/*
    *    Copyright 2009-2021 the original author or authors.
    *
    *    Licensed 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.ibatis.reflection.property;
  
  import java.util.Locale;
  
  import org.apache.ibatis.reflection.ReflectionException;
  
  /**
   * @author Clinton Begin
   */
  public final class PropertyNamer {
  
    private PropertyNamer() {
      // Prevent Instantiation of Static Class
    }
  
    public static String methodToProperty(String name) {
      if (name.startsWith("is")) {
        name = name.substring(2);
      } else if (name.startsWith("get") || name.startsWith("set")) {
        name = name.substring(3);
      } else {
        throw new ReflectionException("Error parsing property name '" + name + "'.  Didn't start with 'is', 'get' or 'set'.");
      }
  
      if (name.length() == 1 || (name.length() > 1 && !Character.isUpperCase(name.charAt(1)))) {
        name = name.substring(0, 1).toLowerCase(Locale.ENGLISH) + name.substring(1);
      }
  
      return name;
    }
  
    public static boolean isProperty(String name) {
      return isGetter(name) || isSetter(name);
    }
  
    public static boolean isGetter(String name) {
      return (name.startsWith("get") && name.length() > 3) || (name.startsWith("is") && name.length() > 2);
    }
  
    public static boolean isSetter(String name) {
      return name.startsWith("set") && name.length() > 3;
    }
  
  }