| package org.apache.cassandra.concurrent; |
| /* |
| * |
| * 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.*; |
| |
| import org.apache.log4j.Logger; |
| |
| public class RetryingScheduledThreadPoolExecutor extends ScheduledThreadPoolExecutor |
| { |
| protected static Logger logger = Logger.getLogger(RetryingScheduledThreadPoolExecutor.class); |
| |
| public RetryingScheduledThreadPoolExecutor(String threadPoolName, int priority) |
| { |
| this(1, threadPoolName, priority); |
| } |
| |
| public RetryingScheduledThreadPoolExecutor(int corePoolSize, String threadPoolName, int priority) |
| { |
| super(corePoolSize, new NamedThreadFactory(threadPoolName, priority)); |
| } |
| |
| public RetryingScheduledThreadPoolExecutor(String threadPoolName) |
| { |
| this(1, threadPoolName, Thread.NORM_PRIORITY); |
| } |
| |
| @Override |
| protected <V> RunnableScheduledFuture<V> decorateTask(Runnable runnable, RunnableScheduledFuture<V> task) |
| { |
| return new LoggingScheduledFuture<V>(task); |
| } |
| |
| private class LoggingScheduledFuture<V> implements RunnableScheduledFuture<V> |
| { |
| private final RunnableScheduledFuture<V> task; |
| |
| public LoggingScheduledFuture(RunnableScheduledFuture<V> task) |
| { |
| this.task = task; |
| } |
| |
| public boolean isPeriodic() |
| { |
| return task.isPeriodic(); |
| } |
| |
| public long getDelay(TimeUnit unit) |
| { |
| return task.getDelay(unit); |
| } |
| |
| public int compareTo(Delayed o) |
| { |
| return task.compareTo(o); |
| } |
| |
| public void run() |
| { |
| try |
| { |
| task.run(); |
| } |
| catch (Exception e) |
| { |
| logger.error("error running scheduled task", e); |
| } |
| } |
| |
| public boolean cancel(boolean mayInterruptIfRunning) |
| { |
| return task.cancel(mayInterruptIfRunning); |
| } |
| |
| public boolean isCancelled() |
| { |
| return task.isCancelled(); |
| } |
| |
| public boolean isDone() |
| { |
| return task.isDone(); |
| } |
| |
| public V get() throws InterruptedException, ExecutionException |
| { |
| return task.get(); |
| } |
| |
| public V get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException |
| { |
| return task.get(timeout, unit); |
| } |
| } |
| } |