package au.gov.amsa.ais;
   
   import java.util.ResourceBundle;
   
   /**
    * Handles resource lookup.
    * 
    * @author dxm
    * 
   */
  public class Internationalization {
  
  	private static final String BUNDLE_NAME = "au.gov.amsa.ais.messages";
  
  	private static ResourceBundle bundle = null;
  
  	/**
  	 * Constructor.
  	 */
  	private Internationalization() {
  	}
  
  	/**
  	 * Calls the private constructor to ensure 100% cobertura coverage.
  	 */
  	static void forTestCoverageOnly() {
  		new Internationalization();
  	}
  
  	/**
  	 * Returns the relevant {@link ResourceBundle} for the current locale.
  	 * 
  	 * @return
  	 */
  	private static synchronized ResourceBundle getBundle() {
  		if (bundle == null)
  			bundle = ResourceBundle.getBundle(BUNDLE_NAME);
  		return bundle;
  
  	}
  
  	/**
  	 * Returns the value from the current {@link ResourceBundle} for the given
  	 * key.
  	 * 
  	 * @param key
  	 * @return
  	 */
  	public static String getString(String key) {
  
  		return getBundle().getString(key);
  
  	}
  }