package com.cainiao.aeye.chdir.manager.tddl.Handler; import com.cainiao.aeye.chdir.core.enums.AudioFormatEnum; import org.apache.commons.lang3.StringUtils; import org.apache.ibatis.type.BaseTypeHandler; import org.apache.ibatis.type.JdbcType; import java.sql.CallableStatement; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; /**  * @Auther:wb-fem407232  */ public class EnumAudioFormatHandler extends BaseTypeHandler
    
      {
      private final AudioFormatEnum[] enums;     private Class
     
       type;     /**      * 设置配置文件设置的转换类以及枚举类内容，供其他方法更便捷高效的实现      *      * @param type 配置文件中设置的转换类      */     public EnumAudioFormatHandler(Class
      
        type) {
          if (type == null) {
              throw new IllegalArgumentException("Type argument cannot be null");         }         this.type = type;         this.enums = type.getEnumConstants();         if (this.enums == null) {
              throw new IllegalArgumentException(type.getSimpleName()                     + " does not represent an enum type.");         }     }     @Override     public void setNonNullParameter(PreparedStatement preparedStatement, int i, AudioFormatEnum audioFormatEnum, JdbcType jdbcType) throws SQLException {
          preparedStatement.setString(i, audioFormatEnum.name());     }     @Override     public AudioFormatEnum getNullableResult(ResultSet resultSet, String s) throws SQLException {
          String name = resultSet.getString(s);         if (resultSet.wasNull()) {
              return null;         } else {
              return locateEnumStatus(name);         }     }     @Override     public AudioFormatEnum getNullableResult(ResultSet resultSet, int i) throws SQLException {
          String name = resultSet.getString(i);         if (resultSet.wasNull()) {
              return null;         } else {
              return locateEnumStatus(name);         }     }     @Override     public AudioFormatEnum getNullableResult(CallableStatement callableStatement, int i) throws SQLException {
          String name = callableStatement.getString(i);         if (callableStatement.wasNull()) {
              return null;         } else {
              return locateEnumStatus(name);         }     }     /**      * 枚举类型转换，由于构造函数获取了枚举的子类enums，让遍历更加高效快捷      *      * @param name 数据库中存储的自定义code属性      * @return code对应的枚举类      */     private AudioFormatEnum locateEnumStatus(String name) {
          if(StringUtils.isBlank(name)){
              return null;         }         for (AudioFormatEnum status : enums) {
              if (status.name().equals(name)) {
                  return status;             }         }         throw new IllegalArgumentException("未知的枚举类型：" + name + ",请核对" + type.getSimpleName());     } }