content: /**
   * 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 com.alibaba.jstorm.callback.impl;
  
  import com.alibaba.jstorm.daemon.nimbus.NimbusData;
  import com.alibaba.jstorm.daemon.nimbus.StatusType;
  import com.alibaba.jstorm.daemon.nimbus.metric.assignment.KillTopologyEvent;
  
  /**
   * The action when nimbus receives a killed command.
   * 1. change current topology status to killed
   * 2. wait for timeout seconds, do remove action, which removes topology from ZK
   *
   * @author Longda
   */
  public class KillTransitionCallback extends DelayStatusTransitionCallback {
  
      public KillTransitionCallback(NimbusData data, String topologyId) {
          super(data, topologyId, null, StatusType.killed, StatusType.remove);
      }
  
      @Override
      public <T> Object execute(T... args) {
          KillTopologyEvent.pushEvent(topologyId);
          return super.execute(args);
      }
  
  }
  