[program] Add monitoring uri field + getter

Author: kostorr

src/CommandLineUtilities/Program.h

@@ -55,9 +55,16 @@ class Program : public AliceO2::Common::Program
     mLogLevel = logLevel;
   }
 
+  std::string getMonitoringUri()
+  {
+    return MONITORING_URI;
+  }
+
  private:
   InfoLogger::InfoLogger mLogger;
   InfoLogger::InfoLogger::Severity mLogLevel = InfoLogger::InfoLogger::Severity::Info;
+  
+  const std::string MONITORING_URI = "stdout://";
 };
 
 } // namespace CommandLineUtilities

src/CommandLineUtilities/ProgramMetrics.cxx

@@ -80,7 +80,7 @@ class ProgramMetrics : public Program
     // Monitoring instance to send metrics
     std::unique_ptr<Monitoring> monitoring;
     if (mOptions.monitoring) {
-      monitoring = MonitoringFactory::Get("stdout://");
+      monitoring = MonitoringFactory::Get(getMonitoringUri());
       monitoring->addGlobalTag(tags::Key::Subsystem, tags::Value::CRU);
     }