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.impl.nlri;
10 import static com.google.common.base.Preconditions.checkArgument;
11 import static org.opendaylight.protocol.bgp.evpn.impl.nlri.NlriModelUtil.extractOrigRouteIp;
13 import io.netty.buffer.ByteBuf;
14 import io.netty.buffer.Unpooled;
15 import org.opendaylight.bgp.concepts.IpAddressUtil;
16 import org.opendaylight.protocol.bgp.evpn.spi.pojo.SimpleEsiTypeRegistry;
17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddressNoZone;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.NlriType;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.es.route.EsRoute;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.es.route.EsRouteBuilder;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.esi.Esi;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.evpn.EvpnChoice;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.evpn.evpn.choice.EsRouteCase;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.evpn.evpn.choice.EsRouteCaseBuilder;
25 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
26 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
28 final class EthSegRParser extends AbstractEvpnNlri {
29 static final NodeIdentifier ES_ROUTE_NID = new NodeIdentifier(EsRoute.QNAME);
30 private static final int CONTENT_LENGTH = 15;
31 private static final int CONTENT_LENGTH2 = 27;
34 public EvpnChoice parseEvpn(final ByteBuf buffer) {
35 checkArgument(buffer.readableBytes() == CONTENT_LENGTH || buffer.readableBytes() == CONTENT_LENGTH2,
36 "Wrong length of array of bytes. Passed: %s ;", buffer);
38 final Esi esi = SimpleEsiTypeRegistry.getInstance().parseEsi(buffer.readSlice(ESI_SIZE));
39 final IpAddressNoZone ip = IpAddressUtil.addressForByteBuf(buffer);
41 final EsRouteBuilder builder = new EsRouteBuilder().setEsi(esi).setOrigRouteIp(ip);
42 return new EsRouteCaseBuilder().setEsRoute(builder.build()).build();
46 protected NlriType getType() {
47 return NlriType.EthSeg;
51 public ByteBuf serializeBody(final EvpnChoice evpnInput) {
52 checkArgument(evpnInput instanceof EsRouteCase, "Unknown evpn instance. Passed %s. Needed EsRouteCase.",
53 evpnInput.getClass());
54 final EsRoute evpn = ((EsRouteCase) evpnInput).getEsRoute();
55 final ByteBuf body = Unpooled.buffer();
56 SimpleEsiTypeRegistry.getInstance().serializeEsi(evpn.getEsi(), body);
57 final ByteBuf orig = IpAddressUtil.bytesFor(evpn.getOrigRouteIp());
58 checkArgument(orig.readableBytes() > 0);
59 body.writeBytes(orig);
64 public EvpnChoice serializeEvpnModel(final ContainerNode evpnCase) {
65 return createRouteKey(evpnCase);
69 public EvpnChoice createRouteKey(final ContainerNode evpn) {
70 final EsRouteBuilder builder = new EsRouteBuilder();
71 builder.setEsi(serializeEsi(evpn));
72 builder.setOrigRouteIp(extractOrigRouteIp(evpn));
73 return new EsRouteCaseBuilder().setEsRoute(builder.build()).build();