org.bonitasoft.engine.service.BonitaTaskExecutor Maven / Gradle / Ivy
/**
* Copyright (C) 2019 Bonitasoft S.A.
* Bonitasoft, 32 rue Gustave Eiffel - 38000 Grenoble
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation
* version 2.1 of the License.
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301, USA.
**/
package org.bonitasoft.engine.service;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import org.bonitasoft.engine.commons.PlatformLifecycleService;
/**
* simply hold a cached thread pool executor to handle common asynchronous tasks
*/
public class BonitaTaskExecutor implements PlatformLifecycleService {
private ExecutorService bonitaTaskExecutor;
private void checkStarted() {
if (bonitaTaskExecutor == null) {
throw new IllegalStateException(this.getClass().getName() + " is not running");
}
}
public Future execute(RunnableWithException runnable) {
return execute(() -> {
runnable.run();
return null;
});
}
public Future execute(Callable callable) {
checkStarted();
return bonitaTaskExecutor.submit(callable);
}
@Override
public void start() {
if (bonitaTaskExecutor == null) {
bonitaTaskExecutor = Executors.newCachedThreadPool(r -> new Thread(r, "BonitaTaskExecutor"));
}
}
@Override
public void stop() {
if (bonitaTaskExecutor != null) {
bonitaTaskExecutor.shutdown();
bonitaTaskExecutor = null;
}
}
@Override
public void pause() {
}
@Override
public void resume() {
}
}