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 org.apache.hadoop.hbase.HConstants; 021import org.apache.yetus.audience.InterfaceAudience; 022 023@InterfaceAudience.Private 024class AssignRegionAction extends BalanceAction { 025 private final int region; 026 private final int server; 027 028 public AssignRegionAction(int region, int server) { 029 super(Type.ASSIGN_REGION); 030 this.region = region; 031 this.server = server; 032 } 033 034 public int getRegion() { 035 return region; 036 } 037 038 public int getServer() { 039 return server; 040 } 041 042 @Override 043 public BalanceAction undoAction() { 044 // TODO implement this. This action is not being used by the StochasticLB for now 045 // in case it uses it, we should implement this function. 046 throw new UnsupportedOperationException(HConstants.NOT_IMPLEMENTED); 047 } 048 049 @Override 050 public String toString() { 051 return getType() + ": " + region + ":" + server; 052 } 053}