run In Background Thread - Java java.lang

Java examples for java.lang:Thread

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Description

run In Background Thread

Demo Code

/*******************************************************************************
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 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
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 * 3. Products derived from the software may not be called "Looking Glass", nor
 *    may "Looking Glass" appear in their name, without prior written permission
 *    of Washington University in St. Louis.
 *
 * 4. All advertising materials mentioning features or use of this software must
 *    display the following acknowledgement: "This product includes software
 *    developed by Washington University in St. Louis"
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 *    non-commercial, and academic use only. Redistributions of any program
 *    source code that utilizes The Sims 2 Assets must also retain the copyright
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//package com.java2s;

import java.util.concurrent.CancellationException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

public class Main {
    private static final ExecutorService workerPool = new ThreadPoolExecutor(
            0, Integer.MAX_VALUE, 60L, TimeUnit.SECONDS,
            new SynchronousQueue<Runnable>()) {

        @Override
        protected void afterExecute(Runnable r, Throwable t) {
            // We must make sure that we don't swallow exceptions, we must propagate them back.
            if ((t == null) && (r instanceof Future<?>)) {
                try {
                    Future<?> future = (Future<?>) r;
                    assert future.isDone();
                    future.get();
                } catch (CancellationException ce) {
                    t = ce;
                } catch (ExecutionException ee) {
                    t = ee.getCause();
                } catch (InterruptedException ie) {
                    Thread.currentThread().interrupt(); // ignore/reset
                }
            }
            if (t != null) {
                Thread.getDefaultUncaughtExceptionHandler()
                        .uncaughtException(Thread.currentThread(), t);
            }
        };
    };

    public static Future<?> runInBackground(Runnable run) {
        return workerPool.submit(run);
    }
}

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