1 /*
   2  * Copyright (c) 1995, 2003, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.applet;
  27 
  28 import java.io.IOException;
  29 import java.io.InputStream;
  30 import java.io.ByteArrayInputStream;
  31 import java.net.URL;
  32 import java.net.URLConnection;
  33 import java.applet.AudioClip;
  34 
  35 import com.sun.media.sound.JavaSoundAudioClip;
  36 
  37 
  38 /**
  39  * Applet audio clip;
  40  *
  41  * @author Arthur van Hoff, Kara Kytle
  42  */
  43 
  44 @SuppressWarnings("deprecation")
  45 public class AppletAudioClip implements AudioClip {
  46 
  47     // url that this AudioClip is based on
  48     private URL url = null;
  49 
  50     // the audio clip implementation
  51     private AudioClip audioClip = null;
  52 
  53     boolean DEBUG = false /*true*/;
  54 
  55     /**
  56      * Constructs an AppletAudioClip from an URL.
  57      */
  58     public AppletAudioClip(URL url) {
  59 
  60         // store the url
  61         this.url = url;
  62 
  63         try {
  64             // create a stream from the url, and use it
  65             // in the clip.
  66             InputStream in = url.openStream();
  67             createAppletAudioClip(in);
  68 
  69         } catch (IOException e) {
  70                 /* just quell it */
  71             if (DEBUG) {
  72                 System.err.println("IOException creating AppletAudioClip" + e);
  73             }
  74         }
  75     }
  76 
  77     /**
  78      * Constructs an AppletAudioClip from a URLConnection.
  79      */
  80     public AppletAudioClip(URLConnection uc) {
  81 
  82         try {
  83             // create a stream from the url, and use it
  84             // in the clip.
  85             createAppletAudioClip(uc.getInputStream());
  86 
  87         } catch (IOException e) {
  88                 /* just quell it */
  89             if (DEBUG) {
  90                 System.err.println("IOException creating AppletAudioClip" + e);
  91             }
  92         }
  93     }
  94 
  95 
  96     /**
  97      * For constructing directly from Jar entries, or any other
  98      * raw Audio data. Note that the data provided must include the format
  99      * header.
 100      */
 101     public AppletAudioClip(byte [] data) {
 102 
 103         try {
 104 
 105             // construct a stream from the byte array
 106             InputStream in = new ByteArrayInputStream(data);
 107 
 108             createAppletAudioClip(in);
 109 
 110         } catch (IOException e) {
 111                 /* just quell it */
 112             if (DEBUG) {
 113                 System.err.println("IOException creating AppletAudioClip " + e);
 114             }
 115         }
 116     }
 117 
 118 
 119     /*
 120      * Does the real work of creating an AppletAudioClip from an InputStream.
 121      * This function is used by both constructors.
 122      */
 123     void createAppletAudioClip(InputStream in) throws IOException {
 124 
 125         try {
 126             audioClip = new JavaSoundAudioClip(in);
 127         } catch (Exception e3) {
 128             // no matter what happened, we throw an IOException to avoid changing the interfaces....
 129             throw new IOException("Failed to construct the AudioClip: " + e3);
 130         }
 131     }
 132 
 133 
 134     public synchronized void play() {
 135 
 136                 if (audioClip != null)
 137                         audioClip.play();
 138     }
 139 
 140 
 141     public synchronized void loop() {
 142 
 143                 if (audioClip != null)
 144                         audioClip.loop();
 145     }
 146 
 147     public synchronized void stop() {
 148 
 149                 if (audioClip != null)
 150                         audioClip.stop();
 151     }
 152 }