cvs commit: xml-xerces/java/src/org/apache/xerces/msg ExceptionMessagesLocalizer.java

[rp...@locus.apache.org]

rpfeiffe    00/02/07 20:00:31

  Added:       java/src/org/apache/xerces/msg
                        ExceptionMessagesLocalizer.java
  Log:
  A utility class to  localize ExceptionMessages.
  -rip
  
  Revision  Changes    Path
  1.1                  xml-xerces/java/src/org/apache/xerces/msg/ExceptionMessagesLocalizer.java
  
  Index: ExceptionMessagesLocalizer.java
  ===================================================================
  /*
   * The Apache Software License, Version 1.1
   *
   *
   * Copyright (c) 1999 The Apache Software Foundation.  All rights 
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer. 
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution,
   *    if any, must include the following acknowledgment:  
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Xerces" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written 
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation and was
   * originally based on software copyright (c) 1999, International
   * Business Machines, Inc., http://www.apache.org.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  package org.apache.xerces.msg;
  
  import java.util.Locale;
  import java.util.ListResourceBundle;
  import java.util.ResourceBundle;
  import java.util.StringTokenizer;
  
  
  public class ExceptionMessagesLocalizer {
      
      static final String FMT001 = "FMT001";
      
      
      //REVIST: Do we make this an object and have a set, getLocale,
      // and cache the bundle?
      
      /** This method returns the localized message */
      public static String localizeMessage(String string, Locale locale) {
          
          ResourceBundle fResourceBundle = null;
          if (locale != null)
              fResourceBundle = ListResourceBundle.getBundle("org.apache.xerces.msg.ExceptionMessages", locale);
          if (fResourceBundle == null || locale == null)
              fResourceBundle = ListResourceBundle.getBundle("org.apache.xerces.msg.ExceptionMessages");
          
          int keyIndex = string.indexOf(' ');
          String key = string.substring(0, keyIndex);
          // newline index
          int nlIndex = string.indexOf('\n');
          if (nlIndex == 0 || key == null || key.equals("")) return null; // REVIST: should never happen
   
          String msg = fResourceBundle.getString(key);
          if (nlIndex < 0) {
              return msg;
          }
         
          StringTokenizer st = new StringTokenizer(string.substring(nlIndex+1), "\t");
          int count = st.countTokens();
          String [] args = new String[count];
          for(int i=0; i < count; i++) {
              args[i] = st.nextToken();
          }
          
          if (args != null) {
              try {
                  msg = java.text.MessageFormat.format(msg, args);
              } catch (Exception e) {
                  msg = fResourceBundle.getString(FMT001)+ ": " + msg;
              }
          } 
          return msg;
      }
      
  }