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/*****************************************************************************
* Copyright (c) 2012 CEA LIST.
*
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* CEA LIST - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.moka.fuml.Semantics.Actions.IntermediateActions;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.papyrus.moka.fuml.Semantics.Classes.Kernel.ExtensionalValue;
import org.eclipse.papyrus.moka.fuml.Semantics.Classes.Kernel.FeatureValue;
import org.eclipse.papyrus.moka.fuml.Semantics.Classes.Kernel.Link;
import org.eclipse.uml2.uml.LinkEndData;
import org.eclipse.uml2.uml.ReadLinkAction;
public class ReadLinkActionActivation extends LinkActionActivation {
public void doAction() {
// Get the extent, at the current execution locus, of the association to
// which the action applies.
// For all links that match the link end data, place the value of the
// remaining "open" end on the result pin.
ReadLinkAction action = (ReadLinkAction)(this.node);
List<LinkEndData> endDataList = action.getEndData();
LinkEndData openEnd = null;
int i = 1;
while((openEnd == null) & i <= endDataList.size()) {
if(endDataList.get(i - 1).getValue() == null) {
openEnd = endDataList.get(i - 1);
}
i = i + 1;
}
List<ExtensionalValue> extent = this.getExecutionLocus().getExtent(this.getAssociation());
List<FeatureValue> featureValues = new ArrayList<FeatureValue>();
for(int j = 0; j < extent.size(); j++) {
ExtensionalValue value = extent.get(j);
Link link = (Link)value;
if(this.linkMatchesEndData(link, endDataList)) {
FeatureValue featureValue = link.getFeatureValue(openEnd.getEnd());
if(!openEnd.getEnd().isOrdered() | featureValues.size() == 0) {
featureValues.add(featureValue);
} else {
int n = featureValue.position;
boolean continueSearching = true;
int k = 0;
while(continueSearching & k < featureValues.size()) {
k = k + 1;
continueSearching = featureValues.get(k - 1).position < n;
}
if(continueSearching) {
featureValues.add(featureValue);
} else {
featureValues.add(k - 1, featureValue);
}
}
}
}
for(int j = 0; j < featureValues.size(); j++) {
FeatureValue featureValue = featureValues.get(j);
this.putToken(action.getResult(), featureValue.values.get(0));
}
// Now that matching is done, ensure that all tokens on end data input
// pins
// are consumed.
for(int k = 0; k < endDataList.size(); k++) {
LinkEndData endData = endDataList.get(k);
if(endData.getValue() != null) {
this.takeTokens(endData.getValue());
}
}
}
}
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