package org.andromda.metafacades.uml14;
import java.util.Collection;
import org.andromda.metafacades.uml.FrontEndController;
import org.andromda.metafacades.uml.FrontEndUseCase;
import org.andromda.metafacades.uml.ModelElementFacade;
import org.andromda.metafacades.uml.PseudostateFacade;
import org.andromda.metafacades.uml.UMLProfile;
import org.andromda.metafacades.uml.UseCaseFacade;
/**
* MetafacadeLogic implementation for org.andromda.metafacades.uml.FrontEndActivityGraph.
*
* @see org.andromda.metafacades.uml.FrontEndActivityGraph
*/
public class FrontEndActivityGraphLogicImpl
extends FrontEndActivityGraphLogic
{
public FrontEndActivityGraphLogicImpl (Object metaObject, String context)
{
super (metaObject, context);
}
/**
* @see org.andromda.metafacades.uml.FrontEndActivityGraph#isContainedInFrontEndUseCase()
*/
protected boolean handleIsContainedInFrontEndUseCase()
{
return this.getUseCase() instanceof FrontEndUseCase;
}
/**
* Retrieves the usecase that owns this activity.
*
* @see org.andromda.metafacades.uml14.ActivityGraphFacadeLogic#handleGetUseCase()
*/
protected Object handleGetUseCase()
{
Object useCase = super.handleGetUseCase();
if (useCase == null)
{
useCase = getModel().findUseCaseWithTaggedValueOrHyperlink(UMLProfile.TAGGEDVALUE_PRESENTATION_USECASE_ACTIVITY,
getName());
}
return useCase;
}
/**
* @see org.andromda.metafacades.uml.FrontEndActivityGraph#getInitialAction()
*/
protected Object handleGetInitialAction()
{
Object firstAction = null;
final Collection initialStates = getInitialStates();
if (!initialStates.isEmpty())
{
final PseudostateFacade initialState = (PseudostateFacade)initialStates.iterator().next();
final Collection outgoing = initialState.getOutgoing();
firstAction = outgoing.isEmpty() ? null : outgoing.iterator().next();
}
return firstAction;
}
/**
* @see org.andromda.metafacades.uml.FrontEndActivityGraph#getController()
*/
protected java.lang.Object handleGetController()
{
Object controller = null;
final ModelElementFacade contextElement = this.getContextElement();
if (contextElement instanceof FrontEndController)
{
controller = contextElement;
}
// - for those tools not supporting setting the context of an activity graph (such as Poseidon)
// an alternative is implemented: a tagged value on the controller, specifying the name of the use-case
//
// It is also allowed to set a hyperlink from the controller to the usecase
if (controller == null)
{
final UseCaseFacade useCase = this.getUseCase();
if (useCase != null)
{
final String useCaseName = useCase.getName();
controller = this.getModel().findClassWithTaggedValueOrHyperlink(
UMLProfile.TAGGEDVALUE_PRESENTATION_CONTROLLER_USECASE, useCaseName);
}
}
return controller;
}
}