Coverage Report - fr.paris.lutece.plugins.captcha.modules.jcaptcha.service.sound.SequenceAudioInputStream
 
Classes in this File Line Coverage Branch Coverage Complexity
SequenceAudioInputStream
0 %
0/35
0 %
0/14
2,571
 
 1  
 /*
 2  
  * Copyright (c) 2002-2014, Mairie de Paris
 3  
  * All rights reserved.
 4  
  *
 5  
  * Redistribution and use in source and binary forms, with or without
 6  
  * modification, are permitted provided that the following conditions
 7  
  * are met:
 8  
  *
 9  
  *  1. Redistributions of source code must retain the above copyright notice
 10  
  *     and the following disclaimer.
 11  
  *
 12  
  *  2. Redistributions in binary form must reproduce the above copyright notice
 13  
  *     and the following disclaimer in the documentation and/or other materials
 14  
  *     provided with the distribution.
 15  
  *
 16  
  *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
 17  
  *     contributors may be used to endorse or promote products derived from
 18  
  *     this software without specific prior written permission.
 19  
  *
 20  
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 21  
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 22  
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 23  
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 24  
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 25  
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 26  
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 27  
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 28  
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 29  
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 30  
  * POSSIBILITY OF SUCH DAMAGE.
 31  
  *
 32  
  * License 1.0
 33  
  */
 34  
 package fr.paris.lutece.plugins.captcha.modules.jcaptcha.service.sound;
 35  
 
 36  
 import java.io.ByteArrayInputStream;
 37  
 import java.io.IOException;
 38  
 import java.util.ArrayList;
 39  
 import java.util.Collection;
 40  
 import java.util.Iterator;
 41  
 import java.util.List;
 42  
 
 43  
 import javax.sound.sampled.AudioFormat;
 44  
 import javax.sound.sampled.AudioInputStream;
 45  
 import javax.sound.sampled.AudioSystem;
 46  
 
 47  
 
 48  
 /**
 49  
  *
 50  
  * @author lutecer
 51  
  *
 52  
  */
 53  
 public class SequenceAudioInputStream extends AudioInputStream
 54  
 {
 55  
     private List<AudioInputStream> _audioInputStreamList;
 56  
     private int _nCurrentStream;
 57  
 
 58  
     /**
 59  
      *
 60  
      * @param audioFormat the audio Format
 61  
      * @param audioInputStreams the audio InputStreams
 62  
      */
 63  
     public SequenceAudioInputStream( AudioFormat audioFormat, Collection<AudioInputStream> audioInputStreams )
 64  
     {
 65  0
         super( new ByteArrayInputStream( new byte[0] ), audioFormat, AudioSystem.NOT_SPECIFIED );
 66  0
         _audioInputStreamList = new ArrayList<AudioInputStream>( audioInputStreams );
 67  0
         _nCurrentStream = 0;
 68  0
     }
 69  
 
 70  
     /**
 71  
      *
 72  
      * @return the audio inputStream
 73  
      */
 74  
     private AudioInputStream getCurrentStream(  )
 75  
     {
 76  0
         return _audioInputStreamList.get( _nCurrentStream );
 77  
     }
 78  
 
 79  
     /**
 80  
      *
 81  
      * @return true if mcurrent stream < audioInputStreamList size
 82  
      */
 83  
     private boolean advanceStream(  )
 84  
     {
 85  0
         _nCurrentStream++;
 86  
 
 87  0
         boolean bAnotherStreamAvailable = ( _nCurrentStream < _audioInputStreamList.size(  ) );
 88  
 
 89  0
         return bAnotherStreamAvailable;
 90  
     }
 91  
 
 92  
     /**
 93  
      * @return frame length
 94  
      */
 95  
     public long getFrameLength(  )
 96  
     {
 97  0
         long lLengthInFrames = 0;
 98  0
         Iterator<AudioInputStream> streamIterator = _audioInputStreamList.iterator(  );
 99  
 
 100  0
         while ( streamIterator.hasNext(  ) )
 101  
         {
 102  0
             AudioInputStream stream = streamIterator.next( );
 103  0
             long lLength = stream.getFrameLength(  );
 104  
 
 105  0
             if ( lLength == AudioSystem.NOT_SPECIFIED )
 106  
             {
 107  0
                 return AudioSystem.NOT_SPECIFIED;
 108  
             }
 109  
             else
 110  
             {
 111  0
                 lLengthInFrames += lLength;
 112  
             }
 113  0
         }
 114  
 
 115  0
         return lLengthInFrames;
 116  
     }
 117  
 
 118  
     /**
 119  
      *  @return the byte read
 120  
      *  @throws IOException the IOException
 121  
      */
 122  
     public int read(  ) throws IOException
 123  
     {
 124  0
         AudioInputStream stream = getCurrentStream(  );
 125  0
         int nByte = stream.read(  );
 126  
 
 127  0
         if ( nByte == -1 )
 128  
         {
 129  
             /*
 130  
              * The end of the current stream has been signaled. We try to
 131  
              * advance to the next stream.
 132  
              */
 133  0
             boolean bAnotherStreamAvailable = advanceStream(  );
 134  
 
 135  0
             if ( bAnotherStreamAvailable )
 136  
             {
 137  
                 /*
 138  
                  * There is another stream. We recurse into this method to read
 139  
                  * from it.
 140  
                  */
 141  0
                 return read(  );
 142  
             }
 143  
             else
 144  
             {
 145  
                 /*
 146  
                  * No more data. We signal EOF.
 147  
                  */
 148  0
                 return -1;
 149  
             }
 150  
         }
 151  
         else
 152  
         {
 153  
             /*
 154  
              * The most common case: We return the byte.
 155  
              */
 156  0
             return nByte;
 157  
         }
 158  
     }
 159  
 
 160  
     /**
 161  
      * @param abData the data
 162  
      * @param nOffset the offset
 163  
      * @param nLength the length
 164  
      * @return the bytes read
 165  
      * @throws IOException the IOException
 166  
      */
 167  
     public int read( byte[] abData, int nOffset, int nLength )
 168  
         throws IOException
 169  
     {
 170  0
         AudioInputStream stream = getCurrentStream(  );
 171  0
         int nBytesRead = stream.read( abData, nOffset, nLength );
 172  
 
 173  0
         if ( nBytesRead == -1 )
 174  
         {
 175  
             /*
 176  
              * The end of the current stream has been signaled. We try to
 177  
              * advance to the next stream.
 178  
              */
 179  0
             boolean bAnotherStreamAvailable = advanceStream(  );
 180  
 
 181  0
             if ( bAnotherStreamAvailable )
 182  
             {
 183  
                 /*
 184  
                  * There is another stream. We recurse into this method to read
 185  
                  * from it.
 186  
                  */
 187  0
                 return read( abData, nOffset, nLength );
 188  
             }
 189  
             else
 190  
             {
 191  
                 /*
 192  
                  * No more data. We signal EOF.
 193  
                  */
 194  0
                 return -1;
 195  
             }
 196  
         }
 197  
         else
 198  
         {
 199  
             /*
 200  
              * The most common case: We return the length.
 201  
              */
 202  0
             return nBytesRead;
 203  
         }
 204  
     }
 205  
 
 206  
     /**
 207  
      * @return the current stream available
 208  
      * @throws IOException the IOException
 209  
      */
 210  
     public int available(  ) throws IOException
 211  
     {
 212  0
         return getCurrentStream(  ).available(  );
 213  
     }
 214  
 }
 215  
 /** * SequenceAudioInputStream.java ** */