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 io.netty.buffer.ByteBuf;
11 import io.netty.buffer.Unpooled;
12 import org.opendaylight.protocol.bgp.evpn.spi.EvpnParser;
13 import org.opendaylight.protocol.bgp.evpn.spi.EvpnSerializer;
14 import org.opendaylight.protocol.bgp.evpn.spi.pojo.SimpleEsiTypeRegistry;
15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.NlriType;
16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.esi.Esi;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.evpn.EvpnChoice;
18 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
19 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
20 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
22 abstract class AbstractEvpnNlri implements EvpnParser, EvpnSerializer {
24 static final int MAC_ADDRESS_LENGTH = 6;
25 static final int ESI_SIZE = 10;
26 private static final NodeIdentifier ESI_NID = NodeIdentifier.create(Esi.QNAME);
27 static final int ZERO_BYTE = 1;
30 public final ByteBuf serializeEvpn(final EvpnChoice evpn, final ByteBuf common) {
31 final ByteBuf output = Unpooled.buffer();
32 final ByteBuf body = serializeBody(evpn);
33 output.writeByte(getType().getIntValue());
34 output.writeByte(body.readableBytes() + common.readableBytes());
35 output.writeBytes(common);
36 output.writeBytes(body);
40 protected abstract NlriType getType();
42 protected abstract ByteBuf serializeBody(EvpnChoice evpn);
44 protected static Esi serializeEsi(final ContainerNode evpn) {
45 return SimpleEsiTypeRegistry.getInstance().parseEsiModel((ChoiceNode) evpn.getChild(ESI_NID).get());