+const char* toString(ModelAPI_ExecState theExecState)
+{
+#define TO_STRING(__NAME__) case __NAME__: return #__NAME__;
+ switch (theExecState) {
+ TO_STRING(ModelAPI_StateDone)
+ TO_STRING(ModelAPI_StateMustBeUpdated)
+ TO_STRING(ModelAPI_StateExecFailed)
+ TO_STRING(ModelAPI_StateInvalidArgument)
+ TO_STRING(ModelAPI_StateNothing)
+ default: return "Unknown ExecState.";
+ }
+#undef TO_STRING
+}
+
+std::string getFeatureError(const FeaturePtr& theFeature)
+{
+ std::string anError;
+ if (!theFeature.get() || !theFeature->data()->isValid() || theFeature->isAction())
+ return anError;
+
+ // to be removed later, this error should be got from the feature
+ if (theFeature->data()->execState() == ModelAPI_StateDone ||
+ theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
+ return anError;
+
+ // set error indication
+ anError = theFeature->error();
+ if (anError.empty()) {
+ bool isDone = ( theFeature->data()->execState() == ModelAPI_StateDone
+ || theFeature->data()->execState() == ModelAPI_StateMustBeUpdated );
+ if (!isDone) {
+ anError = toString(theFeature->data()->execState());
+ // If the feature is Composite and error is StateInvalidArgument,
+ // error text should include error of first invalid sub-feature. Otherwise
+ // it is not clear what is the reason of the invalid argument.
+ if (theFeature->data()->execState() == ModelAPI_StateInvalidArgument) {
+ CompositeFeaturePtr aComposite =
+ std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
+ if (aComposite) {
+ for (int i = 0, aSize = aComposite->numberOfSubs(); i < aSize; i++) {
+ FeaturePtr aSubFeature = aComposite->subFeature(i);
+ std::string aSubFeatureError = getFeatureError(aSubFeature);
+ if (!aSubFeatureError.empty()) {
+ anError = anError + " in " + aSubFeature->getKind() + ".\n" + aSubFeatureError;
+ break;
+ }
+ }
+ }
+ }
+ }
+ }
+
+ return anError;
+}
+