org.eclipse.smila.processing.bpel
Class PipeletManager

java.lang.Object
  org.eclipse.smila.processing.bpel.ExtensionManager
      org.eclipse.smila.processing.bpel.PipeletManager

All Implemented Interfaces:

PipeletTrackerListener

public final class PipeletManager
extends ExtensionManager
implements PipeletTrackerListener

Pipelet Manager and Invoker.

Author:

jschumacher

Method Summary

void	checkAvailability(ExtensionAdapter adapter, ODEWorkflowProcessor processor) check if element invoked by the adapter is already available.
ProcessorMessage	doInvoke(ExtensionAdapter adapter, ODEWorkflowProcessor processor, Blackboard blackboard, ProcessorMessage request) actually invoke the adapter.
PipeletInstance	doRegisterActivity(OProcess pipelineProcess, OExtensionActivity activity, org.w3c.dom.Element content, java.lang.String key) register extension actvity.
java.lang.String	getExtensionName()
static PipeletManager	getInstance() singleton instance access method.
void	pipeletsAdded(java.util.Map<java.lang.String,java.lang.Class<? extends IPipelet>> pipeletClasses) learn about new pipelet classes and instantiate pipelets waiting for their classes.
void	pipeletsRemoved(java.util.Map<java.lang.String,java.lang.Class<? extends IPipelet>> pipeletClasses) forget pipelet classes and remove instances.
void	registerAsListener(BundleContext context) register this object as a listener to pipelet change events by SimplePipeletTracker.

Methods inherited from class org.eclipse.smila.processing.bpel.ExtensionManager

copyAnnotations, createErrorCompilationMessage, getActivityKey, getAdapters, getAttributeOfElement, getExtensionAdapter, getProcessor, invokeActivity, parseAnnotations, registerActivity, registerPipeline

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static PipeletManager getInstance()

singleton instance access method.

Returns:

singleton instance of SimpletonPipeletManager

registerAsListener

public void registerAsListener(BundleContext context)

register this object as a listener to pipelet change events by SimplePipeletTracker.

Parameters:

context - bundle context.

getExtensionName

public java.lang.String getExtensionName()

Specified by:

getExtensionName in class ExtensionManager

Returns:

local name of tag of watched extension activities

See Also:

ExtensionManager.getExtensionName()

doRegisterActivity

public PipeletInstance doRegisterActivity(OProcess pipelineProcess,
                                          OExtensionActivity activity,
                                          org.w3c.dom.Element content,
                                          java.lang.String key)

register extension actvity. Should throw a org.apache.ode.bpel.compiler.api.CompilationException if an error occurs.

Specified by:

doRegisterActivity in class ExtensionManager

Parameters:

pipelineProcess - process that contains the activity.

activity - the activity to register

content - XML content of actvity

key - key of actvity

Returns:

adapter for activity.

See Also:

org.eclipse.smila.processing.bpel.ExtensionManager#registerActivity(org.apache.ode.bpel.o.OProcess, org.apache.ode.bpel.o.OExtensionActivity, org.w3c.dom.Element, java.lang.String)

checkAvailability

public void checkAvailability(ExtensionAdapter adapter,
                              ODEWorkflowProcessor processor)
                       throws ProcessingException

check if element invoked by the adapter is already available.

Specified by:

checkAvailability in class ExtensionManager

Parameters:

adapter - adapter to check

processor - associated processor

Throws:

ProcessingException - if elements represented by adapter cannot be invoked.

See Also:

#checkAvailability(org.eclipse.smila.processing.bpel.ExtensionAdapter, org.eclipse.smila.processing.bpel.ODEWorkflowProcessor)

doInvoke

public ProcessorMessage doInvoke(ExtensionAdapter adapter,
                                 ODEWorkflowProcessor processor,
                                 Blackboard blackboard,
                                 ProcessorMessage request)
                          throws ProcessingException

actually invoke the adapter.

Specified by:

doInvoke in class ExtensionManager

Parameters:

adapter - adapter to invoke

processor - associated processor

blackboard - blackboard instance to work on.

request - record Ids of request.

Returns:

Ids of result records

Throws:

ProcessingException - error while processing.

See Also:

#doInvoke(org.eclipse.smila.processing.bpel.ExtensionAdapter, org.eclipse.smila.processing.bpel.ODEWorkflowProcessor, org.eclipse.smila.datamodel.id.Id[])

pipeletsAdded

public void pipeletsAdded(java.util.Map<java.lang.String,java.lang.Class<? extends IPipelet>> pipeletClasses)

learn about new pipelet classes and instantiate pipelets waiting for their classes. event: the given pipelets are now available for instantiation.

Specified by:

pipeletsAdded in interface PipeletTrackerListener

Parameters:

pipeletClasses - map of pipelet class names to new pipelet classes.

See Also:

PipeletTrackerListener.pipeletsAdded(java.util.Map)

pipeletsRemoved

public void pipeletsRemoved(java.util.Map<java.lang.String,java.lang.Class<? extends IPipelet>> pipeletClasses)

forget pipelet classes and remove instances. event: the given pipelets are not available anymore for instantiation. Current instances should be removed immediately.

Specified by:

pipeletsRemoved in interface PipeletTrackerListener

Parameters:

pipeletClasses - map of pipelet class names to removed pipelet classes.

See Also:

PipeletTrackerListener.pipeletsRemoved(java.util.Map)