[Fiware-tech-help] Problem with xml events CEP and orion

[Tali Yatzkar-Haham]

Hi Ahmed,

Probably the instructions are not clear enough.

You need to add two attributes to the BContextUpdate event.
The name of the first attribute is entityId, and it should be of type 
String (the value of this attribute at run time will be "B1", but in your 
event definition the name of the attribute should be entityId, and not B1)
The name of the second attribute is  entityType, and it should be of type 
String (the value of this attribute at run time will be "B", but in your 
event definition the name of the attribute should be entityType , and not 
B)

Those attributes would allow you to know which entity from which type got 
a ContextUpdate event from Orion, and you can refer to those attributes in 
your other definitions (EPA, segmentation contexts,..)

Best regards,
Tali

Tali Yatzkar Haham
Smart Decision Solutions
IBM Haifa Research Lab, Israel
tali at il.ibm.com 972-4-8296320
 



From:   Ahmed Sadek <don1559 at gmail.com>
To:     Tali Yatzkar-Haham/Haifa/IBM at IBMIL
Cc:     "fiware-tech-he." <fiware-tech-help at lists.fi-ware.org>, Fabiana 
Fournier/Haifa/IBM at IBMIL
Date:   12/05/2015 09:01 AM
Subject:        Re: Problem with xml events CEP and orion



Dear Tali,

I have read it multiple times, honestly. my understanding from those two 
lines is that I should add two attributes and I have added them indeed. 

1- entityId ? of type String -> Inside event BContextUpdate-> attribute B1 
string since this is the entity id.
2- entityType ? of type String -> Inside event BContextUpdate-> attribute 
B string since this is the entityType.

"name": "BContextUpdate",
                "attributes": [
                    {
                        "dimension": 0,
                        "name": "Temperature",
                        "type": "Integer"
                    },
                    {
                        "dimension": "0",
                        "name": "SoC",
                        "type": "Integer"
                    },
                    {
                        "dimension": "0",
                        "name": "B",
                        "type": "String"
                    },
                    {
                        "dimension": "0",
                        "name": "B1",
                        "type": "String"
                    }
                ]

Did I understand this correctly ?

Best,
Ahmed

On Tue, May 12, 2015 at 6:29 AM, Tali Yatzkar-Haham <TALI at il.ibm.com> 
wrote:
Dear Ahmed, 

Please read the CEP user guide appendix carefully, since there are several 
integration details that you must follow. It seems that the issue you see 
can be solved by following this requirement from the appendix: 
  
In the IBM Proactive Technology Online application, such event type must 
be defined. This event must have all the context attributes defined in the 
subscription, and have two additional mandatory attributes: 
? entityId ? of type String. This attribute holds the entityId value 
provided in the message ("OUTSMART.NODE_3505" in the example above) 
? entityType ? of type String. This attributes holds the entity type 
provided in the message ("Node" in the example above) 



Best regards,
Tali

Tali Yatzkar Haham 
Smart Decision Solutions
IBM Haifa Research Lab, Israel
tali at il.ibm.com 972-4-8296320




From:        Ahmed Sadek <don1559 at gmail.com> 
To:        Tali Yatzkar-Haham/Haifa/IBM at IBMIL 
Date:        12/05/2015 02:00 AM 
Subject:        Problem with xml events CEP and orion 




Dear Tali, 

I am trying to post xml events (from orion) to the CEP, but I am getting 
null point exception errors. 

Can you help me and tell me where is the problem. 

When I POST this even I also get null point exception. 

POST http://194.28.122.7:8080//ProtonOnWebServer/rest/events 

<notifyContextRequest> 
  <subscriptionId>555128ffa85d63e238d75d8b</subscriptionId> 
  <originator>localhost</originator> 
  <contextResponseList> 
    <contextElementResponse> 
      <contextElement> 
        <entityId type="B" isPattern="false"> 
          <id>B1</id> 
        </entityId> 
        <contextAttributeList> 
          <contextAttribute> 
            <name>Temperature</name> 
            <type>float</type> 
            <contextValue>10</contextValue> 
          </contextAttribute> 
          <contextAttribute> 
            <name>SoC</name> 
            <type>integer</type> 
            <contextValue>10</contextValue> 
          </contextAttribute> 
        </contextAttributeList> 
      </contextElement> 
      <statusCode> 
        <code>200</code> 
        <reasonPhrase>OK</reasonPhrase> 
      </statusCode> 
    </contextElementResponse> 
  </contextResponseList> 
</notifyContextRequest> 


Attached the definition file and last catalina log. 

Best, 
Ahmed Sadek[attachment "cataline.out" deleted by Tali 
Yatzkar-Haham/Haifa/IBM] [attachment "lumtest.json" deleted by Tali 
Yatzkar-Haham/Haifa/IBM] 

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