Methods for receving messages from resource bundles : ResourceBundle « I18N « Java

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Java » I18N » ResourceBundleScreenshots 
Methods for receving messages from resource bundles
      
/*
 * $Id: BundleUtils.java,v 1.1.1.1 2005/04/07 18:36:22 pocho Exp $
 */

import java.text.MessageFormat;
import java.util.MissingResourceException;
import java.util.ResourceBundle;

/**
 * Provides convinience methods for receving messages from resource bundles.
 
 @version $Name:  $ - $Revision: 1.1.1.1 $ - $Date: 2005/04/07 18:36:22 $
 */
public class BundleUtils {

  private BundleUtils() {}

  /**
   * Convenience method for receving message of given key from bundle.
   * It handles {@linkplain MissingResourceException} by returning key
   * surrounded by exclamation mark ("!"). Exception's message is also 
   * printed out. 
   
   @param bundle
   @param key
   @return
   */
  public static String getString(ResourceBundle bundle, String key) {
    try {
      return bundle.getString(key);
    }
    catch (Exception ex) {
      System.out.println("Error: " + BundleUtils.class ": method getString(ResourceBundle, String) - bundle: " 
                         bundle + " key: " + key);
      return '!' + key + '!';
    }
  }

  /**
   * Convenience method for formatting returned message with array of objects.
   
   @param bundle
   @param key
   @param objects
   @return
   */
  public static String getMessageFormattedString(ResourceBundle bundle, String key, 
                                          Object[] objects) {
    String message = getString(bundle, key);
    return MessageFormat.format(message, objects)
  }
  
  public static Object[] createParams(Object o) {
    Object[] params = null;
    if (instanceof Object[])
      params = (Object[]) o;
    else if (o != null)
      params = new Object[] {o};

    return params;
  }
  
  /**
   * Convenience method for formatting returned message with a single objects.
   
   @param bundle
   @param key
   @param objects
   @return
   */
  public static String getMessageFormattedString(ResourceBundle bundle, String key, 
                                                 Object param) {
    Object[] o = new Object[] {param};
    return getMessageFormattedString(bundle, key, param);
  }
}

   
    
    
    
    
    
  
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