/*
 *  Copyright (c) 1998-2009, The University of Sheffield.
 *
 *  This file is part of GATE (see http://gate.ac.uk/), and is free
 *  software, licenced under the GNU Library General Public License,
 *  Version 2, June 1991 (in the distribution as file licence.html,
 *  and also available at http://gate.ac.uk/gate/licence.html).
 *
 *  Johann Petrak 2009-08-13
 *
 *  $Id: ActionLoadOntology.java 11598 2009-10-13 13:44:17Z johann_p $
 */
package gate.creole.ontology.impl.sesame;

import gate.gui.MainFrame;
import gate.util.GateRuntimeException;
import java.awt.event.ActionEvent;
import java.io.FileInputStream;
import java.util.Map;
import javax.swing.AbstractAction;

/**
 * Class for carrying out the action of loading an ontology.
 * This class creates uses {@link #GUILoadOptionsPane} to show a dialog
 * for specifying the file to load and other options and loads the
 * ontology using those options if the user does not choose to cancel.
 *
 * @author Johann Petrak
 */
class ActionLoadOntology
    extends AbstractAction {

  static final long serialVersionUID = 1L;
  private AbstractOntologyImplSesame ontology;

  public ActionLoadOntology(String label, AbstractOntologyImplSesame aThis) {
    super(label);
    ontology = aThis;
  }

  public void actionPerformed(ActionEvent ae) {
    Runnable runableAction = new Runnable() {

      public void run() {
        GUILoadOptionsPane pane = new GUILoadOptionsPane();
        boolean ok = pane.showOptionDialog();
        if (ok) {
          try {
            MainFrame.lockGUI("Loading/importing ontology ... ");
            ontology.readOntologyData(pane.getFile(), pane.getBaseURI(), pane.getFormat(), pane.getAsImport());
            if (pane.getLoadImports()) {
              Map<String, String> mappings;
              if (pane.getMappingsFile() != null) {
                mappings = ontology.loadImportMappingsFile(pane.getMappingsFile().toURI().toURL());
              } else {
                mappings = null;
              }
              ontology.resolveImports(mappings);
            }
          } catch (Exception ex) {
            throw new GateRuntimeException("Problem loading the file: ", ex);
          } finally {
            MainFrame.unlockGUI();
          }
        }
      }
    };
    Thread thread = new Thread(runableAction, "");
    thread.setPriority(Thread.MIN_PRIORITY);
    thread.start();
  }
}