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https://issues.apache.org/jira/browse/MINIFICPP-1957?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ádám Markovics resolved MINIFICPP-1957.
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Resolution: Won't Do
AttributeProviderService does not provide a simple map of attributes, but a
vector of maps, so resolving one attribute key to a value is ambiguous.
> Add AttributeProvider support to UpdateAttribute
> ------------------------------------------------
>
> Key: MINIFICPP-1957
> URL: https://issues.apache.org/jira/browse/MINIFICPP-1957
> Project: Apache NiFi MiNiFi C++
> Issue Type: Improvement
> Reporter: Marton Szasz
> Assignee: Ádám Markovics
> Priority: Minor
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Provide a way for UpdateAttribute to refer to attributes from an
> AttributeProvider controller service, in addition to normal flow file
> attributes.
> This can be achieved in two ways:
> - Add the attributes from the service to the flow file, and run the normal
> evaluation
> - Extend the EL evaluation to take AttributeProvider attributes into account
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