/*
    *    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.Timestamp;
  import java.time.Instant;
  
  /**
   * @since 3.4.5
   * @author Tomas Rohovsky
   */
  public class InstantTypeHandler extends BaseTypeHandler<Instant> {
  
    @Override
    public void setNonNullParameter(PreparedStatement ps, int i, Instant parameter, JdbcType jdbcType) throws SQLException {
      ps.setTimestamp(i, Timestamp.from(parameter));
    }
  
    @Override
    public Instant getNullableResult(ResultSet rs, String columnName) throws SQLException {
      Timestamp timestamp = rs.getTimestamp(columnName);
      return getInstant(timestamp);
    }
  
    @Override
    public Instant getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
      Timestamp timestamp = rs.getTimestamp(columnIndex);
      return getInstant(timestamp);
    }
  
    @Override
    public Instant getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
      Timestamp timestamp = cs.getTimestamp(columnIndex);
      return getInstant(timestamp);
    }
  
    private static Instant getInstant(Timestamp timestamp) {
      if (timestamp != null) {
        return timestamp.toInstant();
      }
      return null;
    }
  }