protected B getTargetBo(ICreateConnectionContext context) {
if (context.getTargetAnchor() != null) {
return BusinessObjectUtil.getFirstElementOfType(
context.getTargetAnchor().getParent(), getTargetClass());
}
return null;
}
// Checks if user can create relationship object in the target
// business object
@Override
public boolean canCreate(ICreateConnectionContext context) {
// return true if both anchors belong to a TNodeTemplate
// and those TNodeTemplates are not identical
TNodeTemplate source = getTNodeTemplate(context.getSourceAnchor());
TNodeTemplate target = getTNodeTemplate(context.getTargetAnchor());
if (source != null && target != null && source != target) {
return true;
}
return false;
}
/** Criteria that a node can be created - the target */
@Override
public boolean canCreate(ICreateConnectionContext context) {
PictogramElement pe = context.getSourcePictogramElement();
PictogramElement peS = context.getTargetPictogramElement();
if (this.getBusinessObjectForPictogramElement(pe) != null) {
if (this.getBusinessObjectForPictogramElement(pe) instanceof StandardNode) {
// StandardNode ss = (StandardNode)this.getBusinessObjectForPictogramElement(peS);
return true;
}
}
return false;
}
@Override
public boolean canStartConnection(ICreateConnectionContext context) {
// return true if start anchor belongs to a TNodeTemplate
if (getTNodeTemplate(context.getSourceAnchor()) != null) {
return true;
}
return false;
}
@Override
public Connection create(ICreateConnectionContext context) {
try {
A source = getSourceBo(context);
B target = getTargetBo(context);
ModelHandler mh = ModelHandler.getInstance(getDiagram());
AddConnectionContext addContext =
new AddConnectionContext(context.getSourceAnchor(), context.getTargetAnchor());
BaseElement flow = createFlow(mh, source, target);
// flow.setId(EcoreUtil.generateUUID());
addContext.setNewObject(flow);
Connection connection = (Connection) getFeatureProvider().addIfPossible(addContext);
ModelUtil.setID(flow);
return connection;
} catch (IOException e) {
Activator.logError(e);
}
return null;
}
@Override
public Connection create(ICreateConnectionContext context) {
Connection newConnection = null;
// get EClasses which should be connected
StandardNode source = getStandardNode(context.getSourcePictogramElement());
StandardNode target = getStandardNode(context.getTargetPictogramElement());
if (source != null && target != null && target != source) {
// create new business object
Link l = createLink(source, target);
if (l == null) {
return null;
}
// add connection for business object
AddConnectionContext addContext =
new AddConnectionContext(context.getSourceAnchor(), context.getTargetAnchor());
addContext.setNewObject(l);
newConnection = (Connection) getFeatureProvider().addIfPossible(addContext);
PictogramElement pes = context.getSourcePictogramElement();
PictogramElement pet = context.getTargetPictogramElement();
if (source.getEdge().getChildNode().size() == 0) {
pet.getGraphicsAlgorithm().setX(pes.getGraphicsAlgorithm().getX());
pet.getGraphicsAlgorithm()
.setY(pes.getGraphicsAlgorithm().getY() + pes.getGraphicsAlgorithm().getHeight() + 45);
}
}
return newConnection;
}
// Creates the business object for the relationship
@Override
public Connection create(ICreateConnectionContext context) {
Connection newConnection = null;
// get TNodeTemplates which should be connected
TNodeTemplate source = getTNodeTemplate(context.getSourceAnchor());
TNodeTemplate target = getTNodeTemplate(context.getTargetAnchor());
if (source != null && target != null) {
// create new business object
TRelationshipTemplate newClass = ToscaFactory.eINSTANCE.createTRelationshipTemplate();
newClass.setName("Relation");
newClass.setId(("R" + (Integer) newClass.hashCode()).toString());
newClass.setType(new QName("Bidirected"));
// newClass.setType( new QName("Peer - Peer") );
SourceElementType se = ToscaFactory.eINSTANCE.createSourceElementType();
se.setRef(source.getId());
newClass.setSourceElement(se);
TargetElementType te = ToscaFactory.eINSTANCE.createTargetElementType();
te.setRef(target.getId());
newClass.setTargetElement(te);
ContainerShape sourceContainer = (ContainerShape) context.getSourcePictogramElement();
Object parentObject =
getFeatureProvider().getBusinessObjectForPictogramElement(sourceContainer.getContainer());
TServiceTemplate serviceTemplate = null;
if (parentObject == null) return null;
if (parentObject instanceof TServiceTemplate) {
serviceTemplate = (TServiceTemplate) parentObject;
}
TTopologyTemplate topology = null;
topology = serviceTemplate.getTopologyTemplate();
topology.getRelationshipTemplate().add(newClass);
// add connection for business object
AddConnectionContext addContext =
new AddConnectionContext(context.getSourceAnchor(), context.getTargetAnchor());
addContext.setNewObject(newClass);
newConnection = (Connection) getFeatureProvider().addIfPossible(addContext);
}
return newConnection;
}
@Override
public boolean canStartConnection(ICreateConnectionContext context) {
PictogramElement pe = context.getSourcePictogramElement();
if (this.getBusinessObjectForPictogramElement(pe) != null) {
if (this.getBusinessObjectForPictogramElement(pe) instanceof StandardNode) {
StandardNode st = (StandardNode) this.getBusinessObjectForPictogramElement(pe);
if (st.getEdge() == null
|| (st.getEdge() != null
&& st.getEdge().getComposition().getValue() != Composition.ATOMIC_VALUE)) {
return true;
}
}
}
return false;
}
