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This open source software is a reference implementation, consisting of software and related files, for the OMG specification called the Semantics of a Foundational Subset for Executable UML Models (fUML). The reference implementation is intended to implement the execution semantics of UML activity models, accepting an XMI file from a conformant UML model as its input and providing an execution trace of the selected activity model(s) as its output. The core execution engine, which is directly generated from the normative syntactic and semantic models for fUML, may also be used as a library implementation of fUML in other software.

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/*
 * Initial version copyright 2008 Lockheed Martin Corporation, except  
 * as stated in the file entitled Licensing-Information. 
 * 
 * All modifications copyright 2009-2015 Data Access Technologies, Inc.
 *
 * Licensed under the Academic Free License version 3.0 
 * (http://www.opensource.org/licenses/afl-3.0.php), except as stated 
 * in the file entitled Licensing-Information. 
 */

package fUML.Semantics.Actions.CompleteActions;

import fUML.Debug;
import UMLPrimitiveTypes.*;

import fUML.Syntax.*;
import fUML.Syntax.Classes.Kernel.*;
import fUML.Syntax.CommonBehaviors.BasicBehaviors.*;
import fUML.Syntax.CommonBehaviors.Communications.*;
import fUML.Syntax.Activities.IntermediateActivities.*;
import fUML.Syntax.Actions.BasicActions.*;
import fUML.Syntax.Actions.IntermediateActions.*;
import fUML.Syntax.Actions.CompleteActions.*;

import fUML.Semantics.*;
import fUML.Semantics.Classes.Kernel.*;
import fUML.Semantics.CommonBehaviors.BasicBehaviors.*;
import fUML.Semantics.Activities.IntermediateActivities.*;
import fUML.Semantics.Actions.BasicActions.*;
import fUML.Semantics.Actions.IntermediateActions.*;
import fUML.Semantics.Loci.*;

public class ReclassifyObjectActionActivation extends
		fUML.Semantics.Actions.BasicActions.ActionActivation {

	public void doAction() {
		// Get the value of the object input pin. If it is not a reference, then
		// do nothing. Otherwise, do the following.
		// Remove all types from the referent object that are in the set of old
		// classifiers but not the set of new classifiers (or just all types
		// that are not new classifiers, if isReplaceAll is true).
		// Remove the feature values from the referent object for all
		// classifiers that are removed.
		// Add all new classifiers as types of the referent object that are not
		// already types.
		// Add feature values to the referent object for the structural
		// features of all added classifiers.
		// Any features that previously had values maintain those values,
		// while new features are initialized as being empty.

		ReclassifyObjectAction action = (ReclassifyObjectAction) (this.node);
		ClassifierList newClassifiers = action.newClassifier;
		ClassifierList oldClassifiers = action.oldClassifier;

		Value input = this.takeTokens(action.object).getValue(0);
		
		if (input instanceof Reference) {
			Object_ object = ((Reference) input).referent;

			int i = 1;
			while (i <= object.types.size()) {
				Class_ type = object.types.getValue(i - 1);

				boolean toBeRemoved = true;
				int j = 1;
				while (toBeRemoved & j <= newClassifiers.size()) {
					toBeRemoved = (type != newClassifiers.getValue(j - 1));
					j = j + 1;
				}

				if (toBeRemoved & !action.isReplaceAll) {
					boolean notInOld = true;
					int k = 1;
					while (notInOld & k <= oldClassifiers.size()) {
						notInOld = (type != oldClassifiers.getValue(k - 1));
						k = k + 1;
					}
					toBeRemoved = !notInOld;
				}

				if (toBeRemoved) {
					object.types.removeValue(i - 1);
				} else {
					i = i + 1;
				}
			}

			for (int n = 0; n < newClassifiers.size(); n++) {
				Classifier classifier = newClassifiers.getValue(n);

				boolean toBeAdded = true;
				int j = 1;
				while (toBeAdded & j <= object.types.size()) {
					toBeAdded = (classifier != object.types.getValue(j - 1));
					j = j + 1;
				}

				if (toBeAdded) {
					object.types.addValue((Class_) classifier);
				}
			}
			
			FeatureValueList oldFeatureValues = object.getFeatureValues();
			object.featureValues = new FeatureValueList();
			object.addFeatureValues(oldFeatureValues);
		}
	} // doAction

} // ReclassifyObjectActionActivation