source: trunk/gli/src/org/greenstone/gatherer/gui/ExplodeMetadataPrompt.java@ 9153

/**
 *#########################################################################
 *
 * A component of the Gatherer application, part of the Greenstone digital
 * library suite from the New Zealand Digital Library Project at the
 * University of Waikato, New Zealand.
 *
 * Author: Katherine Don, Greenstone Digital Library, University of Waikato
 *
 * Copyright (C) 2005 New Zealand Digital Library Project
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *########################################################################
 */
package org.greenstone.gatherer.gui;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import java.io.File;
import java.io.StringBufferInputStream;
import java.util.ArrayList;

import org.w3c.dom.Document;

import org.greenstone.gatherer.Dictionary;
import org.greenstone.gatherer.Configuration;
import org.greenstone.gatherer.Gatherer;
import org.greenstone.gatherer.cdm.Argument;
import org.greenstone.gatherer.cdm.CollectionDesignManager;
import org.greenstone.gatherer.cdm.Plugin;
import org.greenstone.gatherer.collection.ScriptOptions;
import org.greenstone.gatherer.gui.tree.DragTree;
import org.greenstone.gatherer.metadata.MetadataXMLFileManager;
import org.greenstone.gatherer.metadata.MetadataElement;
import org.greenstone.gatherer.metadata.MetadataSet;
import org.greenstone.gatherer.metadata.MetadataSetManager;
import org.greenstone.gatherer.metadata.MetadataTools;
import org.greenstone.gatherer.shell.GShell;
import org.greenstone.gatherer.shell.GShellEvent;
import org.greenstone.gatherer.shell.GShellListener;
import org.greenstone.gatherer.util.ArrayTools;
import org.greenstone.gatherer.util.Utility;
import org.greenstone.gatherer.util.XMLTools;

public class ExplodeMetadataPrompt  
    extends ModalDialog
    implements GShellListener
{
    /** The size of this new collection dialog box. */
    static private Dimension SIZE = new Dimension(600, 350);
    private JDialog self;
    
    /** the file we wil be exploding */
    private File metadata_file = null;
    /** the name of the plugin to be used */
    private String plugin_name = null;
    /** holds all the available options for the exploding script */
    private ScriptOptions options = null;
    /** the pane containing the options */
    private JPanel options_pane = null;
    /** the error message if any */
    private StringBuffer error_message = null;
    /** whether we were successful or not */
    private boolean successful;


    public ExplodeMetadataPrompt(File source_file) {
    super(Gatherer.g_man, true);
    this.self = this;
    this.metadata_file = source_file;

    // check that we actually have an explodable file
    Plugin plugin = CollectionDesignManager.plugin_manager.getExploderPlugin(source_file);
    if (plugin==null) {
        JOptionPane.showMessageDialog(Gatherer.g_man, Dictionary.get("ExplodeMetadataPrompt.NotExplodable"), Dictionary.get("ExplodeMetadataPrompt.Title"), JOptionPane.ERROR_MESSAGE);
        return;
    }
    plugin_name = plugin.getName();
    setJMenuBar(new SimpleMenuBar("explodingmetadata"));
    setSize(SIZE);
    Dictionary.setText(this, "ExplodeMetadataPrompt.Title");

    // set up the script options
    // we have empty initial values
    String dom_string = "<Options/>";
    Document doc = XMLTools.parseXML(new StringBufferInputStream(dom_string));
    options = new ScriptOptions(doc.getDocumentElement(), "explode_metadata_database.pl", false);
    
    // Creation
    JPanel content_pane = (JPanel) getContentPane();
    content_pane.setOpaque(true);
    
    options_pane = new JPanel();
    addScriptOptions(options_pane);
    JScrollPane middle_pane = new JScrollPane(options_pane);

    JTextArea instructions_area = new JTextArea();
    instructions_area.setEditable(false);
    instructions_area.setLineWrap(true);
    instructions_area.setRows(5);
    instructions_area.setWrapStyleWord(true);
    Dictionary.setText(instructions_area, "ExplodeMetadataPrompt.Instructions");

    JPanel button_pane = new JPanel();
    JButton explode_button = new GLIButton();
    Dictionary.setBoth(explode_button, "ExplodeMetadataPrompt.Explode", "ExplodeMetadataPrompt.Explode_Tooltip");
    JButton cancel_button = new GLIButton();
    cancel_button.setMnemonic(KeyEvent.VK_C);
    Dictionary.setBoth(cancel_button, "General.Cancel", "General.Cancel_Tooltip");
    
    // Connection
    cancel_button.addActionListener(new CancelListener());
    explode_button.addActionListener(new ExplodeListener());

    // Layout

    button_pane.setBorder(BorderFactory.createEmptyBorder(5,0,0,0));
    button_pane.setLayout(new GridLayout(1,2));
    button_pane.add(explode_button);
    button_pane.add(cancel_button);

    content_pane.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
    content_pane.setLayout(new BorderLayout());
    content_pane.add(instructions_area, BorderLayout.NORTH);
    content_pane.add(middle_pane, BorderLayout.CENTER);
    content_pane.add(button_pane, BorderLayout.SOUTH);

    // Final dialog setup & positioning.
    Dimension screen_size = Configuration.screen_size;
    setLocation((screen_size.width - SIZE.width) / 2, (screen_size.height - SIZE.height) / 2);
    setVisible(true);
    }

    public void destroy() 
    {
        
    }

    /** All implementation of GShellListener must include this method so the listener can be informed of messages from the GShell.
     * @param event A <strong>GShellEvent</strong> that contains, amoung other things, the message.
     */
    public synchronized void message(GShellEvent event) {
    String message = event.getMessage();
    if (message.startsWith("other>")) {
        message = message.substring(6);
        error_message.append(message);
        error_message.append("\n");
    }
    }

    /** All implementation of GShellListener must include this method so the listener can be informed when a GShell begins its task. Implementation side-effect, not actually used.
     * @param event A <strong>GShellEvent</strong> that contains details of the initial state of the <strong>GShell</strong> before task comencement.
     */
    public synchronized void processBegun(GShellEvent event) {
    // We don't care. 
    }
    
    /** All implementation of GShellListener must include this method so the listener can be informed when a GShell completes its task.
     * @param event A <strong>GShellEvent</strong> that contains details of the final state of the <strong>GShell</strong> after task completion.
     */
    public synchronized void processComplete(GShellEvent event) {
    successful = false;
    if(event.getStatus() == GShell.OK) {
        successful = true;
    }
    }

    private void addScriptOptions(JPanel options_pane) {

    options_pane.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
    options_pane.setBackground(Configuration.getColor("coloring.collection_heading_background", false));
    options_pane.setLayout(new BoxLayout(options_pane, BoxLayout.Y_AXIS));

    int current_mode = Configuration.getMode();
    int total_argument_count = options.getArgumentCount();
       
    for(int i = 0; i < total_argument_count; i++) {
        // Retrieve the argument so we know how to format the control.
        Argument argument = options.getArgument(i);
        if(!argument.isHiddenGLI() && argument.getModeLevel() <= current_mode) {
        // by default, all args are disabled, and no value
        ArgumentControl argument_control = new ArgumentControl(argument,false, null);
        // make sure they are coloured the way we want - this is not the standard arg control coloring
        argument_control.setBackground(Configuration.getColor("coloring.collection_heading_background", false));
        options_pane.add((JComponent)argument_control);
        }
    }
    }

    private void updateScriptOptions() {
    for(int i = 0; i < options_pane.getComponentCount(); i++) {
        Component component = options_pane.getComponent(i);
        if(component instanceof ArgumentControl) {
        ArgumentControl ac = (ArgumentControl)component;
        String name = ac.getName();
        String value = ac.getValue();
        boolean enabled = ac.isEnabled();
        if (!enabled && value==null) {
            // flag type, remove from options altogether
            options.removeValue(name);
        } else {
            if (value.equals("")) {
            // if the value is empty, we don't want it to be passed to the script
            options.setValue(name, false, value);
            } else {
            options.setValue(name, enabled, value);
            }
        }

        }
    }
    }

    private int explodeMetadata() {

    String [] args;
    if (Gatherer.isGsdlRemote) {
        // what here??
        return -1;
    }
    if(Utility.isWindows()){
        args = new String[5];
        args[0] = Configuration.perl_path;
        args[1] = "-S";
        args[2] = Configuration.getScriptPath() + "explode_metadata_database.pl";
        args[3] = "-plugin";
        args[4] = plugin_name;
    } else {
        args = new String[3];
        args[0] = Configuration.getScriptPath() + "explode_metadata_database.pl";
        args[1] = "-plugin";
        args[2] = plugin_name;

    }
    // add in all the options from the user
    args = ArrayTools.add(args, options.getValues());
    // add in the filename
    args = ArrayTools.add(args, metadata_file.getPath());

    this.error_message = new StringBuffer();
    GShell process = new GShell(args, GShell.OTHER, 3, this, null, GShell.GSHELL_OTHER);
    //process.start();
    process.run();
    
    if (successful) {
        return 0;
    } 
    return -1;
    }

    private void resultPrompt(boolean success, String message) {
    
    String title;
    String label;
    if (success) {
        title = Dictionary.get("ExplodeMetadataPrompt.Successful_Title");
        label = Dictionary.get("ExplodeMetadataPrompt.Successful_Explode", metadata_file.getName());
    } else {
        title = Dictionary.get("ExplodeMetadataPrompt.Failed_Title");
        label = Dictionary.get("ExplodeMetadataPrompt.Failed_Explode", metadata_file.getName());
    }
    SimpleResultDialog result_dialog = new SimpleResultDialog(title, label, message);
    result_dialog.setVisible(true); // Blocks
    result_dialog.dispose();
    result_dialog = null;

    }
    private class CancelListener
    implements ActionListener {
    public void actionPerformed(ActionEvent event) {
        self.dispose();
    }
    }
    
    private class ExplodeListener
    implements ActionListener {
    
    public void actionPerformed(ActionEvent event) {
        // update the options
        updateScriptOptions();
        int exit_value = explodeMetadata();
        if (exit_value == 0) { // success
        String new_dir = metadata_file.getPath();
        // remove the extension to get the directory name
        new_dir = new_dir.substring(0, new_dir.lastIndexOf('.'));
        MetadataXMLFileManager.loadMetadataXMLFiles(new File(new_dir));
        Gatherer.g_man.refreshCollectionTree(DragTree.COLLECTION_CONTENTS_CHANGED);
        resultPrompt(true, error_message.toString());
        } else { // failure
        resultPrompt(false, error_message.toString());
        }
        error_message = null;
        self.dispose();  
    }
    }
}