Package callStack.utils

Class AbstractThreadPool

java.lang.Object

callStack.utils.AbstractThreadPool

All Implemented Interfaces:

ThreadPoolStats

Direct Known Subclasses:

CachedThreadPool

public abstract class AbstractThreadPool
extends Object
implements ThreadPoolStats

Field Summary

Fields

Modifier and Type	Field	Description
protected ExecutorService	m_pool

Constructor Summary

Constructors

Constructor	Description
AbstractThreadPool()

Method Summary

Modifier and Type	Method	Description
int	getActivePoolSize()	(U) Returns the number of actively running threads in this thread pool.
int	getCurrentPoolSize()	(U) Returns the current size of this thread pool.
<T> String	getExceptions(List<Future<T>> futures)	Retrieves all Exceptions from the List of Future objects and appends them to a String.
int	getMaximumPoolSize()	(U) Returns the maximum size of this thread pool.
void	shutdown()
<T> List<Future<T>>	submit(Callable<T> submitMe, int numOfSubmissions)
<T> List<Future<T>>	submit(List<Callable<T>> listToSubmit)
List<String>	submitAndGetExceptions(Callable<?> submitMe, int numOfSubmissions)
<T> List<String>	submitAndGetExceptions(List<Callable<T>> submitList)
<T> List<T>	submitAndGetResults(Callable<T> callable, int numOfSubmissions)
<T> List<T>	submitAndGetResults(List<Callable<T>> listToSubmit)

Methods inherited from class java.lang.Object

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

Field Detail

m_pool

protected ExecutorService m_pool

Constructor Detail

AbstractThreadPool

public AbstractThreadPool()

Method Detail

submitAndGetExceptions

public List<String> submitAndGetExceptions(Callable<?> submitMe,
                                           int numOfSubmissions)

submitAndGetExceptions

public <T> List<String> submitAndGetExceptions(List<Callable<T>> submitList)

submit

public <T> List<Future<T>> submit(Callable<T> submitMe,
                                  int numOfSubmissions)

submit

public <T> List<Future<T>> submit(List<Callable<T>> listToSubmit)

submitAndGetResults

public <T> List<T> submitAndGetResults(List<Callable<T>> listToSubmit)

submitAndGetResults

public <T> List<T> submitAndGetResults(Callable<T> callable,
                                       int numOfSubmissions)

shutdown

public void shutdown()

getExceptions

public <T> String getExceptions(List<Future<T>> futures)

Retrieves all Exceptions from the List of Future objects and appends them to a String. Note: will halt the calling thread till all the futures/threads are completed.

Parameters:

futures - list of futures to invoke

Returns:

a String containing all Exceptions thrown from the Future tasks

getMaximumPoolSize

public int getMaximumPoolSize()

(U) Returns the maximum size of this thread pool. Some implementations of the underlying Executor may not expose the thread pool sizes. If this occurs, zero will be returned.

Specified by:

getMaximumPoolSize in interface ThreadPoolStats

Returns:

The maximum size of this thread pool.

getCurrentPoolSize

public int getCurrentPoolSize()

(U) Returns the current size of this thread pool. Some implementations of the underlying Executor may not expose the thread pool sizes. If this occurs, zero will be returned.

Specified by:

getCurrentPoolSize in interface ThreadPoolStats

Returns:

The current size of this thread pool.

getActivePoolSize

public int getActivePoolSize()

(U) Returns the number of actively running threads in this thread pool. Some implementations of the underlying Executor may not expose the thread pool sizes. If this occurs, zero will be returned.

Specified by:

getActivePoolSize in interface ThreadPoolStats

Returns:

The active size of this thread pool.