openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/protocol/deserialization/match/Ipv6FlabelEntryDeserializer.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
   9 package org.opendaylight.openflowplugin.impl.protocol.deserialization.match;
  10
  11 import io.netty.buffer.ByteBuf;
  12 import java.util.Objects;
  13 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  14 import org.opendaylight.openflowjava.protocol.impl.deserialization.match.OxmDeserializerHelper;
  15 import org.opendaylight.openflowplugin.openflow.md.util.ByteUtil;
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6FlowLabel;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.ipv6.match.fields.Ipv6LabelBuilder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.Ipv6Match;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.Ipv6MatchBuilder;
  21
  22 public class Ipv6FlabelEntryDeserializer extends AbstractMatchEntryDeserializer {
  23
  24     @Override
  25     public void deserializeEntry(ByteBuf message, MatchBuilder builder) {
  26         final boolean hasMask = processHeader(message);
  27         final Ipv6LabelBuilder ipv6labelBuilder = new Ipv6LabelBuilder()
  28             .setIpv6Flabel(new Ipv6FlowLabel(message.readUnsignedInt()));
  29
  30         if (hasMask) {
  31             final byte[] mask = OxmDeserializerHelper.convertMask(message, EncodeConstants.SIZE_OF_INT_IN_BYTES);
  32             ipv6labelBuilder.setFlabelMask(new Ipv6FlowLabel(ByteUtil.bytesToUnsignedInt(mask)));
  33         }
  34
  35         if (Objects.isNull(builder.getLayer3Match())) {
  36             builder.setLayer3Match(new Ipv6MatchBuilder()
  37                     .setIpv6Label(ipv6labelBuilder.build())
  38                     .build());
  39         } else if (builder.getLayer3Match() instanceof Ipv6Match
  40             && Objects.isNull(((Ipv6Match) builder.getLayer3Match()).getIpv6Label())) {
  41             final Ipv6Match match = (Ipv6Match) builder.getLayer3Match();
  42             builder.setLayer3Match(new Ipv6MatchBuilder(match)
  43                     .setIpv6Label(ipv6labelBuilder.build())
  44                     .build());
  45         } else {
  46             throwErrorOnMalformed(builder, "layer3Match", "ipv6Label");
  47         }
  48
  49     }
  50
  51 }