opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/messages/CanCommitTransactionReply.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.datastore.messages;
  10
  11 import java.io.IOException;
  12 import java.io.ObjectInput;
  13 import java.io.ObjectOutput;
  14 import org.opendaylight.controller.cluster.datastore.DataStoreVersions;
  15 import org.opendaylight.controller.protobuff.messages.cohort3pc.ThreePhaseCommitCohortMessages;
  16
  17 public class CanCommitTransactionReply extends VersionedExternalizableMessage {
  18     private static final CanCommitTransactionReply YES =
  19             new CanCommitTransactionReply(true, DataStoreVersions.CURRENT_VERSION);
  20     private static final CanCommitTransactionReply NO =
  21             new CanCommitTransactionReply(false, DataStoreVersions.CURRENT_VERSION);
  22
  23     @Deprecated
  24     private static final ThreePhaseCommitCohortMessages.CanCommitTransactionReply YES_SERIALIZED =
  25             ThreePhaseCommitCohortMessages.CanCommitTransactionReply.newBuilder().setCanCommit(true).build();
  26
  27     @Deprecated
  28     private static final ThreePhaseCommitCohortMessages.CanCommitTransactionReply NO_SERIALIZED =
  29             ThreePhaseCommitCohortMessages.CanCommitTransactionReply.newBuilder().setCanCommit(false).build();
  30
  31     private boolean canCommit;
  32
  33     public CanCommitTransactionReply() {
  34     }
  35
  36     private CanCommitTransactionReply(final boolean canCommit, final short version) {
  37         super(version);
  38         this.canCommit = canCommit;
  39     }
  40
  41     public boolean getCanCommit() {
  42         return canCommit;
  43     }
  44
  45     @Override
  46     public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
  47         super.readExternal(in);
  48         canCommit = in.readBoolean();
  49     }
  50
  51     @Override
  52     public void writeExternal(ObjectOutput out) throws IOException {
  53         super.writeExternal(out);
  54         out.writeBoolean(canCommit);
  55     }
  56
  57     @Deprecated
  58     @Override
  59     protected Object newLegacySerializedInstance() {
  60         return canCommit ? YES_SERIALIZED : NO_SERIALIZED;
  61     }
  62
  63     @Override
  64     public String toString() {
  65         return "CanCommitTransactionReply [canCommit=" + canCommit + ", version=" + getVersion() + "]";
  66     }
  67
  68     public static CanCommitTransactionReply yes(short version) {
  69         return version == DataStoreVersions.CURRENT_VERSION ? YES : new CanCommitTransactionReply(true, version);
  70     }
  71
  72     public static CanCommitTransactionReply no(short version) {
  73         return version == DataStoreVersions.CURRENT_VERSION ? NO : new CanCommitTransactionReply(false, version);
  74     }
  75
  76     public static CanCommitTransactionReply fromSerializable(final Object serializable) {
  77         if(serializable instanceof CanCommitTransactionReply) {
  78             return (CanCommitTransactionReply)serializable;
  79         } else {
  80             ThreePhaseCommitCohortMessages.CanCommitTransactionReply serialized =
  81                     (ThreePhaseCommitCohortMessages.CanCommitTransactionReply) serializable;
  82             return serialized.getCanCommit() ? YES : NO;
  83         }
  84     }
  85
  86     public static boolean isSerializedType(Object message) {
  87         return message instanceof CanCommitTransactionReply ||
  88                 message instanceof ThreePhaseCommitCohortMessages.CanCommitTransactionReply;
  89     }
  90 }