/*
    * Copyright 2004-2022 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
    *
    *    https://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 com.ibatis.sqlmap.engine.type;
  
  import java.sql.CallableStatement;
  import java.sql.PreparedStatement;
  import java.sql.ResultSet;
  import java.sql.SQLException;
  
  /**
   * Implementation of TypeHandler for dealing with unknown types.
   */
  public class UnknownTypeHandler extends BaseTypeHandler implements TypeHandler {
  
    /** The factory. */
    private TypeHandlerFactory factory;
  
    /**
     * Constructor to create via a factory.
     *
     * @param factory
     *          - the factory to associate this with
     */
    public UnknownTypeHandler(TypeHandlerFactory factory) {
      this.factory = factory;
    }
  
    public void setParameter(PreparedStatement ps, int i, Object parameter, String jdbcType) throws SQLException {
      Class searchClass = parameter.getClass();
      if (searchClass == null) {
        searchClass = parameter.getClass();
      }
      TypeHandler handler = factory.getTypeHandler(searchClass, jdbcType);
      handler.setParameter(ps, i, parameter, jdbcType);
    }
  
    public Object getResult(ResultSet rs, String columnName) throws SQLException {
      Object object = rs.getObject(columnName);
      if (rs.wasNull()) {
        return null;
      } else {
        return object;
      }
    }
  
    public Object getResult(ResultSet rs, int columnIndex) throws SQLException {
      Object object = rs.getObject(columnIndex);
      if (rs.wasNull()) {
        return null;
      } else {
        return object;
      }
    }
  
    public Object getResult(CallableStatement cs, int columnIndex) throws SQLException {
      Object object = cs.getObject(columnIndex);
      if (cs.wasNull()) {
        return null;
      } else {
        return object;
      }
    }
  
    public Object valueOf(String s) {
      return s;
    }
  
    @Override
    public boolean equals(Object object, String string) {
      if (object == null || string == null) {
        return object == string;
      } else {
        TypeHandler handler = factory.getTypeHandler(object.getClass());
        Object castedObject = handler.valueOf(string);
        return object.equals(castedObject);
      }
    }
  
  }