openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/protocol/deserialization/match/Ipv6ExtHeaderEntryDeserializer.java

   1 /*
   2  * Copyright (c) 2016 Pantheon Technologies s.r.o. 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.openflowplugin.impl.protocol.deserialization.match;
   9
  10 import static org.opendaylight.yangtools.yang.common.netty.ByteBufUtils.readUint16;
  11
  12 import io.netty.buffer.ByteBuf;
  13 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.ipv6.match.fields.Ipv6ExtHeaderBuilder;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.Ipv6Match;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.Ipv6MatchBuilder;
  17
  18 public class Ipv6ExtHeaderEntryDeserializer extends AbstractMatchEntryDeserializer {
  19     @Override
  20     public void deserializeEntry(final ByteBuf message, final MatchBuilder builder) {
  21         final boolean hasMask = processHeader(message);
  22         final Ipv6ExtHeaderBuilder extHeaderBuilder = new Ipv6ExtHeaderBuilder()
  23             .setIpv6Exthdr(readUint16(message));
  24
  25         if (hasMask) {
  26             extHeaderBuilder.setIpv6ExthdrMask(readUint16(message));
  27         }
  28
  29         if (builder.getLayer3Match() == null) {
  30             builder.setLayer3Match(new Ipv6MatchBuilder()
  31                     .setIpv6ExtHeader(extHeaderBuilder.build())
  32                     .build());
  33         } else if (builder.getLayer3Match() instanceof Ipv6Match
  34                 && ((Ipv6Match) builder.getLayer3Match()).getIpv6ExtHeader() == null) {
  35             final Ipv6Match match = (Ipv6Match) builder.getLayer3Match();
  36             builder.setLayer3Match(new Ipv6MatchBuilder(match)
  37                     .setIpv6ExtHeader(extHeaderBuilder.build())
  38                     .build());
  39         } else {
  40             throwErrorOnMalformed(builder, "layer3Match", "ipv6ExtHeader");
  41         }
  42     }
  43 }