openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/protocol/serialization/multipart/tablefeatures/matchfield/AbstractMatchFieldSerializer.java

   1 /*
   2  * Copyright (c) 2017 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.multipart.tablefeatures.matchfield;
  10
  11 import io.netty.buffer.ByteBuf;
  12 import org.opendaylight.openflowjava.protocol.api.extensibility.OFSerializer;
  13 import org.opendaylight.yang.gen.v1.urn.opendaylight.table.types.rev131026.set.field.match.SetFieldMatch;
  14
  15 public abstract class AbstractMatchFieldSerializer implements OFSerializer<SetFieldMatch> {
  16
  17     @Override
  18     public void serialize(final SetFieldMatch setFieldMatch, final ByteBuf byteBuf) {
  19         byteBuf.writeShort(getOxmClassCode());
  20
  21         int fieldAndMask = getOxmFieldCode() << 1;
  22         int length = getValueLength();
  23
  24         if (setFieldMatch.isHasMask()) {
  25             fieldAndMask |= 1;
  26             length *= 2;
  27         }
  28
  29         byteBuf.writeByte(fieldAndMask);
  30         byteBuf.writeByte(length);
  31     }
  32
  33     protected abstract int getOxmClassCode();
  34     protected abstract int getOxmFieldCode();
  35     protected abstract int getValueLength();
  36
  37 }