/**
 *    Copyright ${license.git.copyrightYears} 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.type;

import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;

/**
 * @author Clinton Begin
 */
public class SimpleTypeRegistry {

  private static final Set<Class<?>> SIMPLE_TYPE_SET = new HashSet<>();

  static {
    SIMPLE_TYPE_SET.add(String.class);
    SIMPLE_TYPE_SET.add(Byte.class);
    SIMPLE_TYPE_SET.add(Short.class);
    SIMPLE_TYPE_SET.add(Character.class);
    SIMPLE_TYPE_SET.add(Integer.class);
    SIMPLE_TYPE_SET.add(Long.class);
    SIMPLE_TYPE_SET.add(Float.class);
    SIMPLE_TYPE_SET.add(Double.class);
    SIMPLE_TYPE_SET.add(Boolean.class);
    SIMPLE_TYPE_SET.add(Date.class);
    SIMPLE_TYPE_SET.add(Class.class);
    SIMPLE_TYPE_SET.add(BigInteger.class);
    SIMPLE_TYPE_SET.add(BigDecimal.class);
  }

  private SimpleTypeRegistry() {
    // Prevent Instantiation
  }

  /*
   * Tells us if the class passed in is a known common type
   *
   * @param clazz The class to check
   * @return True if the class is known
   */
  public static boolean isSimpleType(Class<?> clazz) {
    return SIMPLE_TYPE_SET.contains(clazz);
  }

}
