001/*
002 *  Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
003 *  <p>
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *  <p>
008 *  http://www.apache.org/licenses/LICENSE-2.0
009 *  <p>
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package com.mybatisflex.core.mybatis;
017
018import com.mybatisflex.core.row.Row;
019import com.mybatisflex.core.table.TableInfo;
020import com.mybatisflex.core.table.TableInfoFactory;
021import com.mybatisflex.core.util.StringUtil;
022import org.apache.ibatis.reflection.MetaObject;
023import org.apache.ibatis.reflection.property.PropertyTokenizer;
024import org.apache.ibatis.reflection.wrapper.BeanWrapper;
025import org.apache.ibatis.reflection.wrapper.MapWrapper;
026import org.apache.ibatis.reflection.wrapper.ObjectWrapper;
027import org.apache.ibatis.reflection.wrapper.ObjectWrapperFactory;
028
029import java.util.Collection;
030import java.util.Map;
031
032/**
033 * @author michael
034 */
035public class FlexWrapperFactory implements ObjectWrapperFactory {
036
037    @Override
038    public boolean hasWrapperFor(Object object) {
039        Class<?> objectClass = object.getClass();
040        if (Collection.class.isAssignableFrom(objectClass)) {
041            return false;
042        } else if (Map.class.isAssignableFrom(objectClass)) {
043            return true;
044        }
045        return TableInfoFactory.ofEntityClass(objectClass) != null;
046    }
047
048    @SuppressWarnings("unchecked")
049    @Override
050    public ObjectWrapper getWrapperFor(MetaObject metaObject, Object object) {
051        if (Map.class.isAssignableFrom(object.getClass())) {
052            if (object.getClass() == Row.class){
053                //取消 row 的 user_name 转换为 userName，否则再次保存时无法进行保存
054                //https://github.com/mybatis-flex/mybatis-flex/issues/244
055                return new MapWrapper(metaObject, (Map<String, Object>) object);
056            }
057            return new FlexMapWrapper(metaObject, (Map<String, Object>) object);
058        } else {
059            return new FlexBeanWrapper(metaObject, object);
060        }
061    }
062
063    static class FlexBeanWrapper extends BeanWrapper {
064
065        private final Object entity;
066        private final TableInfo tableInfo;
067
068        public FlexBeanWrapper(MetaObject metaObject, Object object) {
069            super(metaObject, object);
070            this.entity = object;
071            this.tableInfo = TableInfoFactory.ofEntityClass(object.getClass());
072        }
073
074        @Override
075        public void set(PropertyTokenizer prop, Object value) {
076            Object v = tableInfo.invokeOnSetListener(entity, prop.getName(), value);
077            super.set(prop, v);
078        }
079    }
080
081
082    static class FlexMapWrapper extends MapWrapper {
083
084        public FlexMapWrapper(MetaObject metaObject, Map<String, Object> map) {
085            super(metaObject, map);
086        }
087
088        @Override
089        public String findProperty(String name, boolean useCamelCaseMapping) {
090            return useCamelCaseMapping && (Character.isUpperCase(name.charAt(0)) || name.contains("_")) ? StringUtil.underlineToCamel(name) : name;
091        }
092    }
093
094}