opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/raft/protobuff/client/messages/CompositeModificationPayload.java

   1 /*
   2  * Copyright (c) 2014 Cisco Systems, 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
   9 package org.opendaylight.controller.cluster.raft.protobuff.client.messages;
  10
  11 import com.google.common.base.Preconditions;
  12 import com.google.protobuf.GeneratedMessage;
  13 import com.google.protobuf.InvalidProtocolBufferException;
  14 import com.google.protobuf.UnknownFieldSet;
  15 import java.io.Serializable;
  16 import java.util.HashMap;
  17 import java.util.Map;
  18 import org.opendaylight.controller.protobuff.messages.cluster.raft.AppendEntriesMessages;
  19 import org.opendaylight.controller.protobuff.messages.persistent.PersistentMessages;
  20
  21 @Deprecated
  22 public class CompositeModificationPayload extends Payload implements
  23     Serializable {
  24
  25     private final PersistentMessages.CompositeModification modification;
  26
  27     public CompositeModificationPayload(){
  28         modification = null;
  29     }
  30     public CompositeModificationPayload(Object modification){
  31         this.modification = (PersistentMessages.CompositeModification) Preconditions.checkNotNull(modification, "modification should not be null");
  32     }
  33
  34     @Override public Map<GeneratedMessage.GeneratedExtension<?, ?>, PersistentMessages.CompositeModification> encode() {
  35         Preconditions.checkState(modification!=null);
  36         Map<GeneratedMessage.GeneratedExtension<?, ?>, PersistentMessages.CompositeModification> map = new HashMap<>();
  37         map.put(
  38             org.opendaylight.controller.protobuff.messages.shard.CompositeModificationPayload.modification, this.modification);
  39         return map;
  40     }
  41
  42     @Override public Payload decode(
  43         AppendEntriesMessages.AppendEntries.ReplicatedLogEntry.Payload payload) {
  44         PersistentMessages.CompositeModification modification = payload
  45             .getExtension(
  46                 org.opendaylight.controller.protobuff.messages.shard.CompositeModificationPayload.modification);
  47
  48
  49
  50         // The extension was put in the unknown field.
  51         // This is because extensions need to be registered
  52         // see org.opendaylight.controller.mdsal.CompositeModificationPayload.registerAllExtensions
  53         // also see https://developers.google.com/protocol-buffers/docs/reference/java/com/google/protobuf/ExtensionRegistry
  54         // If that is not done then on the other end the extension shows up as an unknown field
  55         // Need to figure out a better way to do this
  56         if(payload.getUnknownFields().hasField(2)){
  57             UnknownFieldSet.Field field =
  58                 payload.getUnknownFields().getField(2);
  59
  60             try {
  61                 modification =
  62                     PersistentMessages.CompositeModification
  63                         .parseFrom(field.getLengthDelimitedList().get(0));
  64             } catch (InvalidProtocolBufferException e) {
  65
  66             }
  67         }
  68
  69         return new CompositeModificationPayload(modification);
  70     }
  71
  72     public Object getModification(){
  73         return this.modification;
  74     }
  75
  76     @Override
  77     public int size(){
  78         return this.modification.getSerializedSize();
  79     }
  80 }