定时任务

由于当时缓存服务链路比较长，所以canal挂了，可能会有日志丢失导致部分数据没能同步，考虑在kafka
增加定时全量同步方法，不用每次服务启动都重新刷一次数据，使用的是每天3点定时刷接口。

package com.xiniaoyun.shared.kafka.common.timer;

import com.xiniaoyun.shared.kafka.sys.dto.InitDTO;
import com.xiniaoyun.shared.kafka.sys.web.DataSynController;
import org.apache.commons.lang3.concurrent.BasicThreadFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
import org.springframework.stereotype.Component;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

/**
 * @Author liumingzhe
 * @create 2020/10/27
 */
@Component
public class FullTimer implements ApplicationRunner {
    @Autowired
    DataSynController dataSynController;
    @Override
    public void run(ApplicationArguments args) throws Exception {
        timet();
    }

    private void timet() {
        ScheduledExecutorService executor =  new ScheduledThreadPoolExecutor(1,
                new BasicThreadFactory.Builder().namingPattern("example-schedule-pool-%d").daemon(true).build());
        long oneDay = 24 * 60 * 60 * 1000;
        long initDelay  = getTimeMillis("03:00:00") - System.currentTimeMillis();
        initDelay = initDelay >= 0 ? initDelay : oneDay + initDelay;

        executor.scheduleAtFixedRate(
                new EchoServer(),
                initDelay,
                oneDay,
                TimeUnit.MILLISECONDS);
    }

    /**
     * 获取指定时间对应的毫秒数
     * @param time "HH:mm:ss"
     * @return
     */
    private static long getTimeMillis(String time) {
        try {
            DateFormat dateFormat = new SimpleDateFormat("yy-MM-dd HH:mm:ss");
            DateFormat dayFormat = new SimpleDateFormat("yy-MM-dd");
            Date curDate = dateFormat.parse(dayFormat.format(new Date()) + " " + time);
            return curDate.getTime();
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return 0;
    }

    class EchoServer implements Runnable {
        @Override
        public void run() {
            try {
                InitDTO initDTO = new InitDTO();
                dataSynController.init(initDTO);
            } catch (Exception e){
                e.printStackTrace();
            }
        }
    }
}