/*
* 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.tez.common;
import java.util.concurrent.ExecutorService;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
/**
* Interface to capture factory of ExecutorService.
*/
@Private
@Unstable
public interface TezExecutors {
/**
* Create a ExecutorService with the given parameters.
*
* @param parallelism Represents total number of tasks to be executed in parallel.
* @param threadNameFormat The name the thread should take when executing tasks from this executor
* @return An ExecutorService.
*/
ExecutorService createExecutorService(int parallelism, String threadNameFormat);
/**
* Shutdown all the ExecutorService created using this factory.
*/
void shutdown();
/**
* Shutdown all the ExecutorService created using this factory. It will discard any tasks which
* are not running and interrupt the running tasks.
*/
void shutdownNow();
}