From 0a03f0177eacdd971027cbb10ec9904cd9fe8c17 Mon Sep 17 00:00:00 2001
From: Christopher Jones <chrisdjones15@gmail.com>
Date: Wed, 5 Jan 2022 10:22:08 -0600
Subject: [PATCH] EventSetupInitTrait can now have state

- Constructor takes edm::ConsumesCollector
- init method is no longer static
- Also moved PhysicsTools/RecoAlgos modules to stream types
---
 .../CandAlgos/interface/CandCombiner.h        |  4 +-
 .../RecoAlgos/interface/CandidateProducer.h   |  4 +-
 .../AssociatedVariableCollectionSelector.h    | 10 ++-
 .../UtilAlgos/interface/EventSetupInitTrait.h | 76 ++++++++++++-------
 .../UtilAlgos/interface/ObjectSelectorBase.h  |  5 +-
 .../interface/ObjectSelectorProducer.h        |  4 +-
 .../SingleElementCollectionRefSelector.h      |  8 +-
 .../SingleElementCollectionSelector.h         |  8 +-
 .../interface/MassKinFitterCandProducer.h     |  4 +-
 .../plugins/CandCommonVertexFitter.h          |  8 +-
 .../plugins/CandKinematicVertexFitter.h       | 16 ++--
 .../plugins/ConstrainedFitCandProducer.h      |  8 +-
 12 files changed, 95 insertions(+), 60 deletions(-)

diff --git a/CommonTools/CandAlgos/interface/CandCombiner.h b/CommonTools/CandAlgos/interface/CandCombiner.h
index ac93f2a9b3b49..bdc09f03082c0 100644
--- a/CommonTools/CandAlgos/interface/CandCombiner.h
+++ b/CommonTools/CandAlgos/interface/CandCombiner.h
@@ -131,6 +131,7 @@ namespace reco {
       /// constructor from parameter settypedef
       explicit CandCombiner(const edm::ParameterSet& cfg)
           : CandCombinerBase(cfg),
+            combinerInit_(consumesCollector()),
             combiner_(reco::modules::make<Selector>(cfg, consumesCollector()),
                       reco::modules::make<PairSelector>(cfg),
                       Setup(cfg),
@@ -146,7 +147,7 @@ namespace reco {
     private:
       /// process an event
       void produce(edm::Event& evt, const edm::EventSetup& es) override {
-        Init::init(combiner_.setup(), evt, es);
+        combinerInit_.init(combiner_.setup(), evt, es);
         int n = labels_.size();
         std::vector<edm::Handle<CandidateView> > colls(n);
         for (int i = 0; i < n; ++i)
@@ -168,6 +169,7 @@ namespace reco {
         evt.put(std::move(out));
       }
       /// combiner utility
+      Init combinerInit_;
       ::CandCombiner<Selector, PairSelector, Cloner, OutputCollection, Setup> combiner_;
 
       RoleNames names_;
diff --git a/CommonTools/RecoAlgos/interface/CandidateProducer.h b/CommonTools/RecoAlgos/interface/CandidateProducer.h
index b1b2963bb30db..5e1bcb2f82d92 100644
--- a/CommonTools/RecoAlgos/interface/CandidateProducer.h
+++ b/CommonTools/RecoAlgos/interface/CandidateProducer.h
@@ -73,6 +73,7 @@ class CandidateProducer : public edm::stream::EDProducer<> {
   CandidateProducer(const edm::ParameterSet& cfg)
       : srcToken_(consumes<TColl>(cfg.template getParameter<edm::InputTag>("src"))),
         converter_(cfg, consumesCollector()),
+        selectorInit_(consumesCollector()),
         selector_(reco::modules::make<Selector>(cfg, consumesCollector())),
         initialized_(false) {
     produces<CColl>();
@@ -92,7 +93,7 @@ class CandidateProducer : public edm::stream::EDProducer<> {
   void produce(edm::Event& evt, const edm::EventSetup& es) override {
     edm::Handle<TColl> src;
     evt.getByToken(srcToken_, src);
-    Init::init(selector_, evt, es);
+    selectorInit_.init(selector_, evt, es);
     ::helper::MasterCollection<TColl> master(src, evt);
     std::unique_ptr<CColl> cands(new CColl);
     if (!src->empty()) {
@@ -110,6 +111,7 @@ class CandidateProducer : public edm::stream::EDProducer<> {
   /// converter helper
   Conv converter_;
   /// selector
+  Init selectorInit_;
   Selector selector_;
   /// particles initialized?
   bool initialized_;
diff --git a/CommonTools/UtilAlgos/interface/AssociatedVariableCollectionSelector.h b/CommonTools/UtilAlgos/interface/AssociatedVariableCollectionSelector.h
index 46d67a6ff47a5..1bd74a740e2e9 100644
--- a/CommonTools/UtilAlgos/interface/AssociatedVariableCollectionSelector.h
+++ b/CommonTools/UtilAlgos/interface/AssociatedVariableCollectionSelector.h
@@ -66,10 +66,11 @@ namespace reco {
   namespace modules {
     template <typename S>
     struct AssociatedVariableCollectionSelectorEventSetupInit {
-      static void init(S& s, const edm::Event& evt, const edm::EventSetup& es) {
-        typedef typename EventSetupInit<typename S::selector>::type ESI;
-        ESI::init(s.select_, evt, es);
-      }
+      explicit AssociatedVariableCollectionSelectorEventSetupInit(edm::ConsumesCollector iC) : esi_(iC) {}
+
+      void init(S& s, const edm::Event& evt, const edm::EventSetup& es) { esi_.init(s.select_, evt, es); }
+      typedef typename EventSetupInit<typename S::selector>::type ESI;
+      ESI esi_;
     };
 
     template <typename I, typename V, typename S, typename O, typename C, typename R>
@@ -77,6 +78,7 @@ namespace reco {
       typedef AssociatedVariableCollectionSelectorEventSetupInit<AssociatedVariableCollectionSelector<I, V, S, O, C, R> >
           type;
     };
+
   }  // namespace modules
 }  // namespace reco
 
diff --git a/CommonTools/UtilAlgos/interface/EventSetupInitTrait.h b/CommonTools/UtilAlgos/interface/EventSetupInitTrait.h
index 52acbf4d23132..4cd4a78b6501d 100644
--- a/CommonTools/UtilAlgos/interface/EventSetupInitTrait.h
+++ b/CommonTools/UtilAlgos/interface/EventSetupInitTrait.h
@@ -2,6 +2,7 @@
 #define UtilAlgos_EventSetupInitTrait_h
 #include "CommonTools/UtilAlgos/interface/AndSelector.h"
 #include "CommonTools/UtilAlgos/interface/OrSelector.h"
+#include "FWCore/Framework/interface/ConsumesCollector.h"
 
 namespace edm {
   class EventSetup;
@@ -17,14 +18,18 @@ namespace reco {
     /// take no action (default)
     template <typename T>
     struct NoEventSetupInit {
-      static void init(T&, const edm::Event&, const edm::EventSetup&) {}
+      explicit NoEventSetupInit(edm::ConsumesCollector) {}
+      NoEventSetupInit() = delete;
+      void init(T&, const edm::Event&, const edm::EventSetup&) {}
     };
 
     /// implement common interface defined in:
     /// https://twiki.cern.ch/twiki/bin/view/CMS/SelectorInterface
     struct CommonSelectorEventSetupInit {
+      explicit CommonSelectorEventSetupInit(edm::ConsumesCollector) {}
+      CommonSelectorEventSetupInit() = delete;
       template <typename Selector>
-      static void init(Selector& selector, const edm::Event& evt, const edm::EventSetup& es) {
+      void init(Selector& selector, const edm::Event& evt, const edm::EventSetup& es) {
         selector.newEvent(evt, es);
       }
     };
@@ -40,51 +45,68 @@ namespace reco {
               typename T4 = helpers::NullAndOperand,
               typename T5 = helpers::NullAndOperand>
     struct CombinedEventSetupInit {
+      explicit CombinedEventSetupInit(edm::ConsumesCollector iC) : t1_(iC), t2_(iC), t3_(iC), t4_(iC), t5_(iC) {}
       template <template <typename, typename, typename, typename, typename> class SelectorT>
-      static void init(SelectorT<T1, T2, T3, T4, T5>& selector, const edm::Event& evt, const edm::EventSetup& es) {
-        EventSetupInit<T1>::type::init(selector.s1_, evt, es);
-        EventSetupInit<T2>::type::init(selector.s2_, evt, es);
-        EventSetupInit<T3>::type::init(selector.s3_, evt, es);
-        EventSetupInit<T4>::type::init(selector.s4_, evt, es);
-        EventSetupInit<T5>::type::init(selector.s5_, evt, es);
+      void init(SelectorT<T1, T2, T3, T4, T5>& selector, const edm::Event& evt, const edm::EventSetup& es) {
+        t1_.init(selector.s1_, evt, es);
+        t2_.init(selector.s2_, evt, es);
+        t3_.init(selector.s3_, evt, es);
+        t4_.init(selector.s4_, evt, es);
+        t5_.init(selector.s5_, evt, es);
       }
+      typename EventSetupInit<T1>::type t1_;
+      typename EventSetupInit<T2>::type t2_;
+      typename EventSetupInit<T3>::type t3_;
+      typename EventSetupInit<T4>::type t4_;
+      typename EventSetupInit<T5>::type t5_;
     };
 
     template <typename T1, typename T2, typename T3, typename T4>
     struct CombinedEventSetupInit<T1, T2, T3, T4, helpers::NullAndOperand> {
+      explicit CombinedEventSetupInit(edm::ConsumesCollector iC) : t1_(iC), t2_(iC), t3_(iC), t4_(iC) {}
       template <template <typename, typename, typename, typename, typename> class SelectorT>
-      static void init(SelectorT<T1, T2, T3, T4, helpers::NullAndOperand>& selector,
-                       const edm::Event& evt,
-                       const edm::EventSetup& es) {
-        EventSetupInit<T1>::type::init(selector.s1_, evt, es);
-        EventSetupInit<T2>::type::init(selector.s2_, evt, es);
-        EventSetupInit<T3>::type::init(selector.s3_, evt, es);
-        EventSetupInit<T4>::type::init(selector.s4_, evt, es);
+      void init(SelectorT<T1, T2, T3, T4, helpers::NullAndOperand>& selector,
+                const edm::Event& evt,
+                const edm::EventSetup& es) {
+        t1_.init(selector.s1_, evt, es);
+        t2_.init(selector.s2_, evt, es);
+        t3_.init(selector.s3_, evt, es);
+        t4_.init(selector.s4_, evt, es);
       }
+      typename EventSetupInit<T1>::type t1_;
+      typename EventSetupInit<T2>::type t2_;
+      typename EventSetupInit<T3>::type t3_;
+      typename EventSetupInit<T4>::type t4_;
     };
 
     template <typename T1, typename T2, typename T3>
     struct CombinedEventSetupInit<T1, T2, T3, helpers::NullAndOperand, helpers::NullAndOperand> {
+      explicit CombinedEventSetupInit(edm::ConsumesCollector iC) : t1_(iC), t2_(iC), t3_(iC) {}
       template <template <typename, typename, typename, typename, typename> class SelectorT>
-      static void init(SelectorT<T1, T2, T3, helpers::NullAndOperand, helpers::NullAndOperand>& selector,
-                       const edm::Event& evt,
-                       const edm::EventSetup& es) {
-        EventSetupInit<T1>::type::init(selector.s1_, evt, es);
-        EventSetupInit<T2>::type::init(selector.s2_, evt, es);
-        EventSetupInit<T3>::type::init(selector.s3_, evt, es);
+      void init(SelectorT<T1, T2, T3, helpers::NullAndOperand, helpers::NullAndOperand>& selector,
+                const edm::Event& evt,
+                const edm::EventSetup& es) {
+        t1_.init(selector.s1_, evt, es);
+        t2_.init(selector.s2_, evt, es);
+        t3_.init(selector.s3_, evt, es);
       }
+      typename EventSetupInit<T1>::type t1_;
+      typename EventSetupInit<T2>::type t2_;
+      typename EventSetupInit<T3>::type t3_;
     };
 
     template <typename T1, typename T2>
     struct CombinedEventSetupInit<T1, T2, helpers::NullAndOperand, helpers::NullAndOperand, helpers::NullAndOperand> {
+      explicit CombinedEventSetupInit(edm::ConsumesCollector iC) : t1_(iC), t2_(iC) {}
       template <template <typename, typename, typename, typename, typename> class SelectorT>
-      static void init(
-          SelectorT<T1, T2, helpers::NullAndOperand, helpers::NullAndOperand, helpers::NullAndOperand>& selector,
-          const edm::Event& evt,
-          const edm::EventSetup& es) {
-        EventSetupInit<T1>::type::init(selector.s1_, evt, es);
-        EventSetupInit<T2>::type::init(selector.s2_, evt, es);
+      void init(SelectorT<T1, T2, helpers::NullAndOperand, helpers::NullAndOperand, helpers::NullAndOperand>& selector,
+                const edm::Event& evt,
+                const edm::EventSetup& es) {
+        t1_.init(selector.s1_, evt, es);
+        t2_.init(selector.s2_, evt, es);
       }
+      typename EventSetupInit<T1>::type t1_;
+      typename EventSetupInit<T2>::type t2_;
     };
 
     template <typename T1, typename T2, typename T3, typename T4, typename T5>
diff --git a/CommonTools/UtilAlgos/interface/ObjectSelectorBase.h b/CommonTools/UtilAlgos/interface/ObjectSelectorBase.h
index 06e6cff0b0632..d8c09a5b57161 100644
--- a/CommonTools/UtilAlgos/interface/ObjectSelectorBase.h
+++ b/CommonTools/UtilAlgos/interface/ObjectSelectorBase.h
@@ -38,6 +38,7 @@ class ObjectSelectorBase : public Base {
         srcToken_(
             this->template consumes<typename Selector::collection>(cfg.template getParameter<edm::InputTag>("src"))),
         filter_(false),
+        selectorInit_(this->consumesCollector()),
         selector_(cfg, this->consumesCollector()),
         sizeSelector_(reco::modules::make<SizeSelector>(cfg)),
         postProcessor_(cfg, this->consumesCollector()) {
@@ -54,8 +55,7 @@ class ObjectSelectorBase : public Base {
 private:
   /// process one event
   bool filter(edm::Event& evt, const edm::EventSetup& es) override {
-    Init::init(selector_, evt, es);
-    using namespace std;
+    selectorInit_.init(selector_, evt, es);
     edm::Handle<typename Selector::collection> source;
     evt.getByToken(srcToken_, source);
     StoreManager manager(source);
@@ -71,6 +71,7 @@ class ObjectSelectorBase : public Base {
   /// filter event
   bool filter_;
   /// Object collection selector
+  Init selectorInit_;
   Selector selector_;
   /// selected object collection size selector
   SizeSelector sizeSelector_;
diff --git a/CommonTools/UtilAlgos/interface/ObjectSelectorProducer.h b/CommonTools/UtilAlgos/interface/ObjectSelectorProducer.h
index e1d371ce01130..5307c28780971 100644
--- a/CommonTools/UtilAlgos/interface/ObjectSelectorProducer.h
+++ b/CommonTools/UtilAlgos/interface/ObjectSelectorProducer.h
@@ -34,6 +34,7 @@ class ObjectSelectorProducer : public Base {
       : Base(cfg),
         srcToken_(
             this->template consumes<typename Selector::collection>(cfg.template getParameter<edm::InputTag>("src"))),
+        selectorInit_(this->consumesCollector()),
         selector_(cfg, this->consumesCollector()),
         postProcessor_(cfg, this->consumesCollector()) {
     postProcessor_.init(*this);
@@ -44,7 +45,7 @@ class ObjectSelectorProducer : public Base {
 private:
   /// process one event
   void produce(edm::Event& evt, const edm::EventSetup& es) override {
-    Init::init(selector_, evt, es);
+    selectorInit_.init(selector_, evt, es);
     edm::Handle<typename Selector::collection> source;
     evt.getByToken(srcToken_, source);
     StoreManager manager(source);
@@ -56,6 +57,7 @@ class ObjectSelectorProducer : public Base {
   /// source collection label
   edm::EDGetTokenT<typename Selector::collection> srcToken_;
   /// Object collection selector
+  Init selectorInit_;
   Selector selector_;
   /// post processor
   PostProcessor postProcessor_;
diff --git a/CommonTools/UtilAlgos/interface/SingleElementCollectionRefSelector.h b/CommonTools/UtilAlgos/interface/SingleElementCollectionRefSelector.h
index 486b7451fe8fa..242ebb93c863f 100644
--- a/CommonTools/UtilAlgos/interface/SingleElementCollectionRefSelector.h
+++ b/CommonTools/UtilAlgos/interface/SingleElementCollectionRefSelector.h
@@ -66,10 +66,10 @@ namespace reco {
   namespace modules {
     template <typename S>
     struct SingleElementCollectionRefSelectorEventSetupInit {
-      static void init(S& s, const edm::Event& ev, const edm::EventSetup& es) {
-        typedef typename EventSetupInit<typename S::selector>::type ESI;
-        ESI::init(s.select_, ev, es);
-      }
+      explicit SingleElementCollectionRefSelectorEventSetupInit(edm::ConsumesCollector iC) : esi_(iC) {}
+      void init(S& s, const edm::Event& ev, const edm::EventSetup& es) { esi_.init(s.select_, ev, es); }
+      typedef typename EventSetupInit<typename S::selector>::type ESI;
+      ESI esi_;
     };
 
     template <typename I, typename S, typename O, typename C, typename R>
diff --git a/CommonTools/UtilAlgos/interface/SingleElementCollectionSelector.h b/CommonTools/UtilAlgos/interface/SingleElementCollectionSelector.h
index 4868634d88563..9850c0f832e61 100644
--- a/CommonTools/UtilAlgos/interface/SingleElementCollectionSelector.h
+++ b/CommonTools/UtilAlgos/interface/SingleElementCollectionSelector.h
@@ -64,10 +64,10 @@ namespace reco {
   namespace modules {
     template <typename S>
     struct SingleElementCollectionSelectorEventSetupInit {
-      static void init(S& s, const edm::Event& ev, const edm::EventSetup& es) {
-        typedef typename EventSetupInit<typename S::selector>::type ESI;
-        ESI::init(s.select_, ev, es);
-      }
+      explicit SingleElementCollectionSelectorEventSetupInit(edm::ConsumesCollector iC) : esi_(iC) {}
+      typedef typename EventSetupInit<typename S::selector>::type ESI;
+      void init(S& s, const edm::Event& ev, const edm::EventSetup& es) { esi_.init(s.select_, ev, es); }
+      ESI esi_;
     };
 
     template <typename I, typename S, typename O, typename C, typename R>
diff --git a/PhysicsTools/RecoAlgos/interface/MassKinFitterCandProducer.h b/PhysicsTools/RecoAlgos/interface/MassKinFitterCandProducer.h
index 13b6b833f0a24..10b89aa4272b1 100644
--- a/PhysicsTools/RecoAlgos/interface/MassKinFitterCandProducer.h
+++ b/PhysicsTools/RecoAlgos/interface/MassKinFitterCandProducer.h
@@ -6,12 +6,12 @@
  *
  */
 #include "FWCore/Utilities/interface/InputTag.h"
-#include "FWCore/Framework/interface/EDProducer.h"
+#include "FWCore/Framework/interface/stream/EDProducer.h"
 #include "PhysicsTools/RecoUtils/interface/CandMassKinFitter.h"
 
 #include "DataFormats/Candidate/interface/Candidate.h"
 
-class MassKinFitterCandProducer : public edm::EDProducer {
+class MassKinFitterCandProducer : public edm::stream::EDProducer<> {
 public:
   explicit MassKinFitterCandProducer(const edm::ParameterSet &, CandMassKinFitter * = nullptr);
 
diff --git a/PhysicsTools/RecoAlgos/plugins/CandCommonVertexFitter.h b/PhysicsTools/RecoAlgos/plugins/CandCommonVertexFitter.h
index 17c56aeeb2d0d..0c27bdcbf32a4 100644
--- a/PhysicsTools/RecoAlgos/plugins/CandCommonVertexFitter.h
+++ b/PhysicsTools/RecoAlgos/plugins/CandCommonVertexFitter.h
@@ -10,11 +10,11 @@ namespace reco {
   namespace modules {
     template <typename Fitter>
     struct CandVertexFitterEventSetupInit {
-      static void init(CandCommonVertexFitter<Fitter>& fitter, const edm::Event& evt, const edm::EventSetup& es) {
-        edm::ESHandle<MagneticField> h;
-        es.get<IdealMagneticFieldRecord>().get(h);
-        fitter.set(h.product());
+      explicit CandVertexFitterEventSetupInit(edm::ConsumesCollector iC) : magToken_(iC.esConsumes()) {}
+      void init(CandCommonVertexFitter<Fitter>& fitter, const edm::Event& evt, const edm::EventSetup& es) {
+        fitter.set(&es.getData(magToken_));
       }
+      edm::ESGetToken<MagneticField, IdealMagneticFieldRecord> magToken_;
     };
 
     template <typename Fitter>
diff --git a/PhysicsTools/RecoAlgos/plugins/CandKinematicVertexFitter.h b/PhysicsTools/RecoAlgos/plugins/CandKinematicVertexFitter.h
index e81bc15ff93af..cd5c4c11baf64 100644
--- a/PhysicsTools/RecoAlgos/plugins/CandKinematicVertexFitter.h
+++ b/PhysicsTools/RecoAlgos/plugins/CandKinematicVertexFitter.h
@@ -10,14 +10,16 @@
 namespace reco {
   namespace modules {
     struct CandKinematicVertexFitterEventSetupInit {
-      static void init(CandKinematicVertexFitter& fitter, const edm::Event& evt, const edm::EventSetup& es) {
-        edm::ESHandle<MagneticField> h;
-        es.get<IdealMagneticFieldRecord>().get(h);
-        fitter.set(h.product());
-        edm::ESHandle<ParticleDataTable> pdt;
-        es.getData(pdt);
-        fitter.set(pdt.product());
+      explicit CandKinematicVertexFitterEventSetupInit(edm::ConsumesCollector iC)
+          : magToken_(iC.esConsumes()), pdtToken_(iC.esConsumes()) {}
+
+      void init(CandKinematicVertexFitter& fitter, const edm::Event& evt, const edm::EventSetup& es) {
+        fitter.set(&es.getData(magToken_));
+        fitter.set(&es.getData(pdtToken_));
       }
+
+      edm::ESGetToken<MagneticField, IdealMagneticFieldRecord> magToken_;
+      edm::ESGetToken<ParticleDataTable, edm::DefaultRecord> pdtToken_;
     };
 
     template <>
diff --git a/PhysicsTools/RecoAlgos/plugins/ConstrainedFitCandProducer.h b/PhysicsTools/RecoAlgos/plugins/ConstrainedFitCandProducer.h
index 7831e28d422a5..1640d0dd3645f 100644
--- a/PhysicsTools/RecoAlgos/plugins/ConstrainedFitCandProducer.h
+++ b/PhysicsTools/RecoAlgos/plugins/ConstrainedFitCandProducer.h
@@ -5,7 +5,7 @@
  * \author Luca Lista, INFN
  *
  */
-#include "FWCore/Framework/interface/EDProducer.h"
+#include "FWCore/Framework/interface/stream/EDProducer.h"
 #include "FWCore/Utilities/interface/InputTag.h"
 #include "CommonTools/UtilAlgos/interface/ParameterAdapter.h"
 #include "CommonTools/UtilAlgos/interface/EventSetupInitTrait.h"
@@ -17,7 +17,7 @@ template <typename Fitter,
           typename InputCollection = reco::CandidateCollection,
           typename OutputCollection = InputCollection,
           typename Init = typename ::reco::modules::EventSetupInit<Fitter>::type>
-class ConstrainedFitCandProducer : public edm::EDProducer {
+class ConstrainedFitCandProducer : public edm::stream::EDProducer<> {
 public:
   explicit ConstrainedFitCandProducer(const edm::ParameterSet&);
 
@@ -27,6 +27,7 @@ class ConstrainedFitCandProducer : public edm::EDProducer {
   bool setMassConstraint_;
   bool setPdgId_;
   int pdgId_;
+  Init fitterInit_;
   Fitter fitter_;
   void produce(edm::Event&, const edm::EventSetup&) override;
 };
@@ -47,6 +48,7 @@ ConstrainedFitCandProducer<Fitter, InputCollection, OutputCollection, Init>::Con
       setLongLived_(false),
       setMassConstraint_(false),
       setPdgId_(false),
+      fitterInit_(consumesCollector()),
       fitter_(reco::modules::make<Fitter>(cfg)) {
   produces<OutputCollection>();
   std::string alias(cfg.getParameter<std::string>("@module_label"));
@@ -92,7 +94,7 @@ namespace reco {
 template <typename Fitter, typename InputCollection, typename OutputCollection, typename Init>
 void ConstrainedFitCandProducer<Fitter, InputCollection, OutputCollection, Init>::produce(edm::Event& evt,
                                                                                           const edm::EventSetup& es) {
-  Init::init(fitter_, evt, es);
+  fitterInit_.init(fitter_, evt, es);
   edm::Handle<InputCollection> cands;
   evt.getByToken(srcToken_, cands);
   auto fitted = std::make_unique<OutputCollection>();