[QPID-8488] [Broker-J] Enhance ACL rule with multi-value properties

• Type: New Feature
• Status: Closed
• Priority: Minor
• Resolution: Implemented
• Fix Version/s: qpid-java-broker-9.0.0
• Component/s: Broker-J
• Labels: ACL Broker Java
• Assignee: Unassigned
• Reporter: Marek Laca
• Created: 10/Nov/20 17:39
• Updated: 11/Nov/22 12:21
• Resolved: 27/Oct/22 08:21

Description

We are using an extensive set of the ACL rules. Our set contains a lot of rules that differ only in single value. For example:

ACL ALLOW CON_USER CONSUME QUEUE name="broadcast.ABC.Public"
ACL ALLOW CON_USER CONSUME QUEUE name="broadcast.ABC.Private"
ACL ALLOW CON_USER CONSUME QUEUE name="broadcast.ABC.Repeat"
ACL ALLOW CON_USER CONSUME QUEUE name="response.ABC"
ACL ALLOW CON_USER CONSUME QUEUE name="error.ABC"

These rules differ only in "name" property, hence if the "name" was a multi-value property then it would allow us to merge the rules into one:

ACL ALLOW CON_USER CONSUME QUEUE name=[broadcast.ABC.Public, broadcast.ABC.Private, broadcast.ABC.Repeat, response.ABC, error.ABC]

The multi-value functionality would decrement the amount of our rules substantially and improves the broker throughput.

Proposed solution:

We could set up multiple possible values as a comma separated list in brackets. The multi-values property can be implemented as the compressed prefix tree that checks an input string in linear time.
This task depends on the QPID-8487 because the refactoring of QPID-8487 clears the way for an effective implementation.