public void complete() {
            completeDuration = durationTimer.get();
        }
Log the duration of a phase with {@code phase} affected items.

@param phase             The phase to log against.
@param durationTimer     The duration of the phase.
@param affectedItemCount The number of items affected in the phase.
stroom-processor/stroom-processor-impl/src/main/java/stroom/processor/impl/ProgressMonitor.java