[GitHub] [netbeans] MasterEx commented on a change in pull request #2169: [NETBEANS-4415] Export dataview results to file

[GitBox <gi...@apache.org>]

MasterEx commented on a change in pull request #2169:
URL: https://github.com/apache/netbeans/pull/2169#discussion_r499297230



##########
File path: ide/db.dataview/src/org/netbeans/modules/db/dataview/output/dataexport/DataViewTableDataExportFileChooser.java
##########
@@ -0,0 +1,106 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.netbeans.modules.db.dataview.output.dataexport;
+
+import java.io.File;
+import java.util.Arrays;
+import java.util.List;
+import javax.swing.JFileChooser;
+import javax.swing.JOptionPane;
+import javax.swing.JTable;
+import javax.swing.filechooser.FileFilter;
+import org.netbeans.api.progress.BaseProgressUtils;
+import org.openide.util.NbBundle;
+
+/**
+ *
+ * @author Periklis Ntanasis <pn...@gmail.com>
+ */
+@NbBundle.Messages({
+    "LBL_FILE_CHOOSER=Export Table Data",
+    "LBL_OVEWRITE_DIALOG=Confirm Data Export",
+    "MSG_OVEWRITE_DIALOG=File already exists.\nDo you want to overwrite it?",
+    "MSG_EXPORT_DATA=Export Data..."
+})
+public class DataViewTableDataExportFileChooser {
+
+    private static final List<DataExporter> EXPORTERS = Arrays.asList(
+            new CSVDataExporter(),
+            new TSVDataExporter(),
+            new XLSXDataExporter()
+    );
+    
+    private static File defaultDirectory;
+
+    public static void extractAsFile(final JTable table) {
+        final JFileChooser fc = initializeFileChooser();
+        int returnVal = fc.showDialog(null, Bundle.LBL_FILE_CHOOSER());
+        switch (returnVal) {
+            case JFileChooser.APPROVE_OPTION:
+                FileFilter filter = fc.getFileFilter();
+                DataExporter selectedExporter = EXPORTERS.stream()
+                        .filter(exporter -> exporter.getFileFilter() == filter)
+                        .findAny().orElseThrow(() -> new AssertionError("No matching file exporter filter found."));
+                final File file = checkFileExtension(fc.getSelectedFile(), selectedExporter);
+                if (checkFile(file)) {
+                    final String[] columnNames = DataExportUtils.getColumnNames(table);
+                    final Object[][] content = DataExportUtils.getTableContents(table);
+                    BaseProgressUtils.showProgressDialogAndRun(
+                            () -> selectedExporter.exportData(
+                                    columnNames,
+                                    content,
+                                    file),
+                            Bundle.MSG_EXPORT_DATA());
+                }
+                break;
+        }
+    }
+
+    private static boolean checkFile(File file) {
+        if (file.exists()) {
+            int a = JOptionPane.showConfirmDialog(
+                    null,
+                    Bundle.LBL_OVEWRITE_DIALOG(),
+                    Bundle.MSG_OVEWRITE_DIALOG(),
+                    JOptionPane.YES_NO_OPTION);
+            return a == JOptionPane.YES_OPTION;
+        }
+        return true;
+    }
+
+    private static File checkFileExtension(File file, DataExporter exporter) {
+        if (!exporter.handlesFileFormat(file)) {
+            return new File(file.getAbsolutePath() + "." + exporter.getDefaultFileExtension());
+        }
+        return file;
+    }
+    
+    private static JFileChooser initializeFileChooser() {
+        final JFileChooser fc = new JFileChooser();
+        fc.setAcceptAllFileFilterUsed(false);
+        EXPORTERS.forEach(exporter -> fc.addChoosableFileFilter(exporter.getFileFilter()));
+        if (defaultDirectory == null) {
+            defaultDirectory = fc.getCurrentDirectory();
+        }

Review comment:
       Sorry for the late response, I was a bit busier than expected. I have made the relevant change about the file chooser current directory.




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