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Questions tagged [wso2-cep]

251 questions
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WSO2 DAS. Vizualization event points on the map

I would like to test GEO map gadget using WSO2 DAS. I have a stream with geo coordinates (e.g.: latitude=51.509865, longitude=-0.118092). My goal is to show points on the map in real time (real time datasource) using Geo Map chart type. I set only…
Alex
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WSO2CEP SiddhiQL - how to insert the attributes from one stream to another stream

I am using the WSO2 CEP and I have create the following Execution plan: define stream sensor1Stream (timestamp string, id string, latitude double, longitude double, altitude double); define stream sensor2Stream (timestamp string, id string,…
fay
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wso2CEP on docker - supports JMS (activemq) and other clients

I'm using a docker image of wso2CEP. I want to Event Receiver and Publisher that will connect to JMS (ActiveMQ) and in the future maybe other clients (Kafka) or cassandra or http. How can I add this support to dockerized CEP? I dont want to…
TommyW
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Additional business logic to send an email in WSO2 DAS flow

I'm developing a CEP application prototype using WSO2 DAS. As a result of my flow, I have a final event stream (attr.: email address, subject, text,...) wich I want to send by mail to the address from the attribute of current event. But using WSO2…
Alex
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WSO2 CEP - SIDDHI max function in time window returns null

I have a query that captures the max value of a field in a stream: from stream1#window.time(1 min) select max(value1) as max_value1 insert all events into newstream; Although, after this window I start to get null values in the max_value1. I do…
JoaoFilipeClementeMartins
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WSO2 CEP Stream Count function restart

I have the following query: from stream1 select count() as item insert into newStream; Is it possible to restart the count() function of a stream? If not, how can I circumvent this? If possible.
JoaoFilipeClementeMartins
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WSO2CEP Siddhi extension GEO (within function)

I a question regarding the GEO Extension 'within' function. I have multiple event streams, which contain sensor information, including the location of each sensor (in geographical coordinates, and elevation). Furthermore, I have a Polygon (example…
fay
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WSO2 CEP : Siddhi QL: How to alert events consistently after matching certain condition

From the below stream, I want to alert the event which has occurred twice when the temperature goes beyond 90 (like every 2 event with temp > 90 needs to be…
Kannan
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WSO2CEP eventreceiver mapping XML name value configuration

This is what my input XML data looks like: stringName stringValue Actual data: event_GUID …
kumputr
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WSO2 CEP 420 JMSEventAdapter - Event droppet at outputadapter job queue is full

I have a CEP flow that has a high throughput with 100+ messages per second. And I am publishing the result of my processing into a JMS publisher with the following configuration: Output Event Adapter Type* : JMS JNDI Initial Context Factory Class:…
JoaoFilipeClementeMartins
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WSO2 CEP : Siddhi QL: Creating a unique stream with similar event records

I am pretty new to WSO2 CEP Siddhi QL, I got a requirement to analyze the events coming to a stream. For ex: I have data coming in like this…
Kannan
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WSO2 CEP - Siddhi queries correlate coordinates of different event streams

I'm new to WSO2 CEP and Siddhi queries. I have created three different event streams, each stream is about an particular sensor, as shown in the image below: Each event stream of sensors has the latitude and longitude of the sensor. The sensors…
fay
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run WSO2 CEP in eclipse

How can I run WSO2 CEP in eclipse IDE so I can get all the logs in the Eclipse console? I searched online and no guidance is provided. Although, I have been able to create extensions for WSO2 CEP I was not able to run WSO2 CEP as a whole in eclipse.
JoaoFilipeClementeMartins
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WSO2CEP siddhi unable to parse substr extension function in event execution plan

I have tried to get the ExectuionPlanRuntime by the SiddhiManger as below public static ExecutionPlanRuntime getExecutionPlanRuntime(String plan) { return new SiddhiManager().createExecutionPlanRuntime(plan); } The String plan has an…
Bruce
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Siddhi check if an event does not arrive within a specified time window?

I am using CEP to check if an event has arrived within a specified amount of time (lets say 1 min). If not, I want to publish an alert. More specifically, a (server) machine generates a heartbeat data stream and sends it to CEP. The heartbeat stream…
zlinks
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