2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.protocol.bgp.rib.impl;
10 import com.google.common.annotations.VisibleForTesting;
11 import java.util.ArrayList;
12 import java.util.Collection;
13 import java.util.List;
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.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.bgp.rib.rib.loc.rib.tables.routes.Ipv4RoutesCase;
16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.DestinationIpv4;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.DestinationIpv4Builder;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.destination.ipv4.Ipv4Prefixes;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.destination.ipv4.Ipv4PrefixesBuilder;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.routes.Ipv4Routes;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.routes.ipv4.routes.Ipv4Route;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv4CaseBuilder;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlri;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlriBuilder;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlri;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlriBuilder;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.unreach.nlri.WithdrawnRoutesBuilder;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.tables.Routes;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv4AddressFamily;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.CNextHop;
33 import org.opendaylight.yangtools.yang.common.QName;
34 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
35 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
36 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
37 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
38 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
41 * Class supporting IPv4 unicast RIBs.
43 final class IPv4RIBSupport extends AbstractIPRIBSupport {
45 static final QName PREFIX_QNAME = QName.cachedReference(QName.create(Ipv4Route.QNAME, "prefix"));
46 private static final IPv4RIBSupport SINGLETON = new IPv4RIBSupport();
47 private final ChoiceNode emptyRoutes = Builders.choiceBuilder()
48 .withNodeIdentifier(new NodeIdentifier(Routes.QNAME))
49 .addChild(Builders.containerBuilder()
50 .withNodeIdentifier(new NodeIdentifier(Ipv4Routes.QNAME))
51 .withChild(ImmutableNodes.mapNodeBuilder(Ipv4Route.QNAME).build()).build()).build();
52 private final NodeIdentifier destination = new NodeIdentifier(DestinationIpv4.QNAME);
53 private final NodeIdentifier route = new NodeIdentifier(Ipv4Route.QNAME);
54 private final NodeIdentifier nlriRoutesList = new NodeIdentifier(Ipv4Prefixes.QNAME);
55 private final NodeIdentifier routeKeyLeaf = new NodeIdentifier(PREFIX_QNAME);
57 private IPv4RIBSupport() {
58 super(Ipv4RoutesCase.class, Ipv4Routes.class, Ipv4Route.class);
61 static IPv4RIBSupport getInstance() {
66 public ChoiceNode emptyRoutes() {
67 return this.emptyRoutes;
71 protected NodeIdentifier destinationContainerIdentifier() {
72 return this.destination;
76 protected NodeIdentifier routeIdentifier() {
81 protected NodeIdentifier routeKeyLeafIdentifier() {
82 return this.routeKeyLeaf;
86 protected NodeIdentifier nlriRoutesListIdentifier() {
87 return this.nlriRoutesList;
91 protected QName keyLeafQName() {
96 protected QName routeQName() {
97 return Ipv4Route.QNAME;
100 private List<Ipv4Prefixes> extractPrefixes(final Collection<MapEntryNode> routes) {
101 final List<Ipv4Prefixes> prefs = new ArrayList<>(routes.size());
102 for (final MapEntryNode route : routes) {
103 final String prefix = (String) route.getChild(this.routeKeyLeaf).get().getValue();
104 prefs.add(new Ipv4PrefixesBuilder().setPrefix(new Ipv4Prefix(prefix)).build());
110 protected MpReachNlri buildReach(final Collection<MapEntryNode> routes, final CNextHop hop) {
111 final MpReachNlriBuilder mb = new MpReachNlriBuilder();
112 mb.setAfi(Ipv4AddressFamily.class);
113 mb.setSafi(UnicastSubsequentAddressFamily.class);
115 mb.setAdvertizedRoutes(new AdvertizedRoutesBuilder().setDestinationType(
116 new DestinationIpv4CaseBuilder().setDestinationIpv4(
117 new DestinationIpv4Builder().setIpv4Prefixes(extractPrefixes(routes)).build()).build()).build());
122 protected MpUnreachNlri buildUnreach(final Collection<MapEntryNode> routes) {
123 final MpUnreachNlriBuilder mb = new MpUnreachNlriBuilder();
124 mb.setAfi(Ipv4AddressFamily.class);
125 mb.setSafi(UnicastSubsequentAddressFamily.class);
126 mb.setWithdrawnRoutes(new WithdrawnRoutesBuilder().setDestinationType(
127 new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4CaseBuilder().setDestinationIpv4(
128 new DestinationIpv4Builder().setIpv4Prefixes(extractPrefixes(routes)).build()).build()).build());