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;
12 import io.netty.buffer.ByteBuf;
13 import io.netty.buffer.Unpooled;
14 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
15 import org.opendaylight.protocol.pcep.spi.TlvParser;
16 import org.opendaylight.protocol.pcep.spi.TlvSerializer;
17 import org.opendaylight.protocol.pcep.spi.TlvUtil;
18 import org.opendaylight.protocol.util.Ipv6Util;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.LspIdentifiers;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.LspIdentifiersBuilder;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.AddressFamily;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.address.family.Ipv6Case;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.address.family.Ipv6CaseBuilder;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.address.family.ipv6._case.Ipv6;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.address.family.ipv6._case.Ipv6Builder;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Tlv;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.Ipv6ExtendedTunnelId;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.LspId;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.TunnelId;
30 import org.opendaylight.yangtools.yang.common.Uint32;
31 import org.opendaylight.yangtools.yang.common.netty.ByteBufUtils;
34 * Parser for {@link LspIdentifiers}.
36 public final class Stateful07LSPIdentifierIpv6TlvParser implements TlvParser, TlvSerializer {
37 public static final int TYPE = 19;
39 private static final int V6_LENGTH = 52;
42 public LspIdentifiers parseTlv(final ByteBuf buffer) throws PCEPDeserializerException {
46 checkArgument(buffer.readableBytes() == V6_LENGTH, "Length %s does not match LSP Identifiers Ipv6 tlv length.",
47 buffer.readableBytes());
48 final Ipv6Builder builder = new Ipv6Builder();
49 builder.setIpv6TunnelSenderAddress(Ipv6Util.addressForByteBuf(buffer));
50 final LspId lspId = new LspId(Uint32.valueOf(buffer.readUnsignedShort()));
51 final TunnelId tunnelId = new TunnelId(ByteBufUtils.readUint16(buffer));
52 builder.setIpv6ExtendedTunnelId(new Ipv6ExtendedTunnelId(Ipv6Util.addressForByteBuf(buffer)));
53 builder.setIpv6TunnelEndpointAddress(Ipv6Util.addressForByteBuf(buffer));
54 final AddressFamily afi = new Ipv6CaseBuilder().setIpv6(builder.build()).build();
55 return new LspIdentifiersBuilder().setAddressFamily(afi).setLspId(lspId).setTunnelId(tunnelId).build();
59 public void serializeTlv(final Tlv tlv, final ByteBuf buffer) {
60 checkArgument(tlv instanceof LspIdentifiers, "LspIdentifiersTlv is mandatory.");
61 final LspIdentifiers lsp = (LspIdentifiers) tlv;
62 final ByteBuf body = Unpooled.buffer();
63 final Ipv6 ipv6 = ((Ipv6Case) lsp.getAddressFamily()).getIpv6();
64 checkArgument(ipv6.getIpv6TunnelSenderAddress() != null, "Ipv6TunnelSenderAddress is mandatory.");
65 Ipv6Util.writeIpv6Address(ipv6.getIpv6TunnelSenderAddress(), body);
67 final LspId lspId = lsp.getLspId();
68 checkArgument(lspId != null, "LspId is mandatory.");
69 body.writeShort(lspId.getValue().shortValue());
70 final TunnelId tunnelId = lsp.getTunnelId();
71 checkArgument(tunnelId != null, "TunnelId is mandatory.");
72 ByteBufUtils.write(body, tunnelId.getValue());
73 checkArgument(ipv6.getIpv6ExtendedTunnelId() != null, "Ipv6ExtendedTunnelId is mandatory.");
74 Ipv6Util.writeIpv6Address(ipv6.getIpv6ExtendedTunnelId(), body);
75 checkArgument(ipv6.getIpv6TunnelEndpointAddress() != null, "Ipv6TunnelEndpointAddress is mandatory.");
76 Ipv6Util.writeIpv6Address(ipv6.getIpv6TunnelEndpointAddress(), body);
77 TlvUtil.formatTlv(TYPE, body, buffer);