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fUML.Semantics.CommonBehaviors.Communications.ClassifierBehaviorInvocationEventAccepter Maven / Gradle / Ivy

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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.CommonBehaviors.Communications;

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.Semantics.*;
import fUML.Semantics.Classes.Kernel.*;
import fUML.Semantics.CommonBehaviors.BasicBehaviors.*;
import fUML.Semantics.Loci.*;

public class ClassifierBehaviorInvocationEventAccepter extends EventAccepter {

	public fUML.Semantics.CommonBehaviors.BasicBehaviors.Execution execution = null;
	public fUML.Syntax.Classes.Kernel.Class_ classifier = null;
	public fUML.Semantics.CommonBehaviors.Communications.ObjectActivation objectActivation = null;

	public void invokeBehavior(
			fUML.Syntax.Classes.Kernel.Class_ classifier,
			fUML.Semantics.CommonBehaviors.BasicBehaviors.ParameterValueList inputs) {
		// Set the classifier for this classifier behavior invocation event accepter 
		// to the given class.
		// If the given class is a behavior, set the execution to be the object
		// of the object activation of the classifier behavior execution.
		// Otherwise the class must be an active class, so get an execution
		// object for the classifier behavior for the class.
		// Set the input parameters for the execution to the given values.
		// Then register this event accepter with the object activation.

		// Debug.println("[invokeBehavior] Invoking behavior for " + classifier.name +
		// "...");

		this.classifier = classifier;
		Object_ object = this.objectActivation.object;

		if (classifier instanceof Behavior) {
			this.execution = (Execution) object;
		} else {
			this.execution = object.locus.factory.createExecution(
					classifier.classifierBehavior, object);
		}

		if (inputs != null) {
			for (int i = 0; i < inputs.size(); i++) {
				ParameterValue input = inputs.getValue(i);
				this.execution.setParameterValue(input);
			}
		}
		
		this.objectActivation.register(this);

	}
	
	public boolean match(EventOccurrence eventOccurrence) {
		// Return true if the given event occurrence is an invocation event
		// occurrence for the execution of this classifier behavior invocation
		// event accepter.
		
		boolean matches = false;
		if (eventOccurrence instanceof InvocationEventOccurrence) {
			matches = ((InvocationEventOccurrence)eventOccurrence).execution == this.execution;
		}
		return matches;
	}
	
	public void accept(EventOccurrence eventOccurrence) {
		// Accept an invocation event occurrence. Execute the execution of this
		// classifier behavior invocation event accepter.
		
		if (eventOccurrence instanceof InvocationEventOccurrence) {
			this.execution.execute();
		}
	}
	
	public void terminate() {
		// Terminate the associated execution.
		// If the execution is not itself the object of the object activation,
		// then destroy it.

		// Debug.println("[terminate] Terminating behavior for " +
		// classifier.name + "...");

		this.execution.terminate();

		if (this.execution != this.objectActivation.object) {
			this.execution.destroy();
		}

	} // terminate

} // ClassifierBehaviorExecution




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