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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.
/*
* Initial version copyright 2008 Lockheed Martin Corporation, except
* as stated in the file entitled Licensing-Information.
*
* All modifications copyright 2009-2012 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.Activities.IntermediateActivities;
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.Semantics.*;
import fUML.Semantics.Classes.Kernel.*;
import fUML.Semantics.CommonBehaviors.BasicBehaviors.*;
import fUML.Semantics.Actions.BasicActions.*;
import fUML.Semantics.Loci.*;
public class Offer extends org.modeldriven.fuml.FumlObject {
public fUML.Semantics.Activities.IntermediateActivities.TokenList offeredTokens = new fUML.Semantics.Activities.IntermediateActivities.TokenList();
public int countOfferedValues() {
// Return the number of values being offered on object tokens.
// Remove any tokens that have already been withdrawn and don't include
// them in the count.
this.removeWithdrawnTokens();
int count = 0;
for (int i = 0; i < this.offeredTokens.size(); i++) {
if (this.offeredTokens.getValue(i).getValue() != null) {
count = count + 1;
}
}
return count;
} // countOfferedValues
public fUML.Semantics.Activities.IntermediateActivities.TokenList getOfferedTokens() {
// Get the offered tokens, removing any that have been withdrawn.
this.removeWithdrawnTokens();
TokenList tokens = new TokenList();
TokenList offeredTokens = this.offeredTokens;
for (int i = 0; i < this.offeredTokens.size(); i++) {
Token offeredToken = offeredTokens.getValue(i);
// Debug.println("[getOfferedTokens] token value = " +
// offeredToken.getValue());
tokens.addValue(offeredToken);
}
return tokens;
} // getOfferedTokens
public void removeOfferedValues(int count) {
// Remove the given number of non-null object tokens from those in this
// offer.
int n = count;
int i = 1;
while (n > 0) {
if (this.offeredTokens.getValue(i - 1).getValue() != null) {
this.offeredTokens.removeValue(i - 1);
} else {
i = i + 1;
}
n = n - 1;
}
} // removeOfferedValues
public void removeWithdrawnTokens() {
// Remove any tokens that have already been consumed.
TokenList offeredTokens = this.offeredTokens;
int i = 1;
while (i <= this.offeredTokens.size()) {
if (this.offeredTokens.getValue(i - 1).isWithdrawn()) {
this.offeredTokens.remove(i - 1);
i = i - 1;
}
i = i + 1;
}
} // removeWithdrawnTokens
public boolean hasTokens() {
// Check whether this offer has any tokens that have not been withdrawn.
this.removeWithdrawnTokens();
return this.offeredTokens.size() > 0;
} // hasTokens
} // Offer