org.apache.cocoon.components.thread
Class DefaultThreadPool

java.lang.Object
  EDU.oswego.cs.dl.util.concurrent.ThreadFactoryUser
      EDU.oswego.cs.dl.util.concurrent.PooledExecutor
          org.apache.cocoon.components.thread.DefaultThreadPool

All Implemented Interfaces:

EDU.oswego.cs.dl.util.concurrent.Executor, LogEnabled, ThreadPool

public class DefaultThreadPool
extends EDU.oswego.cs.dl.util.concurrent.PooledExecutor
implements ThreadPool, LogEnabled

The DefaultThreadPool class implements the ThreadPool interface. Instances of this class are made by the RunnableManager passing a configuration into the configure method.

Version:

CVS $Id: DefaultThreadPool.html 1304258 2012-03-23 10:09:27Z ilgrosso $

Author:

Giacomo Pati

Nested Class Summary

Nested classes/interfaces inherited from class EDU.oswego.cs.dl.util.concurrent.PooledExecutor

EDU.oswego.cs.dl.util.concurrent.PooledExecutor.AbortWhenBlocked, EDU.oswego.cs.dl.util.concurrent.PooledExecutor.BlockedExecutionHandler, EDU.oswego.cs.dl.util.concurrent.PooledExecutor.DiscardOldestWhenBlocked, EDU.oswego.cs.dl.util.concurrent.PooledExecutor.DiscardWhenBlocked, EDU.oswego.cs.dl.util.concurrent.PooledExecutor.RunWhenBlocked, EDU.oswego.cs.dl.util.concurrent.PooledExecutor.WaitWhenBlocked, EDU.oswego.cs.dl.util.concurrent.PooledExecutor.Worker

Nested classes/interfaces inherited from class EDU.oswego.cs.dl.util.concurrent.ThreadFactoryUser

EDU.oswego.cs.dl.util.concurrent.ThreadFactoryUser.DefaultThreadFactory

Field Summary

static String

POLICY_DEFAULT Default ThreadPool block policy

Fields inherited from class EDU.oswego.cs.dl.util.concurrent.PooledExecutor

blockedExecutionHandler_, DEFAULT_KEEPALIVETIME, DEFAULT_MAXIMUMPOOLSIZE, DEFAULT_MINIMUMPOOLSIZE, handOff_, keepAliveTime_, maximumPoolSize_, minimumPoolSize_, poolSize_, shutdown_, threads_

Fields inherited from class EDU.oswego.cs.dl.util.concurrent.ThreadFactoryUser

threadFactory_

Fields inherited from interface org.apache.cocoon.components.thread.ThreadPool

POLICY_ABORT, POLICY_DISCARD, POLICY_DISCARD_OLDEST, POLICY_RUN, POLICY_WAIT, ROLE

Method Summary

void	enableLogging(Logger logger) Set the logger
void	execute(Runnable command) Execute a command
String	getBlockPolicy() DOCUMENT ME!
int	getMaximumQueueSize() DOCUMENT ME!
int	getMaxQueueSize() DOCUMENT ME!
String	getName() The Name of this thread pool
int	getPriority() Get hte priority used to create Threads
int	getQueueSize() DOCUMENT ME!
boolean	isQueued() Whether this DefaultThreadPool has a queue
void	shutdown() Terminates all threads possibly awaiting processing all elements currently in queue.

Methods inherited from class EDU.oswego.cs.dl.util.concurrent.PooledExecutor

abortWhenBlocked, addThread, awaitTerminationAfterShutdown, awaitTerminationAfterShutdown, createThreads, discardOldestWhenBlocked, discardWhenBlocked, drain, getBlockedExecutionHandler, getKeepAliveTime, getMaximumPoolSize, getMinimumPoolSize, getPoolSize, getTask, interruptAll, isTerminatedAfterShutdown, runWhenBlocked, setBlockedExecutionHandler, setKeepAliveTime, setMaximumPoolSize, setMinimumPoolSize, shutdownAfterProcessingCurrentlyQueuedTasks, shutdownAfterProcessingCurrentlyQueuedTasks, shutdownNow, shutdownNow, waitWhenBlocked, workerDone

Methods inherited from class EDU.oswego.cs.dl.util.concurrent.ThreadFactoryUser

getThreadFactory, setThreadFactory

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.cocoon.components.thread.ThreadPool

getKeepAliveTime, getMaximumPoolSize, getMinimumPoolSize, getPoolSize, isTerminatedAfterShutdown

Field Detail

POLICY_DEFAULT

public static final String POLICY_DEFAULT

Default ThreadPool block policy

See Also:

Constant Field Values

Method Detail

getBlockPolicy

public String getBlockPolicy()

DOCUMENT ME!

Specified by:

getBlockPolicy in interface ThreadPool

Returns:

Returns the blockPolicy.

getMaxQueueSize

public int getMaxQueueSize()

DOCUMENT ME!

Returns:

maximum size of the queue (0 if isQueued() == false)

See Also:

ThreadPool.getQueueSize()

getMaximumQueueSize

public int getMaximumQueueSize()

DOCUMENT ME!

Specified by:

getMaximumQueueSize in interface ThreadPool

Returns:

size of queue (0 if isQueued() == false)

See Also:

ThreadPool.getQueueSize()

getName

public String getName()

Description copied from interface: ThreadPool

The Name of this thread pool

Specified by:

getName in interface ThreadPool

Returns:

The name

See Also:

ThreadPool.getName()

getPriority

public int getPriority()

Get hte priority used to create Threads

Specified by:

getPriority in interface ThreadPool

Returns:

Thread.MIN_PRIORITY, Thread.NORM_PRIORITY, or Thread.MAX_PRIORITY

getQueueSize

public int getQueueSize()

DOCUMENT ME!

Specified by:

getQueueSize in interface ThreadPool

Returns:

current size of the queue (0 if isQueued() == false)

See Also:

ThreadPool.getQueueSize()

isQueued

public boolean isQueued()

Whether this DefaultThreadPool has a queue

Specified by:

isQueued in interface ThreadPool

Returns:

Returns the m_isQueued.

See Also:

ThreadPool.isQueued()

enableLogging

public void enableLogging(Logger logger)

Set the logger

Specified by:

enableLogging in interface LogEnabled

Parameters:

logger -

See Also:

LogEnabled.enableLogging(org.apache.avalon.framework.logger.Logger)

execute

public void execute(Runnable command)
             throws InterruptedException

Execute a command

Specified by:

execute in interface EDU.oswego.cs.dl.util.concurrent.Executor

Specified by:

execute in interface ThreadPool

Overrides:

execute in class EDU.oswego.cs.dl.util.concurrent.PooledExecutor

Parameters:

command - The Runnable to execute

Throws:

InterruptedException - In case of interruption

shutdown

public void shutdown()

Description copied from interface: ThreadPool

Terminates all threads possibly awaiting processing all elements currently in queue.

Specified by:

shutdown in interface ThreadPool

See Also:

ThreadPool.shutdown()