public static boolean saveStringToFile()

in taverna-external-tool-activity-ui/src/main/java/org/apache/taverna/activities/externaltool/views/SaveDescriptionAction.java [79:138]
53 lines of code
8 McCabe index (conditional complexity)

	public static boolean saveStringToFile(Component parent, String dialogTitle, String extension, ToolDescription description) {
		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 {
					List<ToolDescription> currentDescriptions;
					if (file.exists()) {
						currentDescriptions = ToolDescriptionParser.readDescriptionsFromStream(new FileInputStream(file));
					} else {
						currentDescriptions = new ArrayList<ToolDescription>();
					}
					Element overallElement = new Element("tooldescs");
					for (ToolDescription ud : currentDescriptions) {
						if (!ud.getTooldescid().equals(description.getTooldescid())) {
							overallElement.addContent(ud.writeToXMLElement());
						}
					}

					overallElement.addContent(description.writeToXMLElement());
					BufferedWriter out = new BufferedWriter(new FileWriter(file));
			        out.write(outputter.outputString(overallElement));
			        out.close();
					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;
	}