/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.hadoop.hbase.master.balancer;

import org.apache.hadoop.hbase.HConstants;
import org.apache.yetus.audience.InterfaceAudience;

@InterfaceAudience.Private
class AssignRegionAction extends BalanceAction {
  private final int region;
  private final int server;

  public AssignRegionAction(int region, int server) {
    super(Type.ASSIGN_REGION);
    this.region = region;
    this.server = server;
  }

  public int getRegion() {
    return region;
  }

  public int getServer() {
    return server;
  }

  @Override
  public BalanceAction undoAction() {
    // TODO implement this. This action is not being used by the StochasticLB for now
    // in case it uses it, we should implement this function.
    throw new UnsupportedOperationException(HConstants.NOT_IMPLEMENTED);
  }

  @Override
  public String toString() {
    return getType() + ": " + region + ":" + server;
  }
}
