Move Eclipse 3 components to legacy.

[lgpl/argeo-commons.git] / legacy / org.argeo.cms.ui.workbench / src / org / argeo / cms / ui / workbench / internal / jcr / commands / GetNodeSize.java

diff --git a/legacy/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/jcr/commands/GetNodeSize.java b/legacy/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/jcr/commands/GetNodeSize.java
new file mode 100644 (file)
index 0000000..38d6813
--- /dev/null
+++ b/legacy/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/jcr/commands/GetNodeSize.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.argeo.cms.ui.workbench.internal.jcr.commands;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import javax.jcr.Node;
+
+import org.argeo.cms.ui.jcr.model.SingleJcrNodeElem;
+import org.argeo.cms.ui.jcr.model.WorkspaceElem;
+import org.argeo.cms.ui.workbench.WorkbenchUiPlugin;
+import org.argeo.eclipse.ui.dialogs.ErrorFeedback;
+import org.argeo.jcr.JcrUtils;
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.jface.dialogs.MessageDialog;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.ui.handlers.HandlerUtil;
+
+/** Compute an approximative size for the selected node(s) */
+public class GetNodeSize extends AbstractHandler {
+       // private final static Log log = LogFactory.getLog(GetNodeSize.class);
+
+       public final static String ID = WorkbenchUiPlugin.PLUGIN_ID + ".getNodeSize";
+
+       public Object execute(ExecutionEvent event) throws ExecutionException {
+
+               ISelection selection = HandlerUtil.getActiveWorkbenchWindow(event)
+                               .getActivePage().getSelection();
+
+               if (selection != null && !selection.isEmpty()
+                               && selection instanceof IStructuredSelection) {
+
+                       long size = 0;
+
+                       Iterator<?> it = ((IStructuredSelection) selection).iterator();
+
+                       // TODO enhance this: as the size method is recursive, we keep track
+                       // of nodes for which we already have computed size so that we don't
+                       // count them twice. In a first approximation, we assume that the
+                       // structure selection keep the nodes ordered.
+                       List<String> importedPathes = new ArrayList<String>();
+                       try {
+                               nodesIt: while (it.hasNext()) {
+                                       Object obj = it.next();
+                                       String curPath;
+                                       Node node;
+                                       if (obj instanceof SingleJcrNodeElem) {
+                                               node = ((SingleJcrNodeElem) obj).getNode();
+                                               curPath = node.getSession().getWorkspace().getName();
+                                               curPath += "/" + node.getPath();
+                                       } else if (obj instanceof WorkspaceElem) {
+                                               node = ((WorkspaceElem) obj).getRootNode();
+                                               curPath = node.getSession().getWorkspace().getName();
+                                       } else
+                                               // non valid object type
+                                               continue nodesIt;
+
+                                       Iterator<String> itPath = importedPathes.iterator();
+                                       while (itPath.hasNext()) {
+                                               String refPath = itPath.next();
+                                               if (curPath.startsWith(refPath))
+                                                       // Already done : skip node
+                                                       continue nodesIt;
+                                       }
+                                       size += JcrUtils.getNodeApproxSize(node);
+                                       importedPathes.add(curPath);
+                               }
+                       } catch (Exception e) {
+                               ErrorFeedback.show("Cannot Get size of selected node ", e);
+                       }
+
+                       String[] labels = { "OK" };
+                       Shell shell = HandlerUtil.getActiveWorkbenchWindow(event)
+                                       .getShell();
+                       MessageDialog md = new MessageDialog(shell, "Node size", null,
+                                       "Node size is: " + size / 1024 + " KB",
+                                       MessageDialog.INFORMATION, labels, 0);
+                       md.open();
+               }
+               return null;
+       }
+}