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;
19 import java.util.Optional;
20 import java.util.stream.Collectors;
21 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
22 import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteTransaction;
23 import org.opendaylight.protocol.bgp.linkstate.impl.nlri.LinkstateNlriParser;
24 import org.opendaylight.protocol.bgp.linkstate.spi.pojo.SimpleNlriTypeRegistry;
25 import org.opendaylight.protocol.bgp.parser.spi.PathIdUtil;
26 import org.opendaylight.protocol.bgp.rib.spi.AbstractRIBSupport;
27 import org.opendaylight.protocol.util.ByteArray;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.LinkstateAddressFamily;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.LinkstateSubsequentAddressFamily;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.bgp.rib.rib.loc.rib.tables.routes.LinkstateRoutesCase;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.linkstate.destination.CLinkstateDestination;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.linkstate.routes.LinkstateRoutes;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.linkstate.routes.LinkstateRoutesBuilder;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.linkstate.routes.linkstate.routes.LinkstateRoute;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.linkstate.routes.linkstate.routes.LinkstateRouteBuilder;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.linkstate.routes.linkstate.routes.LinkstateRouteKey;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.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.rev200120.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.rev200120.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.rev200120.PathId;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.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.NodeIdentifier;
46 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
47 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
48 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
49 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
50 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
51 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
52 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
53 import org.slf4j.Logger;
54 import org.slf4j.LoggerFactory;
56 public final class LinkstateRIBSupport
57 extends AbstractRIBSupport<LinkstateRoutesCase, LinkstateRoutes, LinkstateRoute, LinkstateRouteKey> {
58 private static final Logger LOG = LoggerFactory.getLogger(LinkstateRIBSupport.class);
59 private static final LinkstateRoutes EMPTY_CONTAINER = new LinkstateRoutesBuilder().build();
60 private static final NodeIdentifier NLRI_ROUTES_LIST = NodeIdentifier.create(CLinkstateDestination.QNAME);
61 private static LinkstateRIBSupport SINGLETON;
63 private LinkstateRIBSupport(final BindingNormalizedNodeSerializer mappingService) {
66 LinkstateRoutesCase.class,
67 LinkstateRoutes.class,
69 LinkstateAddressFamily.class,
70 LinkstateSubsequentAddressFamily.class,
71 DestinationLinkstate.QNAME);
74 public static synchronized LinkstateRIBSupport getInstance(final BindingNormalizedNodeSerializer mappingService) {
75 if (SINGLETON == null) {
76 SINGLETON = new LinkstateRIBSupport(mappingService);
81 private NodeIdentifierWithPredicates createRouteKey(final UnkeyedListEntryNode linkstate) {
82 final ByteBuf buffer = Unpooled.buffer();
83 final CLinkstateDestination cLinkstateDestination = LinkstateNlriParser.extractLinkstateDestination(linkstate);
84 SimpleNlriTypeRegistry.getInstance().serializeNlriType(cLinkstateDestination, buffer);
85 final Optional<DataContainerChild<? extends PathArgument, ?>> maybePathIdLeaf =
86 linkstate.getChild(routePathIdNid());
87 return PathIdUtil.createNidKey(routeQName(), routeKeyTemplate(),
88 ByteArray.encodeBase64(buffer), maybePathIdLeaf);
91 private static List<CLinkstateDestination> extractRoutes(final Collection<MapEntryNode> routes) {
92 return routes.stream().map(LinkstateNlriParser::extractLinkstateDestination).collect(Collectors.toList());
96 protected Collection<NodeIdentifierWithPredicates> processDestination(final DOMDataTreeWriteTransaction tx,
97 final YangInstanceIdentifier routesPath,
98 final ContainerNode destination,
99 final ContainerNode attributes,
100 final ApplyRoute function) {
101 if (destination != null) {
102 final Optional<DataContainerChild<? extends PathArgument, ?>> maybeRoutes
103 = destination.getChild(LinkstateRIBSupport.NLRI_ROUTES_LIST);
104 return processRoute(maybeRoutes, routesPath, attributes, function, tx);
106 return Collections.emptyList();
109 private List<NodeIdentifierWithPredicates> processRoute(
110 final Optional<DataContainerChild<? extends PathArgument, ?>> maybeRoutes,
111 final YangInstanceIdentifier routesPath,
112 final ContainerNode attributes, final ApplyRoute function, final DOMDataTreeWriteTransaction tx) {
113 if (maybeRoutes.isPresent()) {
114 final DataContainerChild<? extends PathArgument, ?> routes = maybeRoutes.get();
115 if (routes instanceof UnkeyedListNode) {
116 final YangInstanceIdentifier base = routesYangInstanceIdentifier(routesPath);
117 final Collection<UnkeyedListEntryNode> routesList = ((UnkeyedListNode) routes).getValue();
118 final List<NodeIdentifierWithPredicates> keys = new ArrayList<>(routesList.size());
119 for (final UnkeyedListEntryNode linkstateDest : routesList) {
120 final NodeIdentifierWithPredicates routeKey = createRouteKey(linkstateDest);
121 function.apply(tx, base, routeKey, linkstateDest, attributes);
126 LOG.warn("Routes {} are not a map", routes);
128 return Collections.emptyList();
132 protected DestinationType buildDestination(final Collection<MapEntryNode> routes) {
133 return new DestinationLinkstateCaseBuilder().setDestinationLinkstate(
134 new DestinationLinkstateBuilder().setCLinkstateDestination(extractRoutes(routes)).build()).build();
138 protected DestinationType buildWithdrawnDestination(final Collection<MapEntryNode> routes) {
139 return new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.update
140 .attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationLinkstateCaseBuilder()
141 .setDestinationLinkstate(
142 new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120
143 .update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type
144 .destination.linkstate._case.DestinationLinkstateBuilder()
145 .setCLinkstateDestination(extractRoutes(routes)).build())
150 public LinkstateRoute createRoute(final LinkstateRoute route, final LinkstateRouteKey key,
151 final Attributes attributes) {
152 final LinkstateRouteBuilder builder;
154 builder = new LinkstateRouteBuilder(route);
156 builder = new LinkstateRouteBuilder();
158 return builder.withKey(key).setAttributes(attributes).build();
162 public LinkstateRoutes emptyRoutesContainer() {
163 return EMPTY_CONTAINER;
167 public LinkstateRouteKey createRouteListKey(final PathId pathId, final String routeKey) {
168 return new LinkstateRouteKey(pathId, routeKey);
172 public PathId extractPathId(final LinkstateRouteKey routeListKey) {
173 return routeListKey.getPathId();
177 public String extractRouteKey(final LinkstateRouteKey routeListKey) {
178 return routeListKey.getRouteKey();
182 public Map<LinkstateRouteKey, LinkstateRoute> extractAdjRibInRoutes(final Routes routes) {
184 routes instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120
185 .bgp.rib.rib.peer.adj.rib.in.tables.routes.LinkstateRoutesCase, "Unrecognized routes %s", routes);
186 return ((org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120
187 .bgp.rib.rib.peer.adj.rib.in.tables.routes.LinkstateRoutesCase) routes).getLinkstateRoutes()
188 .nonnullLinkstateRoute();