| /** |
| * |
| */ |
| package net.sf.taverna.t2.lang.ui; |
| |
| import java.awt.Component; |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.charset.StandardCharsets; |
| import java.util.prefs.Preferences; |
| |
| import javax.swing.JFileChooser; |
| import javax.swing.JOptionPane; |
| |
| import org.apache.commons.io.FileUtils; |
| import org.apache.log4j.Logger; |
| |
| /** |
| * @author alanrw |
| * |
| */ |
| public class FileTools { |
| |
| private static Logger logger = Logger.getLogger(FileTools.class); |
| |
| |
| |
| public static boolean saveStringToFile(Component parent, String dialogTitle, String extension, String content) { |
| JFileChooser fileChooser = new JFileChooser(); |
| fileChooser.setDialogTitle(dialogTitle); |
| |
| fileChooser.resetChoosableFileFilters(); |
| fileChooser.setAcceptAllFileFilterUsed(true); |
| |
| fileChooser.setFileFilter(new ExtensionFileFilter(new String[] { extension })); |
| |
| Preferences prefs = Preferences.userNodeForPackage(FileTools.class); |
| String curDir = prefs |
| .get("currentDir", System.getProperty("user.home")); |
| fileChooser.setCurrentDirectory(new File(curDir)); |
| |
| boolean tryAgain = true; |
| while (tryAgain) { |
| tryAgain = false; |
| int returnVal = fileChooser.showSaveDialog(parent); |
| if (returnVal == JFileChooser.APPROVE_OPTION) { |
| prefs.put("currentDir", fileChooser.getCurrentDirectory() |
| .toString()); |
| File file = fileChooser.getSelectedFile(); |
| if (!file.getName().contains(".")) { |
| String newName = file.getName() + extension; |
| file = new File(file.getParentFile(), newName); |
| } |
| |
| // TODO: Open in separate thread to avoid hanging UI |
| try { |
| if (file.exists()) { |
| logger.info("File already exists: " + file); |
| String msg = "Are you sure you want to overwrite existing file " |
| + file + "?"; |
| int ret = JOptionPane.showConfirmDialog( |
| parent, msg, "File already exists", |
| JOptionPane.YES_NO_CANCEL_OPTION); |
| if (ret == JOptionPane.YES_OPTION) { |
| |
| } else if (ret == JOptionPane.NO_OPTION) { |
| tryAgain = true; |
| continue; |
| } else { |
| logger.info("Aborted overwrite of " + file); |
| return false; |
| } |
| } |
| FileUtils.writeStringToFile(file, content, StandardCharsets.UTF_8.name()); |
| logger.info("Saved content by overwriting " + file); |
| return true; |
| } catch (IOException ex) { |
| logger.warn("Could not save content to " + file, ex); |
| JOptionPane.showMessageDialog(parent, |
| "Could not save to " + file + ": \n\n" |
| + ex.getMessage(), "Warning", |
| JOptionPane.WARNING_MESSAGE); |
| return false; |
| } |
| } |
| } |
| return false; |
| } |
| |
| public static String readStringFromFile(Component parent, String dialogTitle, String extension) { |
| JFileChooser fileChooser = new JFileChooser(); |
| fileChooser.setDialogTitle(dialogTitle); |
| fileChooser.resetChoosableFileFilters(); |
| fileChooser.setAcceptAllFileFilterUsed(true); |
| |
| fileChooser.setFileFilter(new ExtensionFileFilter(new String[] { extension })); |
| |
| Preferences prefs = Preferences.userNodeForPackage(FileTools.class); |
| String curDir = prefs |
| .get("currentDir", System.getProperty("user.home")); |
| fileChooser.setCurrentDirectory(new File(curDir)); |
| |
| if (fileChooser.showOpenDialog(parent) == JFileChooser.APPROVE_OPTION) { |
| File selectedFile = fileChooser.getSelectedFile(); |
| |
| try { |
| return FileUtils.readFileToString(selectedFile, StandardCharsets.UTF_8.name()); |
| } catch (IOException ioe) { |
| JOptionPane.showMessageDialog(parent, "Can not read file '" |
| + selectedFile.getName() + "'", "Can not read file", |
| JOptionPane.ERROR_MESSAGE); |
| } |
| |
| } |
| return null; |
| } |
| } |