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1   /*
2    * Copyright (C) 2007-2012 Argeo GmbH
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *         http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.argeo.cms.ui.jcr;
17  
18  import java.util.Set;
19  import java.util.TreeSet;
20  
21  import javax.jcr.Node;
22  import javax.jcr.Property;
23  import javax.jcr.PropertyIterator;
24  import javax.jcr.RepositoryException;
25  
26  import org.argeo.eclipse.ui.EclipseUiException;
27  import org.argeo.eclipse.ui.jcr.util.JcrItemsComparator;
28  import org.eclipse.jface.viewers.IStructuredContentProvider;
29  import org.eclipse.jface.viewers.Viewer;
30  
31  /** Simple content provider that displays all properties of a given Node */
32  public class PropertiesContentProvider implements IStructuredContentProvider {
33  	private static final long serialVersionUID = 5227554668841613078L;
34  	private JcrItemsComparator itemComparator = new JcrItemsComparator();
35  
36  	public void dispose() {
37  	}
38  
39  	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
40  	}
41  
42  	public Object[] getElements(Object inputElement) {
43  		try {
44  			if (inputElement instanceof Node) {
45  				Set<Property> props = new TreeSet<Property>(itemComparator);
46  				PropertyIterator pit = ((Node) inputElement).getProperties();
47  				while (pit.hasNext())
48  					props.add(pit.nextProperty());
49  				return props.toArray();
50  			}
51  			return new Object[] {};
52  		} catch (RepositoryException e) {
53  			throw new EclipseUiException("Cannot get element for "
54  					+ inputElement, e);
55  		}
56  	}
57  }