bgp/inet/src/main/java/org/opendaylight/protocol/bgp/inet/IPv6RIBSupport.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.Collections;
  13 import java.util.List;
  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.Ipv6Prefix;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.bgp.rib.rib.loc.rib.tables.routes.Ipv6RoutesCase;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv6.prefixes.DestinationIpv6;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv6.prefixes.DestinationIpv6Builder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv6.prefixes.destination.ipv6.Ipv6Prefixes;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv6.prefixes.destination.ipv6.Ipv6PrefixesBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv6.routes.Ipv6Routes;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv6.routes.ipv6.routes.Ipv6Route;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv6.routes.ipv6.routes.Ipv6RouteBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.ipv6.routes.ipv6.routes.Ipv6RouteKey;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv6CaseBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.PathId;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.Attributes;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.destination.DestinationType;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv6AddressFamily;
  30 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  31 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodes;
  32
  33 /**
  34  * Class supporting IPv6 unicast RIBs.
  35  */
  36 final class IPv6RIBSupport extends AbstractIPRibSupport<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns
  37         .yang.bgp.inet.rev171207.bgp.rib.rib.peer.adj.rib.in.tables.routes.Ipv6RoutesCase, Ipv6Route, Ipv6RouteKey> {
  38
  39     private static final IPv6RIBSupport SINGLETON = new IPv6RIBSupport();
  40
  41     private IPv6RIBSupport() {
  42         super(org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.Ipv6Prefix.class,
  43                 Ipv6AddressFamily.class, Ipv6RoutesCase.class, Ipv6Routes.class, Ipv6Route.class,
  44                 DestinationIpv6.QNAME, Ipv6Prefixes.QNAME);
  45     }
  46
  47     static IPv6RIBSupport getInstance() {
  48         return SINGLETON;
  49     }
  50
  51     @Override
  52     protected DestinationType buildDestination(final Collection<MapEntryNode> routes) {
  53         return new DestinationIpv6CaseBuilder().setDestinationIpv6(new DestinationIpv6Builder()
  54                 .setIpv6Prefixes(extractPrefixes(routes)).build()).build();
  55     }
  56
  57     @Override
  58     protected DestinationType buildWithdrawnDestination(final Collection<MapEntryNode> routes) {
  59         return new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev171207.update
  60                 .attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv6CaseBuilder()
  61                 .setDestinationIpv6(new DestinationIpv6Builder().setIpv6Prefixes(extractPrefixes(routes))
  62                         .build()).build();
  63     }
  64
  65     private List<Ipv6Prefixes> extractPrefixes(final Collection<MapEntryNode> routes) {
  66         final List<Ipv6Prefixes> prefs = new ArrayList<>(routes.size());
  67         for (final MapEntryNode route : routes) {
  68             final String prefix = (String) NormalizedNodes.findNode(route, routePrefixIdentifier()).get().getValue();
  69             prefs.add(new Ipv6PrefixesBuilder().setPathId(PathIdUtil.buildPathId(route, routePathIdNid()))
  70                     .setPrefix(new Ipv6Prefix(prefix)).build());
  71         }
  72         return prefs;
  73     }
  74
  75     @Override
  76     public Ipv6RouteKey extractRouteKey(final Ipv6Route route) {
  77         return route.getKey();
  78     }
  79
  80     @Override
  81     public Ipv6Route createRoute(final Ipv6Route route, final Ipv6RouteKey routeKey, final PathId pathId,
  82             final Attributes attributes) {
  83         final Ipv6RouteBuilder builder;
  84         if (route != null) {
  85             builder = new Ipv6RouteBuilder(route);
  86         } else {
  87             builder = new Ipv6RouteBuilder();
  88         }
  89         return builder.setPrefix(routeKey.getPrefix()).setPathId(pathId).setAttributes(attributes).build();
  90     }
  91
  92     @Override
  93     public Collection<Ipv6Route> changedRoutes(final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang
  94             .bgp.inet.rev171207.bgp.rib.rib.peer.adj.rib.in.tables.routes.Ipv6RoutesCase routes) {
  95         final Ipv6Routes routeCont = routes.getIpv6Routes();
  96         if (routeCont == null) {
  97             return Collections.emptyList();
  98         }
  99         return routeCont.getIpv6Route();
 100     }
 101
 102     @Override
 103     public Ipv6RouteKey createNewRouteKey(final PathId pathId, final Ipv6RouteKey routeKey) {
 104         return new Ipv6RouteKey(pathId, routeKey.getPrefix());
 105     }
 106 }