content: /*
   *    Licensed to the Apache Software Foundation (ASF) under one
   *    or more contributor license agreements.  See the NOTICE file
   *    distributed with this work for additional information
   *    regarding copyright ownership.  The ASF licenses this file
   *    to you under the Apache License, Version 2.0 (the
   *    "License"); you may not use this file except in compliance
   *    with the License.  You may obtain a copy of the License at
   *
   *      https://www.apache.org/licenses/LICENSE-2.0
   *
   *    Unless required by applicable law or agreed to in writing,
   *    software distributed under the License is distributed on an
   *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   *    KIND, either express or implied.  See the License for the
   *    specific language governing permissions and limitations
   *    under the License.
   */
  package org.apache.cayenne.dbsync.naming;
  
  import org.apache.cayenne.util.Util;
  
  /**
   * @since 4.0
   */
  final class NameUtil {
  
      private static String prepare(String string, boolean capitalize){
          if (Util.isEmptyString(string)) {
              return string;
          }
  
          final char firstChar = string.charAt(0);
          final char newChar = capitalize ? Character.toTitleCase(firstChar) : Character.toLowerCase(firstChar);
          if (firstChar == newChar) {
              // already capitalized
              return string;
          }
  
          int len = string.length();
          char[] newChars = new char[len];
          newChars[0] = newChar;
          string.getChars(1, len, newChars, 1);
  
          return String.valueOf(newChars);
      }
  
      static String uncapitalize(String string) {
          return prepare(string,false);
      }
  
      static String capitalize(String string) {
          return prepare(string,true);
      }
  
  }
  