Add logging

[sjohnr]

For consistency with Spring Security (best effort), the logs introduced in this PR use the following keywords:

• "Retrieved"
• "Validated"
• "Generated"
• "Saved"
• "Removed"
• "Revoked"
• "Authenticated"
• "Set SecurityContextHolder"
• "Did not ... since ..."

Note: We also use a console color highlighting plugin (GrepConsole) in IntelliJ that looks for keywords in Spring Security logs which the above could be added to. Currently we look for:

• "Invoking"
• "Authenticating"
• "Authenticated"
• "Authorizing"
• "Authorized"
• "Securing"
• "Secured"
• "Set SecurityContextHolder"

Here's an example log file with Spring Security trace enabled:

application.log

Examples:

Closes gh-159

[jgrandja]

Thanks for the PR @sjohnr.

Please add logs to OidcClientRegistrationAuthenticationProvider and OidcClientConfigurationAuthenticationProvider.

Also, for all Filter's before calling AuthenticationManager.authenticate(), let's add the log:

if (logger.isTraceEnabled()) {
	logger.trace(LogMessage.format("Authenticating %s", authenticationRequest.getClass().getSimpleName()));
}

[jgrandja]

Thanks for the PR @sjohnr ! This is now merged.

The TRACE logging is going to be super valuable for troubleshooting issues 👍