DipperPosition/src/main/java/com/telpo/dipperposition/service/impl/DipperAstTimeAsyncTaskServiceImpl.java

package com.telpo.dipperposition.service.impl;

import com.telpo.dipperposition.common.HexConvert;
import com.telpo.dipperposition.common.SocketClient;
import com.telpo.dipperposition.service.IDipperAstTimeAsyncTaskService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;

/**
 * @program: DipperDataAsyncTaskServiceImpl
 * @description: 发送SDBP-AST-TIME获取时间信息
 * @author: king
 * @create: 2021-01-10 14:01
 */
@Service
@Slf4j
public class DipperAstTimeAsyncTaskServiceImpl implements IDipperAstTimeAsyncTaskService {

    @Override
    @Async("asyncServiceExecutor")
    public String pushAstTime() {

        // (1) 发送SDBP-AST-TIME
        // String sendResult = pushTimeToDipper();
        //if (sendResult == null) {
        //    log.error("取不到时间。");
        //    return null;
        //}

        // (2) 获取时间信息
        return pushTimeToDipper();
        //return sendResult;
    }

    private String pushTimeToDipper() {

        // 创建Socket客户端实例;
        // SocketClient client = new SocketClient(astServer, timeAstPort, astTimeout);

        // 时间和位置不是从服务器获取，而是本地生成(其中时间误差不超过3s)
        // 23 3E 04 02 10 00 20 E1 07 09 14 0C 22 38 00 00 00 00 00 28 6B EE 22 98
        // 23 3E 为同步头
        // 04 02 为识别码
        // 10 00 表示长度为 16
        // --日期--
        // 20 E1 表示闰秒改正数为
        // E1 07 表示年为 2017 年（十六进制 07E1 转为十进制）
        // 09 表示 9 月
        // 14 表示 20 日
        // 0C 22 38 00 00 00 00 00 表示 UTC时间,为12时34分56.0秒（小数秒建议固定为 0）
        // 00 28 6B EE 表示 4 秒的时间精度（十六进制 EE6B2800 转为十进制为 4000000000，乘以比 例因子 10-9就是 4 秒）
        // 00 2F 为校验和
        // TODO astTimeCmd 组装
        String astTimeCmd = "233E0402";
        astTimeCmd += "1000";
        astTimeCmd += "20E1";
        LocalDateTime now = LocalDateTime.now();
        int year = now.getYear();
        int month = now.getMonthValue();
        int day = now.getDayOfMonth();
        String hexYearString = Integer.toHexString(year);
        hexYearString = "0" + hexYearString;
        astTimeCmd += hexYearString.substring(2,2) + hexYearString.substring(0,2);
        String hexMonthString = Integer.toHexString(month);
        hexMonthString = "0" + hexMonthString;
        astTimeCmd += hexMonthString;
        String hexDayString = Integer.toHexString(day);
        if (day < 16) {
            hexDayString = "0" + hexDayString;
        }
        astTimeCmd += hexDayString;

        int hour = now.getHour();
        int minitor = now.getMinute();
        int second = now.getSecond();
        String hexHourString = Integer.toHexString(hour);
        if (hour < 16) {
            hexHourString = "0" + hexHourString;
        }
        astTimeCmd += hexHourString;
        String hexMinitorString = Integer.toHexString(minitor);
        if (minitor < 16) {
            hexMinitorString = "0" + hexMinitorString;
        }
        astTimeCmd += hexMinitorString;
        String hexSecondString = Integer.toHexString(second);
        if (second < 16) {
            hexSecondString = "0" + hexSecondString;
        }
        astTimeCmd += hexSecondString;
        astTimeCmd += "0000000000";
        astTimeCmd += "00286BEE";

        //String hexIn = HexConvert.convertStringToHex(astTimeCmd) + HexConvert.makeChecksum(astTimeCmd);
        String hexIn = astTimeCmd + HexConvert.makeChecksum(astTimeCmd);
        //String ackAckCheckRef = "233E0101020004020A1D";
        //String sendResult = client.sendCmd(hexIn, ackAckCheckRef);
        //client.closeConnection();

        return hexIn;
    }
}