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/*****************************************************************************
* Copyright (c) 2011 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.sysml.diagram.blockdefinition.dnd.helper;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.papyrus.gmf.diagram.common.edit.policy.ILinkMappingHelper;
import org.eclipse.papyrus.uml.diagram.common.dnd.helper.LinkMappingHelper.CommonSourceUMLSwitch;
import org.eclipse.papyrus.uml.diagram.common.dnd.helper.LinkMappingHelper.CommonTargetUMLSwitch;
import org.eclipse.uml2.uml.Classifier;
import org.eclipse.uml2.uml.Element;
import org.eclipse.uml2.uml.Property;
import org.eclipse.uml2.uml.Type;
/**
* The Class LinkMappingHelper is specialization of the link mapping helper for the Class diagram
*/
public class CustomLinkMappingHelper implements ILinkMappingHelper {
/**
* {@inheritDoc}
*/
public Collection<?> getSource(Element link) {
CommonSourceUMLSwitch umlSwitch = new CommonSourceUMLSwitch() {
public java.util.Collection<?> caseAssociation(org.eclipse.uml2.uml.Association object) {
java.util.Collection<?> ends = Collections.emptySet();
// Binary associations only in this diagram.
// Other expectation:
// - property ends are typed by Classifiers
// - property ends are type is not null
if(object.getMemberEnds().size() == 2) {
Property semanticTarget = object.getMemberEnds().get(1);
// The proposed graphical target is a representation of the type of
// the semantic source.
Type sourceType = semanticTarget.getType();
if ((sourceType != null) && (sourceType instanceof Classifier)) {
ends = Arrays.asList(new EObject[]{sourceType});
}
} else {
// TODO: log warning here - can only drop binary associations in this diagram...
}
return ends;
};
// public java.util.Collection<?> caseAssociationClass(org.eclipse.uml2.uml.AssociationClass object) {
// return object.getEndTypes();
// };
// public java.util.Collection<?> caseGeneralizationSet(org.eclipse.uml2.uml.GeneralizationSet object) {
// return object.getGeneralizations();
// };
public java.util.Collection<?> caseInterfaceRealization(org.eclipse.uml2.uml.InterfaceRealization object) {
ArrayList<EObject> result = new ArrayList<EObject>();
result.add(object.getImplementingClassifier());
return result;
};
};
return umlSwitch.doSwitch(link);
}
/**
* {@inheritDoc}
*/
public Collection<?> getTarget(Element link) {
CommonTargetUMLSwitch umlSwitch = new CommonTargetUMLSwitch() {
public java.util.Collection<?> caseAssociation(org.eclipse.uml2.uml.Association object) {
java.util.Collection<?> ends = Collections.emptySet();
// Binary associations only in this diagram.
// Other expectation:
// - property ends are typed by Classifiers
// - property ends are type is not null
if(object.getMemberEnds().size() == 2) {
Property semanticSource = object.getMemberEnds().get(0);
// The proposed graphical target is a representation of the type of
// the semantic source.
Type sourceType = semanticSource.getType();
if ((sourceType != null) && (sourceType instanceof Classifier)) {
ends = Arrays.asList(new EObject[]{sourceType});
}
} else {
// TODO: log warning here - can only drop binary associations in this diagram...
}
return ends;
};
// public java.util.Collection<?> caseAssociationClass(org.eclipse.uml2.uml.AssociationClass object) {
// return object.getEndTypes();
// };
// public java.util.Collection<?> caseGeneralizationSet(org.eclipse.uml2.uml.GeneralizationSet object) {
// return object.getGeneralizations();
// };
public java.util.Collection<?> caseInterfaceRealization(org.eclipse.uml2.uml.InterfaceRealization object) {
ArrayList<EObject> result = new ArrayList<EObject>();
result.add(object.getContract());
return result;
};
};
return umlSwitch.doSwitch(link);
}
}
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