bgp/parser-impl/src/main/java/org/opendaylight/protocol/bgp/parser/impl/message/update/WithdrawnRoutesSerializer.java

   1 /*
   2  * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.protocol.bgp.parser.impl.message.update;
   9
  10 import io.netty.buffer.ByteBuf;
  11 import org.opendaylight.protocol.bgp.parser.spi.NlriSerializer;
  12 import org.opendaylight.protocol.util.Ipv4Util;
  13 import org.opendaylight.protocol.util.Ipv6Util;
  14 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix;
  15 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv6Prefix;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.update.PathAttributes;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.PathAttributes2;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.destination.destination.type.DestinationIpv4Case;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.destination.destination.type.DestinationIpv6Case;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpUnreachNlri;
  21 import org.opendaylight.yangtools.yang.binding.DataObject;
  22
  23 public class WithdrawnRoutesSerializer implements NlriSerializer {
  24     @Override
  25     public void serializeAttribute(DataObject attribute, ByteBuf byteAggregator) {
  26         PathAttributes pathAttributes = (PathAttributes) attribute;
  27         PathAttributes2 pathAttributes2 = pathAttributes.getAugmentation(PathAttributes2.class);
  28         if (pathAttributes2 == null) {
  29             return;
  30         }
  31         MpUnreachNlri mpUnreachNlri = pathAttributes2.getMpUnreachNlri();
  32         if (mpUnreachNlri == null) {
  33             return;
  34         }
  35
  36         if (mpUnreachNlri.getWithdrawnRoutes() != null) {
  37             if (mpUnreachNlri.getWithdrawnRoutes().getDestinationType() instanceof DestinationIpv4Case) {
  38                 DestinationIpv4Case destinationIpv4Case = (DestinationIpv4Case) mpUnreachNlri.getWithdrawnRoutes().getDestinationType();
  39                 if (destinationIpv4Case.getDestinationIpv4().getIpv4Prefixes() != null) {
  40                     for (Ipv4Prefix ipv4Prefix : destinationIpv4Case.getDestinationIpv4().getIpv4Prefixes()) {
  41                         byteAggregator.writeByte(Ipv4Util.getPrefixLength(ipv4Prefix.getValue()));
  42                         byteAggregator.writeBytes(Ipv4Util.bytesForPrefixByPrefixLength(ipv4Prefix));
  43                     }
  44                 }
  45             } else if (mpUnreachNlri.getWithdrawnRoutes().getDestinationType() instanceof DestinationIpv6Case) {
  46                 DestinationIpv6Case destinationIpv6Case = (DestinationIpv6Case) mpUnreachNlri.getWithdrawnRoutes().getDestinationType();
  47                 if (destinationIpv6Case.getDestinationIpv6().getIpv6Prefixes() != null) {
  48                     for (Ipv6Prefix ipv6Prefix : destinationIpv6Case.getDestinationIpv6().getIpv6Prefixes()) {
  49                         byteAggregator.writeByte(Ipv4Util.getPrefixLength(ipv6Prefix.getValue()));
  50                         byteAggregator.writeBytes(Ipv6Util.bytesForPrefixByPrefixLength(ipv6Prefix));
  51                     }
  52                 }
  53             }
  54         }
  55     }
  56 }