2 * Copyright (c) 2016 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.linkstate.impl;
10 import static com.google.common.base.Verify.verify;
12 import io.netty.buffer.ByteBuf;
13 import io.netty.buffer.Unpooled;
14 import java.util.ArrayList;
15 import java.util.Collection;
16 import java.util.Collections;
17 import java.util.List;
18 import java.util.Optional;
19 import java.util.stream.Collectors;
20 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
21 import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteTransaction;
22 import org.opendaylight.protocol.bgp.linkstate.impl.nlri.LinkstateNlriParser;
23 import org.opendaylight.protocol.bgp.linkstate.spi.pojo.SimpleNlriTypeRegistry;
24 import org.opendaylight.protocol.bgp.parser.spi.PathIdUtil;
25 import org.opendaylight.protocol.bgp.rib.spi.AbstractRIBSupport;
26 import org.opendaylight.protocol.util.ByteArray;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.LinkstateAddressFamily;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.LinkstateSubsequentAddressFamily;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.bgp.rib.rib.loc.rib.tables.routes.LinkstateRoutesCase;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.bgp.rib.rib.loc.rib.tables.routes.LinkstateRoutesCaseBuilder;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.destination.CLinkstateDestination;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.routes.LinkstateRoutes;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.routes.LinkstateRoutesBuilder;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.routes.linkstate.routes.LinkstateRoute;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.routes.linkstate.routes.LinkstateRouteBuilder;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.routes.linkstate.routes.LinkstateRouteKey;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationLinkstateCaseBuilder;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.update.attributes.mp.reach.nlri.advertized.routes.destination.type.destination.linkstate._case.DestinationLinkstate;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.update.attributes.mp.reach.nlri.advertized.routes.destination.type.destination.linkstate._case.DestinationLinkstateBuilder;
40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.PathId;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.Attributes;
42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.destination.DestinationType;
43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.tables.Routes;
44 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
45 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
46 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
47 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
48 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
49 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
50 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
51 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
52 import org.slf4j.Logger;
53 import org.slf4j.LoggerFactory;
55 public final class LinkstateRIBSupport
56 extends AbstractRIBSupport<LinkstateRoutesCase, LinkstateRoutes, LinkstateRoute, LinkstateRouteKey> {
57 private static final Logger LOG = LoggerFactory.getLogger(LinkstateRIBSupport.class);
59 private static final LinkstateRoutes EMPTY_CONTAINER
60 = new LinkstateRoutesBuilder().setLinkstateRoute(Collections.emptyList()).build();
61 private static final LinkstateRoutesCase EMPTY_CASE
62 = new LinkstateRoutesCaseBuilder().setLinkstateRoutes(EMPTY_CONTAINER).build();
63 private static LinkstateRIBSupport SINGLETON;
64 private final YangInstanceIdentifier.NodeIdentifier nlriRoutesList
65 = new YangInstanceIdentifier.NodeIdentifier(CLinkstateDestination.QNAME);
67 private LinkstateRIBSupport(final BindingNormalizedNodeSerializer mappingService) {
70 LinkstateRoutesCase.class,
71 LinkstateRoutes.class,
73 LinkstateAddressFamily.class,
74 LinkstateSubsequentAddressFamily.class,
75 DestinationLinkstate.QNAME);
78 public static synchronized LinkstateRIBSupport getInstance(final BindingNormalizedNodeSerializer mappingService) {
79 if (SINGLETON == null) {
80 SINGLETON = new LinkstateRIBSupport(mappingService);
85 private NodeIdentifierWithPredicates createRouteKey(final UnkeyedListEntryNode linkstate) {
86 final ByteBuf buffer = Unpooled.buffer();
87 final CLinkstateDestination cLinkstateDestination = LinkstateNlriParser.extractLinkstateDestination(linkstate);
88 SimpleNlriTypeRegistry.getInstance().serializeNlriType(cLinkstateDestination, buffer);
89 final Optional<DataContainerChild<? extends PathArgument, ?>> maybePathIdLeaf =
90 linkstate.getChild(routePathIdNid());
91 return PathIdUtil.createNidKey(routeQName(), routeKeyQName(),
92 pathIdQName(), ByteArray.encodeBase64(buffer), maybePathIdLeaf);
95 private static List<CLinkstateDestination> extractRoutes(final Collection<MapEntryNode> routes) {
96 return routes.stream().map(LinkstateNlriParser::extractLinkstateDestination).collect(Collectors.toList());
100 protected Collection<NodeIdentifierWithPredicates> processDestination(final DOMDataTreeWriteTransaction tx,
101 final YangInstanceIdentifier routesPath,
102 final ContainerNode destination,
103 final ContainerNode attributes,
104 final ApplyRoute function) {
105 if (destination != null) {
106 final Optional<DataContainerChild<? extends PathArgument, ?>> maybeRoutes
107 = destination.getChild(this.nlriRoutesList);
108 return processRoute(maybeRoutes, routesPath, attributes, function, tx);
110 return Collections.emptyList();
113 private List<NodeIdentifierWithPredicates> processRoute(
114 final Optional<DataContainerChild<? extends PathArgument, ?>> maybeRoutes,
115 final YangInstanceIdentifier routesPath,
116 final ContainerNode attributes, final ApplyRoute function, final DOMDataTreeWriteTransaction tx) {
117 if (maybeRoutes.isPresent()) {
118 final DataContainerChild<? extends PathArgument, ?> routes = maybeRoutes.get();
119 if (routes instanceof UnkeyedListNode) {
120 final YangInstanceIdentifier base = routesYangInstanceIdentifier(routesPath);
121 final Collection<UnkeyedListEntryNode> routesList = ((UnkeyedListNode) routes).getValue();
122 final List<NodeIdentifierWithPredicates> keys = new ArrayList<>(routesList.size());
123 for (final UnkeyedListEntryNode linkstateDest : routesList) {
124 final NodeIdentifierWithPredicates routeKey = createRouteKey(linkstateDest);
125 function.apply(tx, base, routeKey, linkstateDest, attributes);
130 LOG.warn("Routes {} are not a map", routes);
133 return Collections.emptyList();
137 protected DestinationType buildDestination(final Collection<MapEntryNode> routes) {
138 return new DestinationLinkstateCaseBuilder().setDestinationLinkstate(
139 new DestinationLinkstateBuilder().setCLinkstateDestination(extractRoutes(routes)).build()).build();
143 protected DestinationType buildWithdrawnDestination(final Collection<MapEntryNode> routes) {
144 return new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.update
145 .attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationLinkstateCaseBuilder()
146 .setDestinationLinkstate(new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp
147 .linkstate.rev180329.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type
148 .destination.linkstate._case.DestinationLinkstateBuilder()
149 .setCLinkstateDestination(extractRoutes(routes)).build()).build();
153 public LinkstateRoute createRoute(final LinkstateRoute route, final LinkstateRouteKey key,
154 final Attributes attributes) {
155 final LinkstateRouteBuilder builder;
157 builder = new LinkstateRouteBuilder(route);
159 builder = new LinkstateRouteBuilder();
161 return builder.withKey(key).setAttributes(attributes).build();
165 public LinkstateRoutesCase emptyRoutesCase() {
170 public LinkstateRoutes emptyRoutesContainer() {
171 return EMPTY_CONTAINER;
175 public LinkstateRouteKey createRouteListKey(final PathId pathId, final String routeKey) {
176 return new LinkstateRouteKey(pathId, routeKey);
180 public PathId extractPathId(final LinkstateRouteKey routeListKey) {
181 return routeListKey.getPathId();
185 public String extractRouteKey(final LinkstateRouteKey routeListKey) {
186 return routeListKey.getRouteKey();
190 public List<LinkstateRoute> extractAdjRibInRoutes(Routes routes) {
191 verify(routes instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate
192 .rev180329.bgp.rib.rib.peer.adj.rib.in.tables.routes.LinkstateRoutesCase, "Unrecognized routes %s", routes);
193 return ((org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329
194 .bgp.rib.rib.peer.adj.rib.in.tables.routes.LinkstateRoutesCase) routes).getLinkstateRoutes()
195 .nonnullLinkstateRoute();