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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.scheduledtasks;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.TimeUnit;
import org.openecomp.sdc.common.log.wrappers.Logger;
public abstract class AbstractScheduleTaskRunner {
private static final Logger log = Logger.getLogger(AbstractScheduleTaskRunner.class);
public abstract ExecutorService getExecutorService();
protected void shutdownExecutor() {
ExecutorService executorService = getExecutorService();
if (executorService == null) {
return;
}
executorService.shutdown(); // Disable new tasks from being submitted
try {
// Wait a while for existing tasks to terminate
if (!executorService.awaitTermination(60, TimeUnit.SECONDS)) {
executorService.shutdownNow(); // Cancel currently executing
// tasks
// Wait a while for tasks to respond to being cancelled
if (!executorService.awaitTermination(60, TimeUnit.SECONDS)) {
log.debug("Pool did not terminate");
}
}
} catch (InterruptedException ie) {
// (Re-)Cancel if current thread also interrupted
executorService.shutdownNow();
// Preserve interrupt status
Thread.currentThread().interrupt();
}
}
}
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