org.viafirma.cliente.openid.OpenIdHandlerFactory.java Source code

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Here is the source code for org.viafirma.cliente.openid.OpenIdHandlerFactory.java

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/* Copyright (C) 2007 Flix Garca Borrego (borrego at gmail.com)
      
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
      
   This library 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
   Library General Public License for more details.
      
   You should have received a copy of the GNU Library General Public
   License along with this library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
   MA 02111-1307, USA 
*/
package org.viafirma.cliente.openid;

import java.util.Properties;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.viafirma.cliente.util.Constantes;

import org.openid4java.consumer.ConsumerException;

/**
 * Crea una nueva instancia de un manejador OpenID
 * @author Felix Garcia Borrego (borrego at gmail.com)
 */
public class OpenIdHandlerFactory {

    private static Log log = LogFactory.getLog(OpenIdHandlerFactory.class);

    /**
     * Crea una nueva instancia del Manejador OpenId utilizando los parametros indicados
     * @param propiedades
     * @return
     */
    public static OpenIdHandler build(Properties propiedades) {
        try {
            // recuperamos la url de retorno de autenticacin
            String urlAplicacion = propiedades.getProperty(Constantes.PARAM_URL_APLICACION);

            if (urlAplicacion == null) {
                log.fatal("El cliente OpenId No ha podido ser inicializado, Falta el parametro "
                        + Constantes.PARAM_URL_APLICACION);
                throw new ExceptionInInitializerError(
                        "El cliente OpenId No ha podido ser inicializado, Falta el parametro "
                                + Constantes.PARAM_URL_APLICACION);
            } else {
                log.debug("Nuevo cliente OpenID con url de retorno para la autenticacin OpenId:" + urlAplicacion);
                // inicializo la instancia
                return new OpenIdHandler(urlAplicacion);
            }

            // asigno la instancia generada como instancia singleton.
        } catch (ConsumerException e) {
            log.fatal("El cliente OpenId No ha podido ser inicializado.", e);
            throw new ExceptionInInitializerError(
                    "El cliente OpenId No ha podido ser inicializado." + e.getMessage());

        }
    }

}