// $Id: CrNoGuard.java 15512 2008-08-05 17:33:53Z maurelio1234 $
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package org.argouml.uml.cognitive.critics;
import java.util.HashSet;
import java.util.Set;
import org.argouml.cognitive.Critic;
import org.argouml.cognitive.Designer;
import org.argouml.model.Model;
import org.argouml.uml.cognitive.UMLDecision;
/**
* Critic that fires when there is no guard for a transition
* that originates in a Choice pseudostate.
*
* @author jrobbins
*/
public class CrNoGuard extends CrUML {
/**
* The constructor.
*/
public CrNoGuard() {
setupHeadAndDesc();
addSupportedDecision(UMLDecision.STATE_MACHINES);
setKnowledgeTypes(Critic.KT_COMPLETENESS);
addTrigger("guard");
}
/*
* @see org.argouml.uml.cognitive.critics.CrUML#predicate2(
* java.lang.Object, org.argouml.cognitive.Designer)
*/
public boolean predicate2(Object dm, Designer dsgr) {
if (!(Model.getFacade().isATransition(dm))) {
return NO_PROBLEM;
}
/* dm is a transition */
Object sourceVertex = Model.getFacade().getSource(dm);
if (!(Model.getFacade().isAPseudostate(sourceVertex))) {
return NO_PROBLEM;
}
/* the source of the transition is a pseudostate */
if (!Model.getFacade().equalsPseudostateKind(
Model.getFacade().getKind(sourceVertex),
Model.getPseudostateKind().getChoice())) {
return NO_PROBLEM;
}
/* the source of the transition is a choice */
Object guard = Model.getFacade().getGuard(dm);
boolean noGuard =
(guard == null
|| Model.getFacade().getExpression(guard) == null
|| Model.getFacade().getBody(
Model.getFacade().getExpression(guard)) == null
|| ((String) Model.getFacade().getBody(
Model.getFacade().getExpression(guard)))
.length() == 0);
if (noGuard) {
return PROBLEM_FOUND;
}
return NO_PROBLEM;
}
/*
* @see org.argouml.uml.cognitive.critics.CrUML#getCriticizedDesignMaterials()
*/
public Set<Object> getCriticizedDesignMaterials() {
Set<Object> ret = new HashSet<Object>();
ret.add(Model.getMetaTypes().getTransition());
return ret;
}
}