2 * Copyright (c) 2013 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.parser.impl.message.update;
10 import com.google.common.base.Preconditions;
11 import io.netty.buffer.ByteBuf;
12 import java.util.ArrayList;
13 import java.util.List;
14 import org.opendaylight.protocol.bgp.parser.BGPParsingException;
15 import org.opendaylight.protocol.bgp.parser.spi.NlriParser;
16 import org.opendaylight.protocol.bgp.parser.spi.NlriSerializer;
17 import org.opendaylight.protocol.util.ByteArray;
18 import org.opendaylight.protocol.util.Ipv4Util;
19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Prefix;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.DestinationIpv4;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.DestinationIpv4Builder;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.destination.ipv4.Ipv4Prefixes;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.destination.ipv4.Ipv4PrefixesBuilder;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv4CaseBuilder;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.Attributes;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.update.Nlri;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlriBuilder;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlriBuilder;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.unreach.nlri.WithdrawnRoutesBuilder;
31 import org.opendaylight.yangtools.yang.binding.DataObject;
33 public final class Ipv4NlriParser implements NlriParser, NlriSerializer {
36 public void serializeAttribute(final DataObject attribute, final ByteBuf byteAggregator) {
37 Preconditions.checkArgument(attribute instanceof Attributes, "Attribute parameter is not a PathAttribute object.");
38 final Nlri nlri = (Nlri) attribute;
39 for (final Ipv4Prefix ipv4Prefix : nlri.getNlri()) {
40 byteAggregator.writeBytes(Ipv4Util.bytesForPrefix(ipv4Prefix));
44 private DestinationIpv4 prefixes(final ByteBuf nlri) {
45 final List<Ipv4Prefix> prefs = Ipv4Util.prefixListForBytes(ByteArray.readAllBytes(nlri));
46 final List<Ipv4Prefixes> prefixes = new ArrayList<>();
47 for (final Ipv4Prefix p : prefs) {
48 prefixes.add(new Ipv4PrefixesBuilder().setPrefix(p).build());
50 return new DestinationIpv4Builder().setIpv4Prefixes(prefixes).build();
54 public final void parseNlri(final ByteBuf nlri, final MpUnreachNlriBuilder builder) {
55 builder.setWithdrawnRoutes(new WithdrawnRoutesBuilder().setDestinationType(new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4CaseBuilder().setDestinationIpv4(
56 prefixes(nlri)).build()).build());
60 public final void parseNlri(final ByteBuf nlri, final MpReachNlriBuilder builder) throws BGPParsingException {
61 builder.setAdvertizedRoutes(new AdvertizedRoutesBuilder().setDestinationType(new DestinationIpv4CaseBuilder().setDestinationIpv4(prefixes(nlri)).build()).build());