package com.kidgrow.db.config;
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import com.baomidou.mybatisplus.core.parser.ISqlParser;
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import com.baomidou.mybatisplus.core.parser.ISqlParserFilter;
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import com.baomidou.mybatisplus.extension.parsers.DynamicTableNameParser;
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import com.baomidou.mybatisplus.extension.parsers.ITableNameHandler;
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import com.baomidou.mybatisplus.extension.plugins.OptimisticLockerInterceptor;
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import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
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import com.baomidou.mybatisplus.extension.plugins.pagination.optimize.JsqlParserCountOptimize;
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import com.baomidou.mybatisplus.extension.plugins.tenant.TenantHandler;
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import com.baomidou.mybatisplus.extension.plugins.tenant.TenantSqlParser;
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import com.kidgrow.common.context.DynamicTableContextHolder;
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import com.kidgrow.common.properties.TenantProperties;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.ibatis.reflection.MetaObject;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Import;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* 石家庄喜高科技有限责任公司 版权所有 © Copyright 2020<br>
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*
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* @Description: Mybatis-plus 配置<br>
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* @Project: <br>
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* @CreateDate: Created in 2020/2/4 16:05 <br>
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* @Author: <a href="4345453@kidgrow.com">liuke</a>
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*/
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@Slf4j
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@Import(DateMetaObjectHandler.class)
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public class DefaultMybatisPlusConfig {
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@Autowired
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private TenantHandler tenantHandler;
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@Autowired
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private ISqlParserFilter sqlParserFilter;
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@Autowired
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private TenantProperties tenantProperties;
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/**
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* 分页插件，自动识别数据库类型
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*/
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@Bean
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public PaginationInterceptor paginationInterceptor() {
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PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
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boolean enableTenant = tenantProperties.getEnable();
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ArrayList<ISqlParser> sqlParserList = new ArrayList<ISqlParser>();
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// log.info("多租户状态:"+enableTenant);
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//是否开启多租户隔离
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if (enableTenant) {
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TenantSqlParser tenantSqlParser = new TenantSqlParser()
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.setTenantHandler(tenantHandler);
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//动态表名解析器
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DynamicTableNameParser dynamicTableNameParser = new DynamicTableNameParser();
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Map<String, ITableNameHandler> tableNameHanderMap = new HashMap<>();
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//通过配置文件获取需要动态解析的表名
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List<String> dynamicTables = tenantProperties.getDynamicTables();
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if(dynamicTables.size()>0){
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dynamicTables.forEach(item->{
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tableNameHanderMap.put(item, new ITableNameHandler() {
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@Override
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public String dynamicTableName(MetaObject metaObject, String sql, String tableName) {
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return DynamicTableContextHolder.getDynamicTable();
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}
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});
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});
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dynamicTableNameParser.setTableNameHandlerMap(tableNameHanderMap);
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sqlParserList.add(dynamicTableNameParser);
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}
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sqlParserList.add(tenantSqlParser);
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// paginationInterceptor.setSqlParserList(CollUtil.toList(tenantSqlParser));
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paginationInterceptor.setSqlParserList(sqlParserList);
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paginationInterceptor.setSqlParserFilter(sqlParserFilter);
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}
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// 开启 count 的 join 优化,只针对部分 left join
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paginationInterceptor.setCountSqlParser(new JsqlParserCountOptimize(true));
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return paginationInterceptor;
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}
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/**
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* 乐观锁插件
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* @return
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*/
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@Bean
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public OptimisticLockerInterceptor optimisticLockerInterceptor() {
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return new OptimisticLockerInterceptor();
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}
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// Mybatis-plus 3.2.0 以上版本移除推荐使用第三方扩展 执行SQL分析打印 功能
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// https://mp.baomidou.com/guide/performance-analysis-plugin.html
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/**
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* 打印 sql，性能分析拦截器，不建议生产使用
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* 设置 dev test 环境开启
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*/
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// @Bean
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// @Profile({"dev","test"})
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// public PerformanceInterceptor performanceInterceptor() {
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// return new PerformanceInterceptor();
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// }
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}
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