package com.dji.sample.wayline.service.impl;
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import com.dji.sample.common.error.CommonErrorEnum;
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import com.dji.sample.common.model.ResponseResult;
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import com.dji.sample.component.mqtt.model.*;
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import com.dji.sample.component.mqtt.service.IMessageSenderService;
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import com.dji.sample.component.redis.RedisConst;
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import com.dji.sample.component.redis.RedisOpsUtils;
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import com.dji.sample.component.websocket.model.BizCodeEnum;
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import com.dji.sample.component.websocket.service.ISendMessageService;
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import com.dji.sample.manage.model.dto.DeviceDTO;
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import com.dji.sample.manage.model.enums.UserTypeEnum;
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import com.dji.sample.manage.service.IDeviceRedisService;
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import com.dji.sample.media.model.MediaFileCountDTO;
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import com.dji.sample.wayline.model.dto.ConditionalWaylineJobKey;
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import com.dji.sample.wayline.model.dto.WaylineJobDTO;
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import com.dji.sample.wayline.model.dto.WaylineTaskProgressReceiver;
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import com.dji.sample.wayline.model.enums.WaylineJobStatusEnum;
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import com.dji.sample.wayline.service.IFlightTaskService;
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import com.dji.sample.wayline.service.IWaylineJobService;
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import com.dji.sample.wayline.service.IWaylineRedisService;
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import com.fasterxml.jackson.core.type.TypeReference;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.http.HttpStatus;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.integration.annotation.ServiceActivator;
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import org.springframework.integration.mqtt.support.MqttHeaders;
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import org.springframework.messaging.MessageHeaders;
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import org.springframework.scheduling.annotation.Scheduled;
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import org.springframework.stereotype.Service;
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import org.springframework.util.StringUtils;
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import java.time.LocalDateTime;
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import java.time.ZoneId;
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import java.util.*;
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import java.util.concurrent.TimeUnit;
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/**
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* @author sean
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* @version 1.1
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* @date 2022/6/9
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*/
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@Service
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@Slf4j
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public class FlightTaskServiceImpl implements IFlightTaskService {
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@Autowired
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private IMessageSenderService messageSender;
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@Autowired
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private ObjectMapper mapper;
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@Autowired
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private ISendMessageService websocketMessageService;
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@Autowired
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private IWaylineJobService waylineJobService;
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@Autowired
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private IDeviceRedisService deviceRedisService;
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@Autowired
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private IWaylineRedisService waylineRedisService;
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/**
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* Handle the progress messages of the flight tasks reported by the dock.
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* @param receiver
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* @param headers
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*/
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@ServiceActivator(inputChannel = ChannelName.INBOUND_EVENTS_FLIGHT_TASK_PROGRESS, outputChannel = ChannelName.OUTBOUND_EVENTS)
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public CommonTopicReceiver handleProgress(CommonTopicReceiver receiver, MessageHeaders headers) {
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String receivedTopic = String.valueOf(headers.get(MqttHeaders.RECEIVED_TOPIC));
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String dockSn = receivedTopic.substring((TopicConst.THING_MODEL_PRE + TopicConst.PRODUCT).length(),
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receivedTopic.indexOf(TopicConst.EVENTS_SUF));
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EventsReceiver<WaylineTaskProgressReceiver> eventsReceiver = mapper.convertValue(receiver.getData(),
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new TypeReference<EventsReceiver<WaylineTaskProgressReceiver>>(){});
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eventsReceiver.setBid(receiver.getBid());
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eventsReceiver.setSn(receiver.getGateway());
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WaylineTaskProgressReceiver output = eventsReceiver.getOutput();
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log.info("Task progress: {}", output.getProgress().toString());
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if (eventsReceiver.getResult() != ResponseResult.CODE_SUCCESS) {
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log.error("Task progress ===> Error code: " + eventsReceiver.getResult());
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}
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EventsResultStatusEnum statusEnum = EventsResultStatusEnum.find(output.getStatus());
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waylineRedisService.setRunningWaylineJob(dockSn, eventsReceiver);
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if (statusEnum.getEnd()) {
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WaylineJobDTO job = WaylineJobDTO.builder()
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.jobId(receiver.getBid())
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.status(WaylineJobStatusEnum.SUCCESS.getVal())
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.completedTime(LocalDateTime.now())
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.mediaCount(output.getExt().getMediaCount())
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.build();
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// record the update of the media count.
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if (Objects.nonNull(job.getMediaCount()) && job.getMediaCount() != 0) {
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RedisOpsUtils.hashSet(RedisConst.MEDIA_FILE_PREFIX + receiver.getGateway(), job.getJobId(),
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MediaFileCountDTO.builder().jobId(receiver.getBid()).mediaCount(job.getMediaCount()).uploadedCount(0).build());
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}
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if (EventsResultStatusEnum.OK != statusEnum) {
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job.setCode(eventsReceiver.getResult());
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job.setStatus(WaylineJobStatusEnum.FAILED.getVal());
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}
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waylineJobService.updateJob(job);
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waylineRedisService.delRunningWaylineJob(dockSn);
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waylineRedisService.delPausedWaylineJob(receiver.getBid());
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}
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Optional<DeviceDTO> deviceOpt = deviceRedisService.getDeviceOnline(receiver.getGateway());
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if (deviceOpt.isEmpty()) {
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return null;
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}
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websocketMessageService.sendBatch(deviceOpt.get().getWorkspaceId(), UserTypeEnum.WEB.getVal(),
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BizCodeEnum.FLIGHT_TASK_PROGRESS.getCode(), eventsReceiver);
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return receiver;
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}
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/**
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* Notifications will be received through this interface when tasks are ready on the device.
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* @param receiver
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* @param headers
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*/
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@ServiceActivator(inputChannel = ChannelName.INBOUND_EVENTS_FLIGHT_TASK_READY, outputChannel = ChannelName.OUTBOUND_EVENTS)
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public CommonTopicReceiver handleTaskNotifications(CommonTopicReceiver receiver, MessageHeaders headers) {
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String receivedTopic = String.valueOf(headers.get(MqttHeaders.RECEIVED_TOPIC));
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String dockSn = receivedTopic.substring((TopicConst.THING_MODEL_PRE + TopicConst.PRODUCT).length(),
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receivedTopic.indexOf(TopicConst.EVENTS_SUF));
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List<String> flightIds = mapper.convertValue(receiver.getData(),
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new TypeReference<Map<String, List<String>>>(){}).get(MapKeyConst.FLIGHT_IDS);
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log.info("ready task list：{}", Arrays.toString(flightIds.toArray()) );
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// Check conditional task blocking status.
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String blockedId = waylineRedisService.getBlockedWaylineJobId(dockSn);
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if (!StringUtils.hasText(blockedId)) {
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return null;
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}
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Optional<DeviceDTO> deviceOpt = deviceRedisService.getDeviceOnline(dockSn);
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if (deviceOpt.isEmpty()) {
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return null;
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}
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DeviceDTO device = deviceOpt.get();
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try {
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for (String jobId : flightIds) {
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boolean isExecute = waylineJobService.executeFlightTask(device.getWorkspaceId(), jobId);
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if (!isExecute) {
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return null;
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}
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Optional<WaylineJobDTO> waylineJobOpt = waylineRedisService.getConditionalWaylineJob(jobId);
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if (waylineJobOpt.isEmpty()) {
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log.info("The conditional job has expired and will no longer be executed.");
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return receiver;
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}
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WaylineJobDTO waylineJob = waylineJobOpt.get();
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this.retryPrepareJob(new ConditionalWaylineJobKey(device.getWorkspaceId(), dockSn, jobId), waylineJob);
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return receiver;
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}
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} catch (Exception e) {
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log.error("Failed to execute conditional task.");
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e.printStackTrace();
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}
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return receiver;
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}
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@Scheduled(initialDelay = 10, fixedRate = 5, timeUnit = TimeUnit.SECONDS)
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private void checkScheduledJob() {
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Object jobIdValue = RedisOpsUtils.zGetMin(RedisConst.WAYLINE_JOB_TIMED_EXECUTE);
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if (Objects.isNull(jobIdValue)) {
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return;
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}
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log.info("Check the timed tasks of the wayline. {}", jobIdValue);
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// format: {workspace_id}:{dock_sn}:{job_id}
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String[] jobArr = String.valueOf(jobIdValue).split(RedisConst.DELIMITER);
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double time = RedisOpsUtils.zScore(RedisConst.WAYLINE_JOB_TIMED_EXECUTE, jobIdValue);
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long now = System.currentTimeMillis();
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int offset = 30_000;
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// Expired tasks are deleted directly.
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if (time < now - offset) {
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RedisOpsUtils.zRemove(RedisConst.WAYLINE_JOB_TIMED_EXECUTE, jobIdValue);
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waylineJobService.updateJob(WaylineJobDTO.builder()
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.jobId(jobArr[2])
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.status(WaylineJobStatusEnum.FAILED.getVal())
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.executeTime(LocalDateTime.now())
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.completedTime(LocalDateTime.now())
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.code(HttpStatus.SC_REQUEST_TIMEOUT).build());
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return;
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}
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if (now <= time && time <= now + offset) {
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try {
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waylineJobService.executeFlightTask(jobArr[0], jobArr[2]);
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} catch (Exception e) {
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log.info("The scheduled task delivery failed.");
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waylineJobService.updateJob(WaylineJobDTO.builder()
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.jobId(jobArr[2])
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.status(WaylineJobStatusEnum.FAILED.getVal())
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.executeTime(LocalDateTime.now())
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.completedTime(LocalDateTime.now())
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.code(HttpStatus.SC_INTERNAL_SERVER_ERROR).build());
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} finally {
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RedisOpsUtils.zRemove(RedisConst.WAYLINE_JOB_TIMED_EXECUTE, jobIdValue);
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}
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}
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}
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@Scheduled(initialDelay = 10, fixedRate = 5, timeUnit = TimeUnit.SECONDS)
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private void prepareConditionJob() {
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Optional<ConditionalWaylineJobKey> jobKeyOpt = waylineRedisService.getNearestConditionalWaylineJob();
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if (jobKeyOpt.isEmpty()) {
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return;
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}
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ConditionalWaylineJobKey jobKey = jobKeyOpt.get();
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log.info("Check the conditional tasks of the wayline. {}", jobKey.toString());
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// format: {workspace_id}:{dock_sn}:{job_id}
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double time = waylineRedisService.getConditionalWaylineJobTime(jobKey);
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long now = System.currentTimeMillis();
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// prepare the task one day in advance.
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int offset = 86_400_000;
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if (now + offset < time) {
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return;
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}
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WaylineJobDTO job = WaylineJobDTO.builder()
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.jobId(jobKey.getJobId())
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.status(WaylineJobStatusEnum.FAILED.getVal())
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.executeTime(LocalDateTime.now())
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.completedTime(LocalDateTime.now())
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.code(HttpStatus.SC_INTERNAL_SERVER_ERROR).build();
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try {
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Optional<WaylineJobDTO> waylineJobOpt = waylineRedisService.getConditionalWaylineJob(jobKey.getJobId());
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if (waylineJobOpt.isEmpty()) {
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job.setCode(CommonErrorEnum.REDIS_DATA_NOT_FOUND.getErrorCode());
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waylineJobService.updateJob(job);
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waylineRedisService.removePrepareConditionalWaylineJob(jobKey);
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return;
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}
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WaylineJobDTO waylineJob = waylineJobOpt.get();
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ResponseResult result = waylineJobService.publishOneFlightTask(waylineJob);
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waylineRedisService.removePrepareConditionalWaylineJob(jobKey);
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if (ResponseResult.CODE_SUCCESS == result.getCode()) {
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return;
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}
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// If the end time is exceeded, no more retries will be made.
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waylineRedisService.delConditionalWaylineJob(jobKey.getJobId());
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if (waylineJob.getEndTime().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli() - RedisConst.WAYLINE_JOB_BLOCK_TIME * 1000 < now) {
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return;
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}
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// Retry if the end time has not been exceeded.
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this.retryPrepareJob(jobKey, waylineJob);
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} catch (Exception e) {
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log.info("Failed to prepare the conditional task.");
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waylineJobService.updateJob(job);
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}
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}
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private void retryPrepareJob(ConditionalWaylineJobKey jobKey, WaylineJobDTO waylineJob) {
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Optional<WaylineJobDTO> childJobOpt = waylineJobService.createWaylineJobByParent(jobKey.getWorkspaceId(), jobKey.getJobId());
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if (childJobOpt.isEmpty()) {
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log.error("Failed to create wayline job.");
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return;
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}
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WaylineJobDTO newJob = childJobOpt.get();
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newJob.setBeginTime(LocalDateTime.now().plusSeconds(RedisConst.WAYLINE_JOB_BLOCK_TIME));
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boolean isAdd = waylineRedisService.addPrepareConditionalWaylineJob(newJob);
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if (!isAdd) {
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log.error("Failed to create wayline job. {}", newJob.getJobId());
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return;
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}
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waylineJob.setJobId(newJob.getJobId());
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waylineRedisService.setConditionalWaylineJob(waylineJob);
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}
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}
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