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https://issues.apache.org/jira/browse/NIFI-10955?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Handermann resolved NIFI-10955.
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Fix Version/s: 2.0.0
1.22.0
Resolution: Fixed
> In JASN1Reader allow preprocess of ASN files to reconcile unsupported features
> ------------------------------------------------------------------------------
>
> Key: NIFI-10955
> URL: https://issues.apache.org/jira/browse/NIFI-10955
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Tamas Palfy
> Assignee: Tamas Palfy
> Priority: Major
> Fix For: 2.0.0, 1.22.0
>
> Time Spent: 3h 50m
> Remaining Estimate: 0h
>
> The ASN specification allows the creation of valid ASN files that has
> features unrecognized by the asn1bean library we are using in JASN1Reader.
> We can add a preprocessing step that creates modified versions of the
> provided ASN files (leaving the originals intact) that removes unsupported
> features in a way that makes them less strict but otherwise should still be
> compatible with incoming data.
> Identified unsupported features:
> * Certain constraint types
> ** E.g.
> {code:java}
> SomeType ::= INTEGER (ALL EXCEPT (0..15))
> {code}
> * Extension marker (a.k.a "ellipsis" or
> {code:java}
> ...
> {code}
> )
> ** Can occur in constraints (e.g.
> {code:java}
> SomeType ::= INTEGER (0..8,...,100..200)
> {code}
> although
> {code:java}
> SomeType ::= INTEGER (0..8,...)
> {code}
> works)
> ** or in type definitions (e.g.
> {code:java}
> RootType::= SEQUENCE {
> field1 INTEGER,
> field2 INTEGER,
> ...,
> field3 INTEGER
> }
> {code}
> but this seems to work as well).
> * Version brackets e.g.
> {code:java}
> SomeType ::= SEQUENCE {
> integerField1 INTEGER,
> integerField2 INTEGER,
> ...,
> [[ -- from version 2
> integerField3 INTEGER,
> integerField4 INTEGER ]]
> }
> {code}
> Seems to require extension marker as well.
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