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/**
* Copyright (c) 2012 Mia-Software.
*
* 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:
* Alban Ménager (Soft-Maint) - Bug 387470 - [EFacet][Custom] Editors
* Grégoire Dupé (Mia-Software) - Bug 387470 - [EFacet][Custom] Editors
*/
package org.eclipse.emf.facet.efacet.sdk.ui.internal.widget.creation;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.ecore.EAttribute;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.EOperation;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.ETypedElement;
import org.eclipse.emf.ecore.EcorePackage;
import org.eclipse.emf.facet.efacet.metamodel.v0_2_0.efacet.Facet;
import org.eclipse.emf.facet.efacet.metamodel.v0_2_0.efacet.FacetAttribute;
import org.eclipse.emf.facet.util.ui.internal.exported.dialog.IDialog;
import org.eclipse.emf.facet.util.ui.internal.exported.util.widget.command.AbstractGetOrCreateFilteredElementCommandWidget;
import org.eclipse.swt.widgets.Composite;
/**
* Widget for the selection and/or creation of an element in a list.
*/
public class GetFilteredSubTypingTypeWidget extends
AbstractGetOrCreateFilteredElementCommandWidget<ETypedElement, Object> {
private final EClass context;
private final Facet facet;
/**
* Constructor.
*
* @param parent
* the parent of this widget.
* @param properties
* the properties.
*/
public GetFilteredSubTypingTypeWidget(final Composite parent, final EClass context,
final Facet facet) {
super(parent);
this.context = context;
this.facet = facet;
}
@Override
protected Map<String, ETypedElement> getElements() {
final Map<String, ETypedElement> allElements = new HashMap<String, ETypedElement>();
if (this.context != null) {
allElements.putAll(getAttributes(this.context));
allElements.putAll(getOperations(this.context.getEAllOperations()));
}
if (this.facet != null) {
allElements.putAll(getFacetAttributes(this.facet));
allElements.putAll(getOperations(this.facet.getFacetOperations()));
}
return allElements;
}
/**
* @param facet
* @return
*/
private static Map<String, ETypedElement> getFacetAttributes(
final Facet facet) {
final Map<String, ETypedElement> allElements = new HashMap<String, ETypedElement>();
for (final EStructuralFeature element : facet.getFacetElements()) {
final EClassifier eType = element.getEType();
if ((element instanceof FacetAttribute)
&& eType.equals(
EcorePackage.eINSTANCE.getEBoolean())) {
allElements.put(element.getName(), element);
}
}
return allElements;
}
/**
* @param context
* @return
*/
private static Map<String, ETypedElement> getOperations(
final List<? extends EOperation> elements) {
final Map<String, ETypedElement> allElements = new HashMap<String, ETypedElement>();
for (final EOperation operation : elements) {
// Get all the operations returning a boolean and without any
// parameter.
if (operation.getEType().equals(
EcorePackage.eINSTANCE.getEBoolean())
&& (operation.getEParameters().size() == 0)) {
allElements.put(operation.getName(), operation);
}
}
return allElements;
}
/**
* @param context
* @return
*/
private static Map<String, ETypedElement> getAttributes(
final EClass context) {
final Map<String, ETypedElement> allElements = new HashMap<String, ETypedElement>();
for (final EAttribute attribute : context.getEAllAttributes()) {
if (attribute.getEType().equals(
EcorePackage.eINSTANCE.getEBoolean())) {
allElements.put(attribute.getName(), attribute);
}
}
return allElements;
}
@Override
protected IDialog<Object> createDialog() {
// No element can be created.
return null;
}
/**
* @return the selected element in the filtredList.
*/
public ETypedElement getSubTypeSelected() {
return getElementSelected();
}
@Override
public Command getCommand() {
// Here, this widget only return a selected element so, no command is
// returned.
return null;
}
@Override
public void notifyChanged() {
// No action has to be done if a change appends.
}
@Override
public void onDialogValidation() {
// Nothing.
}
}
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