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 com.google.common.collect.ImmutableCollection;
11 import com.google.common.collect.ImmutableSet;
12 import io.netty.buffer.ByteBuf;
13 import io.netty.buffer.Unpooled;
14 import java.util.Arrays;
15 import java.util.Collection;
16 import java.util.List;
17 import java.util.Optional;
18 import java.util.stream.Collectors;
19 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
20 import org.opendaylight.protocol.bgp.linkstate.impl.nlri.LinkstateNlriParser;
21 import org.opendaylight.protocol.bgp.linkstate.spi.pojo.SimpleNlriTypeRegistry;
22 import org.opendaylight.protocol.bgp.parser.spi.PathIdUtil;
23 import org.opendaylight.protocol.bgp.rib.spi.AbstractRIBSupport;
24 import org.opendaylight.protocol.util.ByteArray;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.LinkstateAddressFamily;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.LinkstateSubsequentAddressFamily;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.bgp.rib.rib.loc.rib.tables.routes.LinkstateRoutesCase;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.bgp.rib.rib.peer.effective.rib.in.tables.routes.LinkstateRoutesCaseBuilder;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.destination.CLinkstateDestination;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.routes.LinkstateRoutes;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.routes.LinkstateRoutesBuilder;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.routes.linkstate.routes.LinkstateRoute;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.routes.linkstate.routes.LinkstateRouteBuilder;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.routes.linkstate.routes.LinkstateRouteKey;
35 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;
36 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;
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.destination.linkstate._case.DestinationLinkstateBuilder;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.PathId;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.Attributes;
40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.destination.DestinationType;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.tables.Routes;
42 import org.opendaylight.yangtools.yang.binding.DataObject;
43 import org.opendaylight.yangtools.yang.common.QName;
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 extends AbstractRIBSupport<LinkstateRoute, LinkstateRouteKey> {
57 private static final Logger LOG = LoggerFactory.getLogger(LinkstateRIBSupport.class);
58 private static final QName ROUTE_KEY_QNAME = QName.create(LinkstateRoute.QNAME, ROUTE_KEY).intern();
59 private static final LinkstateRIBSupport SINGLETON = new LinkstateRIBSupport();
60 private final NodeIdentifier route = new NodeIdentifier(LinkstateRoute.QNAME);
61 private final NodeIdentifier nlriRoutesList = new NodeIdentifier(CLinkstateDestination.QNAME);
63 private LinkstateRIBSupport() {
64 super(LinkstateRoutesCase.class, LinkstateRoutes.class, LinkstateRoute.class, LinkstateAddressFamily.class,
65 LinkstateSubsequentAddressFamily.class, DestinationLinkstate.QNAME);
68 public static LinkstateRIBSupport getInstance() {
72 private NodeIdentifierWithPredicates createRouteKey(final UnkeyedListEntryNode linkstate) {
73 final ByteBuf buffer = Unpooled.buffer();
74 final CLinkstateDestination cLinkstateDestination = LinkstateNlriParser.extractLinkstateDestination(linkstate);
75 SimpleNlriTypeRegistry.getInstance().serializeNlriType(cLinkstateDestination, buffer);
76 final Optional<DataContainerChild<? extends PathArgument, ?>> maybePathIdLeaf =
77 linkstate.getChild(routePathIdNid());
78 return PathIdUtil.createNidKey(LinkstateRoute.QNAME, ROUTE_KEY_QNAME,
79 pathIdQName(), Arrays.toString(ByteArray.readAllBytes(buffer)), maybePathIdLeaf);
82 private static List<CLinkstateDestination> extractRoutes(final Collection<MapEntryNode> routes) {
83 return routes.stream().map(LinkstateNlriParser::extractLinkstateDestination).collect(Collectors.toList());
87 public ImmutableCollection<Class<? extends DataObject>> cacheableAttributeObjects() {
88 return ImmutableSet.of();
92 public ImmutableCollection<Class<? extends DataObject>> cacheableNlriObjects() {
93 return ImmutableSet.of();
97 public boolean isComplexRoute() {
102 protected void processDestination(final DOMDataWriteTransaction tx, final YangInstanceIdentifier routesPath,
103 final ContainerNode destination, final ContainerNode attributes, final ApplyRoute function) {
104 if (destination != null) {
105 final Optional<DataContainerChild<? extends PathArgument, ?>> maybeRoutes
106 = destination.getChild(this.nlriRoutesList);
107 processRoute(maybeRoutes, routesPath, attributes, function, tx);
111 private void processRoute(final Optional<DataContainerChild<? extends PathArgument, ?>> maybeRoutes,
112 final YangInstanceIdentifier routesPath,
113 final ContainerNode attributes, final ApplyRoute function, final DOMDataWriteTransaction tx) {
114 if (maybeRoutes.isPresent()) {
115 final DataContainerChild<? extends PathArgument, ?> routes = maybeRoutes.get();
116 if (routes instanceof UnkeyedListNode) {
117 final YangInstanceIdentifier base = routesPath.node(routesContainerIdentifier()).node(this.route);
118 for (final UnkeyedListEntryNode e : ((UnkeyedListNode) routes).getValue()) {
119 final NodeIdentifierWithPredicates routeKey = createRouteKey(e);
120 function.apply(tx, base, routeKey, e, attributes);
123 LOG.warn("Routes {} are not a map", routes);
129 protected DestinationType buildDestination(final Collection<MapEntryNode> routes) {
130 return new DestinationLinkstateCaseBuilder().setDestinationLinkstate(
131 new DestinationLinkstateBuilder().setCLinkstateDestination(extractRoutes(routes)).build()).build();
135 protected DestinationType buildWithdrawnDestination(final Collection<MapEntryNode> routes) {
136 return new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.update
137 .attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationLinkstateCaseBuilder()
138 .setDestinationLinkstate(new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp
139 .linkstate.rev180329.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type
140 .destination.linkstate._case.DestinationLinkstateBuilder()
141 .setCLinkstateDestination(extractRoutes(routes)).build()).build();
145 public LinkstateRoute createRoute(final LinkstateRoute route, final String routeKey,
146 final long pathId, final Attributes attributes) {
147 final LinkstateRouteBuilder builder;
149 builder = new LinkstateRouteBuilder(route);
151 builder = new LinkstateRouteBuilder();
153 return builder.setKey(new LinkstateRouteKey(new PathId(pathId), routeKey)).setAttributes(attributes).build();
157 public Routes emptyRoutesContainer() {
158 return new LinkstateRoutesCaseBuilder().setLinkstateRoutes(new LinkstateRoutesBuilder().build()).build();
162 public LinkstateRouteKey createRouteListKey(final long pathId, final String routeKey) {
163 return new LinkstateRouteKey(new PathId(pathId), routeKey);