ActiveMQ MQTT: How can BrokerFilter return appropriate MQTT error codes after CONNECT
Issue
We implemented a BrokerFilter to support a custom authentication and authorization policy.
We would like the MQTT connect message to return the appropriate MQTT error code to the client if, for example, the supplied credentials were wrong.
In particular, we would like to be able to specify the return MQTT error code from within the BrokerFilter.addConnection. The MQTT error codes of our interest are:
- 0x02 Connection Refused, identifier rejected
- 0x04 Connection Refused, bad user name or password
- 0x05 Connection Refused, not authorized (A catch all for all otter failures)
Which exceptions can we raise in the BrokerFilter.addConnection to control the MQTT error code returned to the client?
Environment
- JBoss A-MQ 6.1
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