Example usage for io.netty.buffer ByteBuf clear

Introduction

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

Prototype

public abstract ByteBuf clear();

Source Link

Document

Sets the readerIndex and writerIndex of this buffer to 0 .

Usage

From source file:io.moquette.parser.netty.PubAckDecoderTest.java

License:Open Source License

private void initHeader(ByteBuf buff, int messageID) {
    buff.clear().writeByte(AbstractMessage.PUBACK << 4).writeByte(2);

    //return code
    buff.writeShort(messageID);/*  w  ww  .  jav a 2 s  .  c  o  m*/
}

From source file:io.moquette.parser.netty.PublishDecoderTest.java

License:Open Source License

private void initHeader(ByteBuf buff) throws IllegalAccessException {
    ByteBuf tmp = Unpooled.buffer(4).writeBytes(Utils.encodeString("Fake Topic"));
    buff.clear().writeByte(AbstractMessage.PUBLISH << 4)
            .writeBytes(Utils.encodeRemainingLength(tmp.readableBytes()));
    //topic name// w  w w  .j av  a 2  s .  c  om
    buff.writeBytes(tmp);
}

From source file:io.moquette.parser.netty.PublishDecoderTest.java

License:Open Source License

private ByteBuf packetWithTopic(String topicName) throws IllegalAccessException {
    ByteBuf buff = Unpooled.buffer(14);
    ByteBuf topicBuff = Unpooled.buffer(4).writeBytes(Utils.encodeString(topicName));
    buff.clear().writeByte(AbstractMessage.PUBLISH << 4)
            .writeBytes(Utils.encodeRemainingLength(topicBuff.readableBytes()));
    //topic name/*from   w w  w.  j  a  v  a  2s. c o  m*/
    buff.writeBytes(topicBuff);
    return buff;
}

From source file:io.moquette.parser.netty.PublishDecoderTest.java

License:Open Source License

private void initHeaderWithMessageID(ByteBuf buff, int messageID) throws IllegalAccessException {
    ByteBuf tmp = Unpooled.buffer(4).writeBytes(Utils.encodeString("Fake Topic"));
    tmp.writeShort(messageID);/*from w w w .  java 2s.c  om*/
    buff.clear().writeByte(AbstractMessage.PUBLISH << 4 | 0x02) //set Qos to 1
            .writeBytes(Utils.encodeRemainingLength(tmp.readableBytes()));
    //topic name
    buff.writeBytes(tmp);
}

From source file:io.moquette.parser.netty.PublishDecoderTest.java

License:Open Source License

private void initHeaderWithMessageID_Payload(ByteBuf buff, int messageID, byte[] payload)
        throws IllegalAccessException {
    ByteBuf tmp = Unpooled.buffer(4).writeBytes(Utils.encodeString("Fake Topic"));
    tmp.writeShort(messageID);//w  w w . j a  va  2  s .  c o m
    tmp.writeBytes(payload);
    buff.clear().writeByte(AbstractMessage.PUBLISH << 4 | 0x02) //set Qos to 1
            .writeBytes(Utils.encodeRemainingLength(tmp.readableBytes()));
    //topic name
    buff.writeBytes(tmp);
}

From source file:io.moquette.parser.netty.PublishDecoderTest.java

License:Open Source License

private void initHeaderWithMessageID_Payload(ByteBuf buff, int messageID, ByteBuffer payload)
        throws IllegalAccessException {
    ByteBuf tmp = Unpooled.buffer(4).writeBytes(Utils.encodeString("Fake Topic"));
    tmp.writeShort(messageID);/*www  .j  a va2s .  c om*/
    tmp.writeBytes(payload);
    buff.clear().writeByte(AbstractMessage.PUBLISH << 4 | 0x02) //set Qos to 1
            .writeBytes(Utils.encodeRemainingLength(tmp.readableBytes()));
    //topic name
    buff.writeBytes(tmp);
}

From source file:io.moquette.parser.netty.PublishDecoderTest.java

License:Open Source License

private ByteBuf generatePublishQoS0(ByteBuf payload) throws IllegalAccessException {
    int size = payload.capacity();
    ByteBuf messageBody = Unpooled.buffer(size);
    messageBody.writeBytes(Utils.encodeString("/topic"));

    //ONLY for QoS > 1 Utils.writeWord(messageBody, messageID);
    messageBody.writeBytes(payload);/*w ww.ja v a2 s .  co  m*/

    ByteBuf completeMsg = Unpooled.buffer(size);
    completeMsg.clear().writeByte(AbstractMessage.PUBLISH << 4 | 0x00) //set Qos to 0
            .writeBytes(Utils.encodeRemainingLength(messageBody.readableBytes()));
    completeMsg.writeBytes(messageBody);

    return completeMsg;
}

From source file:io.moquette.parser.netty.PublishDecoderTest.java

License:Open Source License

private ByteBuf preparePubclishWithQosFlags(byte flags) {
    ByteBuf buff = Unpooled.buffer(14);
    ByteBuffer payload = ByteBuffer.allocate(3).put(new byte[] { 0x0A, 0x0B, 0x0C });
    ByteBuf tmp = Unpooled.buffer(4).writeBytes(Utils.encodeString("Fake Topic"));
    tmp.writeShort(MESSAGE_ID);/* w w  w  . j  av  a2 s.co m*/
    tmp.writeBytes(payload);
    buff.clear().writeByte(AbstractMessage.PUBLISH << 4 | flags) //set DUP=1 Qos to 11 => b1110
            .writeBytes(Utils.encodeRemainingLength(tmp.readableBytes()));
    //topic name
    buff.writeBytes(tmp);

    return buff;
}

From source file:io.moquette.parser.netty.SubAckDecoderTest.java

License:Open Source License

private void initHeaderQos(ByteBuf buff, int messageID, AbstractMessage.QOSType... qoss)
        throws IllegalAccessException {
    buff.clear().writeByte(AbstractMessage.SUBACK << 4)
            .writeBytes(Utils.encodeRemainingLength(2 + qoss.length));

    buff.writeShort(messageID);//from   w w w . j  a  v a 2 s . co m
    for (AbstractMessage.QOSType qos : qoss) {
        buff.writeByte(qos.byteValue());
    }
}

From source file:io.moquette.parser.netty.SubscribeDecoderTest.java

License:Open Source License

private void initHeaderBadQos(ByteBuf buff) {
    buff.clear().writeByte(AbstractMessage.SUBSCRIBE << 4).writeByte(0);
}