Examples with BGPParsingException org.opendaylight.protocol.bgp.parser.BGPParsingException used on opensource projects

Example 11 with BGPParsingException

use of org.opendaylight.protocol.bgp.parser.BGPParsingException in project bgpcep by opendaylight.

the class AsPathAttributeParser method parseAsPath.

/**
 * Parses AS_PATH from bytes.
 *
 * @param refCache ReferenceCache shared reference of object
 * @param buffer bytes to be parsed
 * @return new ASPath object
 * @throws BGPDocumentedException if there is no AS_SEQUENCE present (mandatory)
 * @throws BGPParsingException
 */
private static AsPath parseAsPath(final ReferenceCache refCache, final ByteBuf buffer) throws BGPDocumentedException, BGPParsingException {
    if (!buffer.isReadable()) {
        return EMPTY;
    }
    final ArrayList<Segments> ases = new ArrayList<>();
    boolean isSequence = false;
    while (buffer.isReadable()) {
        final int type = buffer.readUnsignedByte();
        final SegmentType segmentType = AsPathSegmentParser.parseType(type);
        if (segmentType == null) {
            throw new BGPParsingException("AS Path segment type unknown : " + type);
        }
        final int count = buffer.readUnsignedByte();
        final List<AsNumber> asList = AsPathSegmentParser.parseAsSegment(refCache, count, buffer.readSlice(count * AsPathSegmentParser.AS_NUMBER_LENGTH));
        if (segmentType == SegmentType.AS_SEQUENCE) {
            ases.add(new SegmentsBuilder().setAsSequence(asList).build());
            isSequence = true;
        } else {
            ases.add(new SegmentsBuilder().setAsSet(asList).build());
        }
    }
    if (!isSequence) {
        throw new BGPDocumentedException("AS_SEQUENCE must be present in AS_PATH attribute.", BGPError.AS_PATH_MALFORMED);
    }
    ases.trimToSize();
    return new AsPathBuilder().setSegments(ases).build();
}

Example 12 with BGPParsingException

use of org.opendaylight.protocol.bgp.parser.BGPParsingException in project bgpcep by opendaylight.

the class MPReachAttributeParser method parseAttribute.

@Override
public void parseAttribute(final ByteBuf buffer, final AttributesBuilder builder, final PeerSpecificParserConstraint constraint) throws BGPDocumentedException {
    try {
        final MpReachNlri mpReachNlri = this.reg.parseMpReach(buffer, constraint);
        final Attributes1 a = new Attributes1Builder().setMpReachNlri(mpReachNlri).build();
        builder.addAugmentation(Attributes1.class, a);
    } catch (final BGPParsingException e) {
        throw new BGPDocumentedException("Could not parse MP_REACH_NLRI", BGPError.OPT_ATTR_ERROR, e);
    }
}

Example 13 with BGPParsingException

use of org.opendaylight.protocol.bgp.parser.BGPParsingException in project bgpcep by opendaylight.

the class MPUnreachAttributeParser method parseAttribute.

@Override
public void parseAttribute(final ByteBuf buffer, final AttributesBuilder builder, final PeerSpecificParserConstraint constraint) throws BGPDocumentedException {
    try {
        final MpUnreachNlri mpUnreachNlri = this.reg.parseMpUnreach(buffer, constraint);
        final Attributes2 a = new Attributes2Builder().setMpUnreachNlri(mpUnreachNlri).build();
        builder.addAugmentation(Attributes2.class, a);
    } catch (final BGPParsingException e) {
        throw new BGPDocumentedException("Could not parse MP_UNREACH_NLRI", BGPError.OPT_ATTR_ERROR, e);
    }
}

Example 14 with BGPParsingException

use of org.opendaylight.protocol.bgp.parser.BGPParsingException in project bgpcep by opendaylight.

the class TeLspAttributesParser method parseTeLspAttributes.

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 {
            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();
}