org.apache.uima.collection.impl
Class CollectionProcessingEngine_impl

java.lang.Object
  org.apache.uima.collection.impl.CollectionProcessingEngine_impl

All Implemented Interfaces:

CollectionProcessingEngine

public class CollectionProcessingEngine_impl
extends java.lang.Object
implements CollectionProcessingEngine

Constructor Summary

CollectionProcessingEngine_impl()

Method Summary

void	addStatusCallbackListener(StatusCallbackListener aListener) Registers a listsner to receive status callbacks.
void	asynchStop()
CasProcessor[]	getCasProcessors() Gets the CasProcessorss in this CPE, in the order in which they will be executed.
BaseCollectionReader	getCollectionReader() Gets the Collection Reader for this CPE.
protected BaseCPMImpl	getCPM()
ProcessTrace	getPerformanceReport() Gets a performance report for the processing that is currently occurring or has just completed.
Progress[]	getProgress() Gets a progress report for the processing that is currently occurring or has just completed.
void	initialize(CpeDescription aCpeDescription, java.util.Map aAdditionalParams) Initializes this CPE from a cpeDescription Applications do not need to call this method.
boolean	isPaused() Determines whether this CPE's processing is currently paused.
boolean	isProcessing() Determines whether this CPE is currently processing.
void	kill() Kill CPM hard.
void	pause() Pauses processing.
void	process() Initiates processing of a collection.
void	removeStatusCallbackListener(StatusCallbackListener aListener) Unregisters a status callback listener.
void	resume() Resumes processing that has been paused.
void	stop() Stops processing.

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectionProcessingEngine_impl

public CollectionProcessingEngine_impl()

Method Detail

initialize

public void initialize(CpeDescription aCpeDescription,
                       java.util.Map aAdditionalParams)
                throws ResourceInitializationException

Description copied from interface: CollectionProcessingEngine

Initializes this CPE from a cpeDescription Applications do not need to call this method. It is called automatically by the framework and cannot be called a second time.

Specified by:

initialize in interface CollectionProcessingEngine

Parameters:

aCpeDescription - CPE description, generally parsed from an XML file

aAdditionalParams - a Map containing additional parameters. May be null if there are no parameters. Each class that implements this interface can decide what additional parameters it supports.

Throws:

ResourceInitializationException - if a failure occurs during initialization.

addStatusCallbackListener

public void addStatusCallbackListener(StatusCallbackListener aListener)

Description copied from interface: CollectionProcessingEngine

Registers a listsner to receive status callbacks.

Specified by:

addStatusCallbackListener in interface CollectionProcessingEngine

Parameters:

aListener - the listener to add

removeStatusCallbackListener

public void removeStatusCallbackListener(StatusCallbackListener aListener)

Description copied from interface: CollectionProcessingEngine

Unregisters a status callback listener.

Specified by:

removeStatusCallbackListener in interface CollectionProcessingEngine

Parameters:

aListener - the listener to remove

process

public void process()
             throws ResourceInitializationException

Description copied from interface: CollectionProcessingEngine

Initiates processing of a collection. This method starts the processing in another thread and returns immediately. Status of the processing can be obtained by registering a listener with the CollectionProcessingEngine.addStatusCallbackListener(StatusCallbackListener) method.

A CPE can only process one collection at a time. If this method is called while a previous processing request has not yet completed, a UIMA_IllegalStateException will result. To find out whether a CPE is free to begin another processing request, call the CollectionProcessingEngine.isProcessing() method.

Specified by:

process in interface CollectionProcessingEngine

Throws:

ResourceInitializationException - if an error occurs during initialization

isProcessing

public boolean isProcessing()

Description copied from interface: CollectionProcessingEngine

Determines whether this CPE is currently processing. This means that a processing request has been submitted and has not yet completed or been CollectionProcessingEngine.stop()ped. If processing is paused, this method will still return true.

Specified by:

isProcessing in interface CollectionProcessingEngine

Returns:

true if and only if this CPE is currently processing.

pause

public void pause()

Description copied from interface: CollectionProcessingEngine

Pauses processing. Processing can later be resumed by calling the CollectionProcessingEngine.resume() method.

Specified by:

pause in interface CollectionProcessingEngine

isPaused

public boolean isPaused()

Description copied from interface: CollectionProcessingEngine

Determines whether this CPE's processing is currently paused.

Specified by:

isPaused in interface CollectionProcessingEngine

Returns:

true if and only if this CPE's processing is currently paused.

resume

public void resume()

Description copied from interface: CollectionProcessingEngine

Resumes processing that has been paused.

Specified by:

resume in interface CollectionProcessingEngine

stop

public void stop()

Description copied from interface: CollectionProcessingEngine

Stops processing.

Specified by:

stop in interface CollectionProcessingEngine

kill

public void kill()

Description copied from interface: CollectionProcessingEngine

Kill CPM hard.

Specified by:

kill in interface CollectionProcessingEngine

asynchStop

public void asynchStop()

getPerformanceReport

public ProcessTrace getPerformanceReport()

Description copied from interface: CollectionProcessingEngine

Gets a performance report for the processing that is currently occurring or has just completed.

Specified by:

getPerformanceReport in interface CollectionProcessingEngine

Returns:

an object containing performance statistics

getProgress

public Progress[] getProgress()

Description copied from interface: CollectionProcessingEngine

Gets a progress report for the processing that is currently occurring or has just completed.

Specified by:

getProgress in interface CollectionProcessingEngine

Returns:

an array of Progress objects, each of which represents the progress in a different set of units (for example number of entities or bytes)

getCPM

protected BaseCPMImpl getCPM()

getCasProcessors

public CasProcessor[] getCasProcessors()

Description copied from interface: CollectionProcessingEngine

Gets the CasProcessorss in this CPE, in the order in which they will be executed.

Specified by:

getCasProcessors in interface CollectionProcessingEngine

Returns:

an array of CasProcessors

getCollectionReader

public BaseCollectionReader getCollectionReader()

Description copied from interface: CollectionProcessingEngine

Gets the Collection Reader for this CPE.

Specified by:

getCollectionReader in interface CollectionProcessingEngine

Returns:

the collection reader