/*
* Copyright 2014 Loic Merckel
*
* 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.
*/
package io.uploader.drive.util;
import io.uploader.drive.AppEvent;
import java.util.Observable;
import java.util.Observer;
import java.util.concurrent.Executor;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javafx.concurrent.Service;
public abstract class ObserverService <T> extends Service <T> implements Observer {
private static final Logger logger = LoggerFactory.getLogger(ObserverService.class);
public ObserverService () {
this (5) ;
}
public ObserverService (int threadPoolSize) {
super () ;
if (threadPoolSize <= 0) {
throw new IllegalArgumentException () ;
}
setExecutor(Executors.newFixedThreadPool(threadPoolSize)) ;
}
@Override
public void update(Observable o, Object arg) {
if (arg != null) {
if (arg instanceof AppEvent.Event) {
if (((AppEvent.Event)arg) == AppEvent.Event.EXIT)
{
logger.info("Exit Event") ;
cancel() ;
Executor exe = getExecutor() ;
if (exe != null && exe instanceof ExecutorService) {
ThreadUtils.shutdownExecutor((ExecutorService) exe) ;
}
}
}
}
}
}