package com.bcxin.bi.config.properties;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.util.JdbcConstants;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

import java.sql.SQLException;

/**
 * <p>数据库数据源配置</p>
 * <p>说明:这个类中包含了许多默认配置,若这些配置符合您的情况,您可以不用管,若不符合,建议不要修改本类,建议直接在"application.yml"中配置即可</p>
 */
@Component
@ConfigurationProperties(prefix = "bi.datasource")
@Data
public class DruidProperties {

    private String url;

    private String username;

    private String password;

    private String driverClassName = "com.mysql.cj.jdbc.Driver";

    private Integer initialSize = 10;

    private Integer minIdle = 3;

    private Integer maxActive = 60;

    private Integer maxWait = 60000;

    private Boolean removeAbandoned = true;

    private Integer removeAbandonedTimeout = 180;

    private Integer timeBetweenEvictionRunsMillis = 60000;

    private Integer minEvictableIdleTimeMillis = 300000;

    private String validationQuery = "SELECT 'x'";

    private Boolean testWhileIdle = true;

    private Boolean testOnBorrow = false;

    private Boolean testOnReturn = false;

    private Boolean poolPreparedStatements = true;

    private Integer maxPoolPreparedStatementPerConnectionSize = 50;

    private String filters = "stat";

    public void config(DruidDataSource dataSource) {
        dataSource.setDbType(JdbcConstants.MYSQL);
        dataSource.setUrl(url);
        dataSource.setUsername(username);
        dataSource.setPassword(password);
        dataSource.setDriverClassName(driverClassName);
        dataSource.setInitialSize(initialSize);     // 定义初始连接数
        dataSource.setMinIdle(minIdle);             // 最小空闲
        dataSource.setMaxActive(maxActive);         // 定义最大连接数
        dataSource.setMaxWait(maxWait);             // 获取连接等待超时的时间
        dataSource.setRemoveAbandoned(removeAbandoned); // 超过时间限制是否回收
        dataSource.setRemoveAbandonedTimeout(removeAbandonedTimeout); // 超过时间限制多长

        // 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
        dataSource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
        // 配置一个连接在池中最小生存的时间，单位是毫秒
        dataSource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
        // 用来检测连接是否有效的sql，要求是一个查询语句
        dataSource.setValidationQuery(validationQuery);
        // 申请连接的时候检测
        dataSource.setTestWhileIdle(testWhileIdle);
        // 申请连接时执行validationQuery检测连接是否有效，配置为true会降低性能
        dataSource.setTestOnBorrow(testOnBorrow);
        // 归还连接时执行validationQuery检测连接是否有效，配置为true会降低性能
        dataSource.setTestOnReturn(testOnReturn);
        // 打开PSCache，并且指定每个连接上PSCache的大小
        dataSource.setPoolPreparedStatements(poolPreparedStatements);
        dataSource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);
        // 属性类型是字符串，通过别名的方式配置扩展插件，常用的插件有：
        // 监控统计用的filter:stat
        // 日志用的filter:log4j
        // 防御SQL注入的filter:wall
        try {
            dataSource.setFilters(filters);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}