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 io.netty.buffer.ByteBuf;
11 import io.netty.buffer.Unpooled;
12 import java.util.Arrays;
13 import java.util.Collection;
14 import java.util.Collections;
15 import java.util.List;
16 import java.util.Optional;
17 import java.util.stream.Collectors;
18 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
19 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
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.loc.rib.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.yangtools.yang.data.api.YangInstanceIdentifier;
42 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
43 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
44 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
45 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
46 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
47 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
48 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
49 import org.slf4j.Logger;
50 import org.slf4j.LoggerFactory;
52 public final class LinkstateRIBSupport
53 extends AbstractRIBSupport<LinkstateRoutesCase, LinkstateRoutes, LinkstateRoute, LinkstateRouteKey> {
54 private static final Logger LOG = LoggerFactory.getLogger(LinkstateRIBSupport.class);
56 private static final LinkstateRoutes EMPTY_CONTAINER
57 = new LinkstateRoutesBuilder().setLinkstateRoute(Collections.emptyList()).build();
58 private static final LinkstateRoutesCase EMPTY_CASE
59 = new LinkstateRoutesCaseBuilder().setLinkstateRoutes(EMPTY_CONTAINER).build();
60 private static LinkstateRIBSupport SINGLETON;
61 private final YangInstanceIdentifier.NodeIdentifier nlriRoutesList
62 = new YangInstanceIdentifier.NodeIdentifier(CLinkstateDestination.QNAME);
64 private LinkstateRIBSupport(final BindingNormalizedNodeSerializer mappingService) {
67 LinkstateRoutesCase.class,
68 LinkstateRoutes.class,
70 LinkstateAddressFamily.class,
71 LinkstateSubsequentAddressFamily.class,
72 DestinationLinkstate.QNAME);
75 public synchronized static LinkstateRIBSupport getInstance(final BindingNormalizedNodeSerializer mappingService) {
76 if(SINGLETON == null){
77 SINGLETON = new LinkstateRIBSupport(mappingService);
82 private NodeIdentifierWithPredicates createRouteKey(final UnkeyedListEntryNode linkstate) {
83 final ByteBuf buffer = Unpooled.buffer();
84 final CLinkstateDestination cLinkstateDestination = LinkstateNlriParser.extractLinkstateDestination(linkstate);
85 SimpleNlriTypeRegistry.getInstance().serializeNlriType(cLinkstateDestination, buffer);
86 final Optional<DataContainerChild<? extends PathArgument, ?>> maybePathIdLeaf =
87 linkstate.getChild(routePathIdNid());
88 return PathIdUtil.createNidKey(routeQName(), routeKeyQName(),
89 pathIdQName(), Arrays.toString(ByteArray.readAllBytes(buffer)), maybePathIdLeaf);
92 private static List<CLinkstateDestination> extractRoutes(final Collection<MapEntryNode> routes) {
93 return routes.stream().map(LinkstateNlriParser::extractLinkstateDestination).collect(Collectors.toList());
97 protected void processDestination(final DOMDataWriteTransaction tx, final YangInstanceIdentifier routesPath,
98 final ContainerNode destination, final ContainerNode attributes, final ApplyRoute function) {
99 if (destination != null) {
100 final Optional<DataContainerChild<? extends PathArgument, ?>> maybeRoutes
101 = destination.getChild(this.nlriRoutesList);
102 processRoute(maybeRoutes, routesPath, attributes, function, tx);
106 private void processRoute(final Optional<DataContainerChild<? extends PathArgument, ?>> maybeRoutes,
107 final YangInstanceIdentifier routesPath,
108 final ContainerNode attributes, final ApplyRoute function, final DOMDataWriteTransaction tx) {
109 if (maybeRoutes.isPresent()) {
110 final DataContainerChild<? extends PathArgument, ?> routes = maybeRoutes.get();
111 if (routes instanceof UnkeyedListNode) {
112 final YangInstanceIdentifier base = routesPath.node(routesContainerIdentifier()).node(routeNid());
113 for (final UnkeyedListEntryNode e : ((UnkeyedListNode) routes).getValue()) {
114 final NodeIdentifierWithPredicates routeKey = createRouteKey(e);
115 function.apply(tx, base, routeKey, e, attributes);
118 LOG.warn("Routes {} are not a map", routes);
124 protected DestinationType buildDestination(final Collection<MapEntryNode> routes) {
125 return new DestinationLinkstateCaseBuilder().setDestinationLinkstate(
126 new DestinationLinkstateBuilder().setCLinkstateDestination(extractRoutes(routes)).build()).build();
130 protected DestinationType buildWithdrawnDestination(final Collection<MapEntryNode> routes) {
131 return new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.update
132 .attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationLinkstateCaseBuilder()
133 .setDestinationLinkstate(new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp
134 .linkstate.rev180329.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type
135 .destination.linkstate._case.DestinationLinkstateBuilder()
136 .setCLinkstateDestination(extractRoutes(routes)).build()).build();
140 public LinkstateRoute createRoute(final LinkstateRoute route, final String routeKey,
141 final long pathId, final Attributes attributes) {
142 final LinkstateRouteBuilder builder;
144 builder = new LinkstateRouteBuilder(route);
146 builder = new LinkstateRouteBuilder();
148 return builder.setKey(createRouteListKey(pathId, routeKey)).setAttributes(attributes).build();
152 public LinkstateRoutesCase emptyRoutesCase() {
157 public LinkstateRoutes emptyRoutesContainer() {
158 return EMPTY_CONTAINER;
162 public LinkstateRouteKey createRouteListKey(final long pathId, final String routeKey) {
163 return new LinkstateRouteKey(new PathId(pathId), routeKey);