Example usage for io.netty.buffer ByteBuf getShortLE

Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf getShortLE.

Prototype

public abstract short getShortLE(int index);

Source Link

Document

Gets a 16-bit short integer at the specified absolute index in this buffer in Little Endian Byte Order.

Usage

From source file:org.apache.activemq.artemis.utils.AbstractByteBufPool.java

License:Apache License

private static int byteBufHashCode(final ByteBuf byteBuf, final int offset, final int length) {
    final int intCount = length >>> 1;
    final int byteCount = length & 1;
    int hashCode = 1;
    int arrayIndex = offset;
    for (int i = 0; i < intCount; i++) {
        final short shortLE = byteBuf.getShortLE(arrayIndex);
        final short nativeShort = PlatformDependent.BIG_ENDIAN_NATIVE_ORDER ? Short.reverseBytes(shortLE)
                : shortLE;// w  ww .  j a  v  a  2  s . c om
        hashCode = 31 * hashCode + nativeShort;
        arrayIndex += 2;
    }
    for (int i = 0; i < byteCount; i++) {
        hashCode = 31 * hashCode + byteBuf.getByte(arrayIndex++);
    }
    return hashCode;
}

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From source file:org.traccar.protocol.SmokeyProtocolDecoder.java

License:Apache License

private static void sendResponse(Channel channel, SocketAddress remoteAddress, ByteBuf id, int index,
        int report) {

    if (channel != null) {
        ByteBuf response = Unpooled.buffer();
        response.writeBytes("SM".getBytes(StandardCharsets.US_ASCII));
        response.writeByte(3); // protocol version
        response.writeByte(MSG_DATE_RECORD_ACK);
        response.writeBytes(id);/*  ww  w  . j  ava 2 s .  co  m*/
        response.writeInt(
                (int) ChronoUnit.SECONDS.between(Instant.parse("2000-01-01T00:00:00.00Z"), Instant.now()));
        response.writeByte(index);
        response.writeByte(report - 0x200);

        short checksum = (short) 0xF5A0;
        for (int i = 0; i < response.readableBytes(); i += 2) {
            checksum ^= response.getShortLE(i);
        }
        response.writeShort(checksum);

        channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
    }
}

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