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 org.opendaylight.protocol.util.ByteBufWriteUtil.writeIpv4Address;
11 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeShort;
12 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeUnsignedShort;
13 import com.google.common.base.Preconditions;
14 import io.netty.buffer.ByteBuf;
15 import io.netty.buffer.Unpooled;
16 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
17 import org.opendaylight.protocol.pcep.spi.TlvParser;
18 import org.opendaylight.protocol.pcep.spi.TlvSerializer;
19 import org.opendaylight.protocol.pcep.spi.TlvUtil;
20 import org.opendaylight.protocol.util.Ipv4Util;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.identifiers.tlv.LspIdentifiers;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.identifiers.tlv.LspIdentifiersBuilder;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.identifiers.tlv.lsp.identifiers.AddressFamily;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.identifiers.tlv.lsp.identifiers.address.family.Ipv4Case;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.identifiers.tlv.lsp.identifiers.address.family.Ipv4CaseBuilder;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.identifiers.tlv.lsp.identifiers.address.family.Ipv6Case;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.identifiers.tlv.lsp.identifiers.address.family.ipv4._case.Ipv4;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.identifiers.tlv.lsp.identifiers.address.family.ipv4._case.Ipv4Builder;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Tlv;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.Ipv4ExtendedTunnelId;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.LspId;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.TunnelId;
35 * Parser for {@link LspIdentifiers}
37 public final class Stateful07LSPIdentifierIpv4TlvParser implements TlvParser, TlvSerializer {
39 public static final int TYPE = 18;
41 private static final int V4_LENGTH = 16;
44 public LspIdentifiers parseTlv(final ByteBuf buffer) throws PCEPDeserializerException {
48 Preconditions.checkArgument(buffer.readableBytes() == V4_LENGTH, "Length %s does not match LSP Identifiers Ipv4 tlv length.", buffer.readableBytes());
49 final Ipv4Builder builder = new Ipv4Builder();
50 builder.setIpv4TunnelSenderAddress(Ipv4Util.addressForByteBuf(buffer));
51 final LspId lspId = new LspId((long) buffer.readUnsignedShort());
52 final TunnelId tunnelId = new TunnelId(buffer.readUnsignedShort());
53 builder.setIpv4ExtendedTunnelId(new Ipv4ExtendedTunnelId(Ipv4Util.addressForByteBuf(buffer)));
54 builder.setIpv4TunnelEndpointAddress(Ipv4Util.addressForByteBuf(buffer));
55 final AddressFamily afi = new Ipv4CaseBuilder().setIpv4(builder.build()).build();
56 return new LspIdentifiersBuilder().setAddressFamily(afi).setLspId(lspId).setTunnelId(tunnelId).build();
60 public void serializeTlv(final Tlv tlv, final ByteBuf buffer) {
61 Preconditions.checkArgument(tlv instanceof LspIdentifiers, "LspIdentifiersTlv is mandatory.");
62 final LspIdentifiers lsp = (LspIdentifiers) tlv;
63 final AddressFamily afi = lsp.getAddressFamily();
64 final ByteBuf body = Unpooled.buffer();
65 if (afi.getImplementedInterface().equals(Ipv6Case.class)) {
66 new Stateful07LSPIdentifierIpv6TlvParser().serializeTlv(tlv, buffer);
68 final Ipv4 ipv4 = ((Ipv4Case) afi).getIpv4();
69 Preconditions.checkArgument(ipv4.getIpv4TunnelSenderAddress() != null, "Ipv4TunnelSenderAddress is mandatory.");
70 writeIpv4Address(ipv4.getIpv4TunnelSenderAddress(), body);
71 Preconditions.checkArgument(lsp.getLspId() != null, "LspId is mandatory.");
72 writeShort(lsp.getLspId().getValue().shortValue(), body);
73 Preconditions.checkArgument(lsp.getTunnelId() != null, "TunnelId is mandatory.");
74 writeUnsignedShort(lsp.getTunnelId().getValue(), body);
75 Preconditions.checkArgument(ipv4.getIpv4ExtendedTunnelId() != null, "Ipv4ExtendedTunnelId is mandatory.");
76 writeIpv4Address(ipv4.getIpv4ExtendedTunnelId(), body);
77 Preconditions.checkArgument(ipv4.getIpv4TunnelEndpointAddress() != null, "Ipv4TunnelEndpointAddress is mandatory.");
78 writeIpv4Address(ipv4.getIpv4TunnelEndpointAddress(), body);
79 TlvUtil.formatTlv(TYPE, body, buffer);