/*
    *    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.type;
  
  import java.sql.CallableStatement;
  import java.sql.PreparedStatement;
  import java.sql.ResultSet;
  import java.sql.SQLException;
  import java.sql.SQLXML;
  
  /**
   * Convert <code>String</code> to/from <code>SQLXML</code>.
   *
   * @since 3.5.0
   * @author Iwao AVE!
   */
  public class SqlxmlTypeHandler extends BaseTypeHandler<String> {
  
    @Override
    public void setNonNullParameter(PreparedStatement ps, int i, String parameter, JdbcType jdbcType)
        throws SQLException {
      SQLXML sqlxml = ps.getConnection().createSQLXML();
      try {
        sqlxml.setString(parameter);
        ps.setSQLXML(i, sqlxml);
      } finally {
        sqlxml.free();
      }
    }
  
    @Override
    public String getNullableResult(ResultSet rs, String columnName) throws SQLException {
      return sqlxmlToString(rs.getSQLXML(columnName));
    }
  
    @Override
    public String getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
      return sqlxmlToString(rs.getSQLXML(columnIndex));
    }
  
    @Override
    public String getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
      return sqlxmlToString(cs.getSQLXML(columnIndex));
    }
  
    protected String sqlxmlToString(SQLXML sqlxml) throws SQLException {
      if (sqlxml == null) {
        return null;
      }
      try {
        return sqlxml.getString();
      } finally {
        sqlxml.free();
      }
    }
  
  }