Allow to SVertexer to use global tracks only (e.g. for online mode)

Author: shahor02

Detectors/GlobalTrackingWorkflow/src/SecondaryVertexingSpec.cxx

@@ -255,7 +255,7 @@ DataProcessorSpec getSecondaryVertexingSpec(GTrackID::mask_t src, bool enableCas
     src |= (srcClus = GTrackID::getSourceMask(GTrackID::ITS));
   }
   if (GTrackID::includesDet(o2::detectors::DetID::TPC, src) && !src[GTrackID::TPC]) {
-    throw std::runtime_error("Tracks involving TPC were requested w/o requesting TPC-only tracks");
+    LOGP(warn, "Tracks involving TPC were requested w/o requesting TPC-only tracks, simplified selection will be applied");
   }
   if (src[GTrackID::TPC]) {
     srcClus |= GTrackID::getSourceMask(GTrackID::TPC);

Detectors/Vertexing/src/SVertexer.cxx

@@ -269,6 +269,9 @@ void SVertexer::updateTimeDependentParams()
   if (!updatedOnce) {
     updatedOnce = true;
     mSVParams = &SVertexerParams::Instance();
+    if (mSVParams->mExcludeTPCtracks && !mRecoCont->isTrackSourceLoaded(GIndex::TPC)) {
+      LOGP(fatal, "TPC tracks requested but not provided");
+    }
     // precalculated selection cuts
     mMinR2ToMeanVertex = mSVParams->minRToMeanVertex * mSVParams->minRToMeanVertex;
     mMaxR2ToMeanVertexCascV0 = mSVParams->maxRToMeanVertexCascV0 * mSVParams->maxRToMeanVertexCascV0;
@@ -543,8 +546,7 @@ void SVertexer::buildT2V(const o2::globaltracking::RecoContainer& recoData) // a
         }
         continue;
       }
-
-      if (!hasTPC && nITSclu < mSVParams->mITSSAminNclu && (!shortOBITSOnlyTrack || mSVParams->mRejectITSonlyOBtrack)) {
+      if ((isTPCloaded && !hasTPC) && (isITSloaded && (nITSclu < mSVParams->mITSSAminNclu && (!shortOBITSOnlyTrack || mSVParams->mRejectITSonlyOBtrack)))) {
         continue; // reject short ITS-only
       }