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Aplicacion auxiliar de instalacion de AutoFirma

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/* Copyright (C) 2011 [Gobierno de Espana]
 * This file is part of "Cliente @Firma".
 * "Cliente @Firma" 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.
 *   - or The European Software License; either version 1.1 or (at your option) any later version.
 * You may contact the copyright holder at: [email protected]
 */

package es.gob.afirma.standalone.configurator;

import java.awt.Component;
import java.awt.GraphicsEnvironment;
import java.util.logging.Logger;

import javax.swing.JOptionPane;

import es.gob.afirma.core.misc.Platform;

final class ConsoleManager {

    private static final Logger LOGGER = Logger.getLogger("es.gob.afirma"); //$NON-NLS-1$

    private static boolean getHeadLess() {
        if (GraphicsEnvironment.isHeadless()) {
            return true;
        }
        if (Platform.OS.LINUX.equals(Platform.getOS())) {
            return true;
        }
        return false;
    }

	private static final boolean headless = getHeadLess();
	private static final java.io.Console con = System.console();

	/**
	 * Recupera una consola para la notificación del estado del proceso
	 * de configuración. La selección se realizará en base
	 * al entorno de ejecución.
	 * @param cl Escuchador que reaccionará ante los mensajes de la consola.
	 * Si se indica {@code null} se usará un consola sin entorno gráfico.
	 * @return
	 */
	static Console getConsole(final ConsoleListener cl) {
		if (headless || cl == null) {
			if (con != null) {
			    LOGGER.info("Se utilizara la consola de tipo I/O"); //$NON-NLS-1$
				return new IoConsole(con);
			}
			LOGGER.info("Se utilizara la consola del sistema"); //$NON-NLS-1$
			return new PrintConsole();
		}
		LOGGER.info("Se utilizara la consola grafica"); //$NON-NLS-1$
		return new GraphicConfiguratorConsole(cl);
	}

	static void showErrorMessage(final Component parent, final String errorText) {
		if (!headless) {
			JOptionPane.showMessageDialog(
				parent,
				errorText,
				Messages.getString("AutoFirmaConfigurator.2"), //$NON-NLS-1$
				JOptionPane.ERROR_MESSAGE
			);
		}
		else if (con != null) {
			con.printf(errorText);
		}
		else {
			System.out.println(errorText);
		}
	}

}