Example usage for io.netty.buffer ByteBuf readUnsignedByte

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

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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.opendaylight.protocol.bgp.parser.spi.pojo.SimpleExtendedCommunityRegistry.java

License:Open Source License

@Override
public ExtendedCommunities parseExtendedCommunity(final ByteBuf buffer)
        throws BGPDocumentedException, BGPParsingException {
    final short type = buffer.readUnsignedByte();
    final short subtype = buffer.readUnsignedByte();
    final ExtendedCommunityParser parser = this.handlers.getParser(createKey(type, subtype));
    if (parser == null) {
        buffer.skipBytes(EXTENDED_COMMUNITY_LENGTH);
        LOG.info("Skipping unknown extended-community type/sub-type {}/{}.", type, subtype);
        return null;
    }/*w  w w  .j av a2 s  . co  m*/
    return new ExtendedCommunitiesBuilder().setTransitive(isTransitive(type))
            .setExtendedCommunity(parser.parseExtendedCommunity(buffer)).build();
}

From source file:org.opendaylight.protocol.bgp.parser.spi.pojo.SimpleNlriRegistry.java

License:Open Source License

private Class<? extends SubsequentAddressFamily> getSafi(final ByteBuf buffer) throws BGPParsingException {
    final int safiVal = buffer.readUnsignedByte();
    final Class<? extends SubsequentAddressFamily> safi = this.safiReg.classForFamily(safiVal);
    if (safi == null) {
        throw new BGPParsingException("Subsequent Address Family Identifier: '" + safiVal + "' not supported.");
    }/*from  www.  j  ava  2 s .c o m*/
    return safi;
}

From source file:org.opendaylight.protocol.bgp.parser.spi.pojo.SimpleNlriRegistry.java

License:Open Source License

@Override
public MpReachNlri parseMpReach(final ByteBuf buffer, final PeerSpecificParserConstraint constraint)
        throws BGPParsingException {
    final MpReachNlriBuilder builder = new MpReachNlriBuilder();
    final Class<? extends AddressFamily> afi = getAfi(buffer);
    final Class<? extends SubsequentAddressFamily> safi = getSafi(buffer);
    builder.setAfi(afi);/* w  ww .  ja  v a2s .c  om*/
    builder.setSafi(safi);

    final BgpTableType key = createKey(builder.getAfi(), builder.getSafi());

    final int nextHopLength = buffer.readUnsignedByte();
    if (nextHopLength != 0) {
        final NextHopParserSerializer nextHopParser = this.nextHopParsers.get(key);
        if (nextHopParser != null) {
            builder.setCNextHop(nextHopParser.parseNextHop(buffer.readSlice(nextHopLength)));
        } else {
            builder.setCNextHop(NextHopUtil.parseNextHop(buffer.readSlice(nextHopLength)));
            LOG.warn("NexHop Parser/Serializer for AFI/SAFI ({},{}) not bound", afi, safi);
        }
    }
    buffer.skipBytes(RESERVED);

    final ByteBuf nlri = buffer.slice();
    final NlriParser parser = this.handlers.get(key);
    if (parser == null) {
        LOG.warn(PARSER_NOT_FOUND, key);
    } else {
        parser.parseNlri(nlri, builder, constraint);
    }
    return builder.build();
}

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

License:Open Source License

@Override
public Notification parseMessageBody(final ByteBuf bytes) throws BmpDeserializationException {
    final PeerDownNotificationBuilder peerDown = new PeerDownNotificationBuilder()
            .setPeerHeader(parsePerPeerHeader(bytes));
    final Reason reason = Reason.forValue(bytes.readUnsignedByte());
    if (reason != null) {
        switch (reason) {
        case REASON_ONE:
            peerDown.setLocalSystemClosed(true);
            peerDown.setData(parseBgpNotificationMessage(bytes));
            break;
        case REASON_TWO:
            peerDown.setLocalSystemClosed(true);
            peerDown.setData(new FsmEventCodeBuilder().setFsmEventCode(bytes.readUnsignedShort()).build());
            break;
        case REASON_THREE:
            peerDown.setLocalSystemClosed(false);
            peerDown.setData(parseBgpNotificationMessage(bytes));
            break;
        case REASON_FOUR:
            peerDown.setLocalSystemClosed(false);
            peerDown.setData(parseBgpNotificationMessage(bytes));
            break;
        case REASON_FIVE:
            peerDown.setLocalSystemClosed(false);
            break;
        default://from  ww  w  .  j a  va  2s.  co m
            break;
        }
    }

    return peerDown.build();
}

From source file:org.opendaylight.protocol.bmp.impl.tlv.StatType009TlvHandler.java

License:Open Source License

@Override
public Tlv parseTlv(final ByteBuf buffer) throws BmpDeserializationException {
    if (buffer == null) {
        return null;
    }/*from www . j av a 2s  .c  o  m*/
    return new PerAfiSafiAdjRibInTlvBuilder()
            .setAfi(this.afiRegistry.classForFamily(buffer.readUnsignedShort()))
            .setSafi(this.safiRegistry.classForFamily(buffer.readUnsignedByte()))
            .setCount(new Gauge64(new BigInteger(ByteArray.readAllBytes(buffer)))).build();
}

From source file:org.opendaylight.protocol.bmp.impl.tlv.StatType010TlvHandler.java

License:Open Source License

@Override
public Tlv parseTlv(final ByteBuf buffer) throws BmpDeserializationException {
    if (buffer == null) {
        return null;
    }//from  w w w. ja  va 2s . c o  m
    return new PerAfiSafiLocRibTlvBuilder().setAfi(this.afiRegistry.classForFamily(buffer.readUnsignedShort()))
            .setSafi(this.safiRegistry.classForFamily(buffer.readUnsignedByte()))
            .setCount(new Gauge64(new BigInteger(ByteArray.readAllBytes(buffer)))).build();
}

From source file:org.opendaylight.protocol.bmp.spi.registry.SimpleBmpMessageRegistry.java

License:Open Source License

private int parseMessageHeader(final ByteBuf buffer) throws BmpDeserializationException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes cannot be null or empty.");
    Preconditions.checkArgument(buffer.readableBytes() >= COMMON_HEADER_LENGTH,
            "Too few bytes in passed array. Passed: %s. Expected: >= %s.", buffer.readableBytes(),
            COMMON_HEADER_LENGTH);//from  w ww.  j a va  2s. c  om
    final short messageVersion = buffer.readUnsignedByte();
    if (messageVersion != BMP_VERSION) {
        throw new BmpDeserializationException(
                "Unsuppoted BMP version. Passed: " + messageVersion + "; Expected: " + BMP_VERSION + ".");
    }
    final long messageLength = buffer.readUnsignedInt();
    final short msgType = buffer.readUnsignedByte();
    if (messageLength - COMMON_HEADER_LENGTH != buffer.readableBytes()) {
        throw new BmpDeserializationException("Size doesn't match size specified in header. Passed: "
                + buffer.readableBytes() + COMMON_HEADER_LENGTH + "; Expected: " + messageLength + ".");
    }
    return msgType;
}

From source file:org.opendaylight.protocol.pcep.ietf.stateful07.Stateful07LspObjectParser.java

License:Open Source License

@Override
public Lsp parseObject(final ObjectHeader header, final ByteBuf bytes) throws PCEPDeserializerException {
    Preconditions.checkArgument(bytes != null && bytes.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    final LspBuilder builder = new LspBuilder();
    builder.setIgnore(header.isIgnore());
    builder.setProcessingRule(header.isProcessingRule());
    final int[] plspIdRaw = new int[] { bytes.readUnsignedByte(), bytes.readUnsignedByte(),
            bytes.getUnsignedByte(2), };
    builder.setPlspId(new PlspId((long) ((plspIdRaw[0] << FLAGS_SIZE) | (plspIdRaw[1] << FOUR_BITS_SHIFT)
            | (plspIdRaw[2] >> FOUR_BITS_SHIFT))));
    parseFlags(builder, bytes);/*from www .  ja v a 2s  .c  om*/
    final TlvsBuilder b = new TlvsBuilder();
    parseTlvs(b, bytes.slice());
    builder.setTlvs(b.build());
    return builder.build();
}

From source file:org.opendaylight.protocol.pcep.ietf.stateful07.Stateful07RSVPErrorSpecTlvParser.java

License:Open Source License

@Override
public RsvpErrorSpec parseTlv(final ByteBuf buffer) throws PCEPDeserializerException {
    if (buffer == null) {
        return null;
    }/* w  w  w  .j  av  a  2  s. co m*/
    // throw away contents of length field
    buffer.readUnsignedShort();
    final int classNum = buffer.readUnsignedByte();
    final int classType = buffer.readUnsignedByte();
    ErrorType errorType = null;
    if (classNum == RSVP_ERROR_CLASS_NUM) {
        errorType = parseRsvp(classType, buffer.slice());
    } else if (classNum == USER_ERROR_CLASS_NUM && classType == USER_ERROR_CLASS_TYPE) {
        errorType = parseUserError(buffer.slice());
    }
    return new RsvpErrorSpecBuilder().setErrorType(errorType).build();
}

From source file:org.opendaylight.protocol.pcep.ietf.stateful07.Stateful07RSVPErrorSpecTlvParser.java

License:Open Source License

private UserCase parseUserError(final ByteBuf buffer) {
    final UserErrorBuilder error = new UserErrorBuilder();
    error.setEnterprise(new EnterpriseNumber(buffer.readUnsignedInt()));
    error.setSubOrg(buffer.readUnsignedByte());
    final int errDescrLength = buffer.readUnsignedByte();
    error.setValue(buffer.readUnsignedShort());
    error.setDescription(ByteArray.bytesToHRString(ByteArray.readBytes(buffer, errDescrLength)));
    // if we have any subobjects, place the implementation here
    return new UserCaseBuilder().setUserError(error.build()).build();
}