+/*
+ * 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);
+ }
+}