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.evpn.spi.pojo;
10 import static com.google.common.base.Preconditions.checkArgument;
12 import com.google.common.collect.Iterables;
13 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
14 import io.netty.buffer.ByteBuf;
15 import java.util.Collection;
16 import org.opendaylight.protocol.bgp.evpn.spi.EvpnParser;
17 import org.opendaylight.protocol.bgp.evpn.spi.EvpnRegistry;
18 import org.opendaylight.protocol.bgp.evpn.spi.EvpnSerializer;
19 import org.opendaylight.protocol.concepts.HandlerRegistry;
20 import org.opendaylight.protocol.concepts.MultiRegistry;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev200120.NlriType;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev200120.evpn.EvpnChoice;
23 import org.opendaylight.yangtools.concepts.Registration;
24 import org.opendaylight.yangtools.yang.binding.DataContainer;
25 import org.opendaylight.yangtools.yang.common.QName;
26 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
27 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
28 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
29 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
30 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
32 public final class SimpleEvpnNlriRegistry implements EvpnRegistry {
33 private static final SimpleEvpnNlriRegistry SINGLETON = new SimpleEvpnNlriRegistry();
34 private final HandlerRegistry<DataContainer, EvpnParser, EvpnSerializer> handlers = new HandlerRegistry<>();
35 private final MultiRegistry<NodeIdentifier, EvpnSerializer> modelHandlers = new MultiRegistry<>();
37 private SimpleEvpnNlriRegistry() {
41 private interface SerializerInterface {
42 EvpnChoice check(EvpnSerializer serializer, ContainerNode cont);
45 public static SimpleEvpnNlriRegistry getInstance() {
49 public Registration registerNlriParser(final NlriType esiType, final EvpnParser parser) {
50 return this.handlers.registerParser(esiType.getIntValue(), parser);
53 public Registration registerNlriSerializer(final Class<? extends EvpnChoice> evpnClass,
54 final EvpnSerializer serializer) {
55 return this.handlers.registerSerializer(evpnClass, serializer);
58 public Registration registerNlriModelSerializer(final QName qname, final EvpnSerializer serializer) {
59 return this.modelHandlers.register(new NodeIdentifier(qname), serializer);
63 @SuppressFBWarnings(value = "NP_NONNULL_RETURN_VIOLATION", justification = "SB does not grok TYPE_USE")
64 public EvpnChoice parseEvpn(final NlriType type, final ByteBuf buffer) {
65 checkArgument(buffer != null && buffer.isReadable(), "Array of bytes is mandatory. Can't be null or empty.");
66 final EvpnParser parser = this.handlers.getParser(type.getIntValue());
67 return parser == null ? null : parser.parseEvpn(buffer);
71 public ByteBuf serializeEvpn(final EvpnChoice evpn, final ByteBuf common) {
72 final EvpnSerializer serializer = this.handlers.getSerializer(evpn.implementedInterface());
73 return serializer == null ? common : serializer.serializeEvpn(evpn, common);
77 public EvpnChoice serializeEvpnModel(final ChoiceNode evpnChoice) {
78 return getEvpnCase(evpnChoice, EvpnSerializer::serializeEvpnModel);
82 public EvpnChoice serializeEvpnRouteKey(final ChoiceNode evpnChoice) {
83 return getEvpnCase(evpnChoice, EvpnSerializer::createRouteKey);
86 private EvpnChoice getEvpnCase(final ChoiceNode evpnChoice, final SerializerInterface serializerInterface) {
87 checkArgument(evpnChoice != null, "Evpn case is mandatory, cannot be null");
88 final Collection<DataContainerChild<? extends PathArgument, ?>> value = evpnChoice.getValue();
89 checkArgument(!value.isEmpty(), "Evpn case is mandatyr, cannot be empty");
90 final ContainerNode cont = (ContainerNode) Iterables.getOnlyElement(value);
91 final EvpnSerializer serializer = this.modelHandlers.get(cont.getIdentifier());
92 return serializer == null ? null : serializerInterface.check(serializer, cont);