Question

下面是我的示例数据：（父JSON具有楼层信息，每个楼层具有多个传感器信息）

{"Floor_Id": "Galileo_001",
    "name": "Forklifts",
    "Sensor_data": [{
            "Floor_Id": "Galileo_001",
            "Floor_name": "Forklifts",
            "Name": "forkLift_002",
            "Asset_Id": 123,
            "Load": 1.7096133,
            "Timestamp": 1537878750996
        },
        {
            "Floor_Id": "Galileo_001",
            "Floor_name": "Forklifts",
            "Name": "forkLift_003",
            "Asset_Id": 456,
            "Load": 1.7096133,
            "Timestamp": 1537878750996,
        },
        {
            "Floor_Id": "Galileo_001",
            "Floor_name": "Forklifts",
            "Name": "forkLift_005 ",
            "Asset_Id": 127,
            "Load": 1.7096133,
            "Timestamp": 1537878750996
        },
        {
            "Floor_Id": "Galileo_001",
            "Floor_name": "Forklifts",
            "Name": "forkLift_001",
            "Asset_Id": 157,
            "Load": 1.7096133,
            "Timestamp": 1537878750996,
        }
]}

我想计算地板的总负载，总距离和有源传感器。每天都有类似的信息（每个楼层的总负载和总距离）。所需的响应是这样的：

{
    "TotalLoad": 3214,
    "Active_no_of_sensor":5,
    "Floor_Id": "Galileo_001",
    "LoadUnit": "Kgs",
    "AssetStatus": [{
        "TotalLoad": 200,
        "LoadUnit": "Kgs",
        "Date": "1539588994"
    }, {
        "TotalLoad": 400,
        "LoadUnit": "Kgs",
        "Date": "1539475200"
    }, {
        "TotalLoad": 100,
        "LoadUnit": "Kgs",
        "Date": "1539388800"
    }]
}

在NiFi中，我有两个单独的运行mongo聚合处理器。

用于计算每个的总负载和活动传感器的总数地板。
用于计算每天每一层的总负荷等。

对于第二种情况，我使用以下查询：

[{"$unwind" : "$Sensor_data" },
{"$match": {"Floor_Id" : {"$eq": "${http.param.floorid}"}}},
{"$group": {
     "_id": {"Floor_Id": "$Floor_Id", 
         "DailyDate":{"$dateFromParts":{
                    "year":{"$year":{"$add": [ISODate("1970-01-01"), "$Sensor_data.Timestamp"]}},
                    "month":{"$month":{"$add": [ISODate("1970-01-01"), "$Sensor_data.Timestamp"]}},
                    "day":{"$dayOfMonth":{"$add": [ISODate("1970-01-01"), "$Sensor_data.Timestamp"]}}
                      } 
                  }
             },
     "AssetLoad": {"$sum": "$Sensor_data.Load" },
     "AssetDistance": {"$sum" : {"$subtract": [{"$toDecimal":"$Sensor_data.End_odometer"},
                                                {"$toDecimal":"$Sensor_data.Start_odometer"}]}}
    }
},
{
    "$group" : {
            "_id": {"Floor_Id": "$_id.Floor_Id"},
            "TotalLoad": { "$sum": "$AssetLoad" },
            "TotalDistance" : { "$sum": "$AssetDistance" },
            "AssetStatus":{
                "$push":{
                    "TotalLoad": "$AssetLoad",
                    "LoadUnit": "Kgs",
                    "TotalDistance" : "$AssetDistance",
                    "Date": "$_id.DailyDate"
                    }
                }
        }
},
{"$project" : {
    _id:0,
    "AssetStatus" : 1

    }
}]

错误

处理器显示'Error running mongodb aggregation query: Unrecognized Token ISODate: was expecting null, true, false or NaN'

如何解决此问题？（我不想将集合中的日期格式从BSON Long更新为ISODate）

Answer 1

已解决

在Run Mongo Aggregation处理器中用$ convert运算符替换了ISODate

NiFi的“运行Mongo聚合”显示JSONMappingException：无法识别的令牌ISODate

1 个答案: