ThreadPool (Jadex Active Component Platform 3.0.0-RC51 API)

java.lang.Object
- jadex.commons.concurrent.ThreadPool

All Implemented Interfaces:

IThreadPool
```
public class ThreadPool
extends java.lang.Object
implements IThreadPool
```
A thread pool manages pool and saves resources and time by precreating and reusing pool.

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

class ThreadPool.ServiceThread
A service thread executes tasks.

Nested Classes
Modifier and Type	Class and Description
`class`	`ThreadPool.ServiceThread` A service thread executes tasks.

Field Summary

Fields
Modifier and Type	Field and Description
`protected static java.util.Map<java.lang.Class<?>,java.lang.Integer>`	`calls` Service calls per runnable class.
`protected boolean`	`daemon` The daemon flag.
`protected java.util.Map<java.lang.Runnable,java.lang.Long>`	`enqueuetimes` The current throughput of the pool (average of waiting times).
`protected boolean`	`finished` Boolean if already finished.
`protected java.lang.ThreadGroup`	`group` The thread group.
`protected java.util.List<IChangeListener<java.lang.Void>>`	`listeners` The finished listeners.
`protected int`	`maxparked` The maximum number of parked threads.
`protected long`	`maxwait` The time a task should maximum wait.
`protected java.util.List<ThreadPool.ServiceThread>`	`parked` The list of threads not used.
`protected java.util.List<ThreadPool.ServiceThread>`	`pool` The pool of service threads.
`protected static int`	`poolcnt` The static thread pool number.
`static long`	`PRINT_DELAY` Print every 10 seconds.
`static boolean`	`PROFILING` Enable call profiling.
`protected boolean`	`running` The running flag.
`protected IPoolStrategy`	`strategy` The strategy.
`protected IBlockingQueue<java.lang.Runnable>`	`tasks` The tasks to execute.
`protected static int`	`threadcnt` The thread number.
`protected java.util.Timer`	`timer` Rescue timer that checks if progress is made and tasks are scheduled.

Constructor Summary

Constructors
Constructor and Description
`ThreadPool()` Create a new thread pool.
`ThreadPool(boolean daemon, IPoolStrategy strategy)` Create a new thread pool.
`ThreadPool(boolean daemon, IPoolStrategy strategy, long maxwait)` Create a new thread pool.
`ThreadPool(IPoolStrategy strategy)` Create a new thread pool.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addFinishListener(IChangeListener<java.lang.Void> listener)` Add a finish listener;
`protected void`	`addThread()`
`protected void`	`addThreads(int num)` Create some pool.
`void`	`dispose()` Shutdown the task pool
`void`	`execute(java.lang.Runnable task)` Execute a task in its own thread.
`protected java.lang.Runnable`	`getTask(java.lang.Thread thread)` The task for a given thread.
`boolean`	`isRunning()` Test if the thread pool is running.
`static void`	`main(java.lang.String[] args)` Main for testing.
`protected void`	`notifyFinishListeners()` Notify the finish listeners.
`java.lang.String`	`toString()` Get the string representation.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - PROFILING
```
public static final boolean PROFILING
```
    Enable call profiling.
    
    See Also:
    
    Constant Field Values
  - PRINT_DELAY
```
public static final long PRINT_DELAY
```
    Print every 10 seconds.
    
    See Also:
    
    Constant Field Values
  - calls
```
protected static java.util.Map<java.lang.Class<?>,java.lang.Integer> calls
```
    Service calls per runnable class.
  - threadcnt
```
protected static int threadcnt
```
    The thread number.
  - poolcnt
```
protected static int poolcnt
```
    The static thread pool number.
  - group
```
protected java.lang.ThreadGroup group
```
    The thread group.
  - strategy
```
protected IPoolStrategy strategy
```
    The strategy.
  - pool
```
protected java.util.List<ThreadPool.ServiceThread> pool
```
    The pool of service threads.
  - parked
```
protected java.util.List<ThreadPool.ServiceThread> parked
```
    The list of threads not used.
  - tasks
```
protected IBlockingQueue<java.lang.Runnable> tasks
```
    The tasks to execute.
  - running
```
protected volatile boolean running
```
    The running flag.
  - daemon
```
protected boolean daemon
```
    The daemon flag.
  - enqueuetimes
```
protected java.util.Map<java.lang.Runnable,java.lang.Long> enqueuetimes
```
    The current throughput of the pool (average of waiting times).
  - maxparked
```
protected int maxparked
```
    The maximum number of parked threads.
  - timer
```
protected java.util.Timer timer
```
    Rescue timer that checks if progress is made and tasks are scheduled.
  - maxwait
```
protected long maxwait
```
    The time a task should maximum wait.
  - listeners
```
protected java.util.List<IChangeListener<java.lang.Void>> listeners
```
    The finished listeners.
  - finished
```
protected boolean finished
```
    Boolean if already finished.
- Constructor Detail
  - ThreadPool
```
public ThreadPool()
```
    Create a new thread pool.
  - ThreadPool
```
public ThreadPool(IPoolStrategy strategy)
```
    Create a new thread pool.
  - ThreadPool
```
public ThreadPool(boolean daemon,
                  IPoolStrategy strategy)
```
    Create a new thread pool.
  - ThreadPool
```
public ThreadPool(boolean daemon,
                  IPoolStrategy strategy,
                  long maxwait)
```
    Create a new thread pool.
- Method Detail
  - isRunning
```
public boolean isRunning()
```
    Test if the thread pool is running.
    
    Specified by:
    
    isRunning in interface IThreadPool
  - execute
```
public void execute(java.lang.Runnable task)
```
    Execute a task in its own thread.
    
    Specified by:
    
    execute in interface IThreadPool
    
    Parameters:
    
    task - The task to execute.
  - dispose
```
public void dispose()
```
    Shutdown the task pool
    
    Specified by:
    
    dispose in interface IThreadPool
  - toString
```
public java.lang.String toString()
```
    Get the string representation.
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    The string representation.
  - addThreads
```
protected void addThreads(int num)
```
    Create some pool.
    
    Parameters:
    
    num - The number of pool.
  - addThread
```
protected void addThread()
```
  - getTask
```
protected java.lang.Runnable getTask(java.lang.Thread thread)
```
    The task for a given thread.
  - addFinishListener
```
public void addFinishListener(IChangeListener<java.lang.Void> listener)
```
    Add a finish listener;
    
    Specified by:
    
    addFinishListener in interface IThreadPool
  - notifyFinishListeners
```
protected void notifyFinishListeners()
```
    Notify the finish listeners.
  - main
```
public static void main(java.lang.String[] args)
```
    Main for testing.
    
    Parameters:
    
    args - The arguments.

Class ThreadPool

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

PROFILING

PRINT_DELAY

calls

threadcnt

poolcnt

group

strategy

pool

parked

tasks

running

daemon

enqueuetimes

maxparked

timer

maxwait

listeners

finished

Constructor Detail

ThreadPool

ThreadPool

ThreadPool

ThreadPool

Method Detail

isRunning

execute

dispose

toString

addThreads

addThread

getTask

addFinishListener

notifyFinishListeners

main