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.Collection;
15 import java.util.List;
16 import java.util.Optional;
17 import java.util.stream.Collectors;
18 import javax.annotation.Nonnull;
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.rib.spi.AbstractRIBSupport;
23 import org.opendaylight.protocol.util.ByteArray;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev171207.LinkstateAddressFamily;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev171207.LinkstateSubsequentAddressFamily;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev171207.bgp.rib.rib.loc.rib.tables.routes.LinkstateRoutesCase;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev171207.linkstate.destination.CLinkstateDestination;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev171207.linkstate.routes.LinkstateRoutes;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev171207.linkstate.routes.linkstate.routes.LinkstateRoute;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev171207.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationLinkstateCaseBuilder;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev171207.update.attributes.mp.reach.nlri.advertized.routes.destination.type.destination.linkstate._case.DestinationLinkstate;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev171207.update.attributes.mp.reach.nlri.advertized.routes.destination.type.destination.linkstate._case.DestinationLinkstateBuilder;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev171207.destination.DestinationType;
34 import org.opendaylight.yangtools.yang.binding.DataObject;
35 import org.opendaylight.yangtools.yang.common.QName;
36 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
37 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
38 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
39 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
40 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
41 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
42 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
43 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
44 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
45 import org.slf4j.Logger;
46 import org.slf4j.LoggerFactory;
48 public final class LinkstateRIBSupport extends AbstractRIBSupport {
49 private static final Logger LOG = LoggerFactory.getLogger(LinkstateRIBSupport.class);
50 private static final QName ROUTE_KEY = QName.create(LinkstateRoute.QNAME, "route-key").intern();
51 private static final LinkstateRIBSupport SINGLETON = new LinkstateRIBSupport();
52 private final NodeIdentifier route = new NodeIdentifier(LinkstateRoute.QNAME);
53 private final NodeIdentifier nlriRoutesList = new NodeIdentifier(CLinkstateDestination.QNAME);
55 private LinkstateRIBSupport() {
56 super(LinkstateRoutesCase.class, LinkstateRoutes.class, LinkstateRoute.class, LinkstateAddressFamily.class, LinkstateSubsequentAddressFamily.class,
57 DestinationLinkstate.QNAME);
60 public static LinkstateRIBSupport getInstance() {
65 public ImmutableCollection<Class<? extends DataObject>> cacheableAttributeObjects() {
66 return ImmutableSet.of();
70 public ImmutableCollection<Class<? extends DataObject>> cacheableNlriObjects() {
71 return ImmutableSet.of();
75 public boolean isComplexRoute() {
80 protected void processDestination(final DOMDataWriteTransaction tx, final YangInstanceIdentifier routesPath,
81 final ContainerNode destination, final ContainerNode attributes, final ApplyRoute function) {
82 if (destination != null) {
83 final Optional<DataContainerChild<? extends PathArgument, ?>> maybeRoutes = destination.getChild(this.nlriRoutesList);
84 processRoute(maybeRoutes, routesPath, attributes, function, tx);
88 private void processRoute(final Optional<DataContainerChild<? extends PathArgument, ?>> maybeRoutes, final YangInstanceIdentifier routesPath,
89 final ContainerNode attributes, final ApplyRoute function, final DOMDataWriteTransaction tx) {
90 if (maybeRoutes.isPresent()) {
91 final DataContainerChild<? extends PathArgument, ?> routes = maybeRoutes.get();
92 if (routes instanceof UnkeyedListNode) {
93 final YangInstanceIdentifier base = routesPath.node(routesContainerIdentifier()).node(this.route);
94 for (final UnkeyedListEntryNode e : ((UnkeyedListNode) routes).getValue()) {
95 final NodeIdentifierWithPredicates routeKey = createRouteKey(e);
96 function.apply(tx, base, routeKey, e, attributes);
99 LOG.warn("Routes {} are not a map", routes);
104 private static NodeIdentifierWithPredicates createRouteKey(final UnkeyedListEntryNode linkstate) {
105 final ByteBuf buffer = Unpooled.buffer();
106 final CLinkstateDestination cLinkstateDestination = LinkstateNlriParser.extractLinkstateDestination(linkstate);
107 SimpleNlriTypeRegistry.getInstance().serializeNlriType(cLinkstateDestination, buffer);
109 return new NodeIdentifierWithPredicates(LinkstateRoute.QNAME, ROUTE_KEY, ByteArray.readAllBytes(buffer));
114 protected DestinationType buildDestination(@Nonnull final Collection<MapEntryNode> routes) {
115 return new DestinationLinkstateCaseBuilder().setDestinationLinkstate(
116 new DestinationLinkstateBuilder().setCLinkstateDestination(extractRoutes(routes)).build()).build();
121 protected DestinationType buildWithdrawnDestination(@Nonnull final Collection<MapEntryNode> routes) {
122 return new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev171207.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationLinkstateCaseBuilder().setDestinationLinkstate(
123 new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev171207.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.destination.linkstate._case.DestinationLinkstateBuilder().
124 setCLinkstateDestination(extractRoutes(routes)).build()).build();
127 private static List<CLinkstateDestination> extractRoutes(final Collection<MapEntryNode> routes) {
128 return routes.stream().map(LinkstateNlriParser::extractLinkstateDestination).collect(Collectors.toList());