CEP

Complex Event Processing, CEP is used in Operational Intelligence (OI) solutions to provide insight into business operations by running query analysis against live feeds and event data. CEP relies on a number of techniques, including: Event-pattern detection, Event abstraction, Event filtering, Event aggregation and transformation.

CustomCEP

It enables you to register your own query. Below screen shows configurations required for a CustomCEPprocessor:

Configifuration Settings:

  • cep.query: provide the query for the CustomCEP processor
  • cep.query.messageName: it lists down all the configured messages, select the required message
  • cep.delegate: provide the qualified path of the listener class created for the CustomCEP processor

 

StatisticalCEP

If you do not know how to write a query, StatisticalCEP enables you to select the defined fields such as Message Name, under Query tab to perform statistical functions such as Mean, Max, Average, etc.

Configuration Settings:

  • Message Name: select the Message used in the pipeline
  • Fields: all the fields corresponding to the selected message would be displayedThere are four statistical functions available for the fields: Average | Minimum | Maximum | Sum
  • Time Window:
    • Sliding Window: the time window slides as per the time window duration
    • Fixed Window: the time window stays fixed for the window duration.
  • Window Duration: time for which the time window stays
  • Group By: Eenables grouping of the fields
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