Endre Kovacs created NIFI-6758:
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Summary: create bundle coordinate map in separate phase
Key: NIFI-6758
URL: https://issues.apache.org/jira/browse/NIFI-6758
Project: Apache NiFi
Issue Type: Improvement
Components: Core Framework
Reporter: Endre Kovacs
Assignee: Endre Kovacs
In NarUnpacker
https://github.com/apache/nifi/blob/9a496fe9d2681fca06fb6f071d0fa39d71bc5268/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-nar-utils/src/main/java/org/apache/nifi/nar/NarUnpacker.java#L131
a bundleCoordinate map is populated during a for loop which un-packs the nars
found in extension work dir.
*This is great.*
However if we want to optimize nifi size, we could keep only the un-packed the
nars, delete the original nar archive files, and save hundreds of MBs of
diskspace.
In this case, the bundle-coordinate map is not populated, as the nar files are
no longer present, only their unpacked , directory version are present.
Such empty bundle-coordinate map will result in an empty ExtensionMapping which
is returned, and is supplied to downstream components, eg.:
jettyserver puts it on context for web docs servlet
https://github.com/apache/nifi/blob/9a496fe9d2681fca06fb6f071d0fa39d71bc5268/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-jetty/src/main/java/org/apache/nifi/web/server/JettyServer.java#L1005
and the nifi-web-docs DocumentationController uses it:
https://github.com/apache/nifi/blob/9a496fe9d2681fca06fb6f071d0fa39d71bc5268/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-web-docs/src/main/java/org/apache/nifi/web/docs/DocumentationController.java#L60
In such case, the resulting effect is that when the user does a right click on
a processor, and clicks view-usage
None of the processors are showing in the help.
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