org.apache.uima.aae

Class UimaAsThreadFactory

java.lang.Object

org.apache.uima.aae.UimaAsThreadFactory

All Implemented Interfaces:

java.util.concurrent.ThreadFactory

public class UimaAsThreadFactory
extends java.lang.Object
implements java.util.concurrent.ThreadFactory

Custom ThreadFactory for use in the TaskExecutor. The TaskExecutor is plugged in by Spring from spring xml file generated by dd2spring. The TaskExecutor is only defined for PrimitiveControllers and its main purpose is to provide thread pooling and management. Each new thread produced by this ThreadFactory is used to initialize a dedicated AE instance in the PrimitiveController.

Field Summary

Fields

Modifier and Type	Field and Description
static java.util.concurrent.atomic.AtomicInteger	poolIdGenerator

Constructor Summary

Constructors

Constructor and Description
UimaAsThreadFactory(java.lang.ThreadGroup tGroup)
UimaAsThreadFactory(java.lang.ThreadGroup tGroup, PrimitiveAnalysisEngineController aController)

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Thread	newThread(java.lang.Runnable r) Creates a new thread, initializes instance of AE via a call on a given PrimitiveController.
void	setDaemon(boolean daemon)
void	setThreadGroup(java.lang.ThreadGroup tGroup)
void	setThreadNamePrefix(java.lang.String prefix)
void	stop()

Methods inherited from class java.lang.Object

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

Field Detail

poolIdGenerator

public static java.util.concurrent.atomic.AtomicInteger poolIdGenerator

Constructor Detail

UimaAsThreadFactory

public UimaAsThreadFactory(java.lang.ThreadGroup tGroup)

UimaAsThreadFactory

public UimaAsThreadFactory(java.lang.ThreadGroup tGroup,
                   PrimitiveAnalysisEngineController aController)

Parameters:

tGroup -

aController -

Method Detail

setThreadNamePrefix

public void setThreadNamePrefix(java.lang.String prefix)

setThreadGroup

public void setThreadGroup(java.lang.ThreadGroup tGroup)

setDaemon

public void setDaemon(boolean daemon)

stop

public void stop()

newThread

public java.lang.Thread newThread(java.lang.Runnable r)

Creates a new thread, initializes instance of AE via a call on a given PrimitiveController. Once the thread finishes initializing AE instance in the controller, it calls run() on a given Runnable. This Runnable is a Worker instance managed by the TaskExecutor. When the thread calls run() on the Runnable it blocks until the Worker releases it.

Specified by:

newThread in interface java.util.concurrent.ThreadFactory