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/*****************************************************************************
* Copyright (c) 2010 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:
* Remi Schnekenburger (CEA LIST) remi.schnekenburger@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.views.properties.runtime.controller.descriptor;
import java.util.List;
import org.eclipse.papyrus.views.properties.runtime.Activator;
import org.eclipse.papyrus.views.properties.runtime.modelhandler.ModelHandlerService;
import org.eclipse.papyrus.views.properties.runtime.modelhandler.emf.IEMFModelHandler;
import org.eclipse.papyrus.views.properties.runtime.propertyeditor.PropertyEditorService;
import org.eclipse.papyrus.views.properties.runtime.propertyeditor.descriptor.IPropertyEditorDescriptor;
import org.eclipse.papyrus.views.properties.runtime.view.constraints.ConstraintParser;
import org.eclipse.papyrus.views.properties.runtime.view.constraints.IConstraintDescriptor;
import org.osgi.framework.Bundle;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* Factory that creates the configuration for the EMFTPropertyEditorController.
*/
public class EMFTPropertyEditorControllerDescriptorFactory implements IPropertyEditorControllerDescriptorFactory {
/**
* Creates a new EMFTPropertyEditorControllerDescriptorFactory.
*/
public EMFTPropertyEditorControllerDescriptorFactory() {
}
/**
* {@inheritDoc}
*/
public EMFTPropertyEditorControllerDescriptor createDescriptor(Node controllerNode, Bundle bundle) {
// parse content of the node
String controllerID = "";
boolean multiSelection = true;
NamedNodeMap attributes = controllerNode.getAttributes();
for(int i = 0; i < attributes.getLength(); i++) {
Node attribute = attributes.item(i);
if("id".equals(attribute.getNodeName())) {
controllerID = attribute.getNodeValue();
}
}
String featureName = null;
IEMFModelHandler modelHandler = null;
IPropertyEditorDescriptor editorDescriptor = null;
List<IConstraintDescriptor> constraints = null;
NodeList children = controllerNode.getChildNodes();
for(int i = 0; i < children.getLength(); i++) {
Node child = children.item(i);
if("feature".equals(child.getNodeName())) {
// retrieve feature name, handler Id, etc.
NamedNodeMap featureAttributes = child.getAttributes();
if(featureAttributes != null) {
Node featureNameNode = featureAttributes.getNamedItem("name");
if(featureNameNode != null) {
featureName = featureNameNode.getNodeValue();
}
modelHandler = parseModelHandler(child);
}
} else if("editor".equals(child.getNodeName())) {
// retrieve editor id
if(child.hasAttributes()) {
Node editorIDNode = child.getAttributes().getNamedItem("id");
editorDescriptor = PropertyEditorService.getInstance().createPropertyEditorDescriptor(editorIDNode.getNodeValue(), child);
if(editorDescriptor == null) {
Activator.log.error("impossible to create editor descriptor", null);
}
}
} else if("constraints".equals(child.getNodeName())) {
constraints = ConstraintParser.parseConstraints(child, bundle);
}
}
assert (modelHandler != null) : "impossible to find handler for controller " + controllerID;
assert (featureName != null && !"".equals(featureName)) : "impossible to find feature name for controller " + controllerID;
assert (constraints != null) : "Impossible to parse constraints";
return new EMFTPropertyEditorControllerDescriptor(controllerID, multiSelection, featureName, modelHandler, editorDescriptor, constraints);
}
/**
* Parses the feature node to retrieve the right model handler
*
* @param node
* the feature node
* @return the model handler created
*/
protected IEMFModelHandler parseModelHandler(Node node) {
String handlerID = null;
NamedNodeMap featureAttributes = node.getAttributes();
if(featureAttributes != null) {
// retrieve handler id
Node handlerIDNameNode = featureAttributes.getNamedItem("handlerID");
if(handlerIDNameNode != null) {
handlerID = handlerIDNameNode.getNodeValue();
}
}
// check found handler id
if(handlerID == null) {
Activator.log.error("impossible to find model handler for node " + node, null);
return null;
}
Object modelHandler = ModelHandlerService.getInstance().createModelHandler(handlerID, node);
return (modelHandler instanceof IEMFModelHandler) ? (IEMFModelHandler)modelHandler : null;
}
}
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