demonstrate use of nested custom parameters in Late Tasks

Author: knopers8

Framework/basic.json

@@ -121,8 +121,16 @@
           "type": "Task",
           "name": "QcTask",
           "MOs": ["example"]
-        }]
-
+        }],
+        "extendedTaskParameters": {
+          "default": {
+            "default": {
+              "plots" : {
+                "nested": "value"
+              }
+            }
+          }
+        }
       }
     }
   },

Framework/include/QualityControl/LateTaskFactory.h

@@ -35,8 +35,8 @@ class LateTaskFactory
     auto* result = root_class_factory::create<LateTaskInterface>(taskConfig.moduleName, taskConfig.className);
     result->setName(taskConfig.taskName);
     result->setObjectsManager(objectsManager);
-    // result->setCustomParameters(taskConfig.customParameters);
-    // result->setCcdbUrl(taskConfig.ccdbUrl);
+    result->setCustomParameters(taskConfig.customParameters);
+    result->setCcdbUrl(taskConfig.ccdbUrl);
 
     return result;
   }

Framework/src/InfrastructureSpecReader.cxx

@@ -456,6 +456,15 @@ LateTaskSpec
     lts.updatePolicy = UpdatePolicyTypeUtils::FromString(policy.get());
   }
 
+  if (lateTaskTree.count("extendedTaskParameters") > 0) {
+    lts.customParameters.populateCustomParameters(lateTaskTree.get_child("extendedTaskParameters"));
+  } else if (lateTaskTree.count("taskParameters") > 0) {
+    for (const auto& [key, value] : lateTaskTree.get_child("taskParameters")) {
+      lts.customParameters.set(key, value.get_value<std::string>());
+    }
+  }
+
+
   // if (lateTaskTree.count("grpGeomRequest") > 0) {
     // lts.grpGeomRequestSpec = readSpecEntry<GRPGeomRequestSpec>(lts.taskName, lateTaskTree.get_child("grpGeomRequest"), wholeTree);
   // }

Modules/Skeleton/src/SkeletonLateTask.cxx

@@ -22,6 +22,8 @@
 #include "QualityControl/QCInputs.h"
 #include "QualityControl/QCInputsAdapters.h"
 #include "Skeleton/SkeletonLateTask.h"
+
+#include <boost/property_tree/ptree.hpp>
 #include <Framework/InputRecordWalker.h>
 #include <Framework/DataRefUtils.h>
 
@@ -46,6 +48,11 @@ void SkeletonLateTask::initialize(o2::framework::InitContext& /*ctx*/)
   mGraph->SetName("graph_example");
   mGraph->SetTitle("graph_example");
   getObjectsManager()->startPublishing(mGraph.get(), PublicationPolicy::Forever);
+
+  auto plots = mCustomParameters.getOptionalPtree("plots");
+  if (plots.has_value()) {
+    ILOG(Info, Support) << "nested param: " <<  plots.value().get<std::string>("nested") << ENDM;
+  }
 }
 
 void SkeletonLateTask::startOfActivity(const Activity& activity)