2 * Copyright (c) 2015 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;
10 import com.google.common.base.Optional;
11 import com.google.common.collect.ImmutableCollection;
12 import com.google.common.collect.ImmutableSet;
13 import io.netty.buffer.ByteBuf;
14 import io.netty.buffer.Unpooled;
15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
16 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
17 import org.opendaylight.protocol.bgp.linkstate.nlri.LinkstateNlriParser;
18 import org.opendaylight.protocol.bgp.rib.spi.AbstractRIBSupport;
19 import org.opendaylight.protocol.util.ByteArray;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.bgp.rib.rib.loc.rib.tables.routes.LinkstateRoutesCase;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.destination.CLinkstateDestination;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.LinkstateRoutes;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.routes.linkstate.routes.LinkstateRoute;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.attributes.mp.reach.nlri.advertized.routes.destination.type.destination.linkstate._case.DestinationLinkstate;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.tables.Routes;
26 import org.opendaylight.yangtools.yang.binding.DataObject;
27 import org.opendaylight.yangtools.yang.common.QName;
28 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
29 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
30 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
31 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
32 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
33 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
34 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
35 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerNode;
36 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
37 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
38 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
39 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
40 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
41 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeAttrBuilder;
42 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeBuilder;
43 import org.slf4j.Logger;
44 import org.slf4j.LoggerFactory;
46 final class LinkstateRIBSupport extends AbstractRIBSupport {
47 private static abstract class ApplyRoute {
48 abstract void apply(DOMDataWriteTransaction tx, YangInstanceIdentifier base, NodeIdentifierWithPredicates routeKey, DataContainerNode<?> route, final ContainerNode attributes);
51 private static final class DeleteRoute extends ApplyRoute {
53 void apply(final DOMDataWriteTransaction tx, final YangInstanceIdentifier base, final NodeIdentifierWithPredicates routeKey, final DataContainerNode<?> route, final ContainerNode attributes) {
54 tx.delete(LogicalDatastoreType.OPERATIONAL, base.node(routeKey));
58 private final class PutRoute extends ApplyRoute {
60 void apply(final DOMDataWriteTransaction tx, final YangInstanceIdentifier base, final NodeIdentifierWithPredicates routeKey,
61 final DataContainerNode<?> route, final ContainerNode attributes) {
62 final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> b = ImmutableNodes.mapEntryBuilder();
63 b.withNodeIdentifier(routeKey);
65 // FIXME: All route children, there should be a utility somewhere to do this
66 for (final DataContainerChild<? extends PathArgument, ?> child : route.getValue()) {
70 final DataContainerNodeAttrBuilder<NodeIdentifier, ContainerNode> cb = Builders.containerBuilder(attributes);
71 cb.withNodeIdentifier(routeAttributesIdentifier());
72 b.withChild(cb.build());
73 tx.put(LogicalDatastoreType.OPERATIONAL, base.node(routeKey), b.build());
77 private static final Logger LOG = LoggerFactory.getLogger(LinkstateRIBSupport.class);
79 private static final QName ROUTE_KEY = QName.cachedReference(QName.create(LinkstateRoute.QNAME, "route-key"));
80 private static final LinkstateRIBSupport SINGLETON = new LinkstateRIBSupport();
81 private static final ApplyRoute DELETE_ROUTE = new DeleteRoute();
83 private final ChoiceNode emptyRoutes = Builders.choiceBuilder()
84 .withNodeIdentifier(new NodeIdentifier(Routes.QNAME))
85 .addChild(Builders.containerBuilder()
86 .withNodeIdentifier(new NodeIdentifier(LinkstateRoutes.QNAME))
87 .addChild(ImmutableNodes.mapNodeBuilder(LinkstateRoute.QNAME).build()).build()).build();
88 private final NodeIdentifier destination = new NodeIdentifier(DestinationLinkstate.QNAME);
89 private final NodeIdentifier route = new NodeIdentifier(LinkstateRoute.QNAME);
90 private final NodeIdentifier nlriRoutesList = new NodeIdentifier(CLinkstateDestination.QNAME);
91 private final ApplyRoute putRoute = new PutRoute();
93 private LinkstateRIBSupport() {
94 super(LinkstateRoutesCase.class, LinkstateRoutes.class, LinkstateRoute.class);
97 static LinkstateRIBSupport getInstance() {
102 public ChoiceNode emptyRoutes() {
103 return this.emptyRoutes;
107 public ImmutableCollection<Class<? extends DataObject>> cacheableAttributeObjects() {
108 return ImmutableSet.of();
112 public ImmutableCollection<Class<? extends DataObject>> cacheableNlriObjects() {
113 return ImmutableSet.of();
117 protected void deleteDestinationRoutes(final DOMDataWriteTransaction tx, final YangInstanceIdentifier tablePath,
118 final ContainerNode destination) {
119 processDestination(tx, tablePath, destination, null, DELETE_ROUTE);
122 private void processDestination(final DOMDataWriteTransaction tx, final YangInstanceIdentifier tablePath,
123 final ContainerNode destination, final ContainerNode attributes, final ApplyRoute function) {
124 if (destination != null) {
125 final Optional<DataContainerChild<? extends PathArgument, ?>> maybeRoutes = destination.getChild(this.nlriRoutesList);
126 if (maybeRoutes.isPresent()) {
127 final DataContainerChild<? extends PathArgument, ?> routes = maybeRoutes.get();
128 if (routes instanceof UnkeyedListNode) {
129 final YangInstanceIdentifier base = tablePath.node(ROUTES).node(routesContainerIdentifier()).node(this.route);
130 for (final UnkeyedListEntryNode e : ((UnkeyedListNode)routes).getValue()) {
131 final NodeIdentifierWithPredicates routeKey = createRouteKey(e);
132 function.apply(tx, base, routeKey, e, attributes);
135 LOG.warn("Routes {} are not a map", routes);
142 protected void putDestinationRoutes(final DOMDataWriteTransaction tx, final YangInstanceIdentifier tablePath,
143 final ContainerNode destination, final ContainerNode attributes) {
144 processDestination(tx, tablePath, destination, attributes, this.putRoute);
147 private NodeIdentifierWithPredicates createRouteKey(final UnkeyedListEntryNode linkstate) {
148 final ByteBuf buffer = Unpooled.buffer();
149 LinkstateNlriParser.serializeNlri(linkstate, buffer);
150 return new NodeIdentifierWithPredicates(LinkstateRoute.QNAME, ROUTE_KEY, ByteArray.readAllBytes(buffer));
154 protected NodeIdentifier destinationContainerIdentifier() {
155 return this.destination;