openflowjava/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/serialization/factories/ExperimenterInputMessageFactory.java

   1 /*
   2  * Copyright (c) 2013 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 package org.opendaylight.openflowjava.protocol.impl.serialization.factories;
   9
  10 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  11 import io.netty.buffer.ByteBuf;
  12 import java.util.Objects;
  13 import org.opendaylight.openflowjava.protocol.api.extensibility.OFSerializer;
  14 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistry;
  15 import org.opendaylight.openflowjava.protocol.api.extensibility.SerializerRegistryInjector;
  16 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  17 import org.opendaylight.openflowjava.util.ByteBufUtils;
  18 import org.opendaylight.openflowjava.util.ExperimenterSerializerKeyFactory;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.ExperimenterOfMessage;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.experimenter.core.ExperimenterDataOfChoice;
  21 import org.opendaylight.yangtools.yang.common.Uint32;
  22
  23 /**
  24  * Translates Experimenter messages (both: symmetric request and single reply).
  25  *
  26  * @author michal.polkorab
  27  */
  28 public class ExperimenterInputMessageFactory implements OFSerializer<ExperimenterOfMessage>,
  29         SerializerRegistryInjector {
  30
  31     private SerializerRegistry registry;
  32
  33     /** Code type of symmetric Experimenter message. */
  34     private static final byte MESSAGE_TYPE = 4;
  35
  36     @Override
  37     @SuppressFBWarnings("UWF_FIELD_NOT_INITIALIZED_IN_CONSTRUCTOR") // FB doesn't recognize Objects.requireNonNull
  38     public void serialize(final ExperimenterOfMessage message, final ByteBuf outBuffer) {
  39         Objects.requireNonNull(registry);
  40
  41         Uint32 expId = message.getExperimenter().getValue();
  42         final OFSerializer<ExperimenterDataOfChoice> serializer = registry.getSerializer(
  43                 ExperimenterSerializerKeyFactory.createExperimenterMessageSerializerKey(
  44                         EncodeConstants.OF_VERSION_1_3, expId, message.getExpType().longValue()));
  45         ByteBufUtils.writeOFHeader(MESSAGE_TYPE, message, outBuffer, EncodeConstants.EMPTY_LENGTH);
  46
  47         // write experimenterId and type
  48         outBuffer.writeInt(message.getExperimenter().getValue().intValue());
  49         outBuffer.writeInt(message.getExpType().intValue());
  50
  51         serializer.serialize(message.getExperimenterDataOfChoice(), outBuffer);
  52         ByteBufUtils.updateOFHeaderLength(outBuffer);
  53     }
  54
  55     @Override
  56     public void injectSerializerRegistry(final SerializerRegistry serializerRegistry) {
  57         this.registry = serializerRegistry;
  58     }
  59 }