Example usage for io.netty.buffer ByteBuf readSlice

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

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Introduction

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

Prototype

public abstract ByteBuf readSlice(int length);

Source Link

Document

Returns a new slice of this buffer's sub-region starting at the current readerIndex and increases the readerIndex by the size of the new slice (= length ).

Usage

From source file:org.opendaylight.protocol.bgp.evpn.impl.nlri.EthSegRParser.java

License:Open Source License

@Override
public EvpnChoice parseEvpn(final ByteBuf buffer) {
    Preconditions.checkArgument(/*from  www.j  a  v  a 2  s . c  om*/
            buffer.readableBytes() == CONTENT_LENGTH || buffer.readableBytes() == CONTENT_LENGTH2,
            "Wrong length of array of bytes. Passed: %s ;", buffer);

    final Esi esi = SimpleEsiTypeRegistry.getInstance().parseEsi(buffer.readSlice(ESI_SIZE));
    final IpAddress ip = Preconditions.checkNotNull(parseOrigRouteIp(buffer));

    final EsRouteBuilder builder = new EsRouteBuilder().setEsi(esi).setOrigRouteIp(ip);
    return new EsRouteCaseBuilder().setEsRoute(builder.build()).build();
}

From source file:org.opendaylight.protocol.bgp.evpn.impl.nlri.EvpnNlriParser.java

License:Open Source License

@Nullable
private List<EvpnDestination> parseNlri(final ByteBuf nlri) {
    if (!nlri.isReadable()) {
        return null;
    }//from ww  w  .j a  va 2s. c  o m
    final List<EvpnDestination> dests = new ArrayList<>();

    while (nlri.isReadable()) {
        final EvpnDestinationBuilder builder = new EvpnDestinationBuilder();
        final NlriType type = NlriType.forValue(nlri.readUnsignedByte());
        final int length = nlri.readUnsignedByte();
        final ByteBuf nlriBuf = nlri.readSlice(length);
        builder.setRouteDistinguisher(parseRouteDistinguisher(nlriBuf));
        builder.setEvpnChoice(SimpleEvpnNlriRegistry.getInstance().parseEvpn(type, nlriBuf));
        dests.add(builder.build());
    }
    return dests;
}

From source file:org.opendaylight.protocol.bgp.evpn.impl.nlri.MACIpAdvRParser.java

License:Open Source License

@Override
public EvpnChoice parseEvpn(final ByteBuf buffer) {
    final Esi esi = SimpleEsiTypeRegistry.getInstance().parseEsi(buffer.readSlice(ESI_SIZE));
    final EthernetTagId eti = new EthernetTagIdBuilder().setVlanId(buffer.readUnsignedInt()).build();
    buffer.skipBytes(1);/*www.j ava  2  s. c  om*/
    final MacAddress mac = IetfYangUtil.INSTANCE.macAddressFor(ByteArray.readBytes(buffer, MAC_ADDRESS_LENGTH));
    final IpAddress ip = parseIp(buffer);
    final MplsLabel label1 = mplsLabelForByteBuf(buffer);
    MplsLabel label2;
    if (buffer.readableBytes() > 0) {
        label2 = mplsLabelForByteBuf(buffer);
    } else {
        label2 = null;
    }
    final MacIpAdvRouteBuilder builder = new MacIpAdvRouteBuilder().setEsi(esi).setEthernetTagId(eti)
            .setMacAddress(mac).setIpAddress(ip).setMplsLabel1(label1).setMplsLabel2(label2);
    return new MacIpAdvRouteCaseBuilder().setMacIpAdvRoute(builder.build()).build();
}

From source file:org.opendaylight.protocol.bgp.evpn.spi.pojo.SimpleEsiTypeRegistry.java

License:Open Source License

@Override
public Esi parseEsi(final ByteBuf buffer) {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    Preconditions.checkArgument(buffer.readableBytes() == CONTENT_LENGTH,
            "Wrong length of array of bytes. Passed: " + buffer.readableBytes() + ";");

    final EsiParser parser = this.handlers.getParser(EsiType.forValue(buffer.readByte()).getIntValue());
    if (parser == null) {
        return null;
    }//from  w  w w  . jav a  2s.c  om
    return parser.parseEsi(buffer.readSlice(ESI_LENGTH));
}

From source file:org.opendaylight.protocol.bgp.labeled.unicast.LUNlriParser.java

License:Open Source License

public static List<LabelStack> parseLabel(final ByteBuf nlri) {
    if (!nlri.isReadable()) {
        return null;
    }/*from  www  .j  av a2 s  . co m*/
    final List<LabelStack> labels = new ArrayList<>();
    boolean bottomBit;
    do {
        final ByteBuf slice = nlri.readSlice(LABEL_LENGTH);
        bottomBit = MplsLabelUtil.getBottomBit(slice);
        labels.add(new LabelStackBuilder().setLabelValue(MplsLabelUtil.mplsLabelForByteBuf(slice)).build());
    } while (!bottomBit);
    return labels;
}

From source file:org.opendaylight.protocol.bgp.linkstate.attribute.LinkAttributesParser.java

License:Open Source License

private static void parseUnreservedBandwidth(final ByteBuf value, final LinkAttributesBuilder builder) {
    final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.link.state.UnreservedBandwidth> unreservedBandwidth = new ArrayList<>(
            UNRESERVED_BW_COUNT);/*from  ww w .  j av  a 2 s .com*/
    for (int i = 0; i < UNRESERVED_BW_COUNT; i++) {
        final ByteBuf v = value.readSlice(BANDWIDTH_LENGTH);
        unreservedBandwidth.add(new UnreservedBandwidthBuilder()
                .setBandwidth(new Bandwidth(ByteArray.readAllBytes(v))).setPriority((short) i).build());
    }
    builder.setUnreservedBandwidth(unreservedBandwidth);
    LOG.debug("Parsed Unreserved Bandwidth {}", builder.getUnreservedBandwidth());
}

From source file:org.opendaylight.protocol.bgp.linkstate.attribute.LinkstateAttributeParser.java

License:Open Source License

private static Multimap<Integer, ByteBuf> getAttributesMap(final ByteBuf buffer) {
    /*/*  w w w.j a  v  a2s. c om*/
     * e.g. IS-IS Area Identifier TLV can occur multiple times
     */
    final Multimap<Integer, ByteBuf> map = HashMultimap.create();
    while (buffer.isReadable()) {
        final int type = buffer.readUnsignedShort();
        final int length = buffer.readUnsignedShort();
        final ByteBuf value = buffer.readSlice(length);
        map.put(type, value);
    }
    return map;
}

From source file:org.opendaylight.protocol.bgp.linkstate.attribute.sr.BindingSidLabelParser.java

License:Open Source License

private static List<BindingSubTlvs> parseBindingSubTlvs(final ByteBuf buffer, final ProtocolId protocolId) {
    final List<BindingSubTlvs> subTlvs = new ArrayList<BindingSubTlvs>();
    while (buffer.isReadable()) {
        final int type = buffer.readUnsignedShort();
        final int length = buffer.readUnsignedShort();
        final ByteBuf slice = buffer.readSlice(length);
        final BindingSubTlvsBuilder builder = new BindingSubTlvsBuilder();
        parseSubTlv(type, slice, builder, protocolId);
        subTlvs.add(builder.build());/*from ww w  . j a  va 2  s. co m*/
    }
    return subTlvs;
}

From source file:org.opendaylight.protocol.bgp.linkstate.attribute.sr.RangeTlvParser.java

License:Open Source License

private static List<SubTlvs> parseRangeSubTlvs(final ByteBuf buffer, final ProtocolId protocolId) {
    final List<SubTlvs> subTlvs = new ArrayList<>();
    while (buffer.isReadable()) {
        final SubTlvsBuilder subTlv = new SubTlvsBuilder();
        RangeSubTlv subTlvCase = null;/*ww w. j  a v a2 s. c  o  m*/
        final int type = buffer.readUnsignedShort();
        final int length = buffer.readUnsignedShort();
        switch (type) {
        case PrefixAttributesParser.PREFIX_SID:
            subTlvCase = new PrefixSidTlvCaseBuilder(
                    SrPrefixAttributesParser.parseSrPrefix(buffer.readSlice(length), protocolId)).build();
            break;
        case PrefixAttributesParser.BINDING_SID:
            subTlvCase = new BindingSidTlvCaseBuilder(
                    BindingSidLabelParser.parseBindingSidLabel(buffer.readSlice(length), protocolId)).build();
            break;
        case SidLabelIndexParser.SID_TYPE:
            subTlvCase = new SidLabelTlvCaseBuilder().setSidLabelIndex(
                    SidLabelIndexParser.parseSidLabelIndex(Size.forValue(length), buffer.readSlice(length)))
                    .build();
            break;
        default:
            LOG.info("Unknown type of range sub-tlv: {}", type);
            buffer.skipBytes(length);
            continue;
        }
        subTlvs.add(subTlv.setRangeSubTlv(subTlvCase).build());
    }
    return subTlvs;
}

From source file:org.opendaylight.protocol.bgp.linkstate.attribute.TeLspAttributesParser.java

License:Open Source License

public static LinkStateAttribute parseTeLspAttributes(final RSVPTeObjectRegistry registry,
        final ByteBuf attributes) throws BGPParsingException {

    final TeLspAttributesBuilder builder = new TeLspAttributesBuilder();
    LOG.trace("Initiated parsing TE LSP Objects.");
    while (attributes.isReadable()) {
        final int length = attributes.readUnsignedShort();
        final int classNum = attributes.readUnsignedByte();
        final int cType = attributes.readUnsignedByte();
        final ByteBuf value = attributes.readSlice(length);
        try {/*w  w  w  .j a va  2  s  . c o m*/
            addObject(builder, registry.parseRSPVTe(classNum, cType, value));
        } catch (final RSVPParsingException e) {
            LOG.debug("Parsering TE LSP Object error. class number: {} cType: {} value: {}", classNum, cType,
                    value, e);
            throw new BGPParsingException(e.getMessage());
        }
    }
    LOG.trace("Finished parsing TE LSP Objects.");
    return new TeLspAttributesCaseBuilder().setTeLspAttributes(builder.build()).build();
}