source: trunk/gli/src/org/greenstone/gatherer/gui/Preferences.java@ 6160

package org.greenstone.gatherer.gui;

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import org.greenstone.gatherer.Configuration;
import org.greenstone.gatherer.Dictionary;
import org.greenstone.gatherer.Gatherer;
import org.greenstone.gatherer.checklist.CheckList;
import org.greenstone.gatherer.checklist.Entry;
import org.greenstone.gatherer.gui.EmailField;
import org.greenstone.gatherer.gui.ModalDialog;
import org.greenstone.gatherer.gui.SimpleMenuBar;
import org.greenstone.gatherer.gui.tree.DragTree;
import org.greenstone.gatherer.util.StaticStrings;
import org.greenstone.gatherer.util.Utility;
import org.w3c.dom.*;

public class Preferences
    extends ModalDialog {

    private CheckList warning_preferences_check_list;
    private EmailField email_field;
    private JButton apply_button;
    private JButton cancel_button;
    private JButton ok_button;
    private JCheckBox show_file_size_checkbox;
    private JCheckBox use_proxy_checkbox;
    private JCheckBox view_extracted_metadata_checkbox;
    private JCheckBox workflow_browse;
    private JCheckBox workflow_create;
    private JCheckBox workflow_mirror;
    private JCheckBox workflow_gather;
    private JCheckBox workflow_enrich;
    private JCheckBox workflow_design;
    private JCheckBox workflow_export;
    private JCheckBox workflow_preview;
    private JComboBox language_combobox;
    private JLabel email_label;
    private JLabel language_label;
    private JLabel library_path_label;
    private JLabel predefined_label;
    private JLabel proxy_host_label;
    private JLabel proxy_port_label;
    private JLabel title_label;
    private JTabbedPane tab_pane;
    private JTextField library_path_field;
    private JTextField proxy_host_field;
    private JSpinner proxy_port_field;
    private Preferences self;

    static final Dimension LABEL_SIZE = new Dimension(175, 25);
    static final Dimension ROW_SIZE = new Dimension(640, 25);
    static final Dimension SIZE = new Dimension(640, 345);
    static final String TRUE = "true";

    public Preferences() {
    // Initialize
    super(Gatherer.g_man, true);
    this.self = this;
    setSize(SIZE);
    Dictionary.registerText(this, "Preferences");
    setJMenuBar(new SimpleMenuBar("preferences"));

    // Creation
    JPanel content_pane = (JPanel) getContentPane();
    tab_pane = new JTabbedPane();
    JPanel general_preferences = createGeneralPreferences();
    tab_pane.add("Preferences.General", general_preferences);
    tab_pane.add("Preferences.Workflow", createWorkflowPreferences());
    tab_pane.add("Preferences.Connection", createConnectionPreferences());
    tab_pane.add("Preferences.Warnings", createWarningPreferences());
    Dictionary.register(tab_pane);

    JPanel button_pane = new JPanel();
    ok_button = new JButton();
    Dictionary.registerBoth(ok_button, "General.OK", "General.OK_Tooltip");
    apply_button = new JButton();
    Dictionary.registerBoth(apply_button, "General.Apply", "General.Apply_Tooltip");
    cancel_button = new JButton();
    Dictionary.registerBoth(cancel_button, "General.Cancel", "General.Cancel_Tooltip");

    // Connection
    ok_button.addActionListener(new OKButtonListener(true));
    apply_button.addActionListener(new OKButtonListener(false));
    cancel_button.addActionListener(new CancelButtonListener());

    // Layout
    button_pane.setBorder(BorderFactory.createEmptyBorder(5,2,2,2));
    button_pane.setLayout(new GridLayout(1,3,0,5));
    button_pane.add(ok_button);
    button_pane.add(apply_button);
    button_pane.add(cancel_button);

    content_pane.setLayout(new BorderLayout());
    content_pane.add(tab_pane, BorderLayout.CENTER);
    content_pane.add(button_pane, BorderLayout.SOUTH);

    Dimension frame_size = Gatherer.g_man.getSize();
    Point frame_location = Gatherer.g_man.getLocation();
    //setLocation(frame_location.x + ((frame_size.width - SIZE.width) / 2), frame_location.y + ((frame_size.height - SIZE.height)));
    setLocation(((frame_size.width - SIZE.width) / 2), ((frame_size.height - SIZE.height)));

    // Clean up
    frame_location = null;
    frame_size = null;
    cancel_button = null;
    ok_button = null;
    button_pane = null;
    tab_pane = null;
    content_pane = null;
    setVisible(true);
    }

    private JPanel createConnectionPreferences() {
    JPanel library_path_pane = new JPanel();
    library_path_pane.setPreferredSize(ROW_SIZE);
    library_path_label = new JLabel();
    library_path_label.setPreferredSize(LABEL_SIZE);
    Dictionary.registerText(library_path_label, "Preferences.Connection.Library_Path");
    library_path_field = new JTextField(Gatherer.config.getString("general.exec_address", true));
    library_path_field.setCaretPosition(0);
    Dictionary.registerTooltip(library_path_field, "Preferences.Connection.Library_Path_Tooltip");

    boolean currently_enabled = Gatherer.config.get("general.use_proxy", true);
    // Creation
    JPanel connection_pane = new JPanel();
    use_proxy_checkbox = new JCheckBox();
    use_proxy_checkbox.setSelected(currently_enabled);
    Dictionary.registerText(use_proxy_checkbox, "Preferences.Connection.Use_Proxy");

    use_proxy_checkbox.setPreferredSize(ROW_SIZE);
    JPanel proxy_host_pane = new JPanel();
    proxy_host_pane.setPreferredSize(ROW_SIZE);
    proxy_host_label = new JLabel();
    proxy_host_label.setPreferredSize(LABEL_SIZE);
    Dictionary.registerText(proxy_host_label, "Preferences.Connection.Proxy_Host");
    proxy_host_field = new JTextField(Gatherer.config.getString("general.proxy_host", true));
    proxy_host_field.setEnabled(currently_enabled);
    Dictionary.registerTooltip(proxy_host_field, "Preferences.Connection.Proxy_Host_Tooltip");
    JPanel proxy_port_pane = new JPanel();
    proxy_port_pane.setPreferredSize(ROW_SIZE);
    proxy_port_label = new JLabel();
    proxy_port_label.setPreferredSize(LABEL_SIZE);
    Dictionary.registerText(proxy_port_label, "Preferences.Connection.Proxy_Port");
    String port_value = Gatherer.config.getString("general.proxy_port", true);
    if(port_value.length() > 0) {
       proxy_port_field = new JSpinner(new SpinnerNumberModel((new Integer(port_value)).intValue(), 0, 65535, 1));
    }
    else {
       proxy_port_field = new JSpinner(new SpinnerNumberModel(0, 0, 65535, 1));
    }
    proxy_port_field.setEnabled(currently_enabled);
    Dictionary.registerTooltip(proxy_port_field, "Preferences.Connection.Proxy_Port_Tooltip");

    // Connection
    use_proxy_checkbox.addActionListener(new UseProxyListener());

    // Layout
    library_path_pane.setLayout(new BorderLayout());
    library_path_pane.add(library_path_label, BorderLayout.WEST);
    library_path_pane.add(library_path_field, BorderLayout.CENTER);

    proxy_host_pane.setLayout(new BorderLayout());
    proxy_host_pane.add(proxy_host_label, BorderLayout.WEST);
    proxy_host_pane.add(proxy_host_field, BorderLayout.CENTER);

    proxy_port_pane.setLayout(new BorderLayout());
    proxy_port_pane.add(proxy_port_label, BorderLayout.WEST);
    proxy_port_pane.add(proxy_port_field, BorderLayout.CENTER);

    connection_pane.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
    connection_pane.setLayout(new GridLayout(8,1,0,2));
    connection_pane.add(library_path_pane);
    connection_pane.add(use_proxy_checkbox);
    connection_pane.add(proxy_host_pane);
    connection_pane.add(proxy_port_pane);

    return connection_pane;
    }

    private JPanel createGeneralPreferences() {
    JPanel general_pane = new JPanel();

    // Build the model of available languages
    ArrayList dictionary_model = new ArrayList();

    dictionary_model.add(new DictionaryEntry(Locale.ENGLISH));
    File classes_folder = new File(Utility.BASE_DIR + StaticStrings.CLASSES_FOLDER);
    File[] possible_dictionaries = classes_folder.listFiles();
    for(int i = 0; i < possible_dictionaries.length; i++) {
        String filename = possible_dictionaries[i].getName();
        if(filename.endsWith(StaticStrings.PROPERTIES_FILE_EXTENSION) && filename.indexOf(StaticStrings.UNDERSCORE_CHARACTER) != -1) {
        StringTokenizer tokenizer = new StringTokenizer(filename.substring(filename.indexOf(StaticStrings.UNDERSCORE_CHARACTER) + 1, filename.indexOf(StaticStrings.STOP_CHARACTER)), StaticStrings.UNDERSCORE_CHARACTER);
        Locale locale = null;
        switch(tokenizer.countTokens()) {
        case 1:
            locale = new Locale(tokenizer.nextToken().toLowerCase());
            break;
        case 2:
            locale = new Locale(tokenizer.nextToken().toLowerCase(), tokenizer.nextToken().toUpperCase());
            break;
        }
        tokenizer = null;
        // Open the file and read the first line
        String description = null;
        try {
            BufferedReader br = new BufferedReader(new FileReader(possible_dictionaries[i]));
            String first_line = br.readLine();
            br.close();
            description = first_line.substring(first_line.indexOf(StaticStrings.COLON_CHARACTER) + 1);
        }
        catch(Exception error) {
        }
        DictionaryEntry entry = new DictionaryEntry(description, locale);
        description = null;
        locale = null;
        if(!dictionary_model.contains(entry)) {
            dictionary_model.add(entry);
        }
        entry = null;
        }
        filename = null;
    }
    possible_dictionaries = null;
    classes_folder = null;

    // Users email
    JPanel email_pane = new JPanel();
    email_label = new JLabel();
    email_label.setPreferredSize(LABEL_SIZE);
    Dictionary.registerText(email_label, "Preferences.General.Email");
    email_field = new EmailField(Gatherer.config.getColor("coloring.error_background", false));
    email_field.setText(Gatherer.config.getEmail());
    Dictionary.registerTooltip(email_field, "Preferences.General.Email_Tooltip");

    // Extracted metadata
    view_extracted_metadata_checkbox = new JCheckBox();
    view_extracted_metadata_checkbox.setSelected(false);
    if (Gatherer.config.get("general.view_extracted_metadata", Configuration.COLLECTION_SPECIFIC)) {
        view_extracted_metadata_checkbox.setSelected(true);
    }
    Dictionary.registerBoth(view_extracted_metadata_checkbox, "Preferences.General.View_Extracted_Metadata", "Preferences.General.View_Extracted_Metadata_Tooltip");

    // Show file sizes
    show_file_size_checkbox = new JCheckBox();
    show_file_size_checkbox.setSelected(false);
    if (Gatherer.config.get("general.show_file_size", Configuration.COLLECTION_SPECIFIC)) {
        show_file_size_checkbox.setSelected(true);
    }
    Dictionary.registerBoth(show_file_size_checkbox, "Preferences.General.Show_File_Size", "Preferences.General.Show_File_Size_Tooltip");

    // Language
    JPanel language_pane = new JPanel();
    language_label = new JLabel();
    language_label.setPreferredSize(LABEL_SIZE);
    Dictionary.registerText(language_label, "Preferences.General.Interface_Language");
    language_combobox = new JComboBox(dictionary_model.toArray());
    Dictionary.registerTooltip(language_combobox, "Preferences.General.Interface_Language_Tooltip");

    // Connect
    language_combobox.addActionListener(new LanguageComboboxListener());

    // Layout
    email_pane.setLayout(new BorderLayout());
    email_pane.add(email_label, BorderLayout.WEST);
    email_pane.add(email_field, BorderLayout.CENTER);

    language_pane.setLayout(new BorderLayout());
    language_pane.add(language_label, BorderLayout.WEST);
    language_pane.add(language_combobox, BorderLayout.CENTER);

    general_pane.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
    general_pane.setLayout(new GridLayout(5,1,0,5));
    general_pane.add(email_pane);
    general_pane.add(language_pane);
    general_pane.add(view_extracted_metadata_checkbox);
    general_pane.add(show_file_size_checkbox);

    return general_pane;
    }

    /** The warning preferences are controlled through a checklist. */
    private JPanel createWarningPreferences() {
    // Retrieve all of the warning preferences settings.
    HashMap warning_preferences = Gatherer.config.getAll("warning\\..*", true);
    warning_preferences_check_list = new CheckList(false);
    for(Iterator keys = warning_preferences.keySet().iterator(); keys.hasNext(); ) {
        String property = (String) keys.next();
        String value = (String) warning_preferences.get(property);
        // Remove 'warning.'
        String title = Dictionary.get(property.substring(8) + ".Title");
        Entry entry = new Entry(title, value.equalsIgnoreCase(TRUE));
        entry.setProperty(property);
        warning_preferences_check_list.addEntry(entry);
    }
    // Creation
    JPanel warning_preferences_pane = new JPanel();
    // Connection
    // Layout
    warning_preferences_pane.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
    warning_preferences_pane.setLayout(new BorderLayout());
    warning_preferences_pane.add(new JScrollPane(warning_preferences_check_list), BorderLayout.CENTER);

    return warning_preferences_pane;
    }

    private JPanel createWorkflowPreferences() {
    // Read in the predefined configurations file
    Vector predefined = new Vector();
    Document predefined_document = Utility.parse("xml/workflows.xml", true);
    Element predefined_element = predefined_document.getDocumentElement();
    NodeList workflow_elements = predefined_element.getElementsByTagName("Workflow");
    for(int i = 0; i < workflow_elements.getLength(); i++) {
        predefined.add(new WorkflowElementWrapper((Element)workflow_elements.item(i)));
    }

    // Creation
    JPanel workflow_preferences_pane = new JPanel();
    JPanel checklist_pane = new JPanel();
    title_label = new JLabel();
    title_label.setPreferredSize(ROW_SIZE);
    Dictionary.registerText(title_label, "Preferences.Workflow.Title");

    workflow_browse = new JCheckBox();
    workflow_browse.setSelected(Gatherer.config.get("workflow.browse", false));
    workflow_browse.setPreferredSize(ROW_SIZE);
    Dictionary.registerText(workflow_browse, "Preferences.Workflow.Browse");

    workflow_mirror = new JCheckBox();
    workflow_mirror.setSelected(Gatherer.config.get("workflow.mirror", false));
    workflow_mirror.setPreferredSize(ROW_SIZE);
    Dictionary.registerText(workflow_mirror, "Preferences.Workflow.Mirror");

    workflow_gather = new JCheckBox();
    workflow_gather.setSelected(Gatherer.config.get("workflow.gather", false));
    workflow_gather.setPreferredSize(ROW_SIZE);
    Dictionary.registerText(workflow_gather, "Preferences.Workflow.Gather");

    workflow_enrich = new JCheckBox();
    workflow_enrich.setSelected(Gatherer.config.get("workflow.enrich", false));
    workflow_enrich.setPreferredSize(ROW_SIZE);
    Dictionary.registerText(workflow_enrich, "Preferences.Workflow.Enrich");

    workflow_design = new JCheckBox();
    workflow_design.setSelected(Gatherer.config.get("workflow.design", false));
    workflow_design.setPreferredSize(ROW_SIZE);
    Dictionary.registerText(workflow_design, "Preferences.Workflow.Design");

    workflow_export = new JCheckBox();
    workflow_export.setSelected(Gatherer.config.get("workflow.export", false));
    workflow_export.setPreferredSize(ROW_SIZE);
    Dictionary.registerText(workflow_export, "Preferences.Workflow.Export");

    workflow_create = new JCheckBox();
    workflow_create.setSelected(Gatherer.config.get("workflow.create", false));
    workflow_create.setPreferredSize(ROW_SIZE);
    Dictionary.registerText(workflow_create, "Preferences.Workflow.Create");

    workflow_preview = new JCheckBox();
    workflow_preview.setSelected(Gatherer.config.get("workflow.preview", false));
    workflow_preview.setPreferredSize(ROW_SIZE);
    Dictionary.registerText(workflow_preview, "Preferences.Workflow.Preview");

    JPanel predefined_pane = new JPanel();
    predefined_label = new JLabel();
    predefined_label.setPreferredSize(new Dimension(150,25));
    Dictionary.registerText(predefined_label, "Preferences.Workflow.Predefined.Label");
    JComboBox predefined_combobox = new JComboBox(predefined);

    // Connection
    predefined_combobox.addActionListener(new PredefinedActionListener());

    // Layout
    checklist_pane.setLayout(new BoxLayout(checklist_pane, BoxLayout.Y_AXIS));
    checklist_pane.add(title_label);
    if (Gatherer.config.get("workflow.browse", true)) {
        checklist_pane.add(workflow_browse);
    }
    if (Gatherer.config.get("workflow.mirror", true)) {
        checklist_pane.add(workflow_mirror);
    }
    if (Gatherer.config.get("workflow.gather", true)) {
        checklist_pane.add(workflow_gather);
    }
    if (Gatherer.config.get("workflow.enrich", true)) {
        checklist_pane.add(workflow_enrich);
    }
    if (Gatherer.config.get("workflow.design", true)) {
        checklist_pane.add(workflow_design);
    }
    if (Gatherer.config.get("workflow.export", true)) {
        checklist_pane.add(workflow_export);
    }
    if (Gatherer.config.get("workflow.create", true)) {
        checklist_pane.add(workflow_create);
    }
    if (Gatherer.config.get("workflow.preview", true)) {
        checklist_pane.add(workflow_preview);
    }
    predefined_pane.setLayout(new BorderLayout());
    predefined_pane.add(predefined_label, BorderLayout.WEST);
    predefined_pane.add(predefined_combobox, BorderLayout.CENTER);

    workflow_preferences_pane.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
    workflow_preferences_pane.setLayout(new BorderLayout());
    workflow_preferences_pane.add(checklist_pane, BorderLayout.CENTER);
    workflow_preferences_pane.add(predefined_pane, BorderLayout.SOUTH);

    return workflow_preferences_pane;
    }

    public void dispose() {
        // Where's my code for unregistering all of the components?!?

        // Dispose
        super.dispose();
    }

    private class OKButtonListener
    implements ActionListener {
    private boolean close;
    public OKButtonListener(boolean close) {
        this.close = close;
    }
    public void actionPerformed(ActionEvent event) {
        // Submit the various changes.
        // Connection preferences
        String library_path_string = library_path_field.getText();
        Gatherer.config.setString("general.exec_address", true, library_path_string);
        if (!library_path_string.equals("")) {
        try {
            Gatherer.config.exec_address = new URL(library_path_string);
        }
        catch (MalformedURLException error) {
            ///ystem.err.println("Error: Bad address: " + exec_address_string);
        }
        }
        Gatherer.config.set("general.use_proxy", true, use_proxy_checkbox.isSelected());
        Gatherer.config.setString("general.proxy_host", true, proxy_host_field.getText());
        Gatherer.config.setString("general.proxy_port", true, proxy_port_field.getValue() + "");
        Gatherer.setProxy();

        // General preferences
        Gatherer.config.setEmail(email_field.getText());

        Gatherer.config.set("general.show_file_size", Configuration.COLLECTION_SPECIFIC, show_file_size_checkbox.isSelected());
        Gatherer.g_man.refreshTrees(DragTree.TREE_DISPLAY_CHANGED);

        Gatherer.config.set("general.view_extracted_metadata", Configuration.COLLECTION_SPECIFIC, view_extracted_metadata_checkbox.isSelected());
        Gatherer.g_man.metaedit_pane.valueChanged((TreeSelectionEvent) null); // Refresh metadata table

        Gatherer.config.setLocale("general.locale", Configuration.GENERAL_SETTING, ((DictionaryEntry)language_combobox.getSelectedItem()).getLocale());

        // Warning preferences
        for(int i = 0; i < warning_preferences_check_list.getEntryCount(); i++) {
        Entry entry = warning_preferences_check_list.get(i);
        Gatherer.config.set(entry.getProperty(), true, entry.isSelected());
        }
        // Workflow preferences
        Gatherer.config.set("workflow.browse", false, workflow_browse.isSelected());
        Gatherer.config.set("workflow.mirror", false, workflow_mirror.isSelected());
        Gatherer.config.set("workflow.gather", false, workflow_gather.isSelected());
        Gatherer.config.set("workflow.enrich", false, workflow_enrich.isSelected());
        Gatherer.config.set("workflow.design", false, workflow_design.isSelected());
        Gatherer.config.set("workflow.export", false, workflow_export.isSelected());
        Gatherer.config.set("workflow.create", false, workflow_create.isSelected());
        Gatherer.config.set("workflow.preview", false, workflow_preview.isSelected());
        Gatherer.g_man.workflowUpdate("Hunt", workflow_browse.isSelected());
        Gatherer.g_man.workflowUpdate("Mirror", workflow_mirror.isSelected());
        Gatherer.g_man.workflowUpdate("Gather", workflow_gather.isSelected());
        Gatherer.g_man.workflowUpdate("Enrich", workflow_enrich.isSelected());
        Gatherer.g_man.workflowUpdate("Design", workflow_design.isSelected());
        Gatherer.g_man.workflowUpdate("Export", workflow_export.isSelected());
        Gatherer.g_man.workflowUpdate("Create", workflow_create.isSelected());
        Gatherer.g_man.workflowUpdate("Preview", workflow_preview.isSelected());
        // Hide dialog
        if(close) {
        self.dispose();
        }
    }
    }

    private class CancelButtonListener
    implements ActionListener {
    public void actionPerformed(ActionEvent event) {
        self.dispose();
    }
    }

    private class DictionaryEntry
    implements Comparable {
    private Locale locale;
    private String description;
    public DictionaryEntry(Locale locale) {
        this.description = null;
        this.locale = locale;
    }
    public DictionaryEntry(String description, Locale locale) {
        this.description = description;
        this.locale = locale;
    }
    public int compareTo(Object object) {
        return toString().compareTo(object.toString());
    }
    public boolean equals(Object object) {
        return toString().equals(object.toString());
    }
    public Locale getLocale() {
        return locale;
    }
    public String toString() {
        if(description != null) {
        return description;
        }
        else {
        return locale.getDisplayName();
        }
    }
    }

    private class PredefinedActionListener
    implements ActionListener {
    public void actionPerformed(ActionEvent event) {
        JComboBox cb = (JComboBox) event.getSource();
        WorkflowElementWrapper element = (WorkflowElementWrapper) cb.getSelectedItem();
        CheckboxUpdater task = new CheckboxUpdater(element);
        SwingUtilities.invokeLater(task);
    }

    private class CheckboxUpdater
        implements Runnable {
        private WorkflowElementWrapper element;
        public CheckboxUpdater(WorkflowElementWrapper element) {
        this.element = element;
        }
        public void run() {
        workflow_browse.setSelected(element.getEnabled("browse"));
        workflow_create.setSelected(element.getEnabled("create"));
        workflow_mirror.setSelected(element.getEnabled("mirror"));
        workflow_gather.setSelected(element.getEnabled("gather"));
        workflow_enrich.setSelected(element.getEnabled("enrich"));
        workflow_design.setSelected(element.getEnabled("design"));
        workflow_export.setSelected(element.getEnabled("export"));
        workflow_preview.setSelected(element.getEnabled("preview"));
        }
    }
    }

    private class LanguageComboboxListener
    implements ActionListener {
    public void actionPerformed(ActionEvent event) {
        // Retrieve the entry
        DictionaryEntry entry = (DictionaryEntry) language_combobox.getSelectedItem();
        if(entry != null) {
        Gatherer.dictionary.changeDictionary(entry.getLocale());
        // Display message
        JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("Preferences.General.Restart_Required"), Dictionary.get("Preferences.General.Restart_Required"), JOptionPane.WARNING_MESSAGE);
        }
    }
    }

    private class UseProxyListener
    implements ActionListener {
    public void actionPerformed(ActionEvent event) {
        boolean enabled = use_proxy_checkbox.isSelected();
        Gatherer.config.set("general.use_proxy", true, enabled);
        // Fortunately this is already driven by the event thread.
        proxy_host_field.setEnabled(enabled);
        proxy_port_field.setEnabled(enabled);
    }
    }

    private class WorkflowElementWrapper {
    private Element element;
    private String text;
    public WorkflowElementWrapper(Element element) {
        this.element = element;
    }
    public boolean getEnabled(String name) {
        boolean result = true;
        if(element.getAttribute(name).equalsIgnoreCase("false")) {
        result = false;
        }
        return result;
    }
    public String toString() {
        if(text == null) {
        text = element.getFirstChild().getNodeValue();
        }
        return text;
    }
    }
}