extension/openflowjava-extension-nicira/src/main/java/org/opendaylight/openflowjava/nx/codec/match/NshTtlCodec.java

   1 /*
   2  * Copyright (c) 2018 SUSE LINUX GmbH.  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.openflowjava.nx.codec.match;
   9
  10 import static org.opendaylight.yangtools.yang.common.netty.ByteBufUtils.readUint8;
  11
  12 import io.netty.buffer.ByteBuf;
  13 import org.opendaylight.openflowjava.nx.api.NiciraConstants;
  14 import org.opendaylight.openflowjava.protocol.api.keys.MatchEntryDeserializerKey;
  15 import org.opendaylight.openflowjava.protocol.api.keys.MatchEntrySerializerKey;
  16 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.ExperimenterClass;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.MatchField;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxNshTtl;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.ofj.aug.nx.exp.match.NxExpMatchEntryValue;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.ofj.aug.nx.exp.match.nx.exp.match.entry.value.NshTtlCaseValue;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.ofj.aug.nx.exp.match.nx.exp.match.entry.value.NshTtlCaseValueBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.ofj.nxm.nx.match.nsh.ttl.grouping.NshTtlValuesBuilder;
  24 import org.opendaylight.yangtools.yang.common.Uint32;
  25
  26 public class NshTtlCodec extends AbstractExperimenterMatchCodec {
  27
  28     private static final int VALUE_LENGTH = Byte.BYTES;
  29     private static final int NXM_FIELD_CODE = 10;
  30     public static final MatchEntrySerializerKey<ExperimenterClass, NxmNxNshTtl> SERIALIZER_KEY =
  31             createSerializerKey(EncodeConstants.OF_VERSION_1_3, NiciraConstants.NX_NSH_VENDOR_ID, NxmNxNshTtl.VALUE);
  32     public static final MatchEntryDeserializerKey DESERIALIZER_KEY =
  33             createDeserializerKey(EncodeConstants.OF_VERSION_1_3, NiciraConstants.NX_NSH_VENDOR_ID, NXM_FIELD_CODE);
  34
  35     @Override
  36     protected void serializeValue(final NxExpMatchEntryValue value, final boolean hasMask, final ByteBuf outBuffer) {
  37         final var nshTtlValues = ((NshTtlCaseValue) value).getNshTtlValues();
  38         outBuffer.writeByte(nshTtlValues.getNshTtl().toJava());
  39         if (hasMask) {
  40             outBuffer.writeByte(nshTtlValues.getMask().toJava());
  41         }
  42     }
  43
  44     @Override
  45     protected NxExpMatchEntryValue deserializeValue(final ByteBuf message, final boolean hasMask) {
  46         return new NshTtlCaseValueBuilder()
  47             .setNshTtlValues(new NshTtlValuesBuilder()
  48                 .setNshTtl(readUint8(message))
  49                 .setMask(hasMask ? readUint8(message) : null)
  50                 .build())
  51             .build();
  52     }
  53
  54     @Override
  55     protected Uint32 getExperimenterId() {
  56         return NiciraConstants.NX_NSH_VENDOR_ID;
  57     }
  58
  59     @Override
  60     public int getValueLength() {
  61         return VALUE_LENGTH;
  62     }
  63
  64     @Override
  65     public int getNxmFieldCode() {
  66         return NXM_FIELD_CODE;
  67     }
  68
  69     @Override
  70     public MatchField getNxmField() {
  71         return NxmNxNshTtl.VALUE;
  72     }
  73 }