opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/identifiers/ShardTransactionIdentifier.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.identifiers;
  10
  11 import com.google.common.base.Preconditions;
  12
  13 public class ShardTransactionIdentifier {
  14     private final String remoteTransactionId;
  15
  16     public ShardTransactionIdentifier(String remoteTransactionId) {
  17         this.remoteTransactionId = Preconditions.checkNotNull(remoteTransactionId, "remoteTransactionId should not be null");
  18     }
  19
  20     public static Builder builder(){
  21         return new Builder();
  22     }
  23
  24     @Override
  25     public boolean equals(Object o) {
  26         if (this == o) {
  27             return true;
  28         }
  29         if (o == null || getClass() != o.getClass()) {
  30             return false;
  31         }
  32
  33         ShardTransactionIdentifier that = (ShardTransactionIdentifier) o;
  34
  35         if (!remoteTransactionId.equals(that.remoteTransactionId)) {
  36             return false;
  37         }
  38
  39         return true;
  40     }
  41
  42     @Override
  43     public int hashCode() {
  44         return remoteTransactionId.hashCode();
  45     }
  46
  47     @Override public String toString() {
  48         final StringBuilder sb =
  49             new StringBuilder();
  50         sb.append("shard-").append(remoteTransactionId);
  51         return sb.toString();
  52     }
  53
  54     public static class Builder {
  55         private String remoteTransactionId;
  56
  57         public Builder remoteTransactionId(String remoteTransactionId){
  58             this.remoteTransactionId = remoteTransactionId;
  59             return this;
  60         }
  61
  62         public ShardTransactionIdentifier build(){
  63             return new ShardTransactionIdentifier(remoteTransactionId);
  64         }
  65
  66     }
  67 }