001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.hbase.master.balancer; 019 020import java.io.Serializable; 021import org.apache.hadoop.hbase.ServerName; 022import org.apache.yetus.audience.InterfaceAudience; 023 024/** 025 * Data structure that holds servername and 'load'. 026 */ 027@InterfaceAudience.Private 028class ServerAndLoad implements Comparable<ServerAndLoad>, Serializable { 029 private static final long serialVersionUID = 2735470854607296965L; 030 private final ServerName sn; 031 private final int load; 032 033 ServerAndLoad(final ServerName sn, final int load) { 034 this.sn = sn; 035 this.load = load; 036 } 037 038 ServerName getServerName() { 039 return this.sn; 040 } 041 042 int getLoad() { 043 return this.load; 044 } 045 046 @Override 047 public int compareTo(ServerAndLoad other) { 048 int diff = this.load - other.load; 049 return diff != 0 ? diff : this.sn.compareTo(other.getServerName()); 050 } 051 052 @Override 053 public int hashCode() { 054 int result = load; 055 result = 31 * result + ((sn == null) ? 0 : sn.hashCode()); 056 return result; 057 } 058 059 @Override 060 public boolean equals(Object o) { 061 if (o instanceof ServerAndLoad) { 062 ServerAndLoad sl = (ServerAndLoad) o; 063 return this.compareTo(sl) == 0; 064 } 065 return false; 066 } 067 068 @Override 069 public String toString() { 070 return "server=" + sn + " , load=" + load; 071 } 072}