openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/protocol/serialization/match/Ipv6ExtHeaderEntrySerializer.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.serialization.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.api.util.OxmMatchConstants;
  15 import org.opendaylight.openflowplugin.openflow.md.util.ByteUtil;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.Match;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.ipv6.match.fields.Ipv6ExtHeader;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.Ipv6Match;
  19
  20 public class Ipv6ExtHeaderEntrySerializer extends AbstractMatchEntrySerializer {
  21
  22     @Override
  23     public void serialize(Match match, ByteBuf outBuffer) {
  24         super.serialize(match, outBuffer);
  25         final Ipv6ExtHeader ipv6ExtHeader = ((Ipv6Match) match.getLayer3Match()).getIpv6ExtHeader();
  26         outBuffer.writeShort(ipv6ExtHeader.getIpv6Exthdr());
  27
  28         if (getHasMask(match)) {
  29             writeMask(ByteUtil.unsignedShortToBytes(
  30                     ipv6ExtHeader.getIpv6ExthdrMask()),
  31                     outBuffer,
  32                     getValueLength());
  33         }
  34     }
  35
  36     @Override
  37     public boolean matchTypeCheck(Match match) {
  38         return Objects.nonNull(match.getLayer3Match())
  39                 && match.getLayer3Match() instanceof Ipv6Match
  40                 && Objects.nonNull(((Ipv6Match) match.getLayer3Match()).getIpv6ExtHeader());
  41     }
  42
  43     @Override
  44     protected boolean getHasMask(Match match) {
  45         return Objects.nonNull(((Ipv6Match) match.getLayer3Match()).getIpv6ExtHeader().getIpv6ExthdrMask());
  46     }
  47
  48     @Override
  49     protected int getOxmFieldCode() {
  50         return OxmMatchConstants.IPV6_EXTHDR;
  51     }
  52
  53     @Override
  54     protected int getOxmClassCode() {
  55         return OxmMatchConstants.OPENFLOW_BASIC_CLASS;
  56     }
  57
  58     @Override
  59     protected int getValueLength() {
  60         return EncodeConstants.SIZE_OF_SHORT_IN_BYTES;
  61     }
  62
  63 }