Clarify SLC project structure.

[gpl/argeo-slc.git] / cms / org.argeo.slc.client.ui / src / org / argeo / slc / client / ui / commands / DeleteItems.java

diff --git a/cms/org.argeo.slc.client.ui/src/org/argeo/slc/client/ui/commands/DeleteItems.java b/cms/org.argeo.slc.client.ui/src/org/argeo/slc/client/ui/commands/DeleteItems.java
new file mode 100644 (file)
index 0000000..7401667
--- /dev/null
+++ b/cms/org.argeo.slc.client.ui/src/org/argeo/slc/client/ui/commands/DeleteItems.java
@@ -0,0 +1,119 @@
+package org.argeo.slc.client.ui.commands;
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+
+import javax.jcr.Node;
+import javax.jcr.RepositoryException;
+import javax.jcr.Session;
+
+import org.argeo.slc.SlcException;
+import org.argeo.slc.client.ui.ClientUiPlugin;
+import org.argeo.slc.client.ui.model.ResultFolder;
+import org.argeo.slc.client.ui.model.ResultParent;
+import org.argeo.slc.client.ui.model.ResultParentUtils;
+import org.argeo.slc.client.ui.model.SingleResultNode;
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.core.runtime.jobs.Job;
+import org.eclipse.jface.dialogs.MessageDialog;
+import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.ui.handlers.HandlerUtil;
+
+/** Deletes one or many results */
+public class DeleteItems extends AbstractHandler {
+       public final static String ID = ClientUiPlugin.ID + ".deleteItems";
+       public final static ImageDescriptor DEFAULT_IMG_DESCRIPTOR = ClientUiPlugin
+                       .getImageDescriptor("icons/removeAll.png");
+       public final static String DEFAULT_LABEL = "Delete selected item(s)";
+
+       public Object execute(final ExecutionEvent event) throws ExecutionException {
+               final ISelection selection = HandlerUtil
+                               .getActiveWorkbenchWindow(event).getActivePage().getSelection();
+
+               // confirmation
+               StringBuilder buf = new StringBuilder("");
+               Iterator<?> lst = ((IStructuredSelection) selection).iterator();
+               while (lst.hasNext()) {
+                       Object obj = lst.next();
+                       if (obj instanceof ResultParent) {
+                               ResultParent rp = ((ResultParent) obj);
+                               buf.append(rp.getName()).append(", ");
+                       }
+               }
+
+               String msg = "Nothing to delete";
+               // remove last separator
+               if (buf.lastIndexOf(", ") > -1) {
+                       msg = "Do you want to delete following objects (and their children): "
+                                       + buf.substring(0, buf.lastIndexOf(", ")) + "?";
+               }
+               Boolean ok = MessageDialog.openConfirm(
+                               HandlerUtil.getActiveShell(event), "Confirm deletion", msg);
+
+               if (!ok)
+                       return null;
+
+               Job job = new Job("Delete results") {
+                       @Override
+                       protected IStatus run(IProgressMonitor monitor) {
+                               if (selection != null
+                                               && selection instanceof IStructuredSelection) {
+                                       Map<String, Node> nodes = new HashMap<String, Node>();
+                                       Iterator<?> it = ((IStructuredSelection) selection)
+                                                       .iterator();
+                                       Object obj = null;
+                                       try {
+
+                                               while (it.hasNext()) {
+                                                       obj = it.next();
+                                                       if (obj instanceof ResultFolder) {
+                                                               Node node = ((ResultFolder) obj).getNode();
+                                                               nodes.put(node.getPath(), node);
+                                                       } else if (obj instanceof SingleResultNode) {
+                                                               Node node = ((SingleResultNode) obj).getNode();
+                                                               nodes.put(node.getPath(), node);
+                                                       }
+                                               }
+                                               if (!nodes.isEmpty()) {
+                                                       Session session = null;
+                                                       monitor.beginTask("Delete results", nodes.size());
+                                                       for (String path : nodes.keySet()) {
+                                                               if (session == null)
+                                                                       session = nodes.get(path).getSession();
+
+                                                               // check if the item has not already been
+                                                               // deleted while deleting one of its ancestor
+                                                               if (session.itemExists(path)) {
+                                                                       Node parent = nodes.get(path).getParent();
+                                                                       nodes.get(path).remove();
+                                                                       ResultParentUtils.updatePassedStatus(
+                                                                                       parent, true);
+                                                               }
+                                                               monitor.worked(1);
+                                                       }
+                                                       session.save();
+                                               }
+
+                                       } catch (RepositoryException e) {
+                                               throw new SlcException(
+                                                               "Unexpected error while deleteting node(s)", e);
+                                       }
+                                       monitor.done();
+                               }
+                               return Status.OK_STATUS;
+                       }
+
+               };
+               job.setUser(true);
+               job.schedule();
+               return null;
+       }
+}