/**
* 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;
}