Generate RequestID if not previously set. Usually this is covered by audit log servlet filter and the value should persist.

Generate a unique InvocationID for each request.

ElapsedTime in MetricLogger will be set to 0 during logRequest. This is because the request is just being sent during  the IN_PROGRESS record creation.

resetContext in MetricLogger will reset elapsed time so further records don't use a stale elapsed time.

ENTRY_TIMESTAMP needs to be set in the audit servlet filter not in metric related classes. Removing that call from logRequest.

Elapsed time within MetricLogger should be the time between INVOKE_TIMESTAMP and the time at which the request has finished processing.

INVOKE_TIMESTAMP should be called a single time before the request is sent and not a second time during logResponse.