Clean and refactor cms.ui.workbench bundle

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

diff --git a/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/jcr/commands/DumpNode.java b/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/jcr/commands/DumpNode.java
new file mode 100644 (file)
index 0000000..2414f04
--- /dev/null
+++ b/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/jcr/commands/DumpNode.java
@@ -0,0 +1,110 @@
+/*
+ * 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.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.GregorianCalendar;
+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.cms.ui.workbench.WorkbenchUiPlugin;
+import org.argeo.cms.ui.workbench.commands.OpenFile;
+import org.argeo.cms.ui.workbench.internal.jcr.model.SingleJcrNodeElem;
+import org.argeo.cms.ui.workbench.util.CommandUtils;
+import org.argeo.eclipse.ui.EclipseUiException;
+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.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.ui.handlers.HandlerUtil;
+
+/**
+ * Canonically call JCR {@link Session#exportSystemView()} on the first element
+ * returned by {@link HandlerUtil#getActiveWorkbenchWindow()}
+ * (...getActivePage().getSelection()), if it is a {@link SingleJcrNodeElem},
+ * with both skipBinary & noRecurse boolean flags set to false.
+ * 
+ * Resulting stream is saved in a tmp file and opened via the {@link OpenFile}
+ * single-sourced command.
+ */
+public class DumpNode extends AbstractHandler {
+       public final static String ID = WorkbenchUiPlugin.PLUGIN_ID + ".dumpNode";
+
+       private final static DateFormat df = new SimpleDateFormat(
+                       "yyyy-MM-dd_HH-mm");
+
+       public Object execute(ExecutionEvent event) throws ExecutionException {
+               ISelection selection = HandlerUtil.getActiveWorkbenchWindow(event)
+                               .getActivePage().getSelection();
+               if (selection == null || !(selection instanceof IStructuredSelection))
+                       return null;
+
+               Iterator<?> lst = ((IStructuredSelection) selection).iterator();
+               if (lst.hasNext()) {
+                       Object element = lst.next();
+                       if (element instanceof SingleJcrNodeElem) {
+                               SingleJcrNodeElem sjn = (SingleJcrNodeElem) element;
+                               Node node = sjn.getNode();
+
+                               // TODO add a dialog to configure the export and ask for
+                               // confirmation
+                               // Boolean ok = MessageDialog.openConfirm(
+                               // HandlerUtil.getActiveShell(event), "Confirm deletion",
+                               // "Do you want to delete " + buf + "?");
+
+                               File tmpFile;
+                               FileOutputStream fos;
+                               try {
+                                       tmpFile = File.createTempFile("JcrExport", ".xml");
+                                       tmpFile.deleteOnExit();
+                                       fos = new FileOutputStream(tmpFile);
+                                       String dateVal = df.format(new GregorianCalendar()
+                                                       .getTime());
+                                       node.getSession().exportSystemView(node.getPath(), fos,
+                                                       true, false);
+                                       openGeneratedFile(tmpFile.getAbsolutePath(), "Dump-"
+                                                       + JcrUtils.replaceInvalidChars(node.getName())
+                                                       + "-" + dateVal + ".xml");
+                               } catch (RepositoryException e) {
+                                       throw new EclipseUiException(
+                                                       "Unable to perform SystemExport on " + node, e);
+                               } catch (IOException e) {
+                                       throw new EclipseUiException("Unable to SystemExport "
+                                                       + node, e);
+                               }
+                       }
+               }
+               return null;
+       }
+
+       private synchronized void openGeneratedFile(String path, String fileName) {
+               Map<String, String> params = new HashMap<String, String>();
+               params.put(OpenFile.PARAM_FILE_NAME, fileName);
+               params.put(OpenFile.PARAM_FILE_URI, "file://" + path);
+               CommandUtils.callCommand(OpenFile.ID, params);
+       }
+}