org.apache.uima.aae.spi.transport.vm

Class VmTransport

java.lang.Object

org.apache.uima.aae.spi.transport.vm.VmTransport

All Implemented Interfaces:

UimaTransport

public class VmTransport
extends Object
implements UimaTransport

This class provides implementation for internal messaging between collocated Uima AS services. It uses UimaMessageDispatcher to send messages to UimaMessageListener.

Constructor Summary

Constructors

Constructor and Description
VmTransport(UimaAsContext aContext, AnalysisEngineController aController)

Method Summary

Modifier and Type	Method and Description
void	addSpiListener(SpiListener listener) This method registers a given SpiListener instance with the SPI.
void	destroy()
protected ThreadPoolExecutor	getExecutorInstance()
UimaMessageDispatcher	getMessageDispatcher()
UimaMessageDispatcher	getUimaMessageDispatcher() Returns SPI Dispatcher
UimaMessageDispatcher	getUimaMessageDispatcher(String aKey)
UimaMessageListener	getUimaMessageListener()
UimaVmMessage	produceMessage()
UimaVmMessage	produceMessage(int aCommand, int aMessageType, String aMessageFrom)
UimaVmMessageDispatcher	produceUimaMessageDispatcher(UimaTransport aTransport)
UimaMessageListener	produceUimaMessageListener()
void	registerWithJMX(AnalysisEngineController aController, String queueKind)
void	startIt() This method is called to start SPI.
void	stopIt() This method is called to stop SPI.

Methods inherited from class java.lang.Object

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

Constructor Detail

VmTransport

public VmTransport(UimaAsContext aContext,
                   AnalysisEngineController aController)

Method Detail

addSpiListener

public void addSpiListener(SpiListener listener)

Description copied from interface: UimaTransport

This method registers a given SpiListener instance with the SPI. The SPI will call all registered listeners when the initialization is completed, when the start is completed, and when the stop is completed.

Specified by:

addSpiListener in interface UimaTransport

Parameters:

listener - - SPI listener to receive events

produceMessage

public UimaVmMessage produceMessage()

Specified by:

produceMessage in interface UimaTransport

produceMessage

public UimaVmMessage produceMessage(int aCommand,
                                    int aMessageType,
                                    String aMessageFrom)

Specified by:

produceMessage in interface UimaTransport

startIt

public void startIt()
             throws UimaSpiException

Description copied from interface: UimaTransport

This method is called to start SPI.

Specified by:

startIt in interface UimaTransport

Throws:

UimaSpiException - - any problems while starting the SPI

stopIt

public void stopIt()
            throws UimaSpiException

Description copied from interface: UimaTransport

This method is called to stop SPI.

Specified by:

stopIt in interface UimaTransport

Throws:

UimaSpiException - - any problems while stopping the SPI

destroy

public void destroy()

getExecutorInstance

protected ThreadPoolExecutor getExecutorInstance()

registerWithJMX

public void registerWithJMX(AnalysisEngineController aController,
                            String queueKind)

Specified by:

registerWithJMX in interface UimaTransport

getMessageDispatcher

public UimaMessageDispatcher getMessageDispatcher()
                                           throws UimaSpiException

Throws:

UimaSpiException

getUimaMessageListener

public UimaMessageListener getUimaMessageListener()

Specified by:

getUimaMessageListener in interface UimaTransport

produceUimaMessageListener

public UimaMessageListener produceUimaMessageListener()
                                               throws UimaSpiException

Specified by:

produceUimaMessageListener in interface UimaTransport

Throws:

UimaSpiException

getUimaMessageDispatcher

public UimaMessageDispatcher getUimaMessageDispatcher()
                                               throws UimaSpiException

Description copied from interface: UimaTransport

Returns SPI Dispatcher

Specified by:

getUimaMessageDispatcher in interface UimaTransport

Returns:

- instance of SPI Dispatcher

Throws:

UimaSpiException - - any problems while fetching Dispatcher

getUimaMessageDispatcher

public UimaMessageDispatcher getUimaMessageDispatcher(String aKey)
                                               throws UimaSpiException

Specified by:

getUimaMessageDispatcher in interface UimaTransport

Throws:

UimaSpiException

produceUimaMessageDispatcher

public UimaVmMessageDispatcher produceUimaMessageDispatcher(UimaTransport aTransport)
                                                     throws UimaSpiException

Specified by:

produceUimaMessageDispatcher in interface UimaTransport

Throws:

UimaSpiException