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https://issues.apache.org/jira/browse/ARTEMIS-1890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16493826#comment-16493826
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ASF GitHub Bot commented on ARTEMIS-1890:
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Github user gemmellr commented on the issue:
https://github.com/apache/activemq-artemis/pull/2113
> So RH docs shouldnt influence the upstream/apache.
On this specifically, the docs pointed to are for an implementation of the
AMQP 0-x style topic binding syntax the Artemis docs indicate its wildcard
syntax is similar to, it seems highly appropriate information to reference and
consider. There is no upstream-downstream relationship between the two in this
case.
More generally, if the expected Artemis behaviour was understood to be the
same as when using the AMQP 0-x syntax it is documented as 'similar to' then
the bug report seems valid. I expect testing a comparable scenario with either
of the Apache Qpid brokers (of which one is actually upstream from the linked
MRG broker behaviour) implementing AMQP 0-x would give the behaviour being
sought. If it isnt understood to give the same behaviour, then it could simply
be decided that the Artemis docs are loose/inaccurate to its implementation and
theyd just need updating to better explain how # wildcarding actually operates.
I agree that fixing this might give a subtle change in behaviour not
expected by some, and so even considering it as a bug would probably keep it
for a 2.7.0 release personally as a result. Certainly theres no need to rush it
into 2.6.1, other version numbers are available and can be used.
(I haven't looked at the code, just commenting on the behaviour)
> # any-word wildcard doesn't match zero words if not used at the end of a
> wildcard expression
> --------------------------------------------------------------------------------------------
>
> Key: ARTEMIS-1890
> URL: https://issues.apache.org/jira/browse/ARTEMIS-1890
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: Broker
> Affects Versions: 2.6.0
> Reporter: Johan Stenberg
> Priority: Major
> Attachments: Artemis1890_AnyWordWildCard_Test.java
>
>
> [https://activemq.apache.org/artemis/docs/latest/wildcard-syntax.html] states
> that the {{#}} wildcard character means _"match any sequence of *zero* or
> more words"_. This however is only true if the wild card is the last
> character in a wildcard expression. If any word comes after the wildcard
> character then the actual behavior is _"match any sequence of *one* or more
> words"_
> This means, the pattern {{topics.#.FOO}} matches {{topics.abc.FOO}} but not
> {{topics.FOO}}
> I am attaching a test case.
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