How to use

toByteBufferArray

method

in

org.glassfish.grizzly.memory.CompositeBuffer

public static int readCompositeBuffer(final TCPNIOConnection connection,
    final CompositeBuffer buffer) throws IOException {
  
  final SocketChannel socketChannel = (SocketChannel) connection.getChannel();
  final int oldPos = buffer.position();
  final ByteBufferArray array = buffer.toByteBufferArray();
  final ByteBuffer byteBuffers[] = array.getArray();
  final int size = array.size();
  
  final int read = (int) socketChannel.read(byteBuffers, 0, size);
  array.restore();
  array.recycle();
  
  if (read > 0) {
    buffer.position(oldPos + read);
  }
  
  if (LOGGER.isLoggable(Level.FINE)) {
    LOGGER.log(Level.FINE, "TCPNIOConnection ({0}) (nonallocated, composite) read {1} bytes", new Object[]{
          connection, read
        });
  }
  
  return read;
}

public static int readCompositeBuffer(final TCPNIOConnection connection,
    final CompositeBuffer buffer) throws IOException {
  
  final SocketChannel socketChannel = (SocketChannel) connection.getChannel();
  final int oldPos = buffer.position();
  final ByteBufferArray array = buffer.toByteBufferArray();
  final ByteBuffer byteBuffers[] = array.getArray();
  final int size = array.size();
  
  final int read = (int) socketChannel.read(byteBuffers, 0, size);
  array.restore();
  array.recycle();
  
  if (read > 0) {
    buffer.position(oldPos + read);
  }
  
  if (LOGGER.isLoggable(Level.FINE)) {
    LOGGER.log(Level.FINE, "TCPNIOConnection ({0}) (nonallocated, composite) read {1} bytes", new Object[]{
          connection, read
        });
  }
  
  return read;
}

public static int readCompositeBuffer(final TCPNIOConnection connection,
    final CompositeBuffer buffer) throws IOException {
  
  final SocketChannel socketChannel = (SocketChannel) connection.getChannel();
  final int oldPos = buffer.position();
  final ByteBufferArray array = buffer.toByteBufferArray();
  final ByteBuffer byteBuffers[] = array.getArray();
  final int size = array.size();
  
  final int read = (int) socketChannel.read(byteBuffers, 0, size);
  array.restore();
  array.recycle();
  
  if (read > 0) {
    buffer.position(oldPos + read);
  }
  
  if (LOGGER.isLoggable(Level.FINE)) {
    LOGGER.log(Level.FINE, "TCPNIOConnection ({0}) (nonallocated, composite) read {1} bytes", new Object[]{
          connection, read
        });
  }
  
  return read;
}

public static int readCompositeBuffer(final TCPNIOConnection connection,
    final CompositeBuffer buffer) throws IOException {
  
  final SocketChannel socketChannel = (SocketChannel) connection.getChannel();
  final int oldPos = buffer.position();
  final ByteBufferArray array = buffer.toByteBufferArray();
  final ByteBuffer byteBuffers[] = array.getArray();
  final int size = array.size();
  
  final int read = (int) socketChannel.read(byteBuffers, 0, size);
  array.restore();
  array.recycle();
  
  if (read > 0) {
    buffer.position(oldPos + read);
  }
  
  if (LOGGER.isLoggable(Level.FINE)) {
    LOGGER.log(Level.FINE, "TCPNIOConnection ({0}) (nonallocated, composite) read {1} bytes", new Object[]{
          connection, read
        });
  }
  
  return read;
}

public static int readCompositeBuffer(final TCPNIOConnection connection,
    final CompositeBuffer buffer) throws IOException {
  
  final SocketChannel socketChannel = (SocketChannel) connection.getChannel();
  final int oldPos = buffer.position();
  final ByteBufferArray array = buffer.toByteBufferArray();
  final ByteBuffer byteBuffers[] = array.getArray();
  final int size = array.size();
  
  final int read = (int) socketChannel.read(byteBuffers, 0, size);
  array.restore();
  array.recycle();
  
  if (read > 0) {
    buffer.position(oldPos + read);
  }
  
  if (LOGGER.isLoggable(Level.FINE)) {
    LOGGER.log(Level.FINE, "TCPNIOConnection ({0}) (nonallocated, composite) read {1} bytes", new Object[]{
          connection, read
        });
  }
  
  return read;
}

public static int readCompositeBuffer(final TCPNIOConnection connection,
    final CompositeBuffer buffer) throws IOException {
  
  final SocketChannel socketChannel = (SocketChannel) connection.getChannel();
  final int oldPos = buffer.position();
  final ByteBufferArray array = buffer.toByteBufferArray();
  final ByteBuffer byteBuffers[] = array.getArray();
  final int size = array.size();
  
  final int read = (int) socketChannel.read(byteBuffers, 0, size);
  array.restore();
  array.recycle();
  
  if (read > 0) {
    buffer.position(oldPos + read);
  }
  
  if (LOGGER.isLoggable(Level.FINE)) {
    LOGGER.log(Level.FINE, "TCPNIOConnection ({0}) (nonallocated, composite) read {1} bytes", new Object[]{
          connection, read
        });
  }
  
  return read;
}

public static int readCompositeBuffer(final TCPNIOConnection connection,
    final CompositeBuffer buffer) throws IOException {
  
  final SocketChannel socketChannel = (SocketChannel) connection.getChannel();
  final int oldPos = buffer.position();
  final ByteBufferArray array = buffer.toByteBufferArray();
  final ByteBuffer byteBuffers[] = array.getArray();
  final int size = array.size();
  
  final int read = (int) socketChannel.read(byteBuffers, 0, size);
  array.restore();
  array.recycle();
  
  if (read > 0) {
    buffer.position(oldPos + read);
  }
  
  if (LOGGER.isLoggable(Level.FINE)) {
    LOGGER.log(Level.FINE, "TCPNIOConnection ({0}) (nonallocated, composite) read {1} bytes", new Object[]{
          connection, read
        });
  }
  
  return read;
}

public static int readCompositeBuffer(final TCPNIOConnection connection,
    final CompositeBuffer buffer) throws IOException {
  
  final SocketChannel socketChannel = (SocketChannel) connection.getChannel();
  final int oldPos = buffer.position();
  final ByteBufferArray array = buffer.toByteBufferArray();
  final ByteBuffer byteBuffers[] = array.getArray();
  final int size = array.size();
  
  final int read = (int) socketChannel.read(byteBuffers, 0, size);
  array.restore();
  array.recycle();
  
  if (read > 0) {
    buffer.position(oldPos + read);
  }
  
  if (LOGGER.isLoggable(Level.FINE)) {
    LOGGER.log(Level.FINE, "TCPNIOConnection ({0}) (nonallocated, composite) read {1} bytes", new Object[]{
          connection, read
        });
  }
  
  return read;
}

public static int readCompositeBuffer(final TCPNIOConnection connection,
    final CompositeBuffer buffer) throws IOException {
  
  final SocketChannel socketChannel = (SocketChannel) connection.getChannel();
  final int oldPos = buffer.position();
  final ByteBufferArray array = buffer.toByteBufferArray();
  final ByteBuffer byteBuffers[] = array.getArray();
  final int size = array.size();
  
  final int read = (int) socketChannel.read(byteBuffers, 0, size);
  array.restore();
  array.recycle();
  
  if (read > 0) {
    buffer.position(oldPos + read);
  }
  
  if (LOGGER.isLoggable(Level.FINE)) {
    LOGGER.log(Level.FINE, "TCPNIOConnection ({0}) (nonallocated, composite) read {1} bytes", new Object[]{
          connection, read
        });
  }
  
  return read;
}

public static int readCompositeBuffer(final TCPNIOConnection connection,
    final CompositeBuffer buffer) throws IOException {
  
  final SocketChannel socketChannel = (SocketChannel) connection.getChannel();
  final int oldPos = buffer.position();
  final ByteBufferArray array = buffer.toByteBufferArray();
  final ByteBuffer byteBuffers[] = array.getArray();
  final int size = array.size();
  
  final int read = (int) socketChannel.read(byteBuffers, 0, size);
  array.restore();
  array.recycle();
  
  if (read > 0) {
    buffer.position(oldPos + read);
  }
  
  if (LOGGER.isLoggable(Level.FINE)) {
    LOGGER.log(Level.FINE, "TCPNIOConnection ({0}) (nonallocated, composite) read {1} bytes", new Object[]{
          connection, read
        });
  }
  
  return read;
}

public static int readCompositeBuffer(final TCPNIOConnection connection,
    final CompositeBuffer buffer) throws IOException {
  
  final SocketChannel socketChannel = (SocketChannel) connection.getChannel();
  final int oldPos = buffer.position();
  final ByteBufferArray array = buffer.toByteBufferArray();
  final ByteBuffer byteBuffers[] = array.getArray();
  final int size = array.size();
  
  final int read = (int) socketChannel.read(byteBuffers, 0, size);
  array.restore();
  array.recycle();
  
  if (read > 0) {
    buffer.position(oldPos + read);
  }
  
  if (LOGGER.isLoggable(Level.FINE)) {
    LOGGER.log(Level.FINE, "TCPNIOConnection ({0}) (nonallocated, composite) read {1} bytes", new Object[]{
          connection, read
        });
  }
  
  return read;
}

public static int readCompositeBuffer(final TCPNIOConnection connection,
    final CompositeBuffer buffer) throws IOException {
  
  final SocketChannel socketChannel = (SocketChannel) connection.getChannel();
  final int oldPos = buffer.position();
  final ByteBufferArray array = buffer.toByteBufferArray();
  final ByteBuffer byteBuffers[] = array.getArray();
  final int size = array.size();
  
  final int read = (int) socketChannel.read(byteBuffers, 0, size);
  array.restore();
  array.recycle();
  
  if (read > 0) {
    buffer.position(oldPos + read);
  }
  
  if (LOGGER.isLoggable(Level.FINE)) {
    LOGGER.log(Level.FINE, "TCPNIOConnection ({0}) (nonallocated, composite) read {1} bytes", new Object[]{
          connection, read
        });
  }
  
  return read;
}

@Test
public void testToByteBufferArray() {
  final byte[] bytes = new byte[]{0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
  final List<Buffer> bufferList = new ArrayList<Buffer>();
  for (byte b : bytes) {
    final Buffer buffer = mm.allocate(1);
    buffer.put(0, b);
    bufferList.add(buffer);
  }
  final Buffer[] buffers = bufferList.toArray(new Buffer[bufferList.size()]);
  final CompositeBuffer composite = CompositeBuffer.newBuffer(mm, buffers);
  for (int i = 0; i < bytes.length; i++) {
    for (int j = i; j < bytes.length; j++) {
      final ByteBufferArray bbArray = composite.toByteBufferArray(i, j);
      
      int bytesChecked = 0;
      final ByteBuffer[] bbs = bbArray.getArray();
      for (int k = 0; k < bbArray.size(); k++) {
        final ByteBuffer bb = bbs[k];
        while (bb.hasRemaining()) {
          final byte got = bb.get();
          assertEquals("Testcase [pos=" + i + " lim=" + j + " bytenumber=" + bytesChecked + "]", bytes[i + bytesChecked], got);
          bytesChecked++;
        }
      }
      assertEquals(j - i, bytesChecked);
      bbArray.restore();
    }
  }
}

  @Override
  public void run() {
    // Initialize memory manager
    mm.allocate(33);
    final int initialSize = mm.getReadyThreadBufferSize();
    CompositeBuffer compositeBuffer = CompositeBuffer.newBuffer(mm);
    for (int i = 0; i < 11; i++) {
      Buffer b = mm.allocate(1228);
      b.allowBufferDispose(true);
      compositeBuffer.append(b);
    }
    compositeBuffer.toByteBufferArray(0, 12280);
    compositeBuffer.limit(1228);
    compositeBuffer.shrink();
    assertEquals(initialSize - (1228 * 11 - 12280),
        mm.getReadyThreadBufferSize());
    compositeBuffer.position(compositeBuffer.limit());
    compositeBuffer.shrink();
    assertEquals(initialSize,
        mm.getReadyThreadBufferSize());
  }
};