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package com.sun.grizzly.util;
import java.util.List;
import java.util.Queue;
import java.util.concurrent.AbstractExecutorService;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
/**
*
* @author gustav trede
*/
@SuppressWarnings("deprecation")
public class GrizzlyExecutorService extends AbstractExecutorService
implements ExtendedThreadPool {
private final Object statelock = new Object();
private volatile ExtendedThreadPool pool;
protected volatile ThreadPoolConfig config;
/**
*
* @return {@link GrizzlyExecutorService}
*/
public static GrizzlyExecutorService createInstance() {
return createInstance(ThreadPoolConfig.DEFAULT);
}
/**
*
* @param cfg {@link ThreadPoolConfig}
* @return {@link GrizzlyExecutorService}
*/
public static GrizzlyExecutorService createInstance(ThreadPoolConfig cfg) {
return new GrizzlyExecutorService(cfg);
}
protected GrizzlyExecutorService(ThreadPoolConfig config) {
this(config, true);
}
protected GrizzlyExecutorService(ThreadPoolConfig config, boolean initialize) {
if (initialize) {
setImpl(config);
} else {
this.config = config;
}
}
protected final void setImpl(ThreadPoolConfig cfg) {
if (cfg == null) {
throw new IllegalArgumentException("config is null");
}
cfg = cfg.copy();
final Queue queue = cfg.getQueue();
if ((queue == null || queue instanceof BlockingQueue) &&
(cfg.getCorePoolSize() < 0 || cfg.getCorePoolSize() == cfg.getMaxPoolSize())) {
this.pool = cfg.getQueueLimit() < 0
? new FixedThreadPool(cfg.getPoolName(), cfg.getMaxPoolSize(),
(BlockingQueue) queue,
cfg.getThreadFactory(), cfg.getMonitoringProbe())
: new QueueLimitedThreadPool(
cfg.getPoolName(), cfg.getMaxPoolSize(), cfg.getQueueLimit(),
cfg.getThreadFactory(),
(BlockingQueue) queue, cfg.getMonitoringProbe());
} else {
this.pool = new SyncThreadPool(cfg.getPoolName(), cfg.getCorePoolSize(),
cfg.getMaxPoolSize(), cfg.getKeepAliveTime(TimeUnit.MILLISECONDS), TimeUnit.MILLISECONDS,
cfg.getThreadFactory(), queue, cfg.getQueueLimit(),cfg.getMonitoringProbe());
}
this.config = cfg.updateFrom(pool);
}
/**
* Sets the {@link ThreadPoolConfig}
* @param config
* @return returns {@link GrizzlyExecutorService}
*/
public GrizzlyExecutorService reconfigure(ThreadPoolConfig config) {
synchronized (statelock) {
//TODO: only create new pool if old one cant be runtime config
// for the needed state change(s).
final ExtendedThreadPool oldpool = this.pool;
if (config.getQueue() == oldpool.getQueue()) {
config.setQueue(null);
}
setImpl(config);
AbstractThreadPool.drain(oldpool.getQueue(), this.pool.getQueue());
oldpool.shutdown();
}
return this;
}
/**
*
* @return config - {@link ThreadPoolConfig}
*/
public ThreadPoolConfig getConfiguration() {
return config.copy();
}
public void shutdown() {
pool.shutdown();
}
public List shutdownNow() {
return pool.shutdownNow();
}
public boolean isShutdown() {
return pool.isShutdown();
}
public boolean isTerminated() {
return pool.isTerminated();
}
public void execute(Runnable r) {
pool.execute(r);
}
public boolean awaitTermination(long timeout, TimeUnit unit)
throws InterruptedException {
return pool.awaitTermination(timeout, unit);
}
/**
* @deprecated please use {@link GrizzlyExecutorService#getConfiguration()}
* to check thread pool configuration settings.
*/
@Deprecated
public Queue getQueue() {
return config.getQueue();
}
/**
* @deprecated please use {@link ThreadPoolMonitoringProbe}s to intercept
* thread pool events and build statistics.
*/
@Deprecated
public int getActiveCount() {
return pool.getActiveCount();
}
/**
* @deprecated please use {@link ThreadPoolMonitoringProbe}s to intercept
* thread pool events and build statistics.
*/
@Deprecated
public int getTaskCount() {
return pool.getTaskCount();
}
/**
* @deprecated please use {@link ThreadPoolMonitoringProbe}s to intercept
* thread pool events and build statistics.
*/
@Deprecated
public long getCompletedTaskCount() {
return pool.getCompletedTaskCount();
}
/**
* @deprecated please use {@link GrizzlyExecutorService#getConfiguration()}
* to check thread pool configuration settings.
*/
@Deprecated
public int getCorePoolSize() {
return config.getCorePoolSize();
}
/**
* @deprecated please use {@link GrizzlyExecutorService#reconfigure(com.sun.grizzly.util.ThreadPoolConfig)}
* to change thread pool configuration settings.
*/
@Deprecated
public void setCorePoolSize(int corePoolSize) {
reconfigure(getConfiguration().setCorePoolSize(corePoolSize));
}
/**
* @deprecated please use {@link ThreadPoolMonitoringProbe}s to intercept
* thread pool events and build statistics.
*/
@Deprecated
public int getLargestPoolSize() {
return pool.getLargestPoolSize();
}
/**
* @deprecated please use {@link ThreadPoolMonitoringProbe}s to intercept
* thread pool events and build statistics.
*/
@Deprecated
public int getPoolSize() {
return pool.getPoolSize();
}
/**
* @deprecated please use {@link ThreadPoolMonitoringProbe}s to intercept
* thread pool events and build statistics.
*/
@Deprecated
public int getQueueSize() {
return pool.getQueueSize();
}
/**
* @deprecated please use {@link GrizzlyExecutorService#getConfiguration()}
* to check thread pool configuration settings.
*/
@Deprecated
public long getKeepAliveTime(TimeUnit unit) {
return config.getKeepAliveTime(unit);
}
/**
* @deprecated please use {@link GrizzlyExecutorService#reconfigure(com.sun.grizzly.util.ThreadPoolConfig)}
* to change thread pool configuration settings.
*/
@Deprecated
public void setKeepAliveTime(long time, TimeUnit unit) {
reconfigure(getConfiguration().setKeepAliveTime(time, unit));
}
/**
* @deprecated please use {@link GrizzlyExecutorService#getConfiguration()}
* to check thread pool configuration settings.
*/
@Deprecated
public int getMaximumPoolSize() {
return config.getMaxPoolSize();
}
/**
* @deprecated please use {@link GrizzlyExecutorService#reconfigure(com.sun.grizzly.util.ThreadPoolConfig)}
* to change thread pool configuration settings.
*/
@Deprecated
public void setMaximumPoolSize(int maximumPoolSize) {
reconfigure(getConfiguration().setMaxPoolSize(maximumPoolSize));
}
/**
* @deprecated please use {@link GrizzlyExecutorService#getConfiguration()}
* to check thread pool configuration settings.
*/
@Deprecated
public int getMaxQueuedTasksCount() {
return config.getQueueLimit();
}
/**
* @deprecated please use {@link GrizzlyExecutorService#reconfigure(com.sun.grizzly.util.ThreadPoolConfig)}
* to change thread pool configuration settings.
*/
@Deprecated
public void setMaxQueuedTasksCount(int maxTasksCount) {
reconfigure(getConfiguration().setQueueLimit(maxTasksCount));
}
/**
* @deprecated please use {@link GrizzlyExecutorService#getConfiguration()}
* to check thread pool configuration settings.
*/
@Deprecated
public String getName() {
return config.getPoolName();
}
/**
* @deprecated please use {@link GrizzlyExecutorService#reconfigure(com.sun.grizzly.util.ThreadPoolConfig)}
* to change thread pool configuration settings.
*/
@Deprecated
public void setName(String name) {
reconfigure(getConfiguration().setPoolName(name));
}
/**
* @deprecated please use {@link GrizzlyExecutorService#getConfiguration()}
* to check thread pool configuration settings.
*/
@Deprecated
public int getPriority() {
return config.getPriority();
}
/**
* @deprecated please use {@link GrizzlyExecutorService#reconfigure(com.sun.grizzly.util.ThreadPoolConfig)}
* to change thread pool configuration settings.
*/
public void setPriority(int priority) {
reconfigure(getConfiguration().setPriority(priority));
}
/**
* @deprecated please use {@link GrizzlyExecutorService#getConfiguration()}
* to check thread pool configuration settings.
*/
@Deprecated
public ThreadFactory getThreadFactory() {
return config.getThreadFactory();
}
/**
* @deprecated please use {@link GrizzlyExecutorService#reconfigure(com.sun.grizzly.util.ThreadPoolConfig)}
* to change thread pool configuration settings.
*/
@Deprecated
public void setThreadFactory(ThreadFactory threadFactory) {
reconfigure(getConfiguration().setThreadFactory(threadFactory));
}
}
