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
9 package org.opendaylight.protocol.bgp.labeled.unicast;
11 import com.google.common.base.Optional;
12 import com.google.common.collect.ImmutableCollection;
13 import com.google.common.collect.ImmutableSet;
14 import io.netty.buffer.ByteBuf;
15 import io.netty.buffer.Unpooled;
16 import java.util.ArrayList;
17 import java.util.Collection;
18 import java.util.Collections;
19 import java.util.List;
20 import java.util.stream.Collectors;
21 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
22 import org.opendaylight.protocol.bgp.parser.spi.PathIdUtil;
23 import org.opendaylight.protocol.bgp.rib.spi.MultiPathAbstractRIBSupport;
24 import org.opendaylight.protocol.util.ByteArray;
25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.labeled.unicast.rev171207.labeled.unicast.LabelStack;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.labeled.unicast.rev171207.labeled.unicast.LabelStackBuilder;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.labeled.unicast.rev171207.labeled.unicast.destination.CLabeledUnicastDestination;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.labeled.unicast.rev171207.labeled.unicast.destination.CLabeledUnicastDestinationBuilder;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev171207.Route;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev171207.rib.tables.Routes;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.AddressFamily;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.SubsequentAddressFamily;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.MplsLabel;
35 import org.opendaylight.yangtools.yang.binding.DataObject;
36 import org.opendaylight.yangtools.yang.common.QName;
37 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
38 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
39 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
40 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
41 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
42 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
43 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerNode;
44 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
45 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
46 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
47 import org.slf4j.Logger;
48 import org.slf4j.LoggerFactory;
50 abstract class AbstractLabeledUnicastRIBSupport extends MultiPathAbstractRIBSupport {
51 private static final NodeIdentifier PREFIX_TYPE_NID = NodeIdentifier.create(QName.create(CLabeledUnicastDestination.QNAME, "prefix").intern());
52 private static final NodeIdentifier LABEL_STACK_NID = NodeIdentifier.create(QName.create(CLabeledUnicastDestination.QNAME, "label-stack").intern());
53 private static final NodeIdentifier LV_NID = NodeIdentifier.create(QName.create(CLabeledUnicastDestination.QNAME, "label-value").intern());
54 private static final NodeIdentifier NLRI_ROUTES_LIST = NodeIdentifier.create(CLabeledUnicastDestination.QNAME);
55 private static final Logger LOG = LoggerFactory.getLogger(AbstractLabeledUnicastRIBSupport.class);
58 * Default constructor. Requires the QName of the container augmented under the routes choice
59 * node in instantiations of the rib grouping. It is assumed that this container is defined by
60 * the same model which populates it with route grouping instantiation, and by extension with
61 * the route attributes container.
62 * @param cazeClass Binding class of the AFI/SAFI-specific case statement, must not be null
63 * @param containerClass Binding class of the container in routes choice, must not be null.
64 * @param listClass Binding class of the route list, nust not be null;
65 * @param addressFamilyClass address Family Class
66 * @param safiClass SubsequentAddressFamily
67 * @param destinationQname destination Qname
69 AbstractLabeledUnicastRIBSupport(final Class<? extends Routes> cazeClass, final Class<? extends DataObject> containerClass,
70 final Class<? extends Route> listClass, final Class<? extends AddressFamily> addressFamilyClass,
71 final Class<? extends SubsequentAddressFamily> safiClass, final QName destinationQname) {
72 super(cazeClass, containerClass, listClass, addressFamilyClass, safiClass, "route-key", destinationQname);
76 public ImmutableCollection<Class<? extends DataObject>> cacheableAttributeObjects() {
77 return ImmutableSet.of();
81 public ImmutableCollection<Class<? extends DataObject>> cacheableNlriObjects() {
82 return ImmutableSet.of();
86 public boolean isComplexRoute() {
91 protected void processDestination(final DOMDataWriteTransaction tx, final YangInstanceIdentifier routesPath,
92 final ContainerNode destination, final ContainerNode attributes, final ApplyRoute function) {
93 if (destination != null) {
94 final Optional<DataContainerChild<? extends PathArgument, ?>> maybeRoutes = destination.getChild(NLRI_ROUTES_LIST);
95 if (maybeRoutes.isPresent()) {
96 final DataContainerChild<? extends PathArgument, ?> routes = maybeRoutes.get();
97 if (routes instanceof UnkeyedListNode) {
98 final YangInstanceIdentifier base = routesPath.node(routesContainerIdentifier()).node(routeNid());
99 for (final UnkeyedListEntryNode e : ((UnkeyedListNode) routes).getValue()) {
100 final NodeIdentifierWithPredicates routeKey = createRouteKey(e);
101 function.apply(tx, base, routeKey, e, attributes);
104 LOG.warn("Routes {} are not a map", routes);
111 protected List<CLabeledUnicastDestination> extractRoutes(final Collection<MapEntryNode> routes) {
112 return routes.stream().map(this::extractCLabeledUnicastDestination).collect(Collectors.toList());
115 private NodeIdentifierWithPredicates createRouteKey(final UnkeyedListEntryNode labeledUnicast) {
116 final ByteBuf buffer = Unpooled.buffer();
118 final CLabeledUnicastDestination dest = extractCLabeledUnicastDestination(labeledUnicast);
119 LUNlriParser.serializeNlri(Collections.singletonList(dest), false, buffer);
120 final String routeKeyValue = ByteArray.encodeBase64(buffer);
121 final Optional<DataContainerChild<? extends PathArgument, ?>> maybePathIdLeaf = labeledUnicast.getChild(routePathIdNid());
122 final NodeIdentifierWithPredicates routeKey = PathIdUtil.createNidKey(routeQName(), routeKeyQName(), pathIdQName(), routeKeyValue, maybePathIdLeaf);
127 * Conversion from DataContainer to LabeledUnicastDestination Object
129 * @param route DataContainer
130 * @return LabeledUnicastDestination Object
132 private CLabeledUnicastDestination extractCLabeledUnicastDestination(final DataContainerNode<? extends PathArgument> route) {
133 final CLabeledUnicastDestinationBuilder builder = new CLabeledUnicastDestinationBuilder();
134 builder.setPrefix(extractPrefix(route, PREFIX_TYPE_NID));
135 builder.setLabelStack(extractLabel(route, LABEL_STACK_NID, LV_NID));
136 builder.setPathId(PathIdUtil.buildPathId(route, routePathIdNid()));
137 return builder.build();
140 protected abstract IpPrefix extractPrefix(final DataContainerNode<? extends PathArgument> route, final NodeIdentifier prefixTypeNid);
142 public static List<LabelStack> extractLabel(final DataContainerNode<? extends PathArgument> route, final NodeIdentifier labelStackNid,
143 final NodeIdentifier labelValueNid) {
144 final List<LabelStack> labels = new ArrayList<>();
145 final Optional<DataContainerChild<? extends PathArgument, ?>> labelStacks = route.getChild(labelStackNid);
146 if (labelStacks.isPresent()) {
147 for (final UnkeyedListEntryNode label : ((UnkeyedListNode) labelStacks.get()).getValue()) {
148 final Optional<DataContainerChild<? extends PathArgument, ?>> labelStack = label.getChild(labelValueNid);
149 if (labelStack.isPresent()) {
150 final LabelStackBuilder labelStackbuilder = new LabelStackBuilder();
151 labelStackbuilder.setLabelValue(new MplsLabel((Long) labelStack.get().getValue()));
152 labels.add(labelStackbuilder.build());