DPL: calibration workflow example

Framework/TestWorkflows/CMakeLists.txt

@@ -33,6 +33,10 @@ o2_add_dpl_workflow(diamond-workflow
                   SOURCES src/o2DiamondWorkflow.cxx
                   COMPONENT_NAME TestWorkflows)
 
+o2_add_dpl_workflow(dummy-calibration-workflow
+                  SOURCES src/o2DummyCalibrationWorkflow.cxx
+                  COMPONENT_NAME TestWorkflows)
+
 o2_add_dpl_workflow(diamond-workflow-leaky
                   SOURCES src/o2DiamondWorkflowLeaky.cxx
                   COMPONENT_NAME TestWorkflows)

Framework/TestWorkflows/src/o2DummyCalibrationWorkflow.cxx

@@ -0,0 +1,73 @@
+// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
+// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
+// All rights not expressly granted are reserved.
+//
+// This software is distributed under the terms of the GNU General Public
+// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
+//
+// In applying this license CERN does not waive the privileges and immunities
+// granted to it by virtue of its status as an Intergovernmental Organization
+// or submit itself to any jurisdiction.
+#include "Framework/ConfigParamSpec.h"
+#include "Framework/DataTakingContext.h"
+#include "Framework/CompletionPolicyHelpers.h"
+#include "Framework/DeviceSpec.h"
+#include "Framework/ControlService.h"
+#include "Framework/Configurable.h"
+#include "Framework/RunningWorkflowInfo.h"
+#include "Framework/CallbackService.h"
+#include "Framework/EndOfStreamContext.h"
+#include <fairmq/Device.h>
+
+#include <iostream>
+#include <vector>
+
+using namespace o2::framework;
+
+#include "Framework/runDataProcessing.h"
+
+// This is how you can define your processing in a declarative way
+WorkflowSpec defineDataProcessing(ConfigContext const& specs)
+{
+  DataProcessorSpec a{
+    .name = "counter",
+    .outputs = {OutputSpec{{"counter"}, "TST", "A1"}},
+    .algorithm = AlgorithmSpec{adaptStateless(
+      [](DataAllocator& outputs, ProcessingContext& pcx) {
+        static int counter = 0;
+        auto& aData = outputs.make<int>(OutputRef{"counter"});
+        aData = counter++;
+        if (counter == 10) {
+          pcx.services().get<ControlService>().endOfStream();
+        }
+      })},
+  };
+
+  DataProcessorSpec b{
+    .name = "aggregator",
+    .inputs = {InputSpec{"x", "TST", "A1", Lifetime::Timeframe}},
+    .outputs = {OutputSpec{{"average"}, "TST", "B1", Lifetime::Sporadic}},
+    .algorithm = adaptStateful([](CallbackService& callbacks) {
+        static int sum = 0;
+        auto eosCallback = [](EndOfStreamContext &ctx) {
+          auto& aData = ctx.outputs().make<int>(OutputRef{"average"});
+          aData = sum;
+          ctx.services().get<ControlService>().endOfStream();
+        };
+        callbacks.set<CallbackService::Id::EndOfStream>(eosCallback);
+        return adaptStateless([](Input<"x", int> const& x)
+          {
+            sum += x;
+            std::cout << "Sum: " << sum << std::endl;
+        }); })};
+
+  DataProcessorSpec c{.name = "publisher",
+                      .inputs = {InputSpec{"average", "TST", "B1", Lifetime::Sporadic}},
+                      .algorithm = adaptStateless([](Input<"average", int> const& counter) {
+                        std::cout << "Counter to publish: " << counter << std::endl;
+                      })};
+
+  return workflow::concat(WorkflowSpec{a},
+                          WorkflowSpec{b},
+                          WorkflowSpec{c});
+}