Clarify verbosity example (#263)

Author: awegrzyn

examples/3-Verbosity.cxx

@@ -1,5 +1,5 @@
 ///
-/// \file 1-Basic.cxx
+/// \file 3-Verbosity.cxx
 /// \author Adam Wegrzynek <[email protected]>
 ///
 
@@ -11,21 +11,21 @@ int main()
 {
   // Configure monitoring
   // Pass string with list of URLs as parameter
-  auto monitoring = MonitoringFactory::Get("stdout:///info");
+  // Set backend verbosities after as URL path
+  auto monitoring = MonitoringFactory::Get("stdout:///debug,influxdb-stdout:///prod");
 
-  // now send an application specific metric
-  // 10 is the value
-  // myMetric is the name of the metric by creating and moving Metric object
-  monitoring->send({10, "myMetricInt", Verbosity::Debug}, DerivedMetricMode::INCREMENT);
-  monitoring->send({10.10, "myMetricFloat", Verbosity::Prod}, DerivedMetricMode::INCREMENT);
+  monitoring->send({1, "myMetricInfo"}); // By default metric verbosity is set to Info
+  monitoring->send({1, "myMetricInfo"});
 
-  //monitoring->sendGrouped("measurementName", {{20, "myMetricIntMultiple"}, {20.30, "myMetricFloatMultple"}}, Verbosity::Debug);
-  //monitoring->sendGrouped("measurementName", {{20, "myMetricIntMultiple"}, {20.30, "myMetricFloatMultple"}}, Verbosity::Prod);
+  /// Verbosity is supported by buffering...
+  monitoring->enableBuffering();
+  monitoring->send({10, "myMetricDebug", Verbosity::Debug});
+  monitoring->send({10.10, "myMetricProd", Verbosity::Prod});
 
-  monitoring->send({10, "myMetricInt", Verbosity::Debug}, DerivedMetricMode::INCREMENT);
-  monitoring->send({10.10, "myMetricFloat", Verbosity::Prod}, DerivedMetricMode::INCREMENT);
+  /// ... and derived metric modes
+  monitoring->send({10, "myMetricDebug", Verbosity::Debug}, DerivedMetricMode::INCREMENT);
+  monitoring->send({10.10, "myMetricProd", Verbosity::Prod}, DerivedMetricMode::INCREMENT);
 
-  monitoring->enableBuffering();
-  monitoring->send({10, "myMetricInt", Verbosity::Debug});
-  monitoring->send({10.10, "myMetricFloat", Verbosity::Prod});
+  monitoring->send({10, "myMetricDebug", Verbosity::Debug}, DerivedMetricMode::INCREMENT);
+  monitoring->send({10.10, "myMetricProd", Verbosity::Prod}, DerivedMetricMode::INCREMENT);
 }