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https://issues.apache.org/jira/browse/NIFI-1023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16363426#comment-16363426
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Seth Kingsley commented on NIFI-1023:
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I decided to try a quick-and-dirty version of this, using attributes to define
namespace fixes. For instance, if you set xmlns.ns1 to [http://namespace/1,]
that makes it available in XPath expressions.
How strong is the requirement to have a controller service keeping track of the
namespaces instead?
> Need ability to supply namespace mapping for XPath/XQuery processors
> --------------------------------------------------------------------
>
> Key: NIFI-1023
> URL: https://issues.apache.org/jira/browse/NIFI-1023
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Reporter: Matt Gilman
> Priority: Minor
>
> Possibly consider creating a controller service that provides access to a
> NamespaceContext which can be used with EvaluteXPath and EvaluateXQuery.
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