使用 CEP 我正在尝试制作 Proton 和 Orion 之间通信的基本示例。我只是想让 Proton 接收来自 Orion 的温度通知，如果温度值高于或等于 20，则发回一个更改一个布尔属性的有效负载。
这是我正在使用的定义。
{
"epn":
{
"events":
[
{
"name": "TemperatureContextUpdate",
"attributes":
[
{
"dimension": 0,
"description": "The certainty that this event happen (value between 0 to 1)",
"name": "Certainty",
"defaultValue": "1",
"type": "Double"
},
{
"dimension": 0,
"description": "No value means it equals the event detection time, other option is to use one of the defined distribution functions with parameters",
"name": "OccurrenceTime",
"type": "Date"
},
{
"dimension": 0,
"name": "ExpirationTime",
"type": "Date"
},
{
"dimension": 0,
"description": "The cost of this event occurrence. Negative if this is an opportunity",
"name": "Cost",
"type": "Double"
},
{
"dimension": 0,
"description": "Used in case the this event occur within an interval",
"name": "Duration",
"defaultValue": "0",
"type": "Double"
},
{
"dimension": "0",
"name": "entityId",
"type": "String"
},
{
"dimension": "0",
"name": "entityType",
"type": "String"
},
{
"dimension": "0",
"name": "temperature",
"type": "Integer"
},
{
"dimension": "0",
"name": "chaud",
"type": "Boolean"
}
],
"createdDate": "Wed Feb 22 2017"
},
{
"name": "Out_TemperatureContextUpdate",
"attributes":
[
{
"dimension": 0,
"description": "The certainty that this event happen (value between 0 to 1)",
"name": "Certainty",
"defaultValue": "1",
"type": "Double"
},
{
"dimension": 0,
"description": "No value means it equals the event detection time, other option is to use one of the defined distribution functions with parameters",
"name": "OccurrenceTime",
"type": "Date"
},
{
"dimension": 0,
"name": "ExpirationTime",
"type": "Date"
},
{
"dimension": 0,
"description": "The cost of this event occurrence. Negative if this is an opportunity",
"name": "Cost",
"type": "Double"
},
{
"dimension": 0,
"description": "Used in case the this event occur within an interval",
"name": "Duration",
"defaultValue": "0",
"type": "Double"
},
{
"dimension": "0",
"name": "entityId",
"type": "String"
},
{
"dimension": "0",
"name": "entityType",
"type": "String"
},
{
"dimension": "0",
"name": "temperature",
"type": "Integer"
},
{
"dimension": "0",
"name": "chaud",
"type": "Boolean"
}
],
"createdDate": "Wed Feb 22 2017"
}
],
"name": "TemperatureDemo",
"consumers":
[
{
"events":
[
{
"name": "Out_TemperatureContextUpdate"
}
],
"name": "Consumer_Rest",
"properties":
[
{
"name": "URL",
"value": "http://172.17.0.3:1026/v2/entities"
},
{
"name": "contentType",
"value": "application/json"
},
{
"name": "formatter",
"value": "json_ngsi"
},
{
"name": "delimiter",
"value": ";"
},
{
"name": "tagDataSeparator",
"value": "="
},
{
"name": "dateFormat",
"value": "dd/MM/yyyy-HH:mm:ss"
}
],
"type": "Rest",
"createdDate": "Wed Feb 22 2017"
},
{
"events":
[
{
"name": "TemperatureContextUpdate"
}
],
"name": "Consumer_File",
"properties":
[
{
"name": "filename",
"value": "/home/work/Documents/test.txt"
},
{
"name": "formatter",
"value": "json"
},
{
"name": "delimiter",
"value": ";"
},
{
"name": "tagDataSeparator",
"value": "="
}
],
"type": "File",
"createdDate": "Wed Feb 22 2017"
}
],
"epas":
[
{
"inputEvents":
[
{
"instanceSelectionPolicy": "First",
"alias": "TemperatureContextUpdate",
"filterExpression": "TemperatureContextUpdate.temperature>=20",
"name": "TemperatureContextUpdate",
"consumptionPolicy": "Consume"
}
],
"derivedEvents":
[
{
"name": "Out_TemperatureContextUpdate",
"reportParticipants": false,
"expressions":
{
"Cost": "TemperatureContextUpdate.Cost",
"Certainty": "TemperatureContextUpdate.Certainty",
"OccurrenceTime": "TemperatureContextUpdate.OccurrenceTime",
"Duration": "TemperatureContextUpdate.Duration",
"entityId": "TemperatureContextUpdate.entityId",
"ExpirationTime": "TemperatureContextUpdate.ExpirationTime",
"chaud": "true",
"entityType": "TemperatureContextUpdate.entityType",
"temperature": "TemperatureContextUpdate.temperature"
}
}
],
"evaluationPolicy": "Immediate",
"name": "EPA_Change",
"internalSegmentation":
[
],
"context": "always",
"epaType": "Basic",
"cardinalityPolicy": "Single",
"localPlacement": true,
"createdDate": "Wed Feb 22 2017",
"computedVariables":
[
]
}
],
"optimization":
{
},
"contexts":
{
"temporal":
[
{
"terminators":
[
],
"neverEnding": true,
"atStartup": true,
"name": "always",
"type": "TemporalInterval",
"createdDate": "Wed Feb 22 2017",
"initiators":
[
]
}
],
"segmentation":
[
],
"composite":
[
]
},
"producers":
[
]
}
}
我尝试在收到第一次更新时创建一个文件，但这个文件总是空的，顺便说一句，它是在我的目录中正确创建的，并且每次我更改定义时都会更改。其余的有效负载永远不会发送，就像条件永远不会触发一样。
我发送的有效载荷：
{
"subscriptionId": "51c04a21d714fb3b37d7d5a7",
"data":
[ {
"id": "temp1",
"type": "Temperature",
"temperature": {
"type":"integer",
"value": 28,
"metadata":{}
},
"chaud": {
"type":"boolean",
"value": false,
"metadata":{}
},
"Certainty": {
"value": "1",
"type": "Float"
},
"Cost": {
"value": "0",
"type": "Float"
},
"Name": {
"value": "",
"type": "String"
},
"EventSource": {
"value": "",
"type": "String"
},
"Duration": {
"value": "0",
"type": "Float"
}
}
]
}
日志 catalina.out ：
INFOS：启动事件消息正文阅读器 févr。2017 年 2 月 23 日上午 11:23:35 com.ibm.hrl.proton.webapp.providers.EventJSONNgsiMessageReader parseVTwoFormat INFOS：事件：TemperatureContextUpdate févr。2017 年 2 月 23 日上午 11:23:35 com.ibm.hrl.proton.webapp.providers.EventJSONNgsiMessageReader readFrom INFOS：完成的事件消息正文阅读器 févr。2017 年 2 月 23 日上午 11:23:35 com.ibm.hrl.proton.webapp.providers.EventJSONNgsiMessageReader 从 INFOS 读取：EventJSONNgsiMessageReader：读取事件 TemperatureContextUpdate；实体 ID=temp1；EventId=ba868559-7589-4720-ab75-658b920a3f14；乔德=假；实体类型=温度；计时=空；温度=28；检测时间=1487845415319；名称=; 确定性=1；成本=0；事件源=; 发生时间=空；持续时间=0；注释=; 过期时间=空；从经纪人... févr。2017 年 2 月 23 日上午 11:23:35 com.ibm.hrl.proton.webapp.resources。EventResource submitNewEvent INFOS：开始 submitNewEvent févr。2017 年 2 月 23 日上午 11:23:35 com.ibm.hrl.proton.webapp.resources.EventResource submitNewEvent INFOS：发送到质子运行时的事件...
所以知道我的问题在哪里吗？
谢谢。