server/plugins/org.argeo.jcr.ui.explorer/src/main/java/org/argeo/jcr/ui/explorer/browser/PropertiesContentProvider.java

   1 /*
   2  * Copyright (C) 2007-2012 Mathieu Baudier
   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.jcr.ui.explorer.browser;
  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.ArgeoException;
  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 public class PropertiesContentProvider implements IStructuredContentProvider {
  32         private JcrItemsComparator itemComparator = new JcrItemsComparator();
  33
  34         public void dispose() {
  35         }
  36
  37         public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  38         }
  39
  40         public Object[] getElements(Object inputElement) {
  41                 try {
  42                         if (inputElement instanceof Node) {
  43                                 Set<Property> props = new TreeSet<Property>(itemComparator);
  44                                 PropertyIterator pit = ((Node) inputElement).getProperties();
  45                                 while (pit.hasNext())
  46                                         props.add(pit.nextProperty());
  47                                 return props.toArray();
  48                         }
  49                         return new Object[] {};
  50                 } catch (RepositoryException e) {
  51                         throw new ArgeoException("Cannot get element for " + inputElement,
  52                                         e);
  53                 }
  54         }
  55
  56 }