private Property resolveFeature(Object contextValue) {
Property result =
MofClassSemantics.createClassClassifierForUmlClass(
(UmlClass) getTypeForObject(contextValue))
.getProperty(self.getActionBody());
if (result == null) {
throw new SemanticException("Feature could not be resolved.");
}
return result;
}
@Override
public void fire(ActivityInstance context) {
// perform all as semantics actions
Object contextValue = null;
MofClassSemantics semantics = null;
switch (self.getActionKind()) {
case EXPRESSION:
DebugInfo.printInfo("eval " + self.getActionBody());
propagateOutput(
evaluateExpression(self, self.getActionBody(), self.getInput(), context),
true,
context);
break;
case CALL:
DebugInfo.printInfo("call " + self.getActionBody());
String operationName = getActionBody();
;
contextValue = context.getOclContext();
ReflectiveSequence<Argument> arguments = new ListImpl<Argument>();
for (InputPin pin : self.getInput()) {
if (pin instanceof ContextPin) {
contextValue = ((PinInstance) context.getPlaces(pin)).getValue();
} else {
arguments.add(
new ArgumentImpl(null, ((PinInstance) context.getPlaces(pin)).getValue()));
}
}
if (contextValue == null) {
throw new SemanticException("Context must not be null for call " + self.getActionBody());
}
semantics =
MofClassSemantics.createClassClassifierForUmlClass(
(UmlClass) getTypeForObject(contextValue));
for (InputPin inputPin : self.getInput()) {
if (!(inputPin instanceof ContextPin)) {
operationName +=
"_" + getTypeOfValue(((PinInstance) context.getPlaces(inputPin)).getValue());
}
}
Operation operation = semantics.getFinalOperation(operationName);
if (operation == null) {
throw new SemanticException(
"The arguments of action "
+ toString()
+ "(call "
+ operationName
+ ") does not match to an operation in the given context.");
}
Object result =
((cmof.reflection.Object) contextValue).invokeOperation(operation, arguments);
propagateOutput(result, false, context);
DebugInfo.printInfo("end call " + self.getActionBody());
break;
case PRINT:
System.out.println(self.getActionBody());
break;
case WRITE_STRUCTURAL_FEATURE:
DebugInfo.printInfo("set " + self.getActionBody());
contextValue = context.getOclContext();
Object featureValue = null;
Object qualifierValue = null;
for (InputPin pin : self.getInput()) {
if (pin instanceof ContextPin) {
contextValue = ((PinInstance) context.getPlaces(pin)).getValue();
} else {
if (featureValue != null) {
if (qualifierValue != null) {
throw new SemanticException(
"To much input pins for a write structural feature action.");
}
qualifierValue = featureValue;
}
featureValue = ((PinInstance) context.getPlaces(pin)).getValue();
if (featureValue instanceof MofClassSemantics) {
System.out.println("Fehler!!!");
}
}
}
Property feature = resolveFeature(contextValue);
if (qualifierValue != null) {
if (feature.getQualifier() == null) {
throw new SemanticException(
"To much input pins for a write structural feature action without qualifier.");
}
((cmof.reflection.Object) contextValue).set(feature, qualifierValue, featureValue);
} else {
if (feature.getQualifier() != null) {
throw new SemanticException(
"Not enough input pins for a write structural feature action with qualifier.");
}
((cmof.reflection.Object) contextValue).set(feature, featureValue);
}
break;
case WRITE_STRUCTURAL_FEATURE_VALUE:
DebugInfo.printInfo("add " + self.getActionBody());
contextValue = context.getOclContext();
featureValue = null;
for (InputPin pin : self.getInput()) {
if (pin instanceof ContextPin) {
contextValue = ((PinInstance) context.getPlaces(pin)).getValue();
} else {
if (featureValue != null) {
throw new SemanticException(
"To much input pins for a write structural feature action.");
}
featureValue = ((PinInstance) context.getPlaces(pin)).getValue();
}
}
feature = resolveFeature(contextValue);
((ReflectiveSequence) ((cmof.reflection.Object) contextValue).get(feature))
.add(featureValue);
break;
case REMOVE_STRUCTURAL_FEATURE_VALUE:
DebugInfo.printInfo("remove " + self.getActionBody());
contextValue = context.getOclContext();
featureValue = null;
for (InputPin pin : self.getInput()) {
if (pin instanceof ContextPin) {
contextValue = ((PinInstance) context.getPlaces(pin)).getValue();
} else {
if (featureValue != null) {
throw new SemanticException(
"To much input pins for a write structural feature action.");
}
featureValue = ((PinInstance) context.getPlaces(pin)).getValue();
}
}
feature = resolveFeature(contextValue);
((ReflectiveSequence) ((cmof.reflection.Object) contextValue).get(feature))
.remove(featureValue);
break;
case CREATE_OBJECT:
DebugInfo.printInfo("create " + self.getActionBody());
boolean hasContextClass = false;
contextValue = context.getOclContext();
for (InputPin pin : self.getInput()) {
if (pin instanceof ContextPin) {
contextValue = ((PinInstance) context.getPlaces(pin)).getValue();
hasContextClass = true;
} else {
throw new SemanticException(
"Only a single context pin is allowed for a create action.");
}
}
if (hasContextClass) {
UmlClass syntaxClass = (UmlClass) getTypeForObject(contextValue);
String className = self.getActionBody();
UmlClass runtimeClass = null;
for (Type classAsType : syntaxClass.getPackage().getOwnedType()) {
if (classAsType instanceof UmlClass && className.equals(classAsType.getName())) {
runtimeClass = (UmlClass) classAsType;
}
}
if (runtimeClass == null) {
throw new SemanticException(
"Class with name "
+ className
+ " does not exist in package "
+ syntaxClass.getPackage().getQualifiedName()
+ ".");
}
semantics = MofClassSemantics.createClassClassifierForUmlClass(syntaxClass);
Operation op =
semantics.getFinalOperation(M1SemanticModel.getCreateOperationName(runtimeClass));
result =
((cmof.reflection.Object) contextValue).invokeOperation(op, new ListImpl<Argument>());
propagateOutput(result, false, context);
} else {
throw new SemanticException("not implemented yet.");
}
break;
case PRINT_EXPRESSION:
System.out.println(
evaluateExpression(self, self.getActionBody(), self.getInput(), context));
break;
default:
System.out.println("WARNING: unknown action kind");
}
// call the actual petri net semantics perfom method
((Transition) getSuper(Transition.class)).fire(context);
}