Package org.jivesoftware.openfire.mbean

Class ThreadPoolExecutorDelegate

java.lang.Object

org.jivesoftware.openfire.mbean.ThreadPoolExecutorDelegate

All Implemented Interfaces:

ThreadPoolExecutorDelegateMBean

public class ThreadPoolExecutorDelegate
extends Object
implements ThreadPoolExecutorDelegateMBean

A delegate for a ThreadPoolExecutor instance, to expose a subset of its functionality as an MBean (as defined by ThreadPoolExecutorDelegateMBean.

Author:

Guus der Kinderen, guus@goodbytes.nl

Field Summary

Fields inherited from interface org.jivesoftware.openfire.mbean.ThreadPoolExecutorDelegateMBean

BASE_OBJECT_NAME

Constructor Summary

Constructors

Constructor	Description
ThreadPoolExecutorDelegate(ThreadPoolExecutor delegate)

Method Summary

Modifier and Type	Method	Description
int	getActiveCount()	Returns the approximate number of threads that are actively executing tasks.
long	getCompletedTaskCount()	Returns the approximate total number of tasks that have completed execution.
int	getCorePoolSize()	Returns the core number of threads.
int	getLargestPoolSize()	Returns the largest number of threads that have ever simultaneously been in the pool.
int	getMaximumPoolSize()	Returns the maximum allowed number of threads.
int	getPoolSize()	Returns the current number of threads in the pool.
int	getQueuedTaskCount()	Returns the number of tasks that are currently waiting to be executed by the delegate executor.
int	getQueueRemainingCapacity()	Returns the number of additional elements that task queue used by the delegate executor can ideally (in the absence of memory or resource constraints) accept without blocking, or Integer.MAX_VALUE if there is no intrinsic limit.
long	getTaskCount()	Returns the approximate total number of tasks that have ever been scheduled for execution.

Methods inherited from class java.lang.Object

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

Constructor Detail

ThreadPoolExecutorDelegate

public ThreadPoolExecutorDelegate(@Nonnull
                                  ThreadPoolExecutor delegate)

Method Detail

getCorePoolSize

public int getCorePoolSize()

Returns the core number of threads.

Specified by:

getCorePoolSize in interface ThreadPoolExecutorDelegateMBean

Returns:

the core number of threads

getPoolSize

public int getPoolSize()

Returns the current number of threads in the pool.

Specified by:

getPoolSize in interface ThreadPoolExecutorDelegateMBean

Returns:

the number of threads

getLargestPoolSize

public int getLargestPoolSize()

Returns the largest number of threads that have ever simultaneously been in the pool.

Specified by:

getLargestPoolSize in interface ThreadPoolExecutorDelegateMBean

Returns:

the number of threads

getMaximumPoolSize

public int getMaximumPoolSize()

Returns the maximum allowed number of threads.

Specified by:

getMaximumPoolSize in interface ThreadPoolExecutorDelegateMBean

Returns:

the maximum allowed number of threads

getActiveCount

public int getActiveCount()

Returns the approximate number of threads that are actively executing tasks.

Specified by:

getActiveCount in interface ThreadPoolExecutorDelegateMBean

Returns:

the number of threads

getQueuedTaskCount

public int getQueuedTaskCount()

Returns the number of tasks that are currently waiting to be executed by the delegate executor.

Specified by:

getQueuedTaskCount in interface ThreadPoolExecutorDelegateMBean

Returns:

the task queue size

getQueueRemainingCapacity

public int getQueueRemainingCapacity()

Returns the number of additional elements that task queue used by the delegate executor can ideally (in the absence of memory or resource constraints) accept without blocking, or Integer.MAX_VALUE if there is no intrinsic limit.

Specified by:

getQueueRemainingCapacity in interface ThreadPoolExecutorDelegateMBean

Returns:

the remaining capacity

getTaskCount

public long getTaskCount()

Returns the approximate total number of tasks that have ever been scheduled for execution. Because the states of tasks and threads may change dynamically during computation, the returned value is only an approximation.

Specified by:

getTaskCount in interface ThreadPoolExecutorDelegateMBean

Returns:

the number of tasks

getCompletedTaskCount

public long getCompletedTaskCount()

Returns the approximate total number of tasks that have completed execution. Because the states of tasks and threads may change dynamically during computation, the returned value is only an approximation, but one that does not ever decrease across successive calls.

Specified by:

getCompletedTaskCount in interface ThreadPoolExecutorDelegateMBean

Returns:

the number of tasks