Use new functionality to give a more precise error

key4hep · Nov 9, 2023 · 6e29a72 · 6e29a72
1 parent 11f2757
commit 6e29a72
Showing 1 changed file with 10 additions and 2 deletions.
diff --git a/k4FWCore/components/PodioOutput.cpp b/k4FWCore/components/PodioOutput.cpp
@@ -59,8 +59,16 @@ StatusCode PodioOutput::execute() {
   } else {
     try {
       m_framewriter->writeFrame(frame, "events", m_collection_names_to_write);
-    } catch (std::runtime_error& e) {
-      error() << "Could not write event: " << e.what() << endmsg;
+    } catch (std::runtime_error&) {
+      const auto& [missing, _] = m_framewriter->checkConsistency(m_collection_names_to_write, "events");
+      error() << "Could not write event, because the following collections are not present: ";
+      std::string sep = "";
+      for (const auto& n : missing) {
+        error() << sep << n;
+        sep = ", ";
+      }
+      error() << endmsg;
+
       return StatusCode::FAILURE;
     }
   }