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newCollections.cxx
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80 lines (70 loc) · 2.24 KB
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// Copyright CERN and copyright holders of ALICE O2. This software is
// distributed under the terms of the GNU General Public License v3 (GPL
// Version 3), copied verbatim in the file "COPYING".
//
// See http://alice-o2.web.cern.ch/license for full licensing information.
//
// 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.
//
/// \brief Declaration and production of new tables.
/// \author
/// \since
#include "Framework/runDataProcessing.h"
#include "Framework/AnalysisTask.h"
// define columns in a sub-namespace of o2::aod
// and tables in namespace o2::aod
namespace o2::aod
{
namespace etaphi
{
DECLARE_SOA_COLUMN(Eta, eta, float);
DECLARE_SOA_COLUMN(Phi, phi, float);
} // namespace etaphi
DECLARE_SOA_TABLE(EtaPhi, "AOD", "ETAPHI",
etaphi::Eta, etaphi::Phi);
} // namespace o2::aod
using namespace o2;
using namespace o2::framework;
struct ATask {
// declare production of table etaphi
Produces<aod::EtaPhi> etaphi;
void process(aod::Tracks const& tracks)
{
for (auto& track : tracks) {
float phi = asin(track.snp()) + track.alpha() + static_cast<float>(M_PI);
float eta = log(tan(0.25f * static_cast<float>(M_PI) - 0.5f * atan(track.tgl())));
// update the table etaphi
etaphi(phi, eta);
}
}
};
struct BTask {
// consume the table produced in ATask
// process the entire table in one step
void process(aod::EtaPhi const& etaPhis)
{
LOGF(INFO, "Number of etaPhis: %d", etaPhis.size());
for (auto& etaPhi : etaPhis) {
LOGF(INFO, "(%f, %f)", etaPhi.eta(), etaPhi.phi());
}
}
};
struct CTask {
using EtaPhiRow = aod::EtaPhi::iterator;
// consume the table produced in ATask
// process the table row by row
void process(EtaPhiRow const& etaPhi)
{
LOGF(INFO, "(%f, %f)", etaPhi.eta(), etaPhi.phi());
}
};
WorkflowSpec defineDataProcessing(ConfigContext const& cfgc)
{
return WorkflowSpec{
adaptAnalysisTask<ATask>(cfgc, TaskName{"new-collections-tutorial_A"}),
adaptAnalysisTask<BTask>(cfgc, TaskName{"new-collections-tutorial_B"}),
adaptAnalysisTask<CTask>(cfgc, TaskName{"new-collections-tutorial_C"}),
};
}