org.argeo.cms.ui/src/org/argeo/cms/ui/jcr/PropertiesContentProvider.java

   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.utils.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 }