[PROTON-343] Add a pluggable Proton logging layer

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Won't Do
• Component/s: proton-c, proton-j
• Labels: patch
• Assignee: Phil Harvey
• Reporter: Phil Harvey
• Created: 25/Jun/13 11:05
• Updated: 23/Apr/21 11:38
• Resolved: 23/Apr/21 11:38

Description

Applications that use Proton sometimes want Proton to produce logging.

Goals
====

• Proton should provide a default logging implementation.
• It should be easy for Proton client code to provide custom logging implementation, e.g. one that uses the same third party logging framework as their application code.
• Proton should not have a compile-time dependency on a third party logging framework
• Proton's log output is considered to be part of its public interface. Therefore, in the spirit of Proton's cross-language consistency goals, this output should be consistent between proton-c and proton-j.
• The goals that general-purpose logging frameworks try to meet - performance, ease of use etc - also apply.

Issue Links

• is depended upon by: PROTON-388 Messenger lacks trace/debug logging
• is related to: PROTON-2131 Improved logging API