/**
* Copyright (c) 2012-2016 Marsha Chechik, Alessio Di Sandro, Michalis Famelis,
* Rick Salay.
* 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:
* Alessio Di Sandro - Implementation.
*/
package edu.toronto.cs.se.mmint.mid.ui;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.Viewer;
import edu.toronto.cs.se.mmint.mid.relationship.Mapping;
import edu.toronto.cs.se.mmint.mid.relationship.MappingReference;
import edu.toronto.cs.se.mmint.mid.relationship.ModelElementEndpointReference;
public class NewModelElementEndpointReferenceDialogContentProvider implements ITreeContentProvider {
private List<String> allowedModelElemTypeEndpointUris;
public NewModelElementEndpointReferenceDialogContentProvider(List<String> allowedModelElemTypeEndpointUris) {
this.allowedModelElemTypeEndpointUris = allowedModelElemTypeEndpointUris;
}
/**
* {@inheritDoc}
* This implementation does nothing.
*/
@Override
public void dispose() {
// do nothing
}
/**
* {@inheritDoc}
* This implementation does nothing.
*/
@Override
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
// do nothing
}
/**
* {@inheritDoc}
*/
@Override
public Object[] getElements(Object inputElement) {
return getChildren(inputElement);
}
/**
* {@inheritDoc}
*/
@Override
public Object[] getChildren(Object parentElement) {
if (parentElement instanceof Mapping) {
List<ModelElementEndpointReference> modelElemTypeEndpointRefs = new ArrayList<ModelElementEndpointReference>();
for (ModelElementEndpointReference modelElemTypeEndpointRef : ((Mapping) parentElement).getModelElemEndpointRefs()) {
if (allowedModelElemTypeEndpointUris == null || allowedModelElemTypeEndpointUris.contains(modelElemTypeEndpointRef.getUri())) {
modelElemTypeEndpointRefs.add(modelElemTypeEndpointRef);
}
}
return modelElemTypeEndpointRefs.toArray();
}
return new Object[] {};
}
/**
* {@inheritDoc}
*/
@Override
public Object getParent(Object element) {
if (element instanceof ModelElementEndpointReference) {
return ((MappingReference) ((ModelElementEndpointReference) element).eContainer()).getObject();
}
return null;
}
/**
* {@inheritDoc}
*/
@Override
public boolean hasChildren(Object element) {
if (element instanceof Mapping) {
return !((Mapping) element).getModelElemEndpointRefs().isEmpty();
}
return false;
}
}