opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/identifiers/ShardIdentifier.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 ShardIdentifier {
  14     private final String shardName;
  15     private final String memberName;
  16     private final String type;
  17
  18
  19     public ShardIdentifier(String shardName, String memberName, String type) {
  20
  21         Preconditions.checkNotNull(shardName, "shardName should not be null");
  22         Preconditions.checkNotNull(memberName, "memberName should not be null");
  23         Preconditions.checkNotNull(type, "type should not be null");
  24
  25         this.shardName = shardName;
  26         this.memberName = memberName;
  27         this.type = type;
  28     }
  29
  30     @Override
  31     public boolean equals(Object o) {
  32         if (this == o) {
  33             return true;
  34         }
  35         if (o == null || getClass() != o.getClass()) {
  36             return false;
  37         }
  38
  39         ShardIdentifier that = (ShardIdentifier) o;
  40
  41         if (!memberName.equals(that.memberName)) {
  42             return false;
  43         }
  44         if (!shardName.equals(that.shardName)) {
  45             return false;
  46         }
  47         if (!type.equals(that.type)) {
  48             return false;
  49         }
  50
  51         return true;
  52     }
  53
  54     @Override
  55     public int hashCode() {
  56         int result = shardName.hashCode();
  57         result = 31 * result + memberName.hashCode();
  58         result = 31 * result + type.hashCode();
  59         return result;
  60     }
  61
  62     @Override public String toString() {
  63         StringBuilder builder = new StringBuilder();
  64         builder.append(memberName).append("-shard-").append(shardName).append("-").append(type);
  65         return builder.toString();
  66     }
  67
  68     public static Builder builder(){
  69         return new Builder();
  70     }
  71
  72     public static class Builder {
  73         private String shardName;
  74         private String memberName;
  75         private String type;
  76
  77         public ShardIdentifier build(){
  78             return new ShardIdentifier(shardName, memberName, type);
  79         }
  80
  81         public Builder shardName(String shardName){
  82             this.shardName = shardName;
  83             return this;
  84         }
  85
  86         public Builder memberName(String memberName){
  87             this.memberName = memberName;
  88             return this;
  89         }
  90
  91         public Builder type(String type){
  92             this.type = type;
  93             return this;
  94         }
  95
  96     }
  97 }