package top.cmnbgy.springbootibatismulidatasource.dataSource;

import com.alibaba.druid.pool.DruidDataSource;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.mybatis.spring.annotation.MapperScan;
 
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
 
import org.springframework.context.annotation.Primary;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;

import javax.sql.DataSource;
import java.io.IOException;

/**
 * 主資料來源配置
 * @ClassName MasterDataSource
 * @Cescription TODO
 * @Author .朱孝輝
 * @Blog 
 
http://www.cmnbgy.top
 * @Datae 2018/11/14 0014 13:45
 **/
@Configuration
// basePackages ：設定為你的 mapper（主資料來源）介面路徑
@MapperScan(basePackages = "top.cmnbgy.springbootibatismulidatasource.mapper.master", sqlSessionTemplateRef  = "master-SqlSessionTemplate")
// ConfigurationProperties：讀取application檔案
@ConfigurationProperties(prefix = "spring.datasource.master")
public class MasterDataSource {

    private String url;
      private String username;
    private String password;
    private String driverClassName;

    /* ....... 忽略其他配置引數*/
    public String getDriverClassName() {
        return driverClassName;
    }

    public void setDriverClassName(String driverClassName) {
        this.driverClassName = driverClassName;
    }

    public String getUrl() {
        return url;
    }

    public void setUrl(String url) {
        this.url = url;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }


    /**
     * 建立主資料來源
     * @return
     */
    @Bean(name = "master-DataSource")
    @Primary
   // @ConfigurationProperties(prefix = "spring.datasource.master")
    public DataSource testDataSource() {
        /**
         *  @Bean：建立bean元件，可設定bean的name，如果不寫name預設為方法名
         *  @Primary：設定為優先注入，如果Bean型別有多個，設定@Primary後會將該Bean優先注入，否則會報錯
         *  @ConfigurationProperties：讀取application.properties 屬性封裝成實體類
         *
         *  DataSourceBuilder.create().build() ：SpringBoot為我們提供了簡便的建立資料來源方式
         */
        DruidDataSource dataSource = new DruidDataSource();
        dataSource.setUrl(url);
        dataSource.setUsername(username);
        dataSource.setPassword(password);
        dataSource.setDriverClassName(driverClassName);
        return dataSource;
    }

    /**
     *      建立SqlSession工廠
     */
    @Primary
    @Bean(name = "master-SqlSessionFactory")
    public SqlSessionFactory testSqlSessionFactory(@Qualifier("master-DataSource") DataSource dataSource) throws Exception {
        /**
         * @Qualifier：正常情況下，注入bean時，如果存在多個資源，就會出錯，可以用@Qualifier指定名字
         */
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(dataSource);
        bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/master/*/*.xml"));
        return bean.getObject();
    }

    /**
     *  事務管理
     */
    @Primary
    @Bean(name="master-TransactionManager")
    public DataSourceTransactionManager masterTransactionManager(@Qualifier("master-DataSource") DataSource dataSource){
        DataSourceTransactionManager dataSourceTransactionManager = new DataSourceTransactionManager(dataSource);
        return dataSourceTransactionManager;
    }

    /**
     *  配置sqlsession模板
     */
    @Primary
    @Bean("master-SqlSessionTemplate")
    public SqlSessionTemplate masterSQLSessionTemplate(@Qualifier("master-SqlSessionFactory") SqlSessionFactory sqlSessionFactory){
        return new SqlSessionTemplate(sqlSessionFactory);
    }

}