openflowjava/openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/deserialization/factories/VendorMessageFactory.java

   1 /*
   2  * Copyright (c) 2014 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.openflowjava.protocol.impl.deserialization.factories;
  10
  11 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  12 import io.netty.buffer.ByteBuf;
  13 import java.util.Objects;
  14 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistry;
  15 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistryInjector;
  16 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
  17 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  18 import org.opendaylight.openflowjava.util.ExperimenterDeserializerKeyFactory;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.ExperimenterId;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.ExperimenterMessage;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.ExperimenterMessageBuilder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.experimenter.core.ExperimenterDataOfChoice;
  23
  24 /**
  25  * Translates ExperimenterMessages.
  26  *
  27  * @author michal.polkorab
  28  */
  29 public class VendorMessageFactory implements OFDeserializer<ExperimenterMessage>,
  30         DeserializerRegistryInjector {
  31
  32     private DeserializerRegistry deserializerRegistry;
  33
  34     @Override
  35     @SuppressFBWarnings("UWF_FIELD_NOT_INITIALIZED_IN_CONSTRUCTOR") // FB doesn't recognize Objects.requireNonNull
  36     public ExperimenterMessage deserialize(ByteBuf message) {
  37         Objects.requireNonNull(deserializerRegistry);
  38
  39         final long xid = message.readUnsignedInt();
  40         final long expId = message.readUnsignedInt();
  41         OFDeserializer<ExperimenterDataOfChoice> deserializer = deserializerRegistry.getDeserializer(
  42                 ExperimenterDeserializerKeyFactory.createVendorMessageDeserializerKey(
  43                         EncodeConstants.OF10_VERSION_ID, expId));
  44         final ExperimenterDataOfChoice vendorData = deserializer.deserialize(message);
  45
  46         final ExperimenterMessageBuilder messageBld = new ExperimenterMessageBuilder()
  47                 .setVersion((short) EncodeConstants.OF10_VERSION_ID)
  48                 .setXid(xid)
  49                 .setExperimenter(new ExperimenterId(expId))
  50                 .setExperimenterDataOfChoice(vendorData);
  51         return messageBld.build();
  52     }
  53
  54     @Override
  55     public void injectDeserializerRegistry(DeserializerRegistry registry) {
  56         this.deserializerRegistry = registry;
  57     }
  58 }