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.pcep.ietf.stateful07;
10 import static com.google.common.base.Preconditions.checkArgument;
11 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeIpv4Address;
12 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeShort;
13 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeUnsignedShort;
15 import io.netty.buffer.ByteBuf;
16 import io.netty.buffer.Unpooled;
17 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
18 import org.opendaylight.protocol.pcep.spi.TlvParser;
19 import org.opendaylight.protocol.pcep.spi.TlvSerializer;
20 import org.opendaylight.protocol.pcep.spi.TlvUtil;
21 import org.opendaylight.protocol.util.Ipv4Util;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.LspIdentifiers;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.LspIdentifiersBuilder;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.AddressFamily;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.address.family.Ipv4Case;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.address.family.Ipv4CaseBuilder;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.address.family.Ipv6Case;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.address.family.ipv4._case.Ipv4;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.address.family.ipv4._case.Ipv4Builder;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Tlv;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.Ipv4ExtendedTunnelId;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.LspId;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.TunnelId;
36 * Parser for {@link LspIdentifiers}.
38 public final class Stateful07LSPIdentifierIpv4TlvParser implements TlvParser, TlvSerializer {
40 public static final int TYPE = 18;
42 private static final int V4_LENGTH = 16;
45 public LspIdentifiers parseTlv(final ByteBuf buffer) throws PCEPDeserializerException {
49 checkArgument(buffer.readableBytes() == V4_LENGTH, "Length %s does not match LSP Identifiers Ipv4 tlv length.",
50 buffer.readableBytes());
51 final Ipv4Builder builder = new Ipv4Builder();
52 builder.setIpv4TunnelSenderAddress(Ipv4Util.noZoneAddressForByteBuf(buffer));
53 final LspId lspId = new LspId((long) buffer.readUnsignedShort());
54 final TunnelId tunnelId = new TunnelId(buffer.readUnsignedShort());
55 builder.setIpv4ExtendedTunnelId(new Ipv4ExtendedTunnelId(Ipv4Util.noZoneAddressForByteBuf(buffer)));
56 builder.setIpv4TunnelEndpointAddress(Ipv4Util.noZoneAddressForByteBuf(buffer));
57 final AddressFamily afi = new Ipv4CaseBuilder().setIpv4(builder.build()).build();
58 return new LspIdentifiersBuilder().setAddressFamily(afi).setLspId(lspId).setTunnelId(tunnelId).build();
62 public void serializeTlv(final Tlv tlv, final ByteBuf buffer) {
63 checkArgument(tlv instanceof LspIdentifiers, "LspIdentifiersTlv is mandatory.");
64 final LspIdentifiers lsp = (LspIdentifiers) tlv;
65 final AddressFamily afi = lsp.getAddressFamily();
66 final ByteBuf body = Unpooled.buffer();
67 if (afi.getImplementedInterface().equals(Ipv6Case.class)) {
68 new Stateful07LSPIdentifierIpv6TlvParser().serializeTlv(tlv, buffer);
70 final Ipv4 ipv4 = ((Ipv4Case) afi).getIpv4();
71 checkArgument(ipv4.getIpv4TunnelSenderAddress() != null, "Ipv4TunnelSenderAddress is mandatory.");
72 writeIpv4Address(ipv4.getIpv4TunnelSenderAddress(), body);
73 checkArgument(lsp.getLspId() != null, "LspId is mandatory.");
74 writeShort(lsp.getLspId().getValue().shortValue(), body);
75 checkArgument(lsp.getTunnelId() != null, "TunnelId is mandatory.");
76 writeUnsignedShort(lsp.getTunnelId().getValue(), body);
77 checkArgument(ipv4.getIpv4ExtendedTunnelId() != null, "Ipv4ExtendedTunnelId is mandatory.");
78 writeIpv4Address(ipv4.getIpv4ExtendedTunnelId(), body);
79 checkArgument(ipv4.getIpv4TunnelEndpointAddress() != null, "Ipv4TunnelEndpointAddress is mandatory.");
80 writeIpv4Address(ipv4.getIpv4TunnelEndpointAddress(), body);
81 TlvUtil.formatTlv(TYPE, body, buffer);