| //------------------------------------------------------------------------------ |
| // 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.itemsfilter; |
| |
| import java.util.Collection; |
| import java.util.Iterator; |
| |
| import org.eclipse.emf.common.notify.AdapterFactory; |
| import org.eclipse.epf.library.edit.IConfigurable; |
| import org.eclipse.epf.library.edit.IFilter; |
| import org.eclipse.epf.uma.ContentPackage; |
| |
| /** |
| * The item provider adapter for a content package in the method element |
| * selection dialogs. |
| * |
| * @author Phong Nguyen Le |
| * @author Shashidhar Kannoori |
| * @since 1.0 |
| */ |
| public class ContentPackageItemProvider extends |
| org.eclipse.epf.uma.provider.ContentPackageItemProvider implements |
| IConfigurable { |
| |
| private IFilter filter; |
| |
| /** |
| * Creates a new instance. |
| */ |
| public ContentPackageItemProvider(AdapterFactory adapterFactory) { |
| super(adapterFactory); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.emf.edit.provider.ItemProviderAdapter#getChildren(java.lang.Object) |
| */ |
| public Collection getChildren(Object object) { |
| Collection children = getChildrenIncludingEmptyOnes(object); |
| |
| // remove the empty packages from the children list |
| // |
| for (Iterator iter = children.iterator(); iter.hasNext();) { |
| if (isEmptyPackage(iter.next())) { |
| iter.remove(); |
| } |
| } |
| |
| return children; |
| } |
| |
| private Collection getChildrenIncludingEmptyOnes(Object object) { |
| Collection children = super.getChildren(object); |
| if (filter != null) { |
| for (Iterator iter = children.iterator(); iter.hasNext();) { |
| if (!filter.accept(iter.next())) { |
| iter.remove(); |
| } |
| |
| } |
| } |
| return children; |
| } |
| |
| /** |
| * @param object |
| * @return |
| */ |
| private boolean isEmptyPackage(Object object) { |
| if (!(object instanceof ContentPackage)) |
| return false; |
| Collection children = this.getChildrenIncludingEmptyOnes(object); |
| for (Iterator iter = children.iterator(); iter.hasNext();) { |
| if (!isEmptyPackage(iter.next())) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.epf.library.edit.IConfigurable#setFilter(com.ibm.library.edit.IFilter) |
| */ |
| public void setFilter(IFilter filter) { |
| this.filter = filter; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.epf.library.edit.IConfigurable#setLabel(java.lang.String) |
| */ |
| public void setLabel(String label) { |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.epf.library.edit.IConfigurable#setParent(java.lang.Object) |
| */ |
| public void setParent(Object parent) { |
| } |
| |
| } |