/**
* Returns the source of a relation. The source of a relation is defined as the modelelement that
* propagates this relation. If there are more then 1 sources, only the first is returned. If
* there is no source, null is returned. Examples of sources include classifiers that are types to
* associationends, usecases that are bases to extend and include relations and so on.
*
* @param relation
* @return MModelElement
*/
public MModelElement getSource(MRelationship relation) {
if (relation instanceof MAssociation) {
MAssociation assoc = (MAssociation) relation;
List conns = assoc.getConnections();
if (conns.isEmpty()) return null;
return ((MAssociationEnd) conns.get(0)).getType();
}
if (relation instanceof MGeneralization) {
MGeneralization gen = (MGeneralization) relation;
return gen.getParent();
}
if (relation instanceof MDependency) {
MDependency dep = (MDependency) relation;
Collection col = dep.getSuppliers();
if (col.isEmpty()) return null;
return (MModelElement) (col.toArray())[0];
}
if (relation instanceof MFlow) {
MFlow flow = (MFlow) relation;
Collection col = flow.getSources();
if (col.isEmpty()) return null;
return (MModelElement) (col.toArray())[0];
}
if (relation instanceof MExtend) {
MExtend extend = (MExtend) relation;
return extend.getExtension(); // we have to follow the arrows..
}
if (relation instanceof MInclude) {
MInclude include = (MInclude) relation;
return include.getBase();
}
return null;
}
/**
* Returns the destination of a relation. The destination of a relation is defined as the
* modelelement that receives this relation. If there are more then 1 destinations, only the first
* is returned. If there is no destination, null is returned. Examples of sources include
* classifiers that are types to associationends, usecases that are bases to extend and include
* relations and so on. In the case of an association, the destination is defined as the type of
* the second element in the connections list.
*
* @param relation
* @return MModelElement
*/
public MModelElement getDestination(MRelationship relation) {
if (relation instanceof MAssociation) {
MAssociation assoc = (MAssociation) relation;
List conns = assoc.getConnections();
if (conns.size() <= 1) return null;
return ((MAssociationEnd) conns.get(1)).getType();
}
if (relation instanceof MGeneralization) {
MGeneralization gen = (MGeneralization) relation;
return gen.getChild();
}
if (relation instanceof MDependency) {
MDependency dep = (MDependency) relation;
Collection col = dep.getClients();
if (col.isEmpty()) return null;
return (MModelElement) (col.toArray())[0];
}
if (relation instanceof MFlow) {
MFlow flow = (MFlow) relation;
Collection col = flow.getTargets();
if (col.isEmpty()) return null;
return (MModelElement) (col.toArray())[0];
}
if (relation instanceof MExtend) {
MExtend extend = (MExtend) relation;
return extend.getBase();
}
if (relation instanceof MInclude) {
MInclude include = (MInclude) relation;
return include.getAddition();
}
return null;
}
/**
* Returns all Interfaces of which this class is a realization.
*
* @param cls the class you want to have the interfaces for
* @return a collection of the Interfaces
*/
public Collection getSpecifications(MClassifier cls) {
Collection result = new Vector();
Collection deps = cls.getClientDependencies();
Iterator depIterator = deps.iterator();
while (depIterator.hasNext()) {
MDependency dep = (MDependency) depIterator.next();
if ((dep instanceof MAbstraction)
&& dep.getStereotype() != null
&& dep.getStereotype().getName() != null
&& dep.getStereotype().getName().equals("realize")) {
MInterface i = (MInterface) dep.getSuppliers().toArray()[0];
result.add(i);
}
}
return result;
}
/** Return a Fig that can be used to represent the given edge */
public FigEdge getFigEdgeFor(GraphModel gm, Layer lay, Object edge) {
if (edge instanceof MDependency) {
MDependency dep = (MDependency) edge;
FigDependency depFig = new FigDependency(dep);
MModelElement supplier = (MModelElement) ((dep.getSuppliers().toArray())[0]);
MModelElement client = (MModelElement) ((dep.getClients().toArray())[0]);
FigNode supFN = (FigNode) lay.presentationFor(supplier);
FigNode cliFN = (FigNode) lay.presentationFor(client);
depFig.setSourcePortFig(cliFN);
depFig.setSourceFigNode(cliFN);
depFig.setDestPortFig(supFN);
depFig.setDestFigNode(supFN);
depFig.getFig().setLayer(lay);
depFig.getFig().setDashed(true);
return depFig;
}
if (edge instanceof MAssociation) {
MAssociation asc = (MAssociation) edge;
FigAssociation ascFig = new FigAssociation(asc, lay);
Collection connections = asc.getConnections();
if (connections == null) System.out.println("null connections....");
Object[] connArray = connections.toArray();
MAssociationEnd fromEnd = (MAssociationEnd) connArray[0];
MClassifier fromCls = (MClassifier) fromEnd.getType();
MAssociationEnd toEnd = (MAssociationEnd) connArray[1];
MClassifier toCls = (MClassifier) toEnd.getType();
FigNode fromFN = (FigNode) lay.presentationFor(fromCls);
FigNode toFN = (FigNode) lay.presentationFor(toCls);
ascFig.setSourcePortFig(fromFN);
ascFig.setSourceFigNode(fromFN);
ascFig.setDestPortFig(toFN);
ascFig.setDestFigNode(toFN);
ascFig.getFig().setLayer(lay);
return ascFig;
}
return null;
}
public void setOwner(Object own) {
Object oldOwner = getOwner();
super.setOwner(own);
if (own instanceof MDependency) {
MDependency newDep = (MDependency) own;
for (int i = 0; i < newDep.getSuppliers().size(); i++) {
((MModelElement) ((Object[]) newDep.getSuppliers().toArray())[i])
.removeMElementListener(this);
((MModelElement) ((Object[]) newDep.getSuppliers().toArray())[i]).addMElementListener(this);
}
for (int i = 0; i < newDep.getClients().size(); i++) {
((MModelElement) ((Object[]) newDep.getClients().toArray())[i])
.removeMElementListener(this);
((MModelElement) ((Object[]) newDep.getClients().toArray())[i]).addMElementListener(this);
}
newDep.removeMElementListener(this);
newDep.addMElementListener(this);
MModelElement supplier = (MModelElement) ((newDep.getSuppliers().toArray())[0]);
MModelElement client = (MModelElement) ((newDep.getClients().toArray())[0]);
FigNode supFN = (FigNode) getLayer().presentationFor(supplier);
FigNode cliFN = (FigNode) getLayer().presentationFor(client);
if (cliFN != null) {
setSourcePortFig(cliFN);
setSourceFigNode(cliFN);
}
if (supFN != null) {
setDestPortFig(supFN);
setDestFigNode(supFN);
}
}
}
