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

   1 /*
   2  * Copyright (c) 2014 Red Hat, 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.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.NxmNxNsi;
  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.NsiCaseValue;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.ofj.aug.nx.exp.match.nx.exp.match.entry.value.NsiCaseValueBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.ofj.nxm.nx.match.nsi.grouping.NsiValues;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.ofj.nxm.nx.match.nsi.grouping.NsiValuesBuilder;
  25 import org.opendaylight.yangtools.yang.common.Uint32;
  26 import org.opendaylight.yangtools.yang.common.Uint8;
  27
  28 public class NsiCodec extends AbstractExperimenterMatchCodec {
  29
  30     private static final int VALUE_LENGTH = Byte.BYTES;
  31     private static final int NXM_FIELD_CODE = 5;
  32     public static final MatchEntrySerializerKey<ExperimenterClass, NxmNxNsi> SERIALIZER_KEY =
  33             createSerializerKey(
  34                     EncodeConstants.OF_VERSION_1_3,
  35                     NiciraConstants.NX_NSH_VENDOR_ID,
  36                     NxmNxNsi.VALUE);
  37     public static final MatchEntryDeserializerKey DESERIALIZER_KEY =
  38             createDeserializerKey(
  39                     EncodeConstants.OF_VERSION_1_3,
  40                     NiciraConstants.NX_NSH_VENDOR_ID,
  41                     NXM_FIELD_CODE);
  42
  43     @Override
  44     protected void serializeValue(final NxExpMatchEntryValue value, final boolean hasMask, final ByteBuf outBuffer) {
  45         NsiCaseValue nsiCaseValue = (NsiCaseValue) value;
  46         NsiValues nsiValues = nsiCaseValue.getNsiValues();
  47         outBuffer.writeByte(nsiValues.getNsi().toJava());
  48         if (hasMask) {
  49             outBuffer.writeByte(nsiValues.getMask().toJava());
  50         }
  51     }
  52
  53     @Override
  54     protected NxExpMatchEntryValue deserializeValue(final ByteBuf message, final boolean hasMask) {
  55         Uint8 value = readUint8(message);
  56         Uint8 mask = hasMask ? readUint8(message) : null;
  57         NsiValues nsiValues = new NsiValuesBuilder().setNsi(value).setMask(mask).build();
  58         return new NsiCaseValueBuilder().setNsiValues(nsiValues).build();
  59     }
  60
  61     @Override
  62     public int getNxmFieldCode() {
  63         return NXM_FIELD_CODE;
  64     }
  65
  66     @Override
  67     protected Uint32 getExperimenterId() {
  68         return NiciraConstants.NX_NSH_VENDOR_ID;
  69     }
  70
  71     @Override
  72     public int getValueLength() {
  73         return VALUE_LENGTH;
  74     }
  75
  76     @Override
  77     public MatchField getNxmField() {
  78         return NxmNxNsi.VALUE;
  79     }
  80 }