bgp/inet/src/main/java/org/opendaylight/protocol/bgp/inet/IPv4RIBSupport.java

   1 /*
   2  * Copyright (c) 2015 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.inet;
   9
  10 import java.util.ArrayList;
  11 import java.util.Collection;
  12 import java.util.List;
  13 import javax.annotation.Nonnull;
  14 import org.opendaylight.protocol.bgp.parser.spi.PathIdUtil;
  15 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.bgp.rib.rib.loc.rib.tables.routes.Ipv4RoutesCase;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv4.prefixes.DestinationIpv4;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv4.prefixes.DestinationIpv4Builder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv4.prefixes.destination.ipv4.Ipv4Prefixes;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv4.prefixes.destination.ipv4.Ipv4PrefixesBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv4.routes.Ipv4Routes;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv4.routes.ipv4.routes.Ipv4Route;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv4CaseBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.Ipv4PrefixAndPathId;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.destination.DestinationType;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv4AddressFamily;
  27 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  28 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodes;
  29
  30 /**
  31  * Class supporting IPv4 unicast RIBs.
  32  */
  33 final class IPv4RIBSupport extends AbstractIPRibSupport {
  34
  35     private static final IPv4RIBSupport SINGLETON = new IPv4RIBSupport();
  36
  37     private IPv4RIBSupport() {
  38         super(Ipv4PrefixAndPathId.class, Ipv4AddressFamily.class,
  39                 Ipv4RoutesCase.class, Ipv4Routes.class, Ipv4Route.class, DestinationIpv4.QNAME, Ipv4Prefixes.QNAME);
  40     }
  41
  42     static IPv4RIBSupport getInstance() {
  43         return SINGLETON;
  44     }
  45
  46     private List<Ipv4Prefixes> extractPrefixes(final Collection<MapEntryNode> routes) {
  47         final List<Ipv4Prefixes> prefs = new ArrayList<>(routes.size());
  48         for (final MapEntryNode route : routes) {
  49             final String prefix = (String) NormalizedNodes.findNode(route, routePrefixIdentifier()).get().getValue();
  50             final Ipv4PrefixesBuilder prefixBuilder = new Ipv4PrefixesBuilder().setPrefix(new Ipv4Prefix(prefix));
  51             prefixBuilder.setPathId(PathIdUtil.buildPathId(route, routePathIdNid()));
  52             prefs.add(prefixBuilder.build());
  53         }
  54         return prefs;
  55     }
  56
  57     @Nonnull
  58     @Override
  59     protected DestinationType buildDestination(@Nonnull final Collection<MapEntryNode> routes) {
  60         return new DestinationIpv4CaseBuilder().setDestinationIpv4(new DestinationIpv4Builder()
  61                 .setIpv4Prefixes(extractPrefixes(routes)).build()).build();
  62     }
  63
  64     @Nonnull
  65     @Override
  66     protected DestinationType buildWithdrawnDestination(@Nonnull final Collection<MapEntryNode> routes) {
  67         return new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.update
  68                 .attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4CaseBuilder()
  69                 .setDestinationIpv4(new DestinationIpv4Builder().setIpv4Prefixes(extractPrefixes(routes))
  70                         .build()).build();
  71     }
  72 }