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更新停止状态

本文档假定您熟悉以下内容：

创建配送任务
简要介绍计划任务，其中介绍了它们之间的关系任务、经停点和车辆之间的细节关系。

如车队引擎基础知识中的安排的任务部分所述，您可以创建任务并将其与车辆停止点相关联，以模拟任务与车辆预计停靠地点之间的实际关联，以便驾驶员能够完成任务。

之后，您可以按照以下方式管理任务在整个生命周期内的进度：向 Fleet Engine 发送更新，以便其能够最有效地执行路由和状态更新。实现这一目的的一个重要方法是在车辆接近、到达和离开时停止停车。这样可以针对双方的任务进度报告和分析舰队操作员和最终用户。这些状态更新如下：

途中：VehicleStop 的 STATE 枚举使用 ENROUTE 来指示相应经停点是车辆行程列表中的下一个经停点。从任务的角度来看，这意味着与相应停止点关联的任何任务都是列表中下一个要完成的任务。
已到达：VehicleStop 的 STATE 枚举使用 ARRIVED 来指示车辆已抵达停车点。从任务的角度来看，这意味着与相应经停点相关的任何任务都处于正在处理状态。
已完成：您可以通过将相应经停点从车辆的经停点列表中移除来将其标记为已完成。执行此操作后，车队引擎会自动将所有关联的任务标记为“已关闭”。如需详细了解如何关闭任务，请参阅最终处理任务。

本文档介绍了如何使用服务器端方法更新停止状态。如果您为司机提供了使用受信任设备管理任务的功能，也可以通过司机应用执行此操作。请仅使用一种方法，以避免出现竞态条件并保持单一信息源。

车辆正在前往停靠点

当车辆开始导航到下一经停点时，您的系统应通知车队引擎。这有助于改进预计到达时间和路线计算。

停止更新的必填字段

Fleet Engine 会忽略通知实体中的所有其他字段。

字段	值
`remainingVehicleJourneySegments`	剩余车辆停止点的列表，其状态标记为 State.NEW。

前往经停点示例

以下示例展示了如何通知 Fleet Engine 有车辆正在在前往下一站的途中，使用 Java gRPC 库或 HTTP 对 UpdateDeliveryVehicle 进行 REST 调用。所有其他经停点均标记为新经停点。

gRPC

 static final String PROJECT_ID = "my-delivery-co-gcp-project";
 static final String VEHICLE_ID = "vehicle-8241890";

 DeliveryServiceBlockingStub deliveryService =
   DeliveryServiceGrpc.newBlockingStub(channel);

 // Vehicle settings
 DeliveryVehicle deliveryVehicle = DeliveryVehicle.newBuilder()
     // Next stop marked as ENROUTE
     .addRemainingVehicleJourneySegments(VehicleJourneySegment.newBuilder()  // 1st stop
        .setStop(VehicleStop.newBuilder()
            .setPlannedLocation(LocationInfo.newBuilder()
                .setPoint(LatLng.newBuilder()
                    .setLatitude(37.7749)
                    .setLongitude(122.4194)))
            .addTasks(TaskInfo.newBuilder().setTaskId(TASK1_ID))
            .setState(VehicleStop.State.ENROUTE)))
     // All other stops marked as NEW
     .addRemainingVehicleJourneySegments(VehicleJourneySegment.newBuilder()  // 2nd stop
        .setStop(VehicleStop.newBuilder()
            .setPlannedLocation(LocationInfo.newBuilder()
                .setPoint(LatLng.newBuilder()
                    .setLatitude(37.3382)
                    .setLongitude(121.8863)))
            .addTasks(TaskInfo.newBuilder().setTaskId(TASK2_ID))
            .setState(VehicleStop.State.NEW)))
     .build();

 // DeliveryVehicle request
 UpdateDeliveryVehicleRequest updateDeliveryVehicleRequest =
   UpdateDeliveryVehicleRequest.newBuilder()  // No need for the header
       .setName(vehicleName)
       .setDeliveryVehicle(deliveryVehicle)
       .setUpdateMask(FieldMask.newBuilder().addPaths("remaining_vehicle_journey_segments"))
       .build();

 try {
   DeliveryVehicle updatedDeliveryVehicle =
       deliveryService.updateDeliveryVehicle(updateDeliveryVehicleRequest);
 } catch (StatusRuntimeException e) {
   Status s = e.getStatus();
   switch (s.getCode()) {
      case NOT_FOUND:
        break;
      case PERMISSION_DENIED:
        break;
   }
   return;
 }

REST

PATCH https://fleetengine.googleapis.com/v1/providers/<project_id>/deliveryVehicles/<id>?updateMask=remainingVehicleJourneySegments`

<id> 是任务的唯一标识符。
请求标头必须包含字段 Authorization（值为 Bearer <token>，其中 <token> 由您的服务器发出根据服务账号角色中所述的准则，以及 JSON Web 令牌。
请求正文必须包含 DeliveryVehicle 实体：

示例 curl 命令：

 # Set JWT, PROJECT_ID, VEHICLE_ID, TASK1_ID, and TASK2_ID in the local
 # environment
 curl -X PATCH "https://fleetengine.googleapis.com/v1/providers/${PROJECT_ID}/deliveryVehicles/${VEHICLE_ID}?updateMask=remainingVehicleJourneySegments" \
   -H "Content-type: application/json" \
   -H "Authorization: Bearer ${JWT}" \
   --data-binary @- << EOM
 {
   "remainingVehicleJourneySegments": [
     {
       "stop": {
         "state": "ENROUTE",
         "plannedLocation": {
           "point": {
             "latitude": 37.7749,
             "longitude": -122.084061
           }
         },
         "tasks": [
           {
             "taskId": "${TASK1_ID}"
           }
         ]
       }
     },
     {
       "stop": {
         "state": "NEW",
         "plannedLocation": {
           "point": {
             "latitude": 37.3382,
             "longitude": 121.8863
           }
         },
         "tasks": [
           {
             "taskId": "${TASK2_ID}"
           }
         ]
       }
     }
   ]
 }
 EOM

车辆到达经停点

Fleet Engine 必须在有车辆到达停车点时收到通知。

停止更新的必填字段

Fleet Engine 会忽略通知实体中的所有其他字段。

字段	值
`remainingVehicleJourneySegments`	剩余车辆停止点的列表，其状态标记为 State.NEW。

“到达相应经停点”示例

以下示例展示了如何通知 Fleet Engine 有车辆已抵达停止时，使用 Java gRPC 库或通过 HTTP REST 调用 UpdateDeliveryVehicle。所有其他经停点均标记为新经停点。

gRPC

  static final String PROJECT_ID = "my-delivery-co-gcp-project";
  static final String VEHICLE_ID = "vehicle-8241890";

  DeliveryServiceBlockingStub deliveryService =
    DeliveryServiceGrpc.newBlockingStub(channel);

  // Vehicle settings
  String vehicleName = "providers/" + PROJECT_ID + "/deliveryVehicles/" + VEHICLE_ID;
  DeliveryVehicle deliveryVehicle = DeliveryVehicle.newBuilder()
      // Marking the arrival at stop.
      .addRemainingVehicleJourneySegments(VehicleJourneySegment.newBuilder()
         .setStop(VehicleStop.newBuilder()
             .setPlannedLocation(LocationInfo.newBuilder()
                 .setPoint(LatLng.newBuilder()
                     .setLatitude(37.7749)
                     .setLongitude(122.4194)))
             .addTasks(TaskInfo.newBuilder().setTaskId(TASK1_ID))
             .setState(VehicleStop.State.ARRIVED)))
      // All other remaining stops marked as NEW.
      .addRemainingVehicleJourneySegments(VehicleJourneySegment.newBuilder()  // 2nd stop
         .setStop(VehicleStop.newBuilder()
             .setPlannedLocation(LocationInfo.newBuilder()
                 .setPoint(LatLng.newBuilder()
                     .setLatitude(37.3382)
                     .setLongitude(121.8863)))
             .addTasks(TaskInfo.newBuilder().setTaskId(TASK2_ID))
             .setState(VehicleStop.State.NEW))) // Remaining stops must be NEW.
      .build();

  // DeliveryVehicle request
  UpdateDeliveryVehicleRequest updateDeliveryVehicleRequest =
    UpdateDeliveryVehicleRequest.newBuilder()  // No need for the header
        .setName(vehicleName)
        .setDeliveryVehicle(deliveryVehicle)
        .setUpdateMask(FieldMask.newBuilder()
            .addPaths("remaining_vehicle_journey_segments"))
        .build();

  try {
    DeliveryVehicle updatedDeliveryVehicle =
        deliveryService.updateDeliveryVehicle(updateDeliveryVehicleRequest);
  } catch (StatusRuntimeException e) {
    Status s = e.getStatus();
    switch (s.getCode()) {
       case NOT_FOUND:
         break;
       case PERMISSION_DENIED:
         break;
    }
    return;
  }

REST

`PATCH https://fleetengine.googleapis.com/v1/providers/<project_id>/deliveryVehicles/<id>?updateMask=remainingVehicleJourneySegments`

<id> 是任务的唯一标识符。
请求标头必须包含字段 Authorization（值为 Bearer <token>，其中 <token> 由您的服务器发出根据服务账号角色中所述的准则，以及 JSON Web 令牌。
请求正文必须包含 DeliveryVehicle 实体：

示例 curl 命令：

  # Set JWT, PROJECT_ID, VEHICLE_ID, TASK1_ID, and TASK2_ID in the local
  # environment
  curl -X PATCH "https://fleetengine.googleapis.com/v1/providers/${PROJECT_ID}/deliveryVehicles/${VEHICLE_ID}?updateMask=remainingVehicleJourneySegments" \
    -H "Content-type: application/json" \
    -H "Authorization: Bearer ${JWT}" \
    --data-binary @- << EOM
  {
    "remainingVehicleJourneySegments": [
      {
        "stop": {
          "state": "ARRIVED",
          "plannedLocation": {
            "point": {
              "latitude": 37.7749,
              "longitude": -122.084061
            }
          },
          "tasks": [
            {
              "taskId": "${TASK1_ID}"
            }
          ]
        }
      },
      {
        "stop": {
          "state": "NEW",
          "plannedLocation": {
            "point": {
              "latitude": 37.3382,
              "longitude": 121.8863
            }
          },
          "tasks": [
            {
              "taskId": "${TASK2_ID}"
            }
          ]
        }
      }
    ]
  }
  EOM

车辆停靠一站

当车辆停止时，Fleet Engine 必须收到通知。这会导致将与停止相关的所有任务设置为“关闭”状态。

停止更新的必填字段

Fleet Engine 会忽略通知实体中的所有其他字段。

字段	值
`remainingVehicleJourneySegments`	剩余车辆停止点的列表，其状态标记为 State.NEW。列表中的第一个经停点必须将其状态标记为 State.ENROUTE。

完成停止示例

以下示例展示了如何通知 Fleet Engine 有车辆已抵达停止时，使用 Java gRPC 库或通过 HTTP REST 调用 UpdateDeliveryVehicle。所有其他经停点均被标记为新经停点。

gRPC

  static final String PROJECT_ID = "my-delivery-co-gcp-project";
  static final String VEHICLE_ID = "vehicle-8241890";

  DeliveryServiceBlockingStub deliveryService =
    DeliveryServiceGrpc.newBlockingStub(channel);

  // Vehicle settings
  String vehicleName = "providers/" + PROJECT_ID + "/deliveryVehicles/" + VEHICLE_ID;
  DeliveryVehicle deliveryVehicle = DeliveryVehicle.newBuilder()
      // This stop has been completed and is commented out to indicate it
      // should be removed from the list of vehicle journey segments.
      // .addRemainingVehicleJourneySegments(VehicleJourneySegment.newBuilder()
      //    .setStop(VehicleStop.newBuilder()
      //        .setPlannedLocation(LocationInfo.newBuilder()
      //            .setPoint(LatLng.newBuilder()
      //                .setLatitude(37.7749)
      //                .setLongitude(122.4194)))
      //        .addTasks(TaskInfo.newBuilder().setTaskId(TASK1_ID))
      //        .setState(VehicleStop.State.ARRIVED)))
      // All other remaining stops marked as NEW.
      // The next stop could be marked as ENROUTE if the vehicle has begun
      // its journey to the next stop.
      .addRemainingVehicleJourneySegments(VehicleJourneySegment.newBuilder()  // Next stop
         .setStop(VehicleStop.newBuilder()
             .setPlannedLocation(LocationInfo.newBuilder()
                 .setPoint(LatLng.newBuilder()
                     .setLatitude(37.3382)
                     .setLongitude(121.8863)))
             .addTasks(TaskInfo.newBuilder().setTaskId(TASK2_ID))
             .setState(VehicleStop.State.NEW)))
      .build();

  // DeliveryVehicle request
  UpdateDeliveryVehicleRequest updateDeliveryVehicleRequest =
    UpdateDeliveryVehicleRequest.newBuilder()  // no need for the header
        .setName(vehicleName)
        .setDeliveryVehicle(deliveryVehicle)
        .setUpdateMask(FieldMask.newBuilder()
            .addPaths("remaining_vehicle_journey_segments"))
        .build();

  try {
    DeliveryVehicle updatedDeliveryVehicle =
        deliveryService.updateDeliveryVehicle(updateDeliveryVehicleRequest);
  } catch (StatusRuntimeException e) {
    Status s = e.getStatus();
    switch (s.getCode()) {
       case NOT_FOUND:
         break;
       case PERMISSION_DENIED:
         break;
    }
    return;
  }

REST

PATCH https://fleetengine.googleapis.com/v1/providers/<project_id>/deliveryVehicles/<id>?updateMask=remaining_vehicle_journey_segments`

<id> 是任务的唯一标识符。
请求标头必须包含一个值为 Bearer <token> 的 Authorization 字段，其中 <token> 由您的服务器根据服务账号角色和 JSON Web 令牌中所述的指南签发。
请求正文必须包含 DeliveryVehicle 实体：

示例 curl 命令：

 # Set JWT, PROJECT_ID, VEHICLE_ID, TASK1_ID, and TASK2_ID in the local
 # environment
 curl -X PATCH "https://fleetengine.googleapis.com/v1/providers/${PROJECT_ID}/deliveryVehicles/${VEHICLE_ID}?updateMask=remainingVehicleJourneySegments" \
   -H "Content-type: application/json" \
   -H "Authorization: Bearer ${JWT}" \
   --data-binary @- << EOM
 {
   "remainingVehicleJourneySegments": [
     {
       "stop": {
         "state": "NEW",
         "plannedLocation": {
           "point": {
             "latitude": 37.3382,
             "longitude": 121.8863
           }
         },
         "tasks": [
           {
             "taskId": "${TASK2_ID}"
           }
         ]
       }
     }
   ]
 }
 EOM

后续步骤

完成任务