/*
 * Jalview - A Sequence Alignment Editor and Viewer (Version 2.4)
 * Copyright (C) 2008 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
 * 
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */
package jalview.gui;

import java.awt.Component;

public class OOMWarning implements Runnable
{
  String action = null;

  String instructions = "";

  Component desktop = null;

  /**
   * Raise an out of memory error.
   * 
   * @param action -
   *                what was going on when OutOfMemory exception occured.
   * @param instance -
   *                Window where the dialog will appear
   * @param oomex -
   *                the actual exception - to be written to stderr or debugger.
   */
  OOMWarning(String action, OutOfMemoryError oomex, Component instance)
  {
    this.action = action;
    desktop = instance;
    if (oomex != null)
    {
      if (jalview.bin.Cache.log != null)
      {
        jalview.bin.Cache.log.error("Out of Memory when " + action, oomex);
      }
      else
      {
        System.err.println("Out of Memory when " + action);
        oomex.printStackTrace();
      }
    }
    javax.swing.SwingUtilities.invokeLater(this);
    System.gc();
  }

  public OOMWarning(String string, OutOfMemoryError oomerror)
  {
    this(string, oomerror, Desktop.desktop);
  }

  public void run()
  {
    javax.swing.JOptionPane
            .showInternalMessageDialog(
                    desktop,
                    "Out of memory when "
                            + action
                            + "!!"
                            + "\nSee help files for increasing Java Virtual Machine memory.",
                    "Out of memory",
                    javax.swing.JOptionPane.WARNING_MESSAGE);
  }

}