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https://issues.apache.org/jira/browse/NIFI-5713?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Pierre Villard resolved NIFI-5713.
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Resolution: Feedback Received
Apache NiFi 1.x is no longer maintained and no new release is planned on the
1.x release line. Marking as resolved as part of a cleanup operation. Please
open a new one with an updated description if this is still relevant for NiFi
2.x.
> MergeContent improperly changing mime.type
> ------------------------------------------
>
> Key: NIFI-5713
> URL: https://issues.apache.org/jira/browse/NIFI-5713
> Project: Apache NiFi
> Issue Type: Bug
> Affects Versions: 1.7.1
> Reporter: Brandon Rhys DeVries
> Priority: Minor
>
> MergeContent in "Binary Concatenation" mode will replace an existing
> "mime.type" attribute with "application/octet-stream" unless mime.type is set
> on the first FlowFile merged, even if "Attribute Strategy" is "Keep All
> Unique Attributes". Perhaps rather than pulling the mime.type from the
> "merger"[2], it should check the "bundleAttributes"[3] first. if no
> mime.type is specified there, then perhaps "octet-stream" is a good default.
>
> Additionally, regardless of whatever implementation choices are made in the
> determination of the mime.type, the "WritesAttribute" documentation should be
> updated to indicate that mime.type is being set...
>
> [1]
> [https://github.com/apache/nifi/blob/ea9b0db2f620526c8dd0db595cf8b44c3ef835be/nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/MergeContent.java#L621-L629]
>
> [2]
> [https://github.com/apache/nifi/blob/ea9b0db2f620526c8dd0db595cf8b44c3ef835be/nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/MergeContent.java#L502]
>
> [2]
> [https://github.com/apache/nifi/blob/ea9b0db2f620526c8dd0db595cf8b44c3ef835be/nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/MergeContent.java#L501]
>
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