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
   *
   *     http://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.ambari.server.utils;
  
  import java.util.List;
  import java.util.ListIterator;
  
  public class CustomStringUtils {
    /**
     * <code>CustomStringUtils</code> instances should NOT be constructed in
     * standard programming. Instead, the class should be used as
     * <code>CustomStringUtils.containsCaseInsensitive("foo", arrayList)</code>
     */
    public CustomStringUtils(){
      super();
    }
  
    /**
     * Returns <tt>true</tt> if this list contains the specified string element, ignoring case considerations.
     * @param s element whose presence in this list is to be tested
     * @param l list of strings, where presence of string element would be checked
     * @return <tt>true</tt> if this list contains the specified element
     */
    public static boolean containsCaseInsensitive(String s, List<String> l){
      for (String listItem : l){
        if (listItem.equalsIgnoreCase(s)){
          return true;
        }
      }
      return false;
    }
  
    /**
     * Make list of string lowercase
     * @param l list of strings, which need to be in lowercase
     */
    public static void toLowerCase(List<String> l) {
      ListIterator<String> iterator = l.listIterator();
      while (iterator.hasNext()) {
        iterator.set(iterator.next().toLowerCase());
      }
    }
  
    /**
     * Make list of string lowercase
     * @param l list of strings, which need to be in lowercase
     */
    public static void toUpperCase(List<String> l) {
      ListIterator<String> iterator = l.listIterator();
      while (iterator.hasNext()) {
        iterator.set(iterator.next().toUpperCase());
      }
    }
  }
  