Example usage for io.netty.buffer ByteBuf readUnsignedShort

Introduction

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

Prototype

public abstract int readUnsignedShort();

Source Link

Document

Gets an unsigned 16-bit short integer at the current readerIndex and increases the readerIndex by 2 in this buffer.

Usage

From source file:org.opendaylight.protocol.bgp.evpn.impl.extended.communities.Layer2AttributesExtCom.java

License:Open Source License

@Override
public ExtendedCommunity parseExtendedCommunity(final ByteBuf body)
        throws BGPDocumentedException, BGPParsingException {
    final Layer2AttributesExtendedCommunityBuilder builder = new Layer2AttributesExtendedCommunityBuilder();
    final BitArray flags = BitArray.valueOf(body, FLAGS_SIZE);
    builder.setPrimaryPe(flags.get(PRIMARY_PE_OFFSET));
    builder.setBackupPe(flags.get(BACKUP_PE_OFFSET));
    builder.setControlWord(flags.get(CONTROL_WORD_OFFSET));
    builder.setL2Mtu(body.readUnsignedShort());
    body.skipBytes(RESERVED);/*from w w  w . ja v a2s.  c  o  m*/
    return new Layer2AttributesExtendedCommunityCaseBuilder()
            .setLayer2AttributesExtendedCommunity(builder.build()).build();
}

From source file:org.opendaylight.protocol.bgp.flowspec.AbstractFlowspecNlriParser.java

License:Open Source License

/**
 * This step is used to verify the NLRI length we read from BGP message
 *
 * @param nlri/*  w ww  .  j  a v  a  2 s. c  om*/
 */
private static final void verifyNlriLength(@Nonnull final ByteBuf nlri) {
    // length field can be one or two bytes (if needed)
    // check the length of nlri to see how many bytes we can skip
    int readableLength = nlri.readableBytes();
    // read the length from field
    final int expectedLength;
    if (readableLength > MAX_NLRI_LENGTH_ONE_BYTE) {
        expectedLength = nlri.readUnsignedShort();
        // deduct the two bytes of the NLRI length field
        readableLength -= NLRI_LENGTH_EXTENDED;
    } else {
        expectedLength = nlri.readUnsignedByte();
        // deduct the one byte of the NLRI length field
        readableLength -= NLRI_LENGTH;
    }
    Preconditions.checkState(readableLength == expectedLength,
            "NLRI length read from message doesn't match. Length expected (read from NLRI) is %s, length readable is %s",
            expectedLength, readableLength);
}

From source file:org.opendaylight.protocol.bgp.flowspec.extended.communities.RedirectAsFourOctetEcHandler.java

License:Open Source License

@Override
public ExtendedCommunity parseExtendedCommunity(final ByteBuf buffer)
        throws BGPDocumentedException, BGPParsingException {
    final RedirectAs4Builder builder = new RedirectAs4Builder();
    builder.setGlobalAdministrator(new AsNumber(buffer.readUnsignedInt()));
    builder.setLocalAdministrator(buffer.readUnsignedShort());
    return new RedirectAs4ExtendedCommunityCaseBuilder().setRedirectAs4(builder.build()).build();
}

From source file:org.opendaylight.protocol.bgp.flowspec.extended.communities.RedirectAsTwoOctetEcHandler.java

License:Open Source License

@Override
public ExtendedCommunity parseExtendedCommunity(final ByteBuf buffer)
        throws BGPDocumentedException, BGPParsingException {
    final ShortAsNumber as1 = new ShortAsNumber((long) buffer.readUnsignedShort());
    final byte[] byteValue = ByteArray.readBytes(buffer, TRAFFIC_RATE_SIZE);
    return new RedirectExtendedCommunityCaseBuilder()
            .setRedirectExtendedCommunity(new RedirectExtendedCommunityBuilder().setGlobalAdministrator(as1)
                    .setLocalAdministrator(byteValue).build())
            .build();// www.java 2 s.  com
}

From source file:org.opendaylight.protocol.bgp.flowspec.extended.communities.RedirectIpNextHopEcHandler.java

License:Open Source License

@Override
public ExtendedCommunity parseExtendedCommunity(final ByteBuf buffer)
        throws BGPDocumentedException, BGPParsingException {
    final RedirectIpNhExtendedCommunityBuilder builder = new RedirectIpNhExtendedCommunityBuilder();
    if (buffer.readableBytes() > Ipv6Util.IPV6_LENGTH) {
        builder.setNextHopAddress(new IpAddress(Ipv6Util.addressForByteBuf(buffer)));
    } else {// ww w  .  j a v a  2  s  . c  om
        builder.setNextHopAddress(new IpAddress(Ipv4Util.addressForByteBuf(buffer)));
    }
    builder.setCopy((buffer.readUnsignedShort() & COPY) == 1);
    return new RedirectIpNhExtendedCommunityCaseBuilder().setRedirectIpNhExtendedCommunity(builder.build())
            .build();
}

From source file:org.opendaylight.protocol.bgp.flowspec.extended.communities.RedirectIpv4EcHandler.java

License:Open Source License

@Override
public ExtendedCommunity parseExtendedCommunity(final ByteBuf buffer)
        throws BGPDocumentedException, BGPParsingException {
    final RedirectIpv4Builder builder = new RedirectIpv4Builder();
    builder.setGlobalAdministrator(Ipv4Util.addressForByteBuf(buffer));
    builder.setLocalAdministrator(buffer.readUnsignedShort());
    return new RedirectIpv4ExtendedCommunityCaseBuilder().setRedirectIpv4(builder.build()).build();
}

From source file:org.opendaylight.protocol.bgp.flowspec.extended.communities.RedirectIpv6EcHandler.java

License:Open Source License

@Override
public ExtendedCommunity parseExtendedCommunity(final ByteBuf buffer)
        throws BGPDocumentedException, BGPParsingException {
    return new RedirectIpv6ExtendedCommunityCaseBuilder().setRedirectIpv6(
            new RedirectIpv6Builder().setGlobalAdministrator(Ipv6Util.addressForByteBuf(buffer))
                    .setLocalAdministrator(buffer.readUnsignedShort()).build())
            .build();/*from  w w w .j  av a2 s  .co m*/
}

From source file:org.opendaylight.protocol.bgp.flowspec.extended.communities.TrafficRateEcHandler.java

License:Open Source License

@Override
public ExtendedCommunity parseExtendedCommunity(final ByteBuf buffer)
        throws BGPDocumentedException, BGPParsingException {
    final ShortAsNumber as = new ShortAsNumber((long) buffer.readUnsignedShort());
    final Bandwidth value = new Bandwidth(ByteArray.readBytes(buffer, TRAFFIC_RATE_SIZE));
    return new TrafficRateExtendedCommunityCaseBuilder().setTrafficRateExtendedCommunity(
            new TrafficRateExtendedCommunityBuilder().setInformativeAs(as).setLocalAdministrator(value).build())
            .build();/*from  w w  w . j  a  va 2  s .  com*/
}

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

License:Open Source License

private static Multimap<Integer, ByteBuf> getAttributesMap(final ByteBuf buffer) {
    /*/* ww  w  .jav  a  2s.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.NodeAttributesParser.java

License:Open Source License

private static void parseTopologyId(final List<TopologyIdentifier> topologyMembership, final ByteBuf value) {
    while (value.isReadable()) {
        final TopologyIdentifier topId = new TopologyIdentifier(
                value.readUnsignedShort() & TlvUtil.TOPOLOGY_ID_OFFSET);
        topologyMembership.add(topId);/*from  www.  j  a  v  a 2  s.  c o  m*/
        LOG.debug("Parsed Topology Identifier: {}", topId);
    }
}