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