Example usage for io.netty.buffer ByteBuf readUnsignedByte

Introduction

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

Prototype

public abstract short readUnsignedByte();

Source Link

Document

Gets an unsigned byte at the current readerIndex and increases the readerIndex by 1 in this buffer.

Usage

From source file:org.legacy.network.protocol.ondemand.OnDemandEncoder.java

License:Open Source License

@Override
protected void encode(ChannelHandlerContext ctx, OnDemandResponseMessage msg, ByteBuf out) throws Exception {
    OnDemandResponseMessage response = (OnDemandResponseMessage) msg;
    ByteBuf container = response.getContainer();
    int index = response.getType();
    int file = response.getFile();
    ByteBuf buffer = Unpooled.buffer();/*  ww w .ja  va  2  s .  c  o  m*/
    int compression = container.readUnsignedByte();
    int size = ((container.readByte() & 0xff) << 24) + ((container.readByte() & 0xff) << 16)
            + ((container.readByte() & 0xff) << 8) + (container.readByte() & 0xff);
    if (!response.isPriority()) {
        file |= 0x80000000;
    }

    buffer.writeByte(index);
    buffer.writeInt(file);
    buffer.writeByte(compression);
    buffer.writeInt(size);

    int bytes = container.readableBytes();
    if (bytes > 502) {
        bytes = 502;
    }

    buffer.writeBytes(container.readBytes(bytes));

    for (;;) {
        bytes = container.readableBytes();
        if (bytes == 0) {
            break;
        } else if (bytes > 507) {
            bytes = 507;
        }
        buffer.writeByte(index);
        buffer.writeInt(file);
        buffer.writeBytes(container.readBytes(bytes));
    }
}

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From source file:org.legacy.network.protocol.ondemand.XorEncoder.java

License:Open Source License

@Override
protected void encode(ChannelHandlerContext ctx, ByteBuf in, ByteBuf out) throws Exception {
    while (out.isWritable()) {
        out.writeByte(in.readUnsignedByte() ^ key);
    }//from  w w w . j a  v  a  2 s .co  m
}

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From source file:org.mobicents.protocols.ss7.m3ua.impl.message.M3UAMessageImpl.java

License:Open Source License

protected void decode(ByteBuf data) {
    while (data.readableBytes() >= 4) {
        short tag = (short) ((data.readUnsignedByte() << 8) | (data.readUnsignedByte()));
        short len = (short) ((data.readUnsignedByte() << 8) | (data.readUnsignedByte()));

        if (data.readableBytes() < len - 4) {
            return;
        }/*  ww  w  . jav  a  2s.  co m*/

        byte[] value = new byte[len - 4];
        data.readBytes(value);
        parameters.put(tag, factory.createParameter(tag, value));

        // The Parameter Length does not include any padding octets. We have
        // to consider padding here
        int padding = 4 - (len % 4);
        if (padding < 4) {
            if (data.readableBytes() < padding)
                return;
            else
                data.skipBytes(padding);
        }
    }
}

---

From source file:org.mobicents.protocols.ss7.m3ua.impl.message.MessageFactoryImpl.java

License:Open Source License

public M3UAMessageImpl createMessage(ByteBuf message) {
    int dataLen;/*  w  w w.j a  va  2s .c o m*/
    if (message.readableBytes() < 8) {
        return null;
    }

    // obtain message class and type from header
    message.markReaderIndex();
    message.skipBytes(2);
    int messageClass = message.readUnsignedByte();
    int messageType = message.readUnsignedByte();

    // obtain remaining length of the message and prepare buffer
    dataLen = message.readInt() - 8;
    if (message.readableBytes() < dataLen) {
        message.resetReaderIndex();
        return null;
    }

    // construct new message instance
    M3UAMessageImpl messageTemp = this.createMessage(messageClass, messageType);

    // parsing params of this message
    message.markWriterIndex();
    message.writerIndex(message.readerIndex() + dataLen);
    messageTemp.decode(message);
    message.resetWriterIndex();

    return messageTemp;
}

---

From source file:org.neo4j.bolt.v1.transport.BoltV1Dechunker.java

License:Open Source License

public void handle(ByteBuf data) throws IOException {
    while (data.readableBytes() > 0) {
        switch (state) {
        case AWAITING_CHUNK: {
            if (data.readableBytes() >= 2) {
                // Whole header available, read that
                chunkSize = data.readUnsignedShort();
                handleHeader();/*from   ww w .  j a v  a 2s  . c  om*/
            } else {
                // Only one byte available, read that and wait for the second byte
                chunkSize = data.readUnsignedByte() << 8;
                state = State.IN_HEADER;
            }
            break;
        }
        case IN_HEADER: {
            // First header byte read, now we read the next one
            chunkSize = chunkSize | data.readUnsignedByte();
            handleHeader();
            break;
        }
        case IN_CHUNK: {
            if (chunkSize < data.readableBytes()) {
                // Current packet is larger than current chunk, slice of the chunk
                input.append(data.readSlice(chunkSize));
                state = State.AWAITING_CHUNK;
            } else if (chunkSize == data.readableBytes()) {
                // Current packet perfectly maps to current chunk
                input.append(data);
                state = State.AWAITING_CHUNK;
                return;
            } else {
                // Current packet is smaller than the chunk we're reading, split the current chunk itself up
                chunkSize -= data.readableBytes();
                input.append(data);
                return;
            }
            break;
        }
        case CLOSED: {
            // No-op
            return;
        }
        }
    }
}

---

From source file:org.onosproject.lisp.msg.protocols.DefaultLispGenericLocator.java

License:Apache License

/**
 * Deserializes LispGenericLocator message portion.
 *
 * @param byteBuf byte buffer/*from w w  w .  j  a v  a 2 s.co  m*/
 * @return LispGenericLocator
 * @throws LispParseError      LISP message parse error
 * @throws LispReaderException LISP message reader exception
 */
public static LispGenericLocator deserialize(ByteBuf byteBuf) throws LispParseError, LispReaderException {
    // priority -> 8 bits
    byte priority = (byte) byteBuf.readUnsignedByte();

    // weight -> 8 bits
    byte weight = (byte) byteBuf.readUnsignedByte();

    // multi-cast priority -> 8 bits
    byte multicastPriority = (byte) byteBuf.readUnsignedByte();

    // multi-cast weight -> 8 bits
    byte multicastWeight = (byte) byteBuf.readUnsignedByte();

    // let's skip unused flags
    byteBuf.skipBytes(SKIP_UNUSED_FLAG_LENGTH);

    byte flags = byteBuf.readByte();

    // local locator flag -> 1 bit
    boolean localLocator = ByteOperator.getBit(flags, LOCAL_LOCATOR_INDEX);

    // rloc probe flag -> 1 bit
    boolean rlocProbed = ByteOperator.getBit(flags, RLOC_PROBED_INDEX);

    // routed flag -> 1 bit
    boolean routed = ByteOperator.getBit(flags, ROUTED_INDEX);

    LispAfiAddress address = new LispAfiAddress.AfiAddressReader().readFrom(byteBuf);

    return new DefaultLispGenericLocator(priority, weight, multicastPriority, multicastWeight, localLocator,
            rlocProbed, routed, address);
}

---

From source file:org.onosproject.lisp.msg.protocols.DefaultLispInfo.java

License:Apache License

public static LispInfo deserialize(ByteBuf byteBuf) throws LispParseError, LispReaderException {

    if (byteBuf.readerIndex() != 0) {
        return null;
    }//  w w w  .  ja v a  2s .com

    // infoReply -> 1 bit
    boolean infoReplyFlag = ByteOperator.getBit(byteBuf.readByte(), INFO_REPLY_INDEX);

    // let's skip the reserved field
    byteBuf.skipBytes(RESERVED_SKIP_LENGTH_1);

    // nonce -> 64 bits
    long nonce = byteBuf.readLong();

    // keyId -> 16 bits
    short keyId = byteBuf.readShort();

    // authenticationDataLength -> 16 bits
    short authLength = byteBuf.readShort();

    // authData -> depends on the authenticationDataLength
    byte[] authData = new byte[authLength];
    byteBuf.readBytes(authData);

    // ttl -> 32 bits
    int ttl = byteBuf.readInt();

    // let's skip the reserved field
    byteBuf.skipBytes(RESERVED_SKIP_LENGTH_2);

    // mask length -> 8 bits
    short maskLength = byteBuf.readUnsignedByte();

    LispAfiAddress prefix = new LispAfiAddress.AfiAddressReader().readFrom(byteBuf);

    return new DefaultLispInfo(infoReplyFlag, nonce, keyId, authLength, authData, ttl, (byte) maskLength,
            prefix);
}

---

From source file:org.onosproject.lisp.msg.types.lcaf.LispLcafAddress.java

License:Apache License

/**
 * Deserializes common fields from byte buffer.
 *
 * @param byteBuf byte buffer/* w  w w  . j  a  v a2 s. c om*/
 * @return LispLcafAddress with filled common data fields
 */
public static LispLcafAddress deserializeCommon(ByteBuf byteBuf) {

    // let's skip first and second two bytes,
    // because it represents LCAF AFI code
    byteBuf.skipBytes(LCAF_AFI_CODE_BYTE_LENGTH);

    // reserved1 -> 8 bits
    byte reserved1 = (byte) byteBuf.readUnsignedByte();

    // flags -> 8 bits
    byte flag = (byte) byteBuf.readUnsignedByte();

    // LCAF type -> 8 bits
    byte lcafType = (byte) byteBuf.readUnsignedByte();

    // reserved2 -> 8bits
    byte reserved2 = (byte) byteBuf.readUnsignedByte();

    // length -> 16 bits
    short length = (short) byteBuf.readUnsignedShort();

    return new LispLcafAddress(LispCanonicalAddressFormatEnum.valueOf(lcafType), reserved1, reserved2, flag,
            length);
}

---

From source file:org.onosproject.lisp.msg.types.LispLcafAddress.java

License:Apache License

/**
 * Deserializes common fields from byte buffer.
 *
 * @param byteBuf byte buffer//from w  w  w  . j a  v  a2 s  . c o  m
 * @return LispLcafAddress with filled common data fields
 */
public static LispLcafAddress deserializeCommon(ByteBuf byteBuf) {

    // reserved1 -> 8 bits
    byte reserved1 = (byte) byteBuf.readUnsignedByte();

    // flags -> 8 bits
    byte flag = (byte) byteBuf.readUnsignedByte();

    // LCAF type -> 8 bits
    byte lcafType = (byte) byteBuf.readUnsignedByte();

    // reserved2 -> 8bits
    byte reserved2 = (byte) byteBuf.readUnsignedByte();

    // length -> 16 bits
    short length = (short) byteBuf.readUnsignedShort();

    return new LispLcafAddress(LispCanonicalAddressFormatEnum.valueOf(lcafType), reserved1, reserved2, flag,
            length);
}

---

From source file:org.opendaylight.capwap.ODLCapwapControlMessage.java

License:Open Source License

int decode(ByteBuf buf) {
    //ByteBuf bbuf = Unpooled.wrappedBuffer(buf);
    //ByteBuf tmpbuf = bbuf.readerIndex(pos);

    this.msgType = buf.readUnsignedInt();
    this.seqNo = buf.readUnsignedByte();
    this.msgLen = buf.readUnsignedShort();
    this.flags = buf.readUnsignedByte();

    return 0;//from   w ww  . j a  v a 2 s  .co  m
}

---

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