gistfile1.java

public final class LittleEndianLengthEncoder extends MessageToByteEncoder<ByteBuf> {
    @Override
    protected void encode(ChannelHandlerContext channelHandlerContext, ByteBuf in, ByteBuf out) throws Exception {
        final ByteOrder order = out.order();
        out.order(ByteOrder.LITTLE_ENDIAN)
            .writeInt(in.readInt())
            .order(order)
            .writeBytes(in);
    }
}