pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/tlv/LSPIdentifierIPv4TlvParser.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.protocol.pcep.impl.tlv;
   9
  10 import org.opendaylight.protocol.concepts.Ipv4Util;
  11 import org.opendaylight.protocol.pcep.PCEPDeserializerException;
  12 import org.opendaylight.protocol.pcep.spi.TlvParser;
  13 import org.opendaylight.protocol.pcep.spi.TlvSerializer;
  14 import org.opendaylight.protocol.util.ByteArray;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.LspIdentifiersTlv;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Tlv;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.identifiers.tlv.AddressFamily;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.identifiers.tlv.address.family.Ipv4;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.identifiers.tlv.address.family.Ipv4Builder;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.identifiers.tlv.address.family.Ipv6;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.object.tlvs.LspIdentifiersBuilder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.Ipv4ExtendedTunnelId;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.LspId;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.TunnelId;
  25
  26 /**
  27  * Parser for {@link LspIdentifiersTlv}
  28  */
  29 public class LSPIdentifierIPv4TlvParser implements TlvParser, TlvSerializer {
  30
  31         public static final int TYPE = 18;
  32
  33         private static final int IP_F_LENGTH = 4;
  34         private static final int LSP_ID_F_LENGTH = 2;
  35         private static final int TUNNEL_ID_F_LENGTH = 2;
  36         private static final int EX_TUNNEL_ID_F_LENGTH = 4;
  37
  38         @Override
  39         public LspIdentifiersTlv parseTlv(final byte[] valueBytes) throws PCEPDeserializerException {
  40                 int position = 0;
  41                 if (valueBytes == null || valueBytes.length == 0)
  42                         throw new IllegalArgumentException("Value bytes array is mandatory. Can't be null or empty.");
  43
  44                 final AddressFamily afi = new Ipv4Builder().setIpv4TunnelSenderAddress(
  45                                 Ipv4Util.addressForBytes(ByteArray.subByte(valueBytes, position, IP_F_LENGTH))).setIpv4ExtendedTunnelId(
  46                                 new Ipv4ExtendedTunnelId(Ipv4Util.addressForBytes(ByteArray.subByte(valueBytes, position += IP_F_LENGTH,
  47                                                 EX_TUNNEL_ID_F_LENGTH)))).build();
  48
  49                 return new LspIdentifiersBuilder().setAddressFamily(afi).setLspId(
  50                                 new LspId(ByteArray.bytesToLong(ByteArray.subByte(valueBytes, position += EX_TUNNEL_ID_F_LENGTH, LSP_ID_F_LENGTH)))).setTunnelId(
  51                                 new TunnelId(ByteArray.bytesToInt(ByteArray.subByte(valueBytes, position += LSP_ID_F_LENGTH, TUNNEL_ID_F_LENGTH)))).build();
  52         }
  53
  54         @Override
  55         public byte[] serializeTlv(final Tlv tlv) {
  56                 if (tlv == null)
  57                         throw new IllegalArgumentException("LspIdentifiersTlv is mandatory.");
  58                 final LspIdentifiersTlv lsp = (LspIdentifiersTlv) tlv;
  59                 final AddressFamily afi = lsp.getAddressFamily();
  60                 if (afi.getClass().equals(Ipv4.class)) {
  61                         final Ipv4 ipv4 = (Ipv4) afi;
  62                         // buffer.writeBytes(ipv4.getIpv4TunnelSenderAddress().getValue().getBytes());
  63                         // buffer.writeBytes(ByteArray.subByte(ByteArray.longToBytes(lsp.getLspId().getValue()), 6,
  64                         // LSP_ID_F_LENGTH));
  65                         // buffer.writeBytes(ByteArray.subByte(ByteArray.intToBytes(lsp.getTunnelId().getValue()), 2,
  66                         // TUNNEL_ID_F_LENGTH));
  67                         // buffer.writeBytes(ipv4.getIpv4TunnelSenderAddress().getValue().getBytes());
  68                 } else {
  69                         final Ipv6 ipv6 = (Ipv6) afi;
  70                         // buffer.writeBytes(ipv6.getIpv6TunnelSenderAddress().getValue().getBytes());
  71                         // buffer.writeBytes(ByteArray.subByte(ByteArray.longToBytes(lsp.getLspId().getValue()), 6,
  72                         // LSP_ID_F_LENGTH));
  73                         // buffer.writeBytes(ByteArray.subByte(ByteArray.intToBytes(lsp.getTunnelId().getValue()), 2,
  74                         // TUNNEL_ID_F_LENGTH));
  75                         // buffer.writeBytes(ipv6.getIpv6TunnelSenderAddress().getValue().getBytes());
  76                 }
  77                 // FIXME finish
  78                 return null;
  79         }
  80
  81         @Override
  82         public int getType() {
  83                 return TYPE;
  84         }
  85 }