bgp/extensions/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.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
  15 import org.opendaylight.protocol.bgp.parser.spi.PathIdUtil;
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.bgp.rib.rib.loc.rib.tables.routes.Ipv6RoutesCase;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.bgp.rib.rib.loc.rib.tables.routes.Ipv6RoutesCaseBuilder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv6.prefixes.DestinationIpv6;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv6.prefixes.DestinationIpv6Builder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv6.prefixes.destination.ipv6.Ipv6Prefixes;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv6.prefixes.destination.ipv6.Ipv6PrefixesBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv6.routes.Ipv6Routes;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv6.routes.Ipv6RoutesBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv6.routes.ipv6.routes.Ipv6Route;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv6.routes.ipv6.routes.Ipv6RouteBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv6.routes.ipv6.routes.Ipv6RouteKey;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv6CaseBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.PathId;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.Attributes;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.destination.DestinationType;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.Ipv6AddressFamily;
  33 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  34 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodes;
  35
  36 /**
  37  * Class supporting IPv6 unicast RIBs.
  38  */
  39 final class IPv6RIBSupport extends AbstractIPRibSupport<Ipv6RoutesCase, Ipv6Routes, Ipv6Route, Ipv6RouteKey> {
  40
  41     private static final Ipv6Routes EMPTY_CONTAINER
  42             = new Ipv6RoutesBuilder().setIpv6Route(Collections.emptyList()).build();
  43     private static final Ipv6RoutesCase EMPTY_CASE = new Ipv6RoutesCaseBuilder().setIpv6Routes(EMPTY_CONTAINER).build();
  44     private static IPv6RIBSupport SINGLETON;
  45
  46     private IPv6RIBSupport(final BindingNormalizedNodeSerializer mappingService) {
  47         super(mappingService,
  48                 org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.Ipv6Prefix.class,
  49                 Ipv6AddressFamily.class,
  50                 Ipv6RoutesCase.class,
  51                 Ipv6Routes.class,
  52                 Ipv6Route.class,
  53                 DestinationIpv6.QNAME,
  54                 Ipv6Prefixes.QNAME);
  55     }
  56
  57     static synchronized IPv6RIBSupport getInstance(final BindingNormalizedNodeSerializer mappingService) {
  58         if (SINGLETON == null) {
  59             SINGLETON = new IPv6RIBSupport(mappingService);
  60         }
  61         return SINGLETON;
  62     }
  63
  64     @Override
  65     protected DestinationType buildDestination(final Collection<MapEntryNode> routes) {
  66         return new DestinationIpv6CaseBuilder().setDestinationIpv6(new DestinationIpv6Builder()
  67                 .setIpv6Prefixes(extractPrefixes(routes)).build()).build();
  68     }
  69
  70     @Override
  71     protected DestinationType buildWithdrawnDestination(final Collection<MapEntryNode> routes) {
  72         return new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.update
  73                 .attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv6CaseBuilder()
  74                 .setDestinationIpv6(new DestinationIpv6Builder().setIpv6Prefixes(extractPrefixes(routes))
  75                         .build()).build();
  76     }
  77
  78     private List<Ipv6Prefixes> extractPrefixes(final Collection<MapEntryNode> routes) {
  79         final List<Ipv6Prefixes> prefs = new ArrayList<>(routes.size());
  80         for (final MapEntryNode route : routes) {
  81             final String prefix = (String) NormalizedNodes.findNode(route, routePrefixIdentifier()).get().getValue();
  82             prefs.add(new Ipv6PrefixesBuilder().setPathId(PathIdUtil.buildPathId(route, routePathIdNid()))
  83                     .setPrefix(new Ipv6Prefix(prefix)).build());
  84         }
  85         return prefs;
  86     }
  87
  88     @Override
  89     public Ipv6Route createRoute(final Ipv6Route route, final Ipv6RouteKey key, final Attributes attributes) {
  90         final Ipv6RouteBuilder builder;
  91         if (route != null) {
  92             builder = new Ipv6RouteBuilder(route);
  93         } else {
  94             builder = new Ipv6RouteBuilder();
  95         }
  96         return builder.withKey(key).setAttributes(attributes).build();
  97     }
  98
  99     @Override
 100     public Ipv6RoutesCase emptyRoutesCase() {
 101         return EMPTY_CASE;
 102     }
 103
 104     @Override
 105     public Ipv6Routes emptyRoutesContainer() {
 106         return EMPTY_CONTAINER;
 107     }
 108
 109     @Override
 110     public Ipv6RouteKey createRouteListKey(final PathId pathId, final String routeKey) {
 111         return new Ipv6RouteKey(pathId, routeKey);
 112     }
 113
 114     @Override
 115     public List<Ipv6Route> routesFromContainer(final Ipv6Routes container) {
 116         return container.getIpv6Route();
 117     }
 118
 119     @Override
 120     public PathId extractPathId(final Ipv6RouteKey routeListKey) {
 121         return routeListKey.getPathId();
 122     }
 123
 124     @Override
 125     public String extractRouteKey(final Ipv6RouteKey routeListKey) {
 126         return routeListKey.getRouteKey();
 127     }
 128 }