Example usage for java.util.concurrent ThreadPoolExecutor getKeepAliveTime

Introduction

In this page you can find the example usage for java.util.concurrent ThreadPoolExecutor getKeepAliveTime.

Prototype

public long getKeepAliveTime(TimeUnit unit) 

Source Link

Document

Returns the thread keep-alive time, which is the amount of time that threads may remain idle before being terminated.

Usage

From source file:Main.java

/**
 * /* w ww  .  j  av  a 2 s  . c om*/
 */
protected static void decorateProperties(ThreadPoolExecutor executor, Properties properties) {
    if (executor != null) {
        if (properties != null) {
            properties.setProperty("thread-keep-alive-time",
                    Long.toString(executor.getKeepAliveTime(TimeUnit.MILLISECONDS)));

            properties.setProperty("thread-pool-size-largest", Integer.toString(executor.getLargestPoolSize()));

            properties.setProperty("thread-pool-size-minimum", Integer.toString(executor.getCorePoolSize()));

            properties.setProperty("thread-pool-size-maximum", Integer.toString(executor.getMaximumPoolSize()));

            properties.setProperty("thread-pool-size", Integer.toString(executor.getPoolSize()));

            properties.setProperty("runnable-completed-count", Long.toString(executor.getCompletedTaskCount()));

            properties.setProperty("runnable-active-count", Integer.toString(executor.getActiveCount()));

            properties.setProperty("queue-size", Integer.toString(executor.getQueue().size()));

            properties.setProperty("queue-capacity-remaining",
                    Integer.toString(executor.getQueue().remainingCapacity()));
        }
    }
}

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From source file:org.geotools.gce.imagemosaic.ImageMosaicReader.java

/**
 * Constructor.//from w  ww .ja  v a 2 s.  c o  m
 * 
 * @param source
 *            The source object.
 * @throws IOException
 * @throws UnsupportedEncodingException
 * 
 */
public ImageMosaicReader(Object source, Hints uHints) throws IOException {
    super(source, uHints);

    //
    // try to extract a multithreaded loader if available
    //
    if (this.hints.containsKey(Hints.EXECUTOR_SERVICE)) {
        final Object executor = uHints.get(Hints.EXECUTOR_SERVICE);
        if (executor != null && executor instanceof ExecutorService) {
            multiThreadedLoader = (ExecutorService) executor;
            if (LOGGER.isLoggable(Level.FINE)) {
                if (multiThreadedLoader instanceof ThreadPoolExecutor) {
                    final ThreadPoolExecutor tpe = (ThreadPoolExecutor) multiThreadedLoader;
                    LOGGER.fine("Using ThreadPoolExecutor with the following settings: " + "core pool size = "
                            + tpe.getCorePoolSize() + "\nmax pool size = " + tpe.getMaximumPoolSize()
                            + "\nkeep alive time " + tpe.getKeepAliveTime(TimeUnit.MILLISECONDS));
                }
            }
        }
    }
    if (this.hints.containsKey(Hints.MAX_ALLOWED_TILES))
        this.maxAllowedTiles = ((Integer) this.hints.get(Hints.MAX_ALLOWED_TILES));

    //
    // Check source
    //
    if (source instanceof ImageMosaicDescriptor) {
        initReaderFromDescriptor((ImageMosaicDescriptor) source, uHints);
    } else {
        try {
            initReaderFromURL(source, uHints);
        } catch (Exception e) {
            throw new DataSourceException(e);
        }
    }
}

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