"_bootps", "BootP servers",
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"_xserveraid", "XServe RAID devices",
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"_eppc", "Remote AppleEvents",
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"_ftp", "FTP services",
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"_tftp", "TFTP services"
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};
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for ( int i = 0; i < namedServices.length; i+=2)
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if ( namedServices[i].equals( type))
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return namedServices[i + 1];
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return type;
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}
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}
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class DomainListModel extends DefaultListModel implements DomainListener
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{
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/* Called when a domain is discovered. */
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public void domainFound( DNSSDService domainEnum, int flags, int ifIndex, String domain)
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{
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if ( !this.contains( domain))
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this.addElement( domain);
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}
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public void domainLost( DNSSDService domainEnum, int flags, int ifIndex, String domain)
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{
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if ( this.contains( domain))
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this.removeElement( domain);
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}
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public void operationFailed( DNSSDService service, int errorCode)
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{
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// handle failure here
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}
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}
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Reference in New Issue
Block a user