Printing log when we find a default CCDB entry

Author: chiarazampolli

Common/Utils/include/CommonUtils/NameConf.h

@@ -67,6 +67,7 @@ class NameConf : public o2::conf::ConfigurableParamHelper<NameConf>
   static constexpr std::string_view CCDBMETA = "ccdb_meta";     // hardcoded
   static constexpr std::string_view CCDBQUERY = "ccdb_query";   // hardcoded
   static constexpr std::string_view CCDBRunTag = "runNumber";
+  static constexpr std::string_view CCDBDefaultEntry = "default";
 
   // Filename to store geometry file
   static std::string getGeomFileName(const std::string_view prefix = "");

Framework/Core/src/CCDBHelpers.cxx

@@ -211,6 +211,10 @@ auto populateCacheWith(std::shared_ptr<CCDBFetcherHelper> const& helper,
         // FIXME: I should send a dummy message.
         continue;
       }
+      // printing in case we find a default entry
+      if (headers.find("default") != headers.end()) {
+        LOGP(detail, "******** Default entry used for {} ********", path);
+      }
       if (etag.empty()) {
         helper->mapURL2UUID[path] = headers["ETag"]; // update uuid
         auto cacheId = allocator.adoptContainer(output, std::move(v), true, header::gSerializationMethodCCDB);