/*
 * Copyright 2014 Federal Chancellery Austria
 * MOA-ID has been developed in a cooperation between BRZ, the Federal
 * Chancellery Austria - ICT staff unit, and Graz University of Technology.
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * http://www.osor.eu/eupl/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 */
package at.gv.egovernment.moa.id.config.auth;

import org.springframework.context.ApplicationContext;

import at.gv.egovernment.moa.id.commons.api.AuthConfiguration;
import at.gv.egovernment.moa.id.commons.api.exceptions.ConfigurationException;
import at.gv.egovernment.moa.logging.Logger;

/**
 * @author tlenz
 *
 */
public class AuthConfigurationProviderFactory {

	/** Singleton instance. <code>null</code>, if none has been created. */
	  private static AuthConfiguration instance = null;;
	
	  
	  public static synchronized AuthConfiguration getInstance()
			    throws ConfigurationException {

			    if (instance == null) {
			    	Logger.fatal("MOA-ID-Auth Configuration is not initialized!!!!!");
			    	
			    }
			    return instance;
			  }
	  
	/**
	 * @return
	 * @throws ConfigurationException 
	 */
	public static AuthConfiguration reload(ApplicationContext springContext) throws ConfigurationException {
	    instance = springContext.getBean("moaidauthconfig", AuthConfiguration.class);	    	
	    return instance;
	    
	}
	
	/**
	 * Set AuthConfig programmatically 
	 * 
	 * @param authConfig
	 */
	public static void setAuthConfig(AuthConfiguration authConfig) {
	  if (instance != null) {
	    throw new RuntimeException("AuthConfig can ONLY set once!");
	    
	  }
	  
	  instance = authConfig;
	  
	}
}