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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdc.be.components.distribution.engine;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import org.openecomp.sdc.common.log.wrappers.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import java.lang.Thread.UncaughtExceptionHandler;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ThreadFactory;
@Component("executorFactory")
/**
* Allows to create next kinds of single thread executors: SingleThreadExecutor and SingleThreadScheduledExecutor
*/
public class ExecutorFactory {
private static final Logger logger = Logger.getLogger(EnvironmentsEngine.class.getName());
public ExecutorService create(String name, UncaughtExceptionHandler exceptionHandler){
logger.info("Going to create single thread executor. ");
ThreadFactory threadFactory = createThreadFactory(name, exceptionHandler);
return Executors.newSingleThreadExecutor(threadFactory);
}
public ScheduledExecutorService createScheduled(String name){
logger.info("Going to create single thread scheduled executor. ");
ThreadFactory threadFactory = createThreadFactory(name,
(t, e) -> LoggerFactory.getLogger(UncaughtExceptionHandler.class).error("An error occurred: ", e));
return Executors.newSingleThreadScheduledExecutor(threadFactory);
}
private ThreadFactory createThreadFactory(String name, UncaughtExceptionHandler exceptionHandler) {
String nameFormat = name + "-%d";
return new ThreadFactoryBuilder()
.setThreadFactory(Executors.defaultThreadFactory())
.setNameFormat(nameFormat)
.setUncaughtExceptionHandler(exceptionHandler)
.setDaemon(true)
.build();
}
}
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