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https://issues.apache.org/jira/browse/STREAMPIPES-142?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Patrick Wiener reassigned STREAMPIPES-142:
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Assignee: Patrick Wiener
> Handle non-primitive and primitive event data returned from Siddhi
> ------------------------------------------------------------------
>
> Key: STREAMPIPES-142
> URL: https://issues.apache.org/jira/browse/STREAMPIPES-142
> Project: StreamPipes
> Issue Type: Bug
> Components: Pipeline Elements
> Reporter: Patrick Wiener
> Assignee: Patrick Wiener
> Priority: Major
>
> Depending on the Siddhi query, events received from Siddhi either contain a
> *non-primitive data structure*, e.g. for the trend detection [1] it is a
> LinkedList,
> Returned Siddhi event looks like this:
> {code:java}
> Event{timestamp=1590427035172, data=[[24661], [10], [c], [1590427035166]],
> isExpired=false}{code}
> or
> contain a *primitive data structure*, e.g. for the numerical filter (siddhi)
> [2] as an Integer.
> Returned Siddhi event looks like this:
> {code:java}
> Event{timestamp=1590427127153, data=[24753, 36, b, 1590427127149],
> isExpired=false}{code}
>
> Now, in the wrapper when trying to convert to a StreamPipes event in the
> {code:java}
> toSpEvent(...){code}
> method this fails due to casting error.
>
> [1][Trend
> detection|[https://github.com/apache/incubator-streampipes-extensions/blob/dev/streampipes-processors-filters-siddhi/src/main/java/org/apache/streampipes/processors/siddhi/trend/Trend.java]]
> [2][Numerical Filter
> (Siddhi)|[https://github.com/apache/incubator-streampipes-extensions/blob/dev/streampipes-processors-filters-siddhi/src/main/java/org/apache/streampipes/processors/siddhi/filter/NumericalFilter.java]]
>
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