package es.inteco.eni.commons;
   
   import java.util.Locale;
   import java.util.MissingResourceException;
   import java.util.ResourceBundle;
   
   import org.apache.log4j.Logger;
   
   import es.inteco.eni.utils.ExceptionUtils;
  
  /**
   * Clase de ayuda para recuperar mensajes de un fichero
   * 
   * 
   *
   */
  public final class MessagesHelper {
  
  	/**
  	 * Log
  	 */
  	private static Logger log = Logger.getLogger(MessagesHelper.class);
  
  	/**
  	 * Nombre del fichero de mensajes
  	 */
  	private static final String MESSAGES_BASE_NAME = "Messages";
  
  	/**
  	 * ResourceBundle
  	 */
  	private static ResourceBundle resourceBundle;
  	static{
  		String language = EniConstants.ENI_WINDOS_LOCALE_LANGUAGE; //ApplicationPropertiesManager.getProperty("eni.windows.locale.language");
  		String country = EniConstants.ENI_WINDOS_LOCALE_COUNTRY; //ApplicationPropertiesManager.getProperty("eni.windows.locale.country");
  		if(language==null || country==null){
  			resourceBundle = ResourceBundle.getBundle(MESSAGES_BASE_NAME);
  		}else{
  			Locale locale = new Locale(language, country);
  			resourceBundle = ResourceBundle.getBundle(MESSAGES_BASE_NAME, locale);
  		}
  
  	}
  	/**
  	 * Constructor privado
  	 */
  	private MessagesHelper(){
  
  	}
  
  	/**
  	 * Devuelve el texto a partir de la clave
  	 * @param key Clave
  	 * @return El texto
  	 */
  	public static String getText(String key){
  		//Comprueba si la clave es nula
  		if(key==null){
  			return null;
  		}
  
  		//Busca el texto por la clave
  		String result = null;
  		try{
  			result = resourceBundle.getString(key);
  		}catch (MissingResourceException mre) {
  			log.error(ExceptionUtils.stackTraceToString(mre));
  		}
  		return result;
  	}
  
  }