/*
    * 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.exchange;
  
  import com.ibatis.sqlmap.engine.type.DomTypeMarker;
  import com.ibatis.sqlmap.engine.type.TypeHandlerFactory;
  
  import java.util.List;
  import java.util.Map;
  
  /**
   * Factory for DataExchange objects.
   */
  public class DataExchangeFactory {
  
    /** The dom data exchange. */
    private final DataExchange domDataExchange;
  
    /** The list data exchange. */
    private final DataExchange listDataExchange;
  
    /** The map data exchange. */
    private final DataExchange mapDataExchange;
  
    /** The primitive data exchange. */
    private final DataExchange primitiveDataExchange;
  
    /** The complex data exchange. */
    private final DataExchange complexDataExchange;
  
    /** The type handler factory. */
    private TypeHandlerFactory typeHandlerFactory;
  
    /**
     * Constructor for the factory.
     *
     * @param typeHandlerFactory
     *          - a type handler factory for the factory
     */
    public DataExchangeFactory(TypeHandlerFactory typeHandlerFactory) {
      this.typeHandlerFactory = typeHandlerFactory;
      domDataExchange = new DomDataExchange(this);
      listDataExchange = new ListDataExchange(this);
      mapDataExchange = new ComplexDataExchange(this);
      primitiveDataExchange = new PrimitiveDataExchange(this);
      complexDataExchange = new ComplexDataExchange(this);
    }
  
    /**
     * Getter for the type handler factory.
     *
     * @return - the type handler factory
     */
    public TypeHandlerFactory getTypeHandlerFactory() {
      return typeHandlerFactory;
    }
  
    /**
     * Get a DataExchange object for the passed in Class.
     *
     * @param clazz
     *          - the class to get a DataExchange object for
     *
     * @return - the DataExchange object
     */
    public DataExchange getDataExchangeForClass(Class clazz) {
      DataExchange dataExchange = null;
      if (clazz == null) {
        dataExchange = complexDataExchange;
      } else if (DomTypeMarker.class.isAssignableFrom(clazz)) {
        dataExchange = domDataExchange;
      } else if (List.class.isAssignableFrom(clazz)) {
        dataExchange = listDataExchange;
      } else if (Map.class.isAssignableFrom(clazz)) {
        dataExchange = mapDataExchange;
      } else if (typeHandlerFactory.getTypeHandler(clazz) != null) {
        dataExchange = primitiveDataExchange;
      } else {
        dataExchange = new JavaBeanDataExchange(this);
      }
      return dataExchange;
    }
  
  }