Application ID in all messages and improved SLO message handling

Change-Id: Id6dce069b3e22e4a13144c302137c04dc3dd789d

.vscode/c_cpp_properties.json

@@ -13,7 +13,7 @@
             "defines": [],
             "cStandard": "c23",
             "intelliSenseMode": "linux-gcc-x64",
-            "compilerPath": "/usr/bin/g++",
+            "compilerPath": "/usr/lib64/ccache/g++",
             "compilerArgs": [
                 "-std=c++23",
                 "-I/usr/include/",

AMPLSolver.cpp

@@ -156,6 +156,10 @@ void AMPLSolver::SetAMPLParameter( const std::string & ParameterName,
 void AMPLSolver::DefineProblem(const Solver::OptimisationProblem & TheProblem,
                                const Address TheOracle)
 {
+  Theron::ConsoleOutput Output;
+  Output << "AMPL Solver: Optimisation problem received " << std::endl
+         << TheProblem.dump(2) << std::endl;
+         
   // First storing the AMPL problem file from its definition in the message
   // and read the file back to the AMPL interpreter.
 
@@ -230,6 +234,11 @@ void AMPLSolver::DataFileUpdate( const DataFileMessage & TheDataFile,
 void AMPLSolver::SolveProblem( 
   const ApplicationExecutionContext & TheContext, const Address TheRequester )
 {
+  Theron::ConsoleOutput Output;
+
+  Output << "AMPL Solver: Application Execution Context received. Problem Undefined = " << ProblemUndefined << std::endl
+         << TheContext.dump(2) << std::endl;
+
   // There is nothing to do if the application model is missing.
 
   if( ProblemUndefined ) return;
@@ -339,6 +348,8 @@ void AMPLSolver::SolveProblem(
     OptimisationGoal, ObjectiveValues, VariableValues, 
     DeploymentFlagSet
   ), TheRequester ); 
+
+  Output << "Solver found a solution" << std::endl;
 }
 
 // -----------------------------------------------------------------------------

MetricUpdater.cpp

@@ -169,31 +169,25 @@ void MetricUpdater::UpdateMetricValue(
 void MetricUpdater::SLOViolationHandler( 
      const SLOViolation & SeverityMessage, const Address TheSLOTopic )
 {
-  // The application execution context is constructed first 
-  // as it represents the name and the current values of the recorded
-  // metrics. 
-
-  Solver::MetricValueType TheApplicationExecutionContext;
-
-  for( const auto & [ MetricName, MetricValue ] : MetricValues )
-    if( !MetricValue.is_null() )
-      TheApplicationExecutionContext.emplace( MetricName, MetricValue );
+  Theron::ConsoleOutput Output;
+  Output << "Metric Updater: SLO violation received " << std::endl
+         << SeverityMessage.dump(2) << std::endl;
 
   // The application context can then be sent to the solution manager 
-  // using the corresponding message, and the time stamp of the severity 
-  // message provided that the size of the execution context equals the 
-  // number of metric values. It will be different if any of the metric 
-  // values has not been updated, and in this case the application execution
-  // context is invalid and cannot be used for optimisation and the 
-  // SLO violation event will just be ignored. Finally, the flag indicating
-  // that the corresponding solution found for this application execution 
-  // context should actually be enacted and deployed.
+  // using the application execution context message provided that none of 
+  // metric values are null indicating that no value has been received (yet)
+  // Thus, only if all metrics have values will the message be sent.
 
-  if( TheApplicationExecutionContext.size() == MetricValues.size() )
+  if( !MetricValues.empty() &&
+      std::ranges::none_of( MetricValues, 
+      [](const auto & MetricRecord){ return MetricRecord.second.is_null(); } ))
     Send( Solver::ApplicationExecutionContext(
       SeverityMessage.at( NebulOuS::TimePoint ).get< Solver::TimePointType >(),
-      TheApplicationExecutionContext, true
+      MetricValues, true
     ), TheSolverManager );
+  else
+    Output << "... failed to forward the application execution context (size: " 
+           << MetricValues.size() << ")" << std::endl;
 }
 
 // --------------------------------------------------------------------------

SolverComponent.cpp

@@ -141,7 +141,7 @@ int main( int NumberOfCLIOptions, char ** CLIOptionStrings )
         cxxopts::value<std::string>()->default_value("NebulOuS::Solver") )
     ("P,Port", "TCP port on  AMQ Broker", 
         cxxopts::value<unsigned int>()->default_value("5672") )
-    ("S,Solver", "Solver to use, devault Couenne",
+    ("S,Solver", "Solver to use, default Couenne",
         cxxopts::value<std::string>()->default_value("couenne") )
     ("U,User", "The user name used for the AMQ Broker connection", 
         cxxopts::value<std::string>()->default_value("admin") )
@@ -257,11 +257,13 @@ int main( int NumberOfCLIOptions, char ** CLIOptionStrings )
     // The application identifier must also be provided in every message to 
     // allow other receivers to filter on this.
 
-    virtual proton::message::property_map 
-    MessageProperties( void ) const override
+    virtual proton::message::property_map MessageProperties( 
+      const proton::message::property_map & CurrentProperties 
+          = proton::message::property_map() ) const override
     {
       proton::message::property_map TheProperties( 
-        Theron::AMQ::NetworkLayer::AMQProperties::MessageProperties() );
+        Theron::AMQ::NetworkLayer::AMQProperties::MessageProperties( 
+          CurrentProperties ));
       
       TheProperties.put( "application", ApplicationID );
 
@@ -288,7 +290,7 @@ int main( int NumberOfCLIOptions, char ** CLIOptionStrings )
   // --------------------------------------------------------------------------
   //
   // The AMQ communication is managed by the standard communication actors of 
-  // the Theron++ Actor framewokr. Thus, it is just a matter of starting the 
+  // the Theron++ Actor framework. Thus, it is just a matter of starting the 
   // endpoint actors with the given command line parameters.
   //
   // The network endpoint takes the endpoint name as the first argument, then