Esempio n. 1
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  /**
   * Creates a new direct buffer with the specified {@code endianness} and {@code capacity}. The new
   * buffer's {@code readerIndex} and {@code writerIndex} are {@code 0}.
   */
  public static ChannelBuffer directBuffer(ByteOrder endianness, int capacity) {
    if (endianness == null) {
      throw new NullPointerException("endianness");
    }
    if (capacity == 0) {
      return EMPTY_BUFFER;
    }

    ChannelBuffer buffer =
        new ByteBufferBackedChannelBuffer(ByteBuffer.allocateDirect(capacity).order(endianness));
    buffer.clear();
    return buffer;
  }
  public ChannelBuffer getBuffer(ByteOrder order, int capacity) {
    if (order == null) {
      throw new NullPointerException("order");
    }
    if (capacity < 0) {
      throw new IllegalArgumentException("capacity: " + capacity);
    }
    if (capacity == 0) {
      return ChannelBuffers.EMPTY_BUFFER;
    }
    if (capacity >= preallocatedBufferCapacity) {
      return ChannelBuffers.directBuffer(order, capacity);
    }

    ChannelBuffer slice;
    if (order == ByteOrder.BIG_ENDIAN) {
      slice = allocateBigEndianBuffer(capacity);
    } else {
      slice = allocateLittleEndianBuffer(capacity);
    }
    slice.clear();
    return slice;
  }