public boolean shouldTrace(int level) {
        return level <= this.level;
    }
Check if information with the given level should be traced. This method is added to allow clients to check if
something should be traced before spending time building up the trace information itself.

@param level The trace level to test.
@return True if tracing is enabled for the given level, false otherwise.
messagebus/src/main/java/com/yahoo/messagebus/Trace.java