[Fiware-tech-help] Fw: CEP usage

[Tali Yatzkar-Haham]

Report user issue 

Regards,
Tali

Tali Yatzkar Haham
Event-based Middleware & Solutions
IBM Haifa Research Lab, Israel
tali at il.ibm.com 972-4-8296320
 
----- Forwarded by Tali Yatzkar-Haham/Haifa/IBM on 11/19/2014 01:12 PM 
-----

From:   "Liu, Zhiying" <zhiying.liu at qsc.de>
To:     Tali Yatzkar-Haham/Haifa/IBM at IBMIL
Date:   11/19/2014 11:57 AM
Subject:        Re: CEP usage



Hello Tali, 

Many thanks for your reply! I will try it again.

Best regards,
Zhiying Liu


Am 17.11.2014 um 15:31 schrieb Tali Yatzkar-Haham <TALI at il.ibm.com>:

Zhiying Liu, 

Thank you for using the CEP and Orion CB. 

Could you please send your question (and any future issue) to the 
fiware-tech-help as explained in the link? This will allow us better 
control on the requests and allow to involve the Orion people if needed. 
Please include the CEP definition file you are using (exported from the 
Web user interface). 

Meanwhile, as for your specific question, yes, the entity with all the 
required attribute should be already defined in the CB (note that this 
entity should be defined with all the attributes of the event, including 
the CEP build-in attributes). 
I would also suggest to add to the CEP consumer of type file with xml 
formatter. This way you will see the output event in the XML NGSI format 
in the file, and you could try to send it directly to the CB with REST. 
This might help to understand the problem. 

Regards,
Tali

Tali Yatzkar Haham 
Event-based Middleware & Solutions
IBM Haifa Research Lab, Israel
tali at il.ibm.com 972-4-8296320




From:        "Liu, Zhiying" <zhiying.liu at qsc.de> 
To:        Tali Yatzkar-Haham/Haifa/IBM at IBMIL 
Date:        11/17/2014 01:07 PM 
Subject:        CEP usage 



Dear Mr. Haham, 

I am trying to integrate CEP and Orion Context Broker to our system. 

I have defined my project from CEP Admin GUI, and with some input events I 
can get the expected output event written to a file, it is fine. 

However, there is problem when I define  a consumer as REST type so that 
the derived events can be sent to orion context broker. 
1. I have defined the output event that is targeted to a context Broker 
with these required attributes: 
·      entityId ? of type String 
·      entityType ? of type String 
2.     2. Specified the URL of the context broker like this: http://<ip of 
the instance>:1026/v1/updateContext 
      3. The context broker is started 
       4. I can "http://<ip of the instance>:1026/v1/updateContext" by 
postman, and query my updated context as well. 
  
BUT, the context broker cannot receive any event generated from CEP. 

In the user guide, I read: 
"...a singleton entity of entity type CEPEventReporter and entity id 
CEPEventReporter was defined in the Context Broker". 

Should the entity be pre-defined in the context broker before accepting 
events from CEP? I tried both, e.g. predefined and not defined, it works 
from postman, but not through CEP.   

Could you help me in this problem? 

Thank you in advance! 
Zhiying Liu 
  
Telefon: 0221 6698 - 497 
Mobil: 0157 57986543 
E-Mail: Zhiying.Liu at qsc.de 

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