Dear Lorenzo,

The user guide is the best source for the kind of patterns (EPA) you can
define with the CEP. You define the project in the Authoring tool (as you
did), then export the definition to the engine and update the engine to
use the new definition (with the REST api)
As for the format of the input event, currently the CEP support a flat
JSON format, tag delimited format, or NGSI format as in the REST api
example

You may want to watch the webinar and tutorial to see the stages of
building and running a CEP application.
I cc the fiware-tech-help in order to have our correspondence documented
in the FIWARE tracker system.

Regards,
Tali

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

From: Lorenzo Eccher <leccher@eng.it>
To: Tali Yatzkar-Haham/Haifa/IBM@IBMIL
Date: 18/03/2015 05:51 PM
Subject: FIWARE CEP: Question about project configuration in Proton

Hallo Mrs Tali,
my name is Lorenzo and I started working using FI WARE few days ago.

I'd like to use Proton as CEP GE in my FI-WARE architecture.

I ask your help because I have an event that has a complex structure and I
would like to understand how can I define it and the EPA that should use
it.

I check in documents you provide in this wiki
https://forge.fiware.org/plugins/mediawiki/wiki/fiware/index.php/CEP_GE_-_IBM_Proactive_Technology_Online_User_and_Programmer_Guide

and then
forge.fiware.org/plugins/mediawiki/wiki/fiware/index.php/Complex_Event_Processing_Open_RESTful_API_Specification
and
http://forge.fiware.org/plugins/mediawiki/wiki/fiware/index.php/FIWARE.ArchitectureDescription.Data.CEP

but I don't find anything about attributes of type object in event
configuration or EPA configuration or how set up the event description
using REST api.

the json structure of incoming event is this (I know that name attribute
here is missing)

{"contextElements":[
{"type":"ADD",
"isPattern":false,

"id":"ADD_MESSAGE_com.liferay.portlet.messageboards.model.MBMessage_111516",
"attributes":[

,

,

,

,

,

,

,

,

,
{"name":"model","type":"string","value":"

"}
]}
],
"updateAction":"APPEND"}

The EPA should then check the "value" of "name":"groupId" "attributes"
field.
I don't think is easy to do it using Proton UI (
http://130.206.81.23:8080/AuthoringTool/Main.html). I created there a new
project named is3_like_eng_test.

Could you address me to a resource that deeply explain how create the
proton project json file I need also.

Thank you in advance.
Best regards

Lorenzo
–

Lorenzo Eccher
lorenzo.eccher@eng.it
(+39) 0461 312 306
Engineering Ingegneria informatica s.p.a
www.eng.it

ENGINEERING Society and Territory Trento Research Office
EIT-ITC Labs, Trento node

ESTRO Lab at FBK building
via Sommarive, 18
Povo - 38123 Trento

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