Example usage for io.netty.buffer ByteBuf getUnsignedShort

List of usage examples for io.netty.buffer ByteBuf getUnsignedShort

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Introduction

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

Prototype

public abstract int getUnsignedShort(int index);

Source Link

Document

Gets an unsigned 16-bit short integer at the specified absolute index in this buffer.

Usage

From source file:org.opendaylight.openflowjava.protocol.impl.clients.UdpSimpleClientFramer.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext chc, DatagramPacket msg, List<Object> list) throws Exception {
    ByteBuf bb = msg.content();
    if (bb.readableBytes() < LENGTH_OF_HEADER) {
        LOG.debug("skipping bb - too few data for header: {}", bb.readableBytes());
        return;/*from  ww  w.j  a va 2s.c o m*/
    }

    int length = bb.getUnsignedShort(bb.readerIndex() + LENGTH_INDEX_IN_HEADER);
    if (bb.readableBytes() < length) {
        LOG.debug("skipping bb - too few data for msg: {} < {}", bb.readableBytes(), length);
        return;
    }
    LOG.debug("OF Protocol message received, type:{}", bb.getByte(bb.readerIndex() + 1));

    ByteBuf messageBuffer = bb.slice(bb.readerIndex(), length);
    list.add(messageBuffer);
    messageBuffer.retain();
    bb.skipBytes(length);
}

From source file:org.opendaylight.openflowjava.protocol.impl.core.OFDatagramPacketHandler.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, DatagramPacket msg, List<Object> out) throws Exception {
    LOG.debug("OFDatagramPacketFramer");
    MessageConsumer consumer = UdpConnectionMap.getMessageConsumer(msg.sender());
    if (consumer == null) {
        ConnectionFacade connectionFacade = adapterFactory.createConnectionFacade(ctx.channel(), msg.sender(),
                false);/*from  w  ww  . j a  v  a 2  s  . c  o  m*/
        connectionHandler.onSwitchConnected(connectionFacade);
        connectionFacade.checkListeners();
        UdpConnectionMap.addConnection(msg.sender(), connectionFacade);
    }
    ByteBuf bb = msg.content();
    int readableBytes = bb.readableBytes();
    if (readableBytes < LENGTH_OF_HEADER) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("skipping bytebuf - too few bytes for header: {} < {}", readableBytes, LENGTH_OF_HEADER);
            LOG.debug("bb: {}", ByteBufUtils.byteBufToHexString(bb));
        }
        return;
    }

    int length = bb.getUnsignedShort(bb.readerIndex() + LENGTH_INDEX_IN_HEADER);
    LOG.debug("length of actual message: {}", length);

    if (readableBytes < length) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("skipping bytebuf - too few bytes for msg: {} < {}", readableBytes, length);
            LOG.debug("bytebuffer: {}", ByteBufUtils.byteBufToHexString(bb));
        }
        return;
    }
    LOG.debug("OF Protocol message received, type:{}", bb.getByte(bb.readerIndex() + 1));

    byte version = bb.readByte();
    if ((version == EncodeConstants.OF13_VERSION_ID) || (version == EncodeConstants.OF10_VERSION_ID)) {
        LOG.debug("detected version: {}", version);
        ByteBuf messageBuffer = bb.slice();
        out.add(new VersionMessageUdpWrapper(version, messageBuffer, msg.sender()));
        messageBuffer.retain();
    } else {
        LOG.warn("detected version: {} - currently not supported", version);
    }
    bb.skipBytes(bb.readableBytes());
}

From source file:org.opendaylight.openflowjava.protocol.impl.core.OFFrameDecoder.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext chc, ByteBuf bb, List<Object> list) throws Exception {
    int readableBytes = bb.readableBytes();
    if (readableBytes < LENGTH_OF_HEADER) {
        LOGGER.debug("skipping bb - too few data for header: " + readableBytes);
        return;/* w w  w  .  j  a v  a  2s  .com*/
    }

    int length = bb.getUnsignedShort(bb.readerIndex() + LENGTH_INDEX_IN_HEADER);
    LOGGER.debug("length of actual message: {}", length);

    if (readableBytes < length) {
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("skipping bb - too few data for msg: " + readableBytes + " < " + length);
            LOGGER.debug("bb: " + ByteBufUtils.byteBufToHexString(bb));
        }
        return;
    }
    LOGGER.debug("OF Protocol message received, type:{}", bb.getByte(bb.readerIndex() + 1));

    ByteBuf messageBuffer = bb.slice(bb.readerIndex(), length);
    list.add(messageBuffer);
    messageBuffer.retain();
    bb.skipBytes(length);
}

From source file:org.opendaylight.openflowjava.protocol.impl.deserialization.action.OF13SetFieldActionDeserializer.java

License:Open Source License

@Override
public Action deserialize(ByteBuf input) {
    org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev150203.actions.grouping.ActionBuilder builder = new ActionBuilder();
    int startIndex = input.readerIndex();
    input.skipBytes(2 * EncodeConstants.SIZE_OF_SHORT_IN_BYTES);
    SetFieldCaseBuilder caseBuilder = new SetFieldCaseBuilder();
    SetFieldActionBuilder actionBuilder = new SetFieldActionBuilder();
    int oxmClass = input.getUnsignedShort(input.readerIndex());
    // get oxm_field & hasMask byte and extract the field value
    int oxmField = input.getUnsignedByte(input.readerIndex() + EncodeConstants.SIZE_OF_SHORT_IN_BYTES) >>> 1;
    MatchEntryDeserializerKey key = new MatchEntryDeserializerKey(EncodeConstants.OF13_VERSION_ID, oxmClass,
            oxmField);/* w  w  w .  j  a va2s.  c  o m*/
    if (oxmClass == EncodeConstants.EXPERIMENTER_VALUE) {
        long expId = input.getUnsignedInt(input.readerIndex() + EncodeConstants.SIZE_OF_SHORT_IN_BYTES
                + 2 * EncodeConstants.SIZE_OF_BYTE_IN_BYTES);
        key.setExperimenterId(expId);
    }
    OFDeserializer<MatchEntry> matchDeserializer = registry.getDeserializer(key);
    List<MatchEntry> entry = new ArrayList<>();
    entry.add(matchDeserializer.deserialize(input));
    actionBuilder.setMatchEntry(entry);
    caseBuilder.setSetFieldAction(actionBuilder.build());
    builder.setActionChoice(caseBuilder.build());
    int paddingRemainder = (input.readerIndex() - startIndex) % EncodeConstants.PADDING;
    if (paddingRemainder != 0) {
        input.skipBytes(EncodeConstants.PADDING - paddingRemainder);
    }
    return builder.build();
}

From source file:org.opendaylight.openflowjava.protocol.impl.util.CodeKeyMakerFactory.java

License:Open Source License

/**
 * @param version/*from  ww w .j a va2 s.  c  o m*/
 * @return
 */
public static CodeKeyMaker createMatchEntriesKeyMaker(short version) {
    return new AbstractCodeKeyMaker(version) {
        @Override
        public MessageCodeKey make(ByteBuf input) {
            int oxmClass = input.getUnsignedShort(input.readerIndex());
            int oxmField = input
                    .getUnsignedByte(input.readerIndex() + EncodeConstants.SIZE_OF_SHORT_IN_BYTES) >>> 1;
            MatchEntryDeserializerKey key = new MatchEntryDeserializerKey(getVersion(), oxmClass, oxmField);
            if (oxmClass == EncodeConstants.EXPERIMENTER_VALUE) {
                long expId = input.getUnsignedInt(input.readerIndex() + EncodeConstants.SIZE_OF_SHORT_IN_BYTES
                        + 2 * EncodeConstants.SIZE_OF_BYTE_IN_BYTES);
                key.setExperimenterId(expId);
                return key;
            }
            key.setExperimenterId(null);
            return key;
        }
    };
}

From source file:org.opendaylight.openflowjava.protocol.impl.util.CodeKeyMakerFactory.java

License:Open Source License

/**
 * @param version/*from w w  w. j  a v  a 2  s.  c o  m*/
 * @return
 */
public static CodeKeyMaker createActionsKeyMaker(short version) {
    return new AbstractCodeKeyMaker(version) {
        @Override
        public MessageCodeKey make(ByteBuf input) {
            int type = input.getUnsignedShort(input.readerIndex());
            if (type == EncodeConstants.EXPERIMENTER_VALUE) {
                Long expId = input
                        .getUnsignedInt(input.readerIndex() + 2 * EncodeConstants.SIZE_OF_SHORT_IN_BYTES);
                return new ExperimenterActionDeserializerKey(getVersion(), expId);
            }
            ActionDeserializerKey actionDeserializerKey = new ActionDeserializerKey(getVersion(), type, null);
            return actionDeserializerKey;
        }
    };
}

From source file:org.opendaylight.openflowjava.protocol.impl.util.CodeKeyMakerFactory.java

License:Open Source License

/**
 * @param version//from  w w w .ja va2 s .c  o m
 * @return
 */
public static CodeKeyMaker createInstructionsKeyMaker(short version) {
    return new AbstractCodeKeyMaker(version) {
        @Override
        public MessageCodeKey make(ByteBuf input) {
            int type = input.getUnsignedShort(input.readerIndex());
            if (type == EncodeConstants.EXPERIMENTER_VALUE) {
                Long expId = input
                        .getUnsignedInt(input.readerIndex() + 2 * EncodeConstants.SIZE_OF_SHORT_IN_BYTES);
                return new ExperimenterInstructionDeserializerKey(getVersion(), expId);
            }
            return new InstructionDeserializerKey(getVersion(), type, null);
        }
    };
}

From source file:org.opendaylight.protocol.bmp.impl.message.PeerUpHandler.java

License:Open Source License

private static int getBgpMessageLength(final ByteBuf buffer) {
    return buffer.getUnsignedShort(buffer.readerIndex() + MessageUtil.MARKER_LENGTH);
}

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

License:Apache License

@Override
protected Object decode(ChannelHandlerContext ctx, ByteBuf buf) throws Exception {

    if (buf.readableBytes() < MESSAGE_MINIMUM_LENGTH) {
        return null;
    }//w  ww  . j  ava 2  s .  c o m

    if (buf.getUnsignedShort(buf.readerIndex()) == 0xFAF8) {
        ByteBuf heartbeat = buf.readRetainedSlice(12);
        if (ctx != null && ctx.channel() != null) {
            ctx.channel().writeAndFlush(new NetworkMessage(heartbeat, ctx.channel().remoteAddress()));
        }
    }

    return super.decode(ctx, buf);
}

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

License:Apache License

@Override
protected Object decode(ChannelHandlerContext ctx, Channel channel, ByteBuf buf) throws Exception {

    // Skip Alive message
    while (buf.isReadable() && Character.isDigit(buf.getByte(buf.readerIndex()))) {
        buf.readByte();/*from  www.j  av a  2  s  .  c  om*/
    }

    // Check minimum length
    if (buf.readableBytes() < 11) {
        return null;
    }

    // Read flags
    int version = buf.getUnsignedByte(buf.readerIndex() + 1);
    int offset = 1 + 1 + 3;
    if ((version & 0x80) != 0) {
        offset += 4;
    }

    // Get data length
    int length = buf.getUnsignedShort(buf.readerIndex() + offset);
    offset += 2;
    if ((version & 0x40) != 0) {
        offset += 3;
    }
    length += offset; // add header

    // Return buffer
    if (buf.readableBytes() >= length) {
        return buf.readRetainedSlice(length);
    }

    return null;
}