plugins/org.eclipse.epf.library.edit/src/org/eclipse/epf/library/edit/category/CustomCategoryItemProvider.java - gerrit/epf/org.eclipse.epf.archive - Git at Google

 //------------------------------------------------------------------------------
 // Copyright (c) 2005, 2006 IBM Corporation and others.
 // 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:
 // IBM Corporation - initial implementation
 //------------------------------------------------------------------------------
 package org.eclipse.epf.library.edit.category;

 import java.net.URI;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Iterator;
 import java.util.List;
 import java.util.MissingResourceException;

 import org.eclipse.emf.common.command.Command;
 import org.eclipse.emf.common.command.UnexecutableCommand;
 import org.eclipse.emf.common.notify.AdapterFactory;
 import org.eclipse.emf.common.notify.Notification;
 import org.eclipse.emf.ecore.EClass;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.ecore.EReference;
 import org.eclipse.emf.ecore.EStructuralFeature;
 import org.eclipse.emf.ecore.util.EcoreUtil;
 import org.eclipse.emf.edit.EMFEditPlugin;
 import org.eclipse.emf.edit.command.AddCommand;
 import org.eclipse.emf.edit.command.CopyCommand.Helper;
 import org.eclipse.emf.edit.domain.EditingDomain;
 import org.eclipse.emf.edit.provider.INotifyChangedListener;
 import org.eclipse.emf.edit.provider.ITreeItemContentProvider;
 import org.eclipse.emf.edit.provider.ViewerNotification;
 import org.eclipse.epf.library.edit.IDefaultNameSetter;
 import org.eclipse.epf.library.edit.ILibraryItemProvider;
 import org.eclipse.epf.library.edit.LibraryEditPlugin;
 import org.eclipse.epf.library.edit.PresentationContext;
 import org.eclipse.epf.library.edit.command.MethodElementAddCommand;
 import org.eclipse.epf.library.edit.internal.TngAdapterFactoryImpl;
 import org.eclipse.epf.library.edit.util.LibraryEditConstants;
 import org.eclipse.epf.library.edit.util.MethodElementUtil;
 import org.eclipse.epf.library.edit.util.ModelStructure;
 import org.eclipse.epf.library.edit.util.TngUtil;
 import org.eclipse.epf.uma.ContentPackage;
 import org.eclipse.epf.uma.CustomCategory;
 import org.eclipse.epf.uma.DescribableElement;
 import org.eclipse.epf.uma.MethodElement;
 import org.eclipse.epf.uma.MethodPlugin;
 import org.eclipse.epf.uma.UmaFactory;
 import org.eclipse.epf.uma.UmaPackage;
 import org.eclipse.epf.uma.VariabilityElement;
 import org.eclipse.epf.uma.edit.command.MethodElementCreateCopyCommand;
 import org.eclipse.epf.uma.edit.command.MethodElementInitializeCopyCommand;
 import org.eclipse.epf.uma.util.AssociationHelper;
 import org.eclipse.jface.viewers.ITreeContentProvider;

 /**
  * The item provider adapter for a custom category.
  *
  * @author Phong Nguyen Le
  * @author Kelvin Low
  * @since 1.0
  */
 public class CustomCategoryItemProvider extends
 		org.eclipse.epf.uma.provider.CustomCategoryItemProvider implements
 		IDefaultNameSetter, ILibraryItemProvider {

 	/**
 	 * Creates a new instance.
 	 */
 	public CustomCategoryItemProvider(AdapterFactory adapterFactory) {
 		super(adapterFactory);
 	}

 	public void setParent(Object parent) {
 		// this.parent = parent;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.emf.edit.provider.ItemProviderAdapter#getParent(java.lang.Object)
 	 */
 	public Object getParent(Object object) {

 		// CustomCategory category = (CustomCategory) object;
 		// if(category.eContainer() instanceof CustomCategory) {
 		// return super.getParent(object);
 		// }
 		//
 		// if(parent != null) {
 		// return parent;
 		// }
 		//
 		// if(object instanceof EObject) {
 		// MethodPlugin plugin = UmaUtil.getMethodPlugin((EObject) object);
 		// //if(plugin == null) return null;
 		//
 		// if(plugin != null) {
 		// String[] path = {
 		// LibraryEditPlugin.INSTANCE.getString("_UI_Content_group")
 		// ,LibraryEditPlugin.INSTANCE.getString("_UI_Custom_Categories_group")
 		// };
 		// return TngUtil.getAdapter(plugin, path);
 		// }
 		//
 		// }

 		if (TngUtil.isRootCustomCategory((CustomCategory) object)) {
 			return null;
 		}
 		return super.getParent(object);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.emf.edit.provider.ItemProviderAdapter#collectNewChildDescriptors(java.util.Collection,
 	 *      java.lang.Object)
 	 */
 	protected void collectNewChildDescriptors(Collection newChildDescriptors,
 			Object object) {
 		newChildDescriptors.add(createChildParameter(UmaPackage.eINSTANCE
 				.getCustomCategory_CategorizedElements(), UmaFactory.eINSTANCE
 				.createCustomCategory()));
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.emf.edit.provider.ItemProviderAdapter#getChildrenFeatures(java.lang.Object)
 	 */
 	public Collection getChildrenFeatures(Object object) {
 		if (childrenFeatures == null) {
 			childrenFeatures = new ArrayList();
 			// childrenFeatures.add(UmaPackage.eINSTANCE.getCustomCategory_SubCategories());
 			childrenFeatures.add(UmaPackage.eINSTANCE
 					.getCustomCategory_CategorizedElements());
 			// childrenFeatures.add(UmaPackage.eINSTANCE.getCustomCategory_ProcessElements());
 		}
 		return childrenFeatures;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.emf.edit.command.CreateChildCommand.Helper#getCreateChildImage(java.lang.Object,
 	 *      java.lang.Object, java.lang.Object, java.util.Collection)
 	 */
 	public Object getCreateChildImage(Object owner, Object feature,
 			Object child, Collection selection) {
 		if (feature instanceof EReference && child instanceof EObject) {
 			EReference reference = (EReference) feature;
 			EClass parentClass = reference.getEContainingClass();
 			EClass childClass = ((EObject) child).eClass();
 			String name = "full/ctool16/Create" + parentClass.getName() + "_" + reference.getName() + "_" + childClass.getName(); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
 			try {
 				return LibraryEditPlugin.INSTANCE.getImage(name);
 			} catch (MissingResourceException e) {
 				System.err.println(e.getMessage());
 				return null;
 			}
 		}

 		return EMFEditPlugin.INSTANCE.getImage("full/ctool16/CreateChild"); //$NON-NLS-1$
 	}

 	private static void handleRemoved(CustomCategory category) {
 		if (AssociationHelper.getCustomCategories(category).isEmpty()) {
 			// remove all subcategories
 			//
 			for (Iterator iter = category.getCategorizedElements().iterator(); iter
 					.hasNext();) {
 				Object element = iter.next();
 				if (element instanceof CustomCategory) {
 					iter.remove();
 				}
 			}

 			EcoreUtil.remove(category);
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.emf.common.notify.Adapter#notifyChanged(org.eclipse.emf.common.notify.Notification)
 	 */
 	public void notifyChanged(Notification notification) {
 		setDefaultName(notification);

 		updateChildren(notification);

 		ContentPackage pkg;
 		// boolean refreshCustomCategoryRoot = false;
 		switch (notification.getFeatureID(CustomCategory.class)) {
 		case UmaPackage.METHOD_ELEMENT__NAME:
 			TngUtil.refreshContributors(this, notification, false, true);
 			//for epf defect:174043
 			if(!TngUtil.isRootCustomCategory((CustomCategory)notification.getNotifier())){
 				MethodPlugin plugin = MethodElementUtil.getMethodModel(notification.getNotifier());
 				if(plugin !=null){
 					CustomCategory root = TngUtil.getRootCustomCategory(plugin);
 					fireNotifyChanged(new ViewerNotification(notification, root, true, false));
 				}
 			}
 			break;
 		// case UmaPackage.CUSTOM_CATEGORY__SUB_CATEGORIES:
 		case UmaPackage.CUSTOM_CATEGORY__CATEGORIZED_ELEMENTS:
 			pkg = (ContentPackage) ((EObject) notification.getNotifier())
 					.eContainer();
 			if ((pkg != null)
 					&& (ModelStructure.HIDDEN_PACKAGE_NAME
 							.equals(pkg.getName()))) {
 				// notifier is the root custom category
 				//
 				pkg = (ContentPackage) pkg.eContainer();
 			}
 			Object obj;
 			CustomCategory category;
 			switch (notification.getEventType()) {
 			case Notification.ADD:
 				obj = notification.getNewValue();
 				if (obj instanceof CustomCategory) {
 					category = (CustomCategory) obj;
 					if (category.eContainer() == null) {
 						pkg.getContentElements().add(category);
 					} else {
 						// refreshCustomCategoryRoot = true;
 					}
 				}
 				break;
 			case Notification.ADD_MANY:
 				for (Iterator iter = ((Collection) notification.getNewValue())
 						.iterator(); iter.hasNext();) {
 					obj = iter.next();
 					if (obj instanceof CustomCategory) {
 						category = (CustomCategory) obj;
 						if (category.eContainer() == null) {
 							pkg.getContentElements().add(category);
 						} else {
 							// refreshCustomCategoryRoot = true;
 						}
 					}
 				}
 				break;

 				// removing subcategories is handled by the remove command
 				//
 //			case Notification.REMOVE:
 //				obj = notification.getOldValue();
 //				if (obj instanceof CustomCategory) {
 //					handleRemoved((CustomCategory) obj);
 //				}
 //				break;
 //			case Notification.REMOVE_MANY:
 //				for (Iterator iter = ((Collection) notification.getOldValue())
 //						.iterator(); iter.hasNext();) {
 //					obj = iter.next();
 //					if (obj instanceof CustomCategory) {
 //						handleRemoved((CustomCategory) obj);
 //					}
 //				}
 //				break;
 			}

 			fireNotifyChanged(new ViewerNotification(notification, notification
 					.getNotifier(), true, false));

 			// // refresh wrappers
 			// //
 			// if(wrappers != null) {
 			// for (Iterator iter = new ArrayList(wrappers).iterator();
 			// iter.hasNext();) {
 			// fireNotifyChanged(new ViewerNotification(notification,
 			// iter.next(), true, false));
 			// }
 			// }
 			//
 			// if(refreshCustomCategoryRoot) {
 			// // sub category has been added or removed from the custom
 			// category
 			// // need to refresh the folder for all custom categories
 			// //
 			// MethodPlugin plugin = UmaUtil.getMethodPlugin((EObject) target);
 			//
 			// if(plugin != null) {
 			// String[] path = {
 			// LibraryEditPlugin.INSTANCE.getString("_UI_Content_group")
 			// ,LibraryEditPlugin.INSTANCE.getString("_UI_Custom_Categories_group")
 			// };
 			// fireNotifyChanged(new ViewerNotification(notification,
 			// TngUtil.getAdapter(plugin, path), true, false));
 			// }
 			// }

 			return;
 		}
 		super.notifyChanged(notification);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.emf.edit.provider.ItemProviderAdapter#isWrappingNeeded(java.lang.Object)
 	 */
 	protected boolean isWrappingNeeded(Object object) {
 		return true;
 	}

 	protected Object createWrapper(EObject object, EStructuralFeature feature,
 			Object value, int index) {
 		if (!isWrappingNeeded(object))
 			return value;
 		return TngUtil.createWrapper(adapterFactory, object, feature, value,
 				index);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.emf.edit.provider.ItemProviderAdapter#getText(java.lang.Object)
 	 */
 	public String getText(Object object) {
 		return TngUtil.getLabel((VariabilityElement) object,
 				getString("_UI_CustomCategory_type"), true); //$NON-NLS-1$
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.emf.edit.provider.ItemProviderAdapter#hasChildren(java.lang.Object)
 	 */
 	public boolean hasChildren(Object object) {
 		CustomCategory category = (CustomCategory) object;
 		return !category.getCategorizedElements().isEmpty()
 		// || !category.getSubCategories().isEmpty()
 		;
 	}

 	public void setDefaultName(Notification msg) {
 		IDefaultNameSetter defaultNameSetter = this;
 		if (defaultNameSetter.getInterestedFeatureOwnerClass() != null) {
 			int featureId = msg.getFeatureID(defaultNameSetter
 					.getInterestedFeatureOwnerClass());
 			if (featureId == defaultNameSetter.getInterestedFeatureID()) {
 				switch (msg.getEventType()) {
 				case Notification.ADD:
 					setDefaultName(msg.getNewValue(), msg.getNotifier());
 					break;
 				case Notification.ADD_MANY:
 					for (Iterator iter = ((Collection) msg.getNewValue())
 							.iterator(); iter.hasNext();) {
 						setDefaultName(iter.next(), msg.getNotifier());
 					}
 					break;
 				}
 			}
 		}
 	}

 	private void setDefaultName(Object obj, Object parent) {
 		String baseName = null;
 		if (obj instanceof CustomCategory) {
 			baseName = LibraryEditConstants.NEW_CUSTOM_CATEGORY;
 		}
 		if (baseName != null) {
 			TngUtil.setDefaultName(((CustomCategory) parent)
 					.getCategorizedElements(), (MethodElement) obj, baseName);
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see com.ibm.library.edit.IDefaultNameSetter#getInterestedFeatureID()
 	 */
 	public int getInterestedFeatureID() {
 		return UmaPackage.CUSTOM_CATEGORY__CATEGORIZED_ELEMENTS;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see com.ibm.library.edit.IDefaultNameSetter#getInterestedFeatureOwnerClass()
 	 */
 	public Class getInterestedFeatureOwnerClass() {
 		return CustomCategory.class;
 	}

 	protected Command createInitializeCopyCommand(EditingDomain domain,
 			EObject owner, Helper helper) {
 		return new MethodElementInitializeCopyCommand(domain, owner, helper);
 	}

 	protected Command createCreateCopyCommand(EditingDomain domain,
 			EObject owner, Helper helper) {
 		return new MethodElementCreateCopyCommand(domain, owner, helper);
 	}

 	protected Command createAddCommand(EditingDomain domain, EObject owner,
 			EStructuralFeature feature, Collection collection, int index) {
 		Collection selection = new ArrayList();
 		for (Iterator iter = collection.iterator(); iter.hasNext();) {
 			Object element = iter.next();
 			if (element instanceof CustomCategory) {
 				// check custom category for circular dependency
 				//
 				if (!(owner instanceof DescribableElement && TngUtil
 						.isAncessorOf((CustomCategory) element,
 								(DescribableElement) owner))) {
 					selection.add(element);
 				}
 			}
 		}
 		if (selection.isEmpty()) {
 			return UnexecutableCommand.INSTANCE;
 		}

 		return new MethodElementAddCommand((AddCommand) super.createAddCommand(
 				domain, owner, feature, collection, index));
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.emf.edit.provider.ItemProviderAdapter#createRemoveCommand(org.eclipse.emf.edit.domain.EditingDomain,
 	 *      org.eclipse.emf.ecore.EObject,
 	 *      org.eclipse.emf.ecore.EStructuralFeature, java.util.Collection)
 	 */
 	protected Command createRemoveCommand(EditingDomain domain, EObject owner,
 			EStructuralFeature feature, Collection collection) {
 		return super.createRemoveCommand(domain, owner, feature, collection);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see com.ibm.library.edit.IConfigurable#setLabel(java.lang.String)
 	 */
 	public void setLabel(String label) {
 	}

 	public Object getImage(Object object) {
 		if (TngUtil.isRootCustomCategory((CustomCategory) object))
 			return LibraryEditPlugin.INSTANCE
 					.getImage("full/obj16/CustomCategories"); //$NON-NLS-1$
 		else {
 			if (object instanceof DescribableElement) {
 				if (((DescribableElement) object).getNodeicon() != null) {
 					URI imgUri = TngUtil.getFullPathURI(
 							(DescribableElement) object,
 							((DescribableElement) object).getNodeicon());
 					Object image = LibraryEditPlugin.INSTANCE
 							.getSharedImage(imgUri);
 					if (image != null)
 						return image;
 				}
 			}
 			return super.getImage(object);
 		}
 	}

 	public void setDefaultName(Object obj) {
 		// do nothing, already handled by setDefaultName(Notification)
 	}

 	public List getNotifyChangedListeners() {
 		if(changeNotifier instanceof Collection) {
 			return new ArrayList((Collection) changeNotifier);
 		}
 		return Collections.EMPTY_LIST;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.emf.edit.provider.ItemProviderAdapter#addListener(org.eclipse.emf.edit.provider.INotifyChangedListener)
 	 */
 	public void addListener(INotifyChangedListener listener) {
 		// TODO Auto-generated method stub
 		super.addListener(listener);
 	}

 	public Collection getChildren(Object object) {

 		Collection col = super.getChildren(object);
 		if(TngUtil.isRootCustomCategory((CustomCategory)object)){
 			List sortList = new ArrayList();
 			sortList.addAll(col);
 			Collections.sort(sortList, PresentationContext.INSTANCE.getComparator());
 			return sortList;
 		}
 		return col;
 	}

 }
	//------------------------------------------------------------------------------
	// Copyright (c) 2005, 2006 IBM Corporation and others.
	// 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:
	// IBM Corporation - initial implementation
	//------------------------------------------------------------------------------
	package org.eclipse.epf.library.edit.category;

	import java.net.URI;
	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.Collections;
	import java.util.Iterator;
	import java.util.List;
	import java.util.MissingResourceException;

	import org.eclipse.emf.common.command.Command;
	import org.eclipse.emf.common.command.UnexecutableCommand;
	import org.eclipse.emf.common.notify.AdapterFactory;
	import org.eclipse.emf.common.notify.Notification;
	import org.eclipse.emf.ecore.EClass;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.emf.ecore.EReference;
	import org.eclipse.emf.ecore.EStructuralFeature;
	import org.eclipse.emf.ecore.util.EcoreUtil;
	import org.eclipse.emf.edit.EMFEditPlugin;
	import org.eclipse.emf.edit.command.AddCommand;
	import org.eclipse.emf.edit.command.CopyCommand.Helper;
	import org.eclipse.emf.edit.domain.EditingDomain;
	import org.eclipse.emf.edit.provider.INotifyChangedListener;
	import org.eclipse.emf.edit.provider.ITreeItemContentProvider;
	import org.eclipse.emf.edit.provider.ViewerNotification;
	import org.eclipse.epf.library.edit.IDefaultNameSetter;
	import org.eclipse.epf.library.edit.ILibraryItemProvider;
	import org.eclipse.epf.library.edit.LibraryEditPlugin;
	import org.eclipse.epf.library.edit.PresentationContext;
	import org.eclipse.epf.library.edit.command.MethodElementAddCommand;
	import org.eclipse.epf.library.edit.internal.TngAdapterFactoryImpl;
	import org.eclipse.epf.library.edit.util.LibraryEditConstants;
	import org.eclipse.epf.library.edit.util.MethodElementUtil;
	import org.eclipse.epf.library.edit.util.ModelStructure;
	import org.eclipse.epf.library.edit.util.TngUtil;
	import org.eclipse.epf.uma.ContentPackage;
	import org.eclipse.epf.uma.CustomCategory;
	import org.eclipse.epf.uma.DescribableElement;
	import org.eclipse.epf.uma.MethodElement;
	import org.eclipse.epf.uma.MethodPlugin;
	import org.eclipse.epf.uma.UmaFactory;
	import org.eclipse.epf.uma.UmaPackage;
	import org.eclipse.epf.uma.VariabilityElement;
	import org.eclipse.epf.uma.edit.command.MethodElementCreateCopyCommand;
	import org.eclipse.epf.uma.edit.command.MethodElementInitializeCopyCommand;
	import org.eclipse.epf.uma.util.AssociationHelper;
	import org.eclipse.jface.viewers.ITreeContentProvider;

	/**
	* The item provider adapter for a custom category.
	*
	* @author Phong Nguyen Le
	* @author Kelvin Low
	* @since 1.0
	*/
	public class CustomCategoryItemProvider extends
	org.eclipse.epf.uma.provider.CustomCategoryItemProvider implements
	IDefaultNameSetter, ILibraryItemProvider {

	/**
	* Creates a new instance.
	*/
	public CustomCategoryItemProvider(AdapterFactory adapterFactory) {
	super(adapterFactory);
	}

	public void setParent(Object parent) {
	// this.parent = parent;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.emf.edit.provider.ItemProviderAdapter#getParent(java.lang.Object)
	*/
	public Object getParent(Object object) {

	// CustomCategory category = (CustomCategory) object;
	// if(category.eContainer() instanceof CustomCategory) {
	// return super.getParent(object);
	// }
	//
	// if(parent != null) {
	// return parent;
	// }
	//
	// if(object instanceof EObject) {
	// MethodPlugin plugin = UmaUtil.getMethodPlugin((EObject) object);
	// //if(plugin == null) return null;
	//
	// if(plugin != null) {
	// String[] path = {
	// LibraryEditPlugin.INSTANCE.getString("_UI_Content_group")
	// ,LibraryEditPlugin.INSTANCE.getString("_UI_Custom_Categories_group")
	// };
	// return TngUtil.getAdapter(plugin, path);
	// }
	//
	// }

	if (TngUtil.isRootCustomCategory((CustomCategory) object)) {
	return null;
	}
	return super.getParent(object);
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.emf.edit.provider.ItemProviderAdapter#collectNewChildDescriptors(java.util.Collection,
	* java.lang.Object)
	*/
	protected void collectNewChildDescriptors(Collection newChildDescriptors,
	Object object) {
	newChildDescriptors.add(createChildParameter(UmaPackage.eINSTANCE
	.getCustomCategory_CategorizedElements(), UmaFactory.eINSTANCE
	.createCustomCategory()));
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.emf.edit.provider.ItemProviderAdapter#getChildrenFeatures(java.lang.Object)
	*/
	public Collection getChildrenFeatures(Object object) {
	if (childrenFeatures == null) {
	childrenFeatures = new ArrayList();
	// childrenFeatures.add(UmaPackage.eINSTANCE.getCustomCategory_SubCategories());
	childrenFeatures.add(UmaPackage.eINSTANCE
	.getCustomCategory_CategorizedElements());
	// childrenFeatures.add(UmaPackage.eINSTANCE.getCustomCategory_ProcessElements());
	}
	return childrenFeatures;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.emf.edit.command.CreateChildCommand.Helper#getCreateChildImage(java.lang.Object,
	* java.lang.Object, java.lang.Object, java.util.Collection)
	*/
	public Object getCreateChildImage(Object owner, Object feature,
	Object child, Collection selection) {
	if (feature instanceof EReference && child instanceof EObject) {
	EReference reference = (EReference) feature;
	EClass parentClass = reference.getEContainingClass();
	EClass childClass = ((EObject) child).eClass();
	String name = "full/ctool16/Create" + parentClass.getName() + "_" + reference.getName() + "_" + childClass.getName(); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
	try {
	return LibraryEditPlugin.INSTANCE.getImage(name);
	} catch (MissingResourceException e) {
	System.err.println(e.getMessage());
	return null;
	}
	}

	return EMFEditPlugin.INSTANCE.getImage("full/ctool16/CreateChild"); //$NON-NLS-1$
	}

	private static void handleRemoved(CustomCategory category) {
	if (AssociationHelper.getCustomCategories(category).isEmpty()) {
	// remove all subcategories
	//
	for (Iterator iter = category.getCategorizedElements().iterator(); iter
	.hasNext();) {
	Object element = iter.next();
	if (element instanceof CustomCategory) {
	iter.remove();
	}
	}

	EcoreUtil.remove(category);
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.emf.common.notify.Adapter#notifyChanged(org.eclipse.emf.common.notify.Notification)
	*/
	public void notifyChanged(Notification notification) {
	setDefaultName(notification);

	updateChildren(notification);

	ContentPackage pkg;
	// boolean refreshCustomCategoryRoot = false;
	switch (notification.getFeatureID(CustomCategory.class)) {
	case UmaPackage.METHOD_ELEMENT__NAME:
	TngUtil.refreshContributors(this, notification, false, true);
	//for epf defect:174043
	if(!TngUtil.isRootCustomCategory((CustomCategory)notification.getNotifier())){
	MethodPlugin plugin = MethodElementUtil.getMethodModel(notification.getNotifier());
	if(plugin !=null){
	CustomCategory root = TngUtil.getRootCustomCategory(plugin);
	fireNotifyChanged(new ViewerNotification(notification, root, true, false));
	}
	}
	break;
	// case UmaPackage.CUSTOM_CATEGORY__SUB_CATEGORIES:
	case UmaPackage.CUSTOM_CATEGORY__CATEGORIZED_ELEMENTS:
	pkg = (ContentPackage) ((EObject) notification.getNotifier())
	.eContainer();
	if ((pkg != null)
	&& (ModelStructure.HIDDEN_PACKAGE_NAME
	.equals(pkg.getName()))) {
	// notifier is the root custom category
	//
	pkg = (ContentPackage) pkg.eContainer();
	}
	Object obj;
	CustomCategory category;
	switch (notification.getEventType()) {
	case Notification.ADD:
	obj = notification.getNewValue();
	if (obj instanceof CustomCategory) {
	category = (CustomCategory) obj;
	if (category.eContainer() == null) {
	pkg.getContentElements().add(category);
	} else {
	// refreshCustomCategoryRoot = true;
	}
	}
	break;
	case Notification.ADD_MANY:
	for (Iterator iter = ((Collection) notification.getNewValue())
	.iterator(); iter.hasNext();) {
	obj = iter.next();
	if (obj instanceof CustomCategory) {
	category = (CustomCategory) obj;
	if (category.eContainer() == null) {
	pkg.getContentElements().add(category);
	} else {
	// refreshCustomCategoryRoot = true;
	}
	}
	}
	break;

	// removing subcategories is handled by the remove command
	//
	// case Notification.REMOVE:
	// obj = notification.getOldValue();
	// if (obj instanceof CustomCategory) {
	// handleRemoved((CustomCategory) obj);
	// }
	// break;
	// case Notification.REMOVE_MANY:
	// for (Iterator iter = ((Collection) notification.getOldValue())
	// .iterator(); iter.hasNext();) {
	// obj = iter.next();
	// if (obj instanceof CustomCategory) {
	// handleRemoved((CustomCategory) obj);
	// }
	// }
	// break;
	}

	fireNotifyChanged(new ViewerNotification(notification, notification
	.getNotifier(), true, false));

	// // refresh wrappers
	// //
	// if(wrappers != null) {
	// for (Iterator iter = new ArrayList(wrappers).iterator();
	// iter.hasNext();) {
	// fireNotifyChanged(new ViewerNotification(notification,
	// iter.next(), true, false));
	// }
	// }
	//
	// if(refreshCustomCategoryRoot) {
	// // sub category has been added or removed from the custom
	// category
	// // need to refresh the folder for all custom categories
	// //
	// MethodPlugin plugin = UmaUtil.getMethodPlugin((EObject) target);
	//
	// if(plugin != null) {
	// String[] path = {
	// LibraryEditPlugin.INSTANCE.getString("_UI_Content_group")
	// ,LibraryEditPlugin.INSTANCE.getString("_UI_Custom_Categories_group")
	// };
	// fireNotifyChanged(new ViewerNotification(notification,
	// TngUtil.getAdapter(plugin, path), true, false));
	// }
	// }

	return;
	}
	super.notifyChanged(notification);
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.emf.edit.provider.ItemProviderAdapter#isWrappingNeeded(java.lang.Object)
	*/
	protected boolean isWrappingNeeded(Object object) {
	return true;
	}

	protected Object createWrapper(EObject object, EStructuralFeature feature,
	Object value, int index) {
	if (!isWrappingNeeded(object))
	return value;
	return TngUtil.createWrapper(adapterFactory, object, feature, value,
	index);
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.emf.edit.provider.ItemProviderAdapter#getText(java.lang.Object)
	*/
	public String getText(Object object) {
	return TngUtil.getLabel((VariabilityElement) object,
	getString("_UI_CustomCategory_type"), true); //$NON-NLS-1$
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.emf.edit.provider.ItemProviderAdapter#hasChildren(java.lang.Object)
	*/
	public boolean hasChildren(Object object) {
	CustomCategory category = (CustomCategory) object;
	return !category.getCategorizedElements().isEmpty()
	// \|\| !category.getSubCategories().isEmpty()
	;
	}

	public void setDefaultName(Notification msg) {
	IDefaultNameSetter defaultNameSetter = this;
	if (defaultNameSetter.getInterestedFeatureOwnerClass() != null) {
	int featureId = msg.getFeatureID(defaultNameSetter
	.getInterestedFeatureOwnerClass());
	if (featureId == defaultNameSetter.getInterestedFeatureID()) {
	switch (msg.getEventType()) {
	case Notification.ADD:
	setDefaultName(msg.getNewValue(), msg.getNotifier());
	break;
	case Notification.ADD_MANY:
	for (Iterator iter = ((Collection) msg.getNewValue())
	.iterator(); iter.hasNext();) {
	setDefaultName(iter.next(), msg.getNotifier());
	}
	break;
	}
	}
	}
	}

	private void setDefaultName(Object obj, Object parent) {
	String baseName = null;
	if (obj instanceof CustomCategory) {
	baseName = LibraryEditConstants.NEW_CUSTOM_CATEGORY;
	}
	if (baseName != null) {
	TngUtil.setDefaultName(((CustomCategory) parent)
	.getCategorizedElements(), (MethodElement) obj, baseName);
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see com.ibm.library.edit.IDefaultNameSetter#getInterestedFeatureID()
	*/
	public int getInterestedFeatureID() {
	return UmaPackage.CUSTOM_CATEGORY__CATEGORIZED_ELEMENTS;
	}

	/*
	* (non-Javadoc)
	*
	* @see com.ibm.library.edit.IDefaultNameSetter#getInterestedFeatureOwnerClass()
	*/
	public Class getInterestedFeatureOwnerClass() {
	return CustomCategory.class;
	}

	protected Command createInitializeCopyCommand(EditingDomain domain,
	EObject owner, Helper helper) {
	return new MethodElementInitializeCopyCommand(domain, owner, helper);
	}

	protected Command createCreateCopyCommand(EditingDomain domain,
	EObject owner, Helper helper) {
	return new MethodElementCreateCopyCommand(domain, owner, helper);
	}

	protected Command createAddCommand(EditingDomain domain, EObject owner,
	EStructuralFeature feature, Collection collection, int index) {
	Collection selection = new ArrayList();
	for (Iterator iter = collection.iterator(); iter.hasNext();) {
	Object element = iter.next();
	if (element instanceof CustomCategory) {
	// check custom category for circular dependency
	//
	if (!(owner instanceof DescribableElement && TngUtil
	.isAncessorOf((CustomCategory) element,
	(DescribableElement) owner))) {
	selection.add(element);
	}
	}
	}
	if (selection.isEmpty()) {
	return UnexecutableCommand.INSTANCE;
	}

	return new MethodElementAddCommand((AddCommand) super.createAddCommand(
	domain, owner, feature, collection, index));
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.emf.edit.provider.ItemProviderAdapter#createRemoveCommand(org.eclipse.emf.edit.domain.EditingDomain,
	* org.eclipse.emf.ecore.EObject,
	* org.eclipse.emf.ecore.EStructuralFeature, java.util.Collection)
	*/
	protected Command createRemoveCommand(EditingDomain domain, EObject owner,
	EStructuralFeature feature, Collection collection) {
	return super.createRemoveCommand(domain, owner, feature, collection);
	}

	/*
	* (non-Javadoc)
	*
	* @see com.ibm.library.edit.IConfigurable#setLabel(java.lang.String)
	*/
	public void setLabel(String label) {
	}

	public Object getImage(Object object) {
	if (TngUtil.isRootCustomCategory((CustomCategory) object))
	return LibraryEditPlugin.INSTANCE
	.getImage("full/obj16/CustomCategories"); //$NON-NLS-1$
	else {
	if (object instanceof DescribableElement) {
	if (((DescribableElement) object).getNodeicon() != null) {
	URI imgUri = TngUtil.getFullPathURI(
	(DescribableElement) object,
	((DescribableElement) object).getNodeicon());
	Object image = LibraryEditPlugin.INSTANCE
	.getSharedImage(imgUri);
	if (image != null)
	return image;
	}
	}
	return super.getImage(object);
	}
	}

	public void setDefaultName(Object obj) {
	// do nothing, already handled by setDefaultName(Notification)
	}

	public List getNotifyChangedListeners() {
	if(changeNotifier instanceof Collection) {
	return new ArrayList((Collection) changeNotifier);
	}
	return Collections.EMPTY_LIST;
	}

	/* (non-Javadoc)
	* @see org.eclipse.emf.edit.provider.ItemProviderAdapter#addListener(org.eclipse.emf.edit.provider.INotifyChangedListener)
	*/
	public void addListener(INotifyChangedListener listener) {
	// TODO Auto-generated method stub
	super.addListener(listener);
	}

	public Collection getChildren(Object object) {

	Collection col = super.getChildren(object);
	if(TngUtil.isRootCustomCategory((CustomCategory)object)){
	List sortList = new ArrayList();
	sortList.addAll(col);
	Collections.sort(sortList, PresentationContext.INSTANCE.getComparator());
	return sortList;
	}
	return col;
	}

	}