DeleteNode.java

   1 package org.argeo.eclipse.ui.jcr.commands;
   2
   3 import java.util.Iterator;
   4
   5 import javax.jcr.Node;
   6
   7 import org.argeo.eclipse.ui.dialogs.Error;
   8 import org.argeo.eclipse.ui.jcr.views.GenericJcrBrowser;
   9 import org.eclipse.core.commands.AbstractHandler;
  10 import org.eclipse.core.commands.ExecutionEvent;
  11 import org.eclipse.core.commands.ExecutionException;
  12 import org.eclipse.jface.viewers.ISelection;
  13 import org.eclipse.jface.viewers.IStructuredSelection;
  14 import org.eclipse.ui.handlers.HandlerUtil;
  15
  16 /** Deletes the selected nodes */
  17 public class DeleteNode extends AbstractHandler {
  18
  19         public Object execute(ExecutionEvent event) throws ExecutionException {
  20                 ISelection selection = HandlerUtil.getActiveWorkbenchWindow(event)
  21                                 .getActivePage().getSelection();
  22                 GenericJcrBrowser view = (GenericJcrBrowser) HandlerUtil
  23                                 .getActiveWorkbenchWindow(event).getActivePage()
  24                                 .findView(HandlerUtil.getActivePartId(event));
  25                 if (selection != null && selection instanceof IStructuredSelection) {
  26                         Iterator<?> it = ((IStructuredSelection) selection).iterator();
  27
  28                         Object obj = null;
  29                         try {
  30                                 while (it.hasNext()) {
  31                                         obj = it.next();
  32                                         if (obj instanceof Node) {
  33                                                 Node node = (Node) obj;
  34                                                 Node parentNode = node.getParent();
  35                                                 node.remove();
  36                                                 view.nodeRemoved(parentNode);
  37                                                 node.getSession().save();
  38                                         }
  39                                 }
  40                         } catch (Exception e) {
  41                                 Error.show("Cannot delete node " + obj, e);
  42                         }
  43                 }
  44                 return null;
  45         }
  46
  47 }