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.dinky.mybatis.crypto;
  
  import org.dinky.context.SpringContextUtils;
  import org.dinky.crypto.CryptoComponent;
  
  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;
  
  public class CryptoTypeHandler extends BaseTypeHandler<String> {
  
      private final CryptoComponent cryptoComponent;
  
      public CryptoTypeHandler() {
          cryptoComponent = SpringContextUtils.getBeanByClass(CryptoComponent.class);
      }
  
      @Override
      public void setNonNullParameter(PreparedStatement ps, int i, String parameter, JdbcType jdbcType)
              throws SQLException {
          ps.setString(i, encryptText(parameter));
      }
  
      @Override
      public String getNullableResult(ResultSet rs, String columnName) throws SQLException {
          return decryptText(rs.getString(columnName));
      }
  
      @Override
      public String getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
          return decryptText(rs.getString(columnIndex));
      }
  
      @Override
      public String getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
          return decryptText(cs.getString(columnIndex));
      }
  
      private String encryptText(String result) {
          return cryptoComponent.encryptText(result);
      }
  
      private String decryptText(String result) {
          return cryptoComponent.decryptText(result);
      }
  }
  