server/plugins/org.argeo.jcr.ui.explorer/src/main/java/org/argeo/jcr/ui/explorer/commands/AddFolderNode.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.commands;
  17
  18 import javax.jcr.Node;
  19 import javax.jcr.RepositoryException;
  20 import javax.jcr.nodetype.NodeType;
  21
  22 import org.argeo.eclipse.ui.ErrorFeedback;
  23 import org.argeo.eclipse.ui.TreeParent;
  24 import org.argeo.eclipse.ui.dialogs.SingleValue;
  25 import org.argeo.eclipse.ui.jcr.JcrUiPlugin;
  26 import org.argeo.jcr.ui.explorer.JcrExplorerPlugin;
  27 import org.argeo.jcr.ui.explorer.model.SingleJcrNode;
  28 import org.argeo.jcr.ui.explorer.model.WorkspaceNode;
  29 import org.argeo.jcr.ui.explorer.views.GenericJcrBrowser;
  30 import org.eclipse.core.commands.AbstractHandler;
  31 import org.eclipse.core.commands.ExecutionEvent;
  32 import org.eclipse.core.commands.ExecutionException;
  33 import org.eclipse.jface.viewers.ISelection;
  34 import org.eclipse.jface.viewers.IStructuredSelection;
  35 import org.eclipse.ui.handlers.HandlerUtil;
  36
  37 /**
  38  * Adds a node of type nt:folder, only on {@link SingleJcrNode} and
  39  * {@link WorkspaceNode} TreeObject types.
  40  *
  41  *
  42  * This handler assumes that a selection provider is available and picks only
  43  * first selected item. It is UI's job to enable the command only when the
  44  * selection contains one and only one element. Thus no parameter is passed
  45  * through the command.
  46  *
  47  * This handler is still 'hard linked' to a GenericJcrBrowser view to enable
  48  * correct tree refresh when a node is added. This must be corrected in future
  49  * versions.
  50  */
  51 public class AddFolderNode extends AbstractHandler {
  52
  53         public final static String ID = JcrExplorerPlugin.ID + ".addFolderNode";
  54
  55         // public final static String DEFAULT_LABEL = JcrExplorerPlugin
  56         // .getMessage("addFolderNodeCmdLbl");
  57         // public final static String DEFAULT_ICON_REL_PATH = "icons/addRepo.gif";
  58
  59         public Object execute(ExecutionEvent event) throws ExecutionException {
  60
  61                 ISelection selection = HandlerUtil.getActiveWorkbenchWindow(event)
  62                                 .getActivePage().getSelection();
  63
  64                 GenericJcrBrowser view = (GenericJcrBrowser) HandlerUtil
  65                                 .getActiveWorkbenchWindow(event).getActivePage()
  66                                 .findView(HandlerUtil.getActivePartId(event));
  67
  68                 if (selection != null && !selection.isEmpty()
  69                                 && selection instanceof IStructuredSelection) {
  70                         Object obj = ((IStructuredSelection) selection).getFirstElement();
  71                         TreeParent treeParentNode = null;
  72                         Node jcrParentNode = null;
  73
  74                         if (obj instanceof SingleJcrNode) {
  75                                 treeParentNode = (TreeParent) obj;
  76                                 jcrParentNode = ((SingleJcrNode) treeParentNode).getNode();
  77                         } else if (obj instanceof WorkspaceNode) {
  78                                 treeParentNode = (TreeParent) obj;
  79                                 jcrParentNode = ((WorkspaceNode) treeParentNode).getRootNode();
  80                         } else
  81                                 return null;
  82
  83                         String folderName = SingleValue.ask("Folder name",
  84                                         "Enter folder name");
  85                         if (folderName != null) {
  86                                 try {
  87                                         jcrParentNode.addNode(folderName, NodeType.NT_FOLDER);
  88                                         jcrParentNode.getSession().save();
  89                                         view.nodeAdded(treeParentNode);
  90                                 } catch (RepositoryException e) {
  91                                         ErrorFeedback.show("Cannot create folder " + folderName
  92                                                         + " under " + treeParentNode, e);
  93                                 }
  94                         }
  95                 } else {
  96                         ErrorFeedback.show(JcrUiPlugin
  97                                         .getMessage("errorUnvalidNtFolderNodeType"));
  98                 }
  99                 return null;
 100         }
 101 }