few fixes in tiered file access (#9795)

Author: jgrosseo

Framework/AnalysisSupport/src/AODJAlienReaderHelpers.cxx

@@ -257,7 +257,8 @@ AlgorithmSpec AODJAlienReaderHelpers::rootFileReaderCallback()
           std::string currentFilename(fileAndFolder.file->GetName());
           if (strcmp(fileAndFolder.file->GetEndpointUrl()->GetProtocol(), "file") == 0 && fileAndFolder.file->GetEndpointUrl()->GetFile()[0] != '/') {
             // This is not an absolute local path. Make it absolute.
-            currentFilename = gSystem->pwd() + std::string("/") + std::string(fileAndFolder.file->GetName());
+            static std::string pwd = gSystem->pwd() + std::string("/");
+            currentFilename = pwd + std::string(fileAndFolder.file->GetName());
           }
           outputs.make<std::string>(o2) = currentFilename;
         }

Framework/AnalysisSupport/src/DataInputDirector.cxx

@@ -127,7 +127,7 @@ bool DataInputDescriptor::setFile(int counter)
   mcurrentFile->SetReadaheadSize(50 * 1024 * 1024);
 
   // get the parent file map if exists
-  mParentFileMap = (TMap*)mcurrentFile->Get("parent_files"); // folder name (DF_XXX) --> parent file (absolute path)
+  mParentFileMap = (TMap*)mcurrentFile->Get("parentFiles"); // folder name (DF_XXX) --> parent file (absolute path)
   if (mParentFileMap && !mParentFileReplacement.empty()) {
     auto pos = mParentFileReplacement.find(';');
     if (pos == std::string::npos) {

Framework/Core/src/DataOutputDirector.cxx

@@ -474,7 +474,7 @@ void DataOutputDirector::closeDataFiles()
     if (filePtr) {
       if (filePtr->IsOpen() && mParentMaps[i]->GetEntries() > 0) {
         filePtr->cd("/");
-        filePtr->WriteObject(mParentMaps[i], "parent_files");
+        filePtr->WriteObject(mParentMaps[i], "parentFiles");
       }
       filePtr->Close();
     }

Framework/Core/src/WorkflowHelpers.cxx

@@ -289,6 +289,7 @@ void WorkflowHelpers::injectServiceDevices(WorkflowSpec& workflow, ConfigContext
     AlgorithmSpec::dummyAlgorithm(),
     {ConfigParamSpec{"aod-file", VariantType::String, {"Input AOD file"}},
      ConfigParamSpec{"aod-reader-json", VariantType::String, {"json configuration file"}},
+     ConfigParamSpec{"aod-parent-base-path-replacement", VariantType::String, {"Replace base path of parent files. Syntax: FROM;TO. E.g. alien:///path/in/alien;/local/path"}},
      ConfigParamSpec{"time-limit", VariantType::Int64, 0ll, {"Maximum run time limit in seconds"}},
      ConfigParamSpec{"orbit-offset-enumeration", VariantType::Int64, 0ll, {"initial value for the orbit"}},
      ConfigParamSpec{"orbit-multiplier-enumeration", VariantType::Int64, 0ll, {"multiplier to get the orbit from the counter"}},