Example usage for io.netty.buffer ByteBuf getByte

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

  1. HOME
  2. Java
  3. io.netty
  4. io.netty.buffer.*
  5. ByteBuf
  6. getByte

Introduction

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

Prototype

public abstract byte getByte(int index);

Source Link

Document

Gets a byte 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;/* w  w w  .ja  va  2  s.  co  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);/* www.j av  a  2  s  .  c om*/
        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;/*from w  w w  .ja  va2 s  .  c  o m*/
    }

    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.ovsdb.lib.jsonrpc.JsonRpcDecoder.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf buf, List<Object> out) throws Exception {

    logger.trace("readable bytes {}, records read {}, incomplete record bytes {}", buf.readableBytes(),
            recordsRead, lastRecordBytes);

    if (lastRecordBytes == 0) {
        if (buf.readableBytes() < 4) {
            return; //wait for more data
        }/*from   w  w w .j  a v a  2  s  . c o m*/

        skipSpaces(buf);

        byte[] buff = new byte[4];
        buf.getBytes(buf.readerIndex(), buff);
        ByteSourceJsonBootstrapper strapper = new ByteSourceJsonBootstrapper(jacksonIOContext, buff, 0, 4);
        JsonEncoding jsonEncoding = strapper.detectEncoding();
        if (!JsonEncoding.UTF8.equals(jsonEncoding)) {
            throw new InvalidEncodingException(jsonEncoding.getJavaName(), "currently only UTF-8 is supported");
        }
    }

    int index = lastRecordBytes + buf.readerIndex();

    for (; index < buf.writerIndex(); index++) {
        switch (buf.getByte(index)) {
        case '{':
            if (!inS) {
                leftCurlies++;
            }
            break;
        case '}':
            if (!inS) {
                rightCurlies++;
            }
            break;
        case '"':
            if (buf.getByte(index - 1) != '\\') {
                inS = !inS;
            }
            break;
        default:
            break;
        }

        if (leftCurlies != 0 && leftCurlies == rightCurlies && !inS) {
            ByteBuf slice = buf.readSlice(1 + index - buf.readerIndex());
            JsonParser jp = jacksonJsonFactory.createParser(new ByteBufInputStream(slice));
            JsonNode root = jp.readValueAsTree();
            out.add(root);
            leftCurlies = rightCurlies = lastRecordBytes = 0;
            recordsRead++;
            break;
        }

        if (index - buf.readerIndex() >= maxFrameLength) {
            fail(ctx, index - buf.readerIndex());
        }
    }

    // end of stream, save the incomplete record index to avoid reexamining the whole on next run
    if (index >= buf.writerIndex()) {
        lastRecordBytes = buf.readableBytes();
        return;
    }
}

From source file:org.opendaylight.ovsdb.lib.jsonrpc.JsonRpcDecoder.java

License:Open Source License

private static void skipSpaces(ByteBuf byteBuf) throws IOException {
    while (byteBuf.isReadable()) {
        int ch = byteBuf.getByte(byteBuf.readerIndex()) & 0xFF;
        if (!(ch == ' ' || ch == '\r' || ch == '\n' || ch == '\t')) {
            return;
        } else {/* www .  j av  a 2s.c  o  m*/
            byteBuf.readByte(); //move the read index
        }
    }
}

From source file:org.opendaylight.protocol.bgp.linkstate.impl.tlvs.RouterIdTlvParser.java

License:Open Source License

@Override
public CRouterIdentifier parseTlvBody(final ByteBuf value) {
    if (value.readableBytes() == ISO_SYSTEM_ID_LENGTH
            || (value.readableBytes() == ISO_SYSTEM_ID_LENGTH + PSN_LENGTH
                    && value.getByte(ISO_SYSTEM_ID_LENGTH) == 0)) {
        return new IsisNodeCaseBuilder().setIsisNode(new IsisNodeBuilder()
                .setIsoSystemId(new IsoSystemIdentifier(ByteArray.readBytes(value, ISO_SYSTEM_ID_LENGTH)))
                .build()).build();//from   www.jav  a 2 s .c om
    }
    if (value.readableBytes() == ISO_SYSTEM_ID_LENGTH + PSN_LENGTH) {
        final IsIsRouterIdentifier iri = new IsIsRouterIdentifierBuilder()
                .setIsoSystemId(new IsoSystemIdentifier(ByteArray.readBytes(value, ISO_SYSTEM_ID_LENGTH)))
                .build();
        return new IsisPseudonodeCaseBuilder().setIsisPseudonode(new IsisPseudonodeBuilder()
                .setIsIsRouterIdentifier(iri).setPsn((short) value.readByte()).build()).build();
    }
    if (value.readableBytes() == OSPF_ROUTER_ID_LENGTH) {
        return new OspfNodeCaseBuilder()
                .setOspfNode(new OspfNodeBuilder().setOspfRouterId(value.readUnsignedInt()).build()).build();

    }
    if (value.readableBytes() == OSPF_PSEUDONODE_ROUTER_ID_LENGTH) {
        return new OspfPseudonodeCaseBuilder()
                .setOspfPseudonode(new OspfPseudonodeBuilder().setOspfRouterId(value.readUnsignedInt())
                        .setLanInterface(new OspfInterfaceIdentifier(value.readUnsignedInt())).build())
                .build();
    }
    return null;
}

From source file:org.opendaylight.protocol.bgp.linkstate.nlri.NodeNlriParser.java

License:Open Source License

private static CRouterIdentifier parseRouterId(final ByteBuf value) throws BGPParsingException {
    if (value.readableBytes() == ISO_SYSTEM_ID_LENGTH
            || (value.readableBytes() == ISO_SYSTEM_ID_LENGTH + PSN_LENGTH
                    && value.getByte(ISO_SYSTEM_ID_LENGTH) == 0)) {
        return new IsisNodeCaseBuilder().setIsisNode(new IsisNodeBuilder()
                .setIsoSystemId(new IsoSystemIdentifier(ByteArray.readBytes(value, ISO_SYSTEM_ID_LENGTH)))
                .build()).build();/*from   ww  w . j  ava2s  . co m*/
    }
    if (value.readableBytes() == ISO_SYSTEM_ID_LENGTH + PSN_LENGTH) {
        final IsIsRouterIdentifier iri = new IsIsRouterIdentifierBuilder()
                .setIsoSystemId(new IsoSystemIdentifier(ByteArray.readBytes(value, ISO_SYSTEM_ID_LENGTH)))
                .build();
        return new IsisPseudonodeCaseBuilder().setIsisPseudonode(new IsisPseudonodeBuilder()
                .setIsIsRouterIdentifier(iri).setPsn((short) value.readByte()).build()).build();
    }
    if (value.readableBytes() == OSPF_ROUTER_ID_LENGTH) {
        return new OspfNodeCaseBuilder()
                .setOspfNode(new OspfNodeBuilder().setOspfRouterId(value.readUnsignedInt()).build()).build();
    }
    if (value.readableBytes() == OSPF_PSEUDONODE_ROUTER_ID_LENGTH) {
        return new OspfPseudonodeCaseBuilder()
                .setOspfPseudonode(new OspfPseudonodeBuilder().setOspfRouterId(value.readUnsignedInt())
                        .setLanInterface(new OspfInterfaceIdentifier(value.readUnsignedInt())).build())
                .build();
    }
    throw new BGPParsingException("Router Id of invalid length " + value.readableBytes());
}

From source file:org.opendaylight.protocol.bgp.parser.impl.message.open.GracefulCapabilityHandler.java

License:Open Source License

@Override
public CParameters parseCapability(final ByteBuf buffer) throws BGPDocumentedException, BGPParsingException {
    final GracefulRestartCapabilityBuilder cb = new GracefulRestartCapabilityBuilder();

    final int flagBits = (buffer.getByte(0) >> RESTART_FLAGS_SIZE);
    cb.setRestartFlags(new RestartFlags((flagBits & Byte.SIZE) != 0));

    final int timer = ((buffer.readUnsignedByte() & TIMER_TOPBITS_MASK) << Byte.SIZE)
            + buffer.readUnsignedByte();
    cb.setRestartTime(timer);//from www  . j a va 2  s . c  o m

    final List<Tables> tables = new ArrayList<>();
    while (buffer.readableBytes() != 0) {
        final int afiVal = buffer.readShort();
        final Class<? extends AddressFamily> afi = this.afiReg.classForFamily(afiVal);
        if (afi == null) {
            LOG.debug("Ignoring GR capability for unknown address family {}", afiVal);
            buffer.skipBytes(PER_AFI_SAFI_SIZE - 2);
            continue;
        }
        final int safiVal = buffer.readUnsignedByte();
        final Class<? extends SubsequentAddressFamily> safi = this.safiReg.classForFamily(safiVal);
        if (safi == null) {
            LOG.debug("Ignoring GR capability for unknown subsequent address family {}", safiVal);
            buffer.skipBytes(1);
            continue;
        }
        final int flags = buffer.readUnsignedByte();
        tables.add(new TablesBuilder().setAfi(afi).setSafi(safi)
                .setAfiFlags(new AfiFlags((flags & AFI_FLAG_FORWARDING_STATE) != 0)).build());
    }
    cb.setTables(tables);
    return new CParametersBuilder().addAugmentation(CParameters1.class,
            new CParameters1Builder().setGracefulRestartCapability(cb.build()).build()).build();
}

From source file:org.opendaylight.protocol.pcep.impl.subobject.EROExplicitExclusionRouteSubobjectParser.java

License:Open Source License

private List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobject> parseSubobject(
        final ByteBuf buffer) throws PCEPDeserializerException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobject> subs = new ArrayList<>();
    while (buffer.isReadable()) {
        final boolean mandatory = ((buffer.getByte(buffer.readerIndex()) & (1 << Values.FIRST_BIT_OFFSET)) != 0)
                ? true//from   w  w w  . j  a v a 2 s.  c o m
                : false;
        final int type = (buffer.readUnsignedByte() & Values.BYTE_MAX_VALUE_BYTES)
                & ~(1 << Values.FIRST_BIT_OFFSET);
        final int length = buffer.readUnsignedByte() - HEADER_LENGTH;
        if (length > buffer.readableBytes()) {
            throw new PCEPDeserializerException(
                    "Wrong length specified. Passed: " + length + "; Expected: <= " + buffer.readableBytes());
        }
        subs.add(this.registry.parseSubobject(type, buffer.readSlice(length), mandatory));
    }
    return subs;
}

From source file:org.opendaylight.protocol.rsvp.parser.impl.subobject.ero.EROExplicitExclusionRouteSubobjectParser.java

License:Open Source License

private List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.exclude.route.object.exclude.route.object.SubobjectContainer> parseSubobject(
        final ByteBuf buffer) throws RSVPParsingException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.exclude.route.object.exclude.route.object.SubobjectContainer> subs = new ArrayList<>();
    while (buffer.isReadable()) {
        final boolean mandatory = ((buffer.getByte(buffer.readerIndex()) & (1 << Values.FIRST_BIT_OFFSET)) != 0)
                ? true// w  ww. j av  a  2  s . c o m
                : false;
        final int type = (buffer.readUnsignedByte() & Values.BYTE_MAX_VALUE_BYTES)
                & ~(1 << Values.FIRST_BIT_OFFSET);
        final int length = buffer.readUnsignedByte() - HEADER_LENGTH;
        if (length > buffer.readableBytes()) {
            throw new RSVPParsingException(
                    "Wrong length specified. Passed: " + length + "; Expected: <= " + buffer.readableBytes());
        }
        subs.add(this.registry.parseSubobject(type, buffer.readSlice(length), mandatory));
    }
    return subs;
}