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.alipay.remoting.util;
  
  import java.util.concurrent.Callable;
  import java.util.concurrent.ExecutionException;
  import java.util.concurrent.FutureTask;
  import java.util.concurrent.atomic.AtomicBoolean;
  
  /**
   * A customized FutureTask which can record whether the run method has been called.
   * @author tsui
   * @version $Id: RunStateRecordedFutureTask.java, v 0.1 2017-07-31 16:28 tsui Exp $
   */
  public class RunStateRecordedFutureTask<V> extends FutureTask<V> {
      private AtomicBoolean hasRun = new AtomicBoolean();
  
      public RunStateRecordedFutureTask(Callable<V> callable) {
          super(callable);
      }
  
      @Override
      public void run() {
          this.hasRun.set(true);
          super.run();
      }
  
      public V getAfterRun() throws InterruptedException, ExecutionException,
                            FutureTaskNotRunYetException, FutureTaskNotCompleted {
          if (!hasRun.get()) {
              throw new FutureTaskNotRunYetException();
          }
  
          if (!isDone()) {
              throw new FutureTaskNotCompleted();
          }
  
          return super.get();
      }
  }