/*
    * Copyright 2012 The Netty Project
    *
    * The Netty Project 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.jboss.netty.util.internal;
  
  import java.io.Serializable;
  import java.util.Comparator;
  
  public final class CaseIgnoringComparator implements Comparator<String>, Serializable {
  
      private static final long serialVersionUID = 4582133183775373862L;
  
      public static final CaseIgnoringComparator INSTANCE = new CaseIgnoringComparator();
  
      private CaseIgnoringComparator() {
      }
  
      public int compare(String o1, String o2) {
          return o1.compareToIgnoreCase(o2);
      }
  
      @SuppressWarnings("MethodMayBeStatic")
      private Object readResolve() {
          return INSTANCE;
      }
  }