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DispatcherImpl.java
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DispatcherImpl.java
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/*
* Copyright 2007 Yusuke Yamamoto
*
* 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 twitter4j;
import twitter4j.conf.Configuration;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
/**
* @author Yusuke Yamamoto - yusuke at mac.com
* @since Twitter4J 2.1.2
*/
final class DispatcherImpl implements Dispatcher {
private final ExecutorService executorService;
private static final Logger logger = Logger.getLogger(DispatcherImpl.class);
private static final long SHUTDOWN_TIME = 5000;
public DispatcherImpl(final Configuration conf) {
executorService = Executors.newFixedThreadPool(conf.getAsyncNumThreads(),
new ThreadFactory() {
int count = 0;
@Override
public Thread newThread(Runnable r) {
Thread thread = new Thread(r);
thread.setName(String.format("Twitter4J Async Dispatcher[%d]", count++));
thread.setDaemon(conf.isDaemonEnabled());
return thread;
}
}
);
Runtime.getRuntime().addShutdownHook(new Thread() {
@Override
public void run() {
executorService.shutdown();
}
});
}
@Override
public synchronized void invokeLater(Runnable task) {
executorService.execute(task);
}
@Override
public synchronized void shutdown() {
executorService.shutdown();
try {
if (!executorService.awaitTermination(SHUTDOWN_TIME, TimeUnit.MILLISECONDS)) {
executorService.shutdownNow();
}
} catch (InterruptedException e) {
logger.warn(e.getMessage());
}
}
}