Examples with LabelStack org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.labeled.unicast.rev171207.labeled.unicast.LabelStack used on opensource projects

Example 1 with LabelStack

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.labeled.unicast.rev171207.labeled.unicast.LabelStack in project bgpcep by opendaylight.

the class AbstractLabeledUnicastRIBSupport method extractLabel.

public static List<LabelStack> extractLabel(final DataContainerNode<? extends PathArgument> route, final NodeIdentifier labelStackNid, final NodeIdentifier labelValueNid) {
    final List<LabelStack> labels = new ArrayList<>();
    final Optional<DataContainerChild<? extends PathArgument, ?>> labelStacks = route.getChild(labelStackNid);
    if (labelStacks.isPresent()) {
        for (final UnkeyedListEntryNode label : ((UnkeyedListNode) labelStacks.get()).getValue()) {
            final Optional<DataContainerChild<? extends PathArgument, ?>> labelStack = label.getChild(labelValueNid);
            if (labelStack.isPresent()) {
                final LabelStackBuilder labelStackbuilder = new LabelStackBuilder();
                labelStackbuilder.setLabelValue(new MplsLabel((Long) labelStack.get().getValue()));
                labels.add(labelStackbuilder.build());
            }
        }
    }
    return labels;
}

Example 2 with LabelStack

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.labeled.unicast.rev171207.labeled.unicast.LabelStack in project bgpcep by opendaylight.

the class LUNlriParser method parseNlri.

private static List<CLabeledUnicastDestination> parseNlri(final ByteBuf nlri, final Class<? extends AddressFamily> afi, final boolean mPathSupported) {
    if (!nlri.isReadable()) {
        return null;
    }
    final List<CLabeledUnicastDestination> dests = new ArrayList<>();
    while (nlri.isReadable()) {
        final CLabeledUnicastDestinationBuilder builder = new CLabeledUnicastDestinationBuilder();
        if (mPathSupported) {
            builder.setPathId(PathIdUtil.readPathId(nlri));
        }
        final short length = nlri.readUnsignedByte();
        final List<LabelStack> labels = parseLabel(nlri);
        builder.setLabelStack(labels);
        final int labelNum = labels != null ? labels.size() : 1;
        final int prefixLen = length - (LABEL_LENGTH * Byte.SIZE * labelNum);
        builder.setPrefix(parseIpPrefix(nlri, prefixLen, afi));
        dests.add(builder.build());
    }
    return dests;
}

Example 3 with LabelStack

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.labeled.unicast.rev171207.labeled.unicast.LabelStack in project bgpcep by opendaylight.

the class LUNlriParser method parseLabel.

public static List<LabelStack> parseLabel(final ByteBuf nlri) {
    if (!nlri.isReadable()) {
        return null;
    }
    final List<LabelStack> labels = new ArrayList<>();
    boolean bottomBit;
    do {
        final ByteBuf slice = nlri.readSlice(LABEL_LENGTH);
        bottomBit = MplsLabelUtil.getBottomBit(slice);
        final MplsLabel mplsLabel = MplsLabelUtil.mplsLabelForByteBuf(slice);
        if (MplsLabelUtil.intForMplsLabel(mplsLabel) == WITHDRAW_LABEL_INT_VALUE) {
            return null;
        }
        labels.add(new LabelStackBuilder().setLabelValue(mplsLabel).build());
    } while (!bottomBit);
    return labels;
}

Example 4 with LabelStack

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.labeled.unicast.rev171207.labeled.unicast.LabelStack in project bgpcep by opendaylight.

the class AbstractVpnNlriParser method serializeNlri.

private static void serializeNlri(final List<VpnDestination> dests, final boolean isWithdrawnRoute, final ByteBuf buffer) {
    final ByteBuf nlriByteBuf = Unpooled.buffer();
    for (final VpnDestination dest : dests) {
        final List<LabelStack> labelStack = dest.getLabelStack();
        final IpPrefix prefix = dest.getPrefix();
        LOG.debug("Serializing Nlri: VpnDestination={}, IpPrefix={}", dest, prefix);
        AbstractVpnNlriParser.serializeLengtField(prefix, labelStack, nlriByteBuf);
        LUNlriParser.serializeLabelStackEntries(labelStack, isWithdrawnRoute, nlriByteBuf);
        RouteDistinguisherUtil.serializeRouteDistinquisher(dest.getRouteDistinguisher(), nlriByteBuf);
        Preconditions.checkArgument(prefix.getIpv6Prefix() != null || prefix.getIpv4Prefix() != null, "Ipv6 or Ipv4 prefix is missing.");
        LUNlriParser.serializePrefixField(prefix, nlriByteBuf);
    }
    buffer.writeBytes(nlriByteBuf);
}

Example 5 with LabelStack

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.labeled.unicast.rev171207.labeled.unicast.LabelStack in project bgpcep by opendaylight.

the class VpnDestinationUtil method parseNlri.

static List<VpnDestination> parseNlri(final ByteBuf nlri, final Class<? extends AddressFamily> afi) {
    if (!nlri.isReadable()) {
        return null;
    }
    final List<VpnDestination> dests = new ArrayList<>();
    while (nlri.isReadable()) {
        final VpnDestinationBuilder builder = new VpnDestinationBuilder();
        final short length = nlri.readUnsignedByte();
        final List<LabelStack> labels = LUNlriParser.parseLabel(nlri);
        builder.setLabelStack(labels);
        final int labelNum = labels != null ? labels.size() : 1;
        final int prefixLen = length - (LUNlriParser.LABEL_LENGTH * Byte.SIZE * labelNum) - (RouteDistinguisherUtil.RD_LENGTH * Byte.SIZE);
        builder.setRouteDistinguisher(RouteDistinguisherUtil.parseRouteDistinguisher(nlri));
        Preconditions.checkState(prefixLen > 0, "A valid VPN IP prefix is required.");
        builder.setPrefix(LUNlriParser.parseIpPrefix(nlri, prefixLen, afi));
        dests.add(builder.build());
    }
    return dests;
}