public final void handle(LogMessage msg) {
        if ((filter != null) && (! filter.isLoggable(msg))) {
            filtered++;
            return;
        }

        if (doHandle(msg)) {
            count++;
        }
    }
This is the entry point for each log handler.  Takes care
of calling the actual doHandle() method.  Provided to make
it possible to extend what a handler does in a uniform way.

@param msg The message we are about to handle
logserver/src/main/java/com/yahoo/logserver/handlers/AbstractLogHandler.java