Examples of java.nio.ByteBuffer

java.nio.ByteBuffer
A buffer of bytes.
A byte buffer can be created in either of the following ways:
- {@link #allocate(int) Allocate} a new byte array and create a bufferbased on it;
- {@link #allocateDirect(int) Allocate} a memory block and create a directbuffer based on it;
- {@link #wrap(byte[]) Wrap} an existing byte array to create a newbuffer.

        }
        if(byteBuffer == null || ((byteBuffer.capacity() - byteBuffer.limit()) < size)) {
            byteBuffer = ByteBuffer.allocate(size);
        }
        byteBuffer.limit(byteBuffer.position() + size);
        ByteBuffer view = byteBuffer.slice();
        byteBuffer.position(byteBuffer.limit());
        return view;
    }

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        b = Hex.decodeHex(dump.toCharArray());
    }
    
    public void testDecodeError() throws CharacterCodingException {
        CharsetDecoder decoder = Charset.forName("UTF-8").newDecoder();
        ByteBuffer buffer = ByteBuffer.wrap(b);
        
        try {
            decoder.decode(buffer);
            fail("Must throw MalformedInputException");
        } catch (MalformedInputException e) {

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        public int read(byte b[]) throws IOException {
            return read( b, 0, b.length );
        }


        public int read(byte b[], int off, int len) throws IOException {
            ByteBuffer buffer = ByteBuffer.wrap( b, off, len );
            return client.in.source().read( buffer );
        }

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        public void write(byte b[]) throws IOException {
            write( b, 0, b.length );
        }


        public void write(byte b[], int off, int len) throws IOException {
            ByteBuffer buffer = ByteBuffer.wrap(b, off, len);
            while( buffer.hasRemaining() ) {
                int written = client.out.sink().write( buffer );
                if( written == 0 ) {
                    Thread.yield();
                }
            }

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    } else {
      assert false : "Only mono or stereo is supported";
    }


    //read data into buffer
    ByteBuffer buffer = null;
    try {
      int available = ais.available();
      if(available <= 0) {
        available = ais.getFormat().getChannels() * (int) ais.getFrameLength() * ais.getFormat().getSampleSizeInBits() / 8;
      }

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    return wavedata;
  }


  private static ByteBuffer convertAudioBytes(byte[] audio_bytes, boolean two_bytes_data) {
    ByteBuffer dest = ByteBuffer.allocateDirect(audio_bytes.length);
    dest.order(ByteOrder.nativeOrder());
    ByteBuffer src = ByteBuffer.wrap(audio_bytes);
    src.order(ByteOrder.LITTLE_ENDIAN);
    if (two_bytes_data) {
      ShortBuffer dest_short = dest.asShortBuffer();
      ShortBuffer src_short = src.asShortBuffer();
      while (src_short.hasRemaining())
        dest_short.put(src_short.get());
    } else {
      while (src.hasRemaining())
        dest.put(src.get());
    }
    dest.rewind();
    return dest;
  }

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      int  pos_before  = read_insert.position();
      
      for (int i=array_offset;i<array_offset+length;i++){
        
        ByteBuffer  buffer = buffers[i];
        
        int  space = buffer.remaining();
        
        if ( space > 0 ){
          
          if ( space < read_insert.remaining()){
            
            int  old_limit = read_insert.limit();
            
            read_insert.limit( read_insert.position() + space );
            
            buffer.put( read_insert );


            read_insert.limit( old_limit );
            
          }else{
            
            buffer.put( read_insert );
          }
          
          if ( !read_insert.hasRemaining()){
                      
            break;

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        {
          public boolean 
          selectSuccess(
            VirtualChannelSelector selector, SocketChannel sc, Object attachment)
          {
            ByteBuffer  buffer = ByteBuffer.allocate(1024);
            
            try{
              long  len = filter.read( new ByteBuffer[]{ buffer }, 0, 1 );
            
              byte[]  data = new byte[buffer.position()];
              
              buffer.flip();
              
              buffer.get( data );
              
              System.out.println( str + ": " + new String(data));
              
              return( len > 0 );

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    }catch( UnsupportedEncodingException e ){
      
      bytes = data.getBytes();
    }
        
    final ByteBuffer bb = ByteBuffer.wrap( bytes );
    
    try{
      transport.write( bb, false );
      
      if ( bb.remaining() > 0 ){
        
        transport.registerForWriteSelects(
          new TransportHelper.selectListener()
          {
              public boolean 
              selectSuccess(
                TransportHelper  helper, 
                Object       attachment )
              {
                try{
                  int written = helper.write( bb, false );
                  
                  if ( bb.remaining() > 0 ){
                  
                    helper.registerForWriteSelects( this, null );
                    
                  }else{

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  public byte[] getChunkPayload() {
    
    byte[] contentPayload = getContentPayload();
    int length = contentPayload.length;
    ByteBuffer buffer = ByteBuffer.allocate(length + 12);
    buffer.putInt(length);
    buffer.put(type);
    buffer.put(contentPayload);
    
    buffer.position(4);
    buffer.limit(length + 8);
    
    long crc = crc(buffer);
    buffer.limit(length + 12);
    buffer.putInt((int)crc);
    
    buffer.position(0);
    return buffer.array();
    
  }

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