storm-core/src/jvm/org/apache/storm/utils/ExtendedThreadPoolExecutor.java

package org.apache.storm.utils;

/**
 * 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.
 */

import java.util.concurrent.BlockingQueue;
import java.util.concurrent.CancellationException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.RejectedExecutionHandler;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

public class ExtendedThreadPoolExecutor extends ThreadPoolExecutor{

  public ExtendedThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue) {
    super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue);
  }

  public ExtendedThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory) {
    super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory);
  }

  public ExtendedThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, RejectedExecutionHandler handler) {
    super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, handler);
  }

  public ExtendedThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory, RejectedExecutionHandler handler) {
    super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory, handler);
  }

  @Override
  protected void afterExecute(Runnable r, Throwable t) {
    super.afterExecute(r, t);
    if (t == null && r instanceof Future<?>) {
      try {
        Object result = ((Future<?>) r).get();
      } catch (CancellationException ce) {
        t = ce;
      } catch (ExecutionException ee) {
        t = ee.getCause();
      } catch (InterruptedException ie) {
        // If future got interrupted exception, we want to interrupt parent thread itself.
        Thread.currentThread().interrupt();
      }
    }
    if (t != null) {
      Utils.handleUncaughtException(t);
    }
  }
}