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 com.google.common.base.Preconditions;
  12 import java.io.IOException;
  13 import java.io.ObjectInput;
  14 import java.io.ObjectOutput;
  15 import org.opendaylight.controller.cluster.datastore.DataStoreVersions;
  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     private boolean canCommit;
  24
  25     public CanCommitTransactionReply() {
  26     }
  27
  28     private CanCommitTransactionReply(final boolean canCommit, final short version) {
  29         super(version);
  30         this.canCommit = canCommit;
  31     }
  32
  33     public boolean getCanCommit() {
  34         return canCommit;
  35     }
  36
  37     @Override
  38     public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
  39         super.readExternal(in);
  40         canCommit = in.readBoolean();
  41     }
  42
  43     @Override
  44     public void writeExternal(ObjectOutput out) throws IOException {
  45         super.writeExternal(out);
  46         out.writeBoolean(canCommit);
  47     }
  48
  49     @Override
  50     public String toString() {
  51         return "CanCommitTransactionReply [canCommit=" + canCommit + ", version=" + getVersion() + "]";
  52     }
  53
  54     public static CanCommitTransactionReply yes(short version) {
  55         return version == DataStoreVersions.CURRENT_VERSION ? YES : new CanCommitTransactionReply(true, version);
  56     }
  57
  58     public static CanCommitTransactionReply no(short version) {
  59         return version == DataStoreVersions.CURRENT_VERSION ? NO : new CanCommitTransactionReply(false, version);
  60     }
  61
  62     public static CanCommitTransactionReply fromSerializable(final Object serializable) {
  63         Preconditions.checkArgument(serializable instanceof CanCommitTransactionReply);
  64         return (CanCommitTransactionReply)serializable;
  65     }
  66
  67     public static boolean isSerializedType(Object message) {
  68         return message instanceof CanCommitTransactionReply;
  69     }
  70 }