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//--------------------------------------------------------------------------------------------------
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// $Id: MergerMod.h,v 1.6 2009/07/20 19:05:05 loizides Exp $
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//
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// MergerMod
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//
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// This templated module merges arbitrarily many collections of objects. It puts them into an
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// object array of the templated type.
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//
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// Authors: C.Loizides
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//--------------------------------------------------------------------------------------------------
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#ifndef MITANA_PHYSICSMOD_MERGERMOD_H
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#define MITANA_PHYSICSMOD_MERGERMOD_H
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#include "MitAna/TreeMod/interface/BaseMod.h"
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#include "MitAna/DataCont/interface/ObjArray.h"
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namespace mithep
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{
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template <class T>
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class MergerMod : public BaseMod
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{
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public:
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MergerMod(const char *name="MergerMod",
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const char *title="Merger module");
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void AddInputName(const char *n);
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const char *GetMergedName() const { return fMergedName; }
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const char *GetOutputName() const { return GetMergedName(); }
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void SetMergedName(const char *n) { fMergedName=n; }
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void SetOutputName(const char *n) { SetMergedName(n); }
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protected:
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void SlaveBegin();
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void Process();
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std::vector<std::string> fInList; //list of to be merged objects (input)
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TString fMergedName; //name of merged collection (output)
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ClassDef(MergerMod, 1) // Generic collection merging module
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};
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}
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#endif
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//--------------------------------------------------------------------------------------------------
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template <class T>
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mithep::MergerMod<T>::MergerMod<T>(const char *name, const char *title) :
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BaseMod(name,title),
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fInList(0)
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{
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// Constructor.
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}
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template <class T>
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void mithep::MergerMod<T>::AddInputName(const char *n)
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{
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// Add name to the list of input collections.
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if (!n)
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return;
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fInList.push_back(std::string(n));
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}
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//--------------------------------------------------------------------------------------------------
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template <class T>
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void mithep::MergerMod<T>::Process()
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{
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// Merge the input objects and publish merged collection.
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ObjArray<T> *colout = new mithep::ObjArray<T>(0);
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colout->SetName(GetMergedName());
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UInt_t n = fInList.size();
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for (UInt_t i=0; i<n; ++i) {
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const TObject *in = GetObjThisEvt<TObject>(fInList.at(i).c_str());
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if (!in)
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continue;
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const BaseCollection *bcol = dynamic_cast<const BaseCollection*>(in);
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if (bcol)
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colout->Add(bcol);
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else {
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const T *optr = dynamic_cast<const T*>(in);
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if (optr)
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colout->Add(optr);
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}
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}
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// attempt sorting (if implemented by underlying objects)
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colout->Sort();
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// add to event for other modules to use
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AddObjThisEvt(colout);
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}
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//--------------------------------------------------------------------------------------------------
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template <class T>
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void mithep::MergerMod<T>::SlaveBegin()
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{
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// Check if output name was set.
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if (!fMergedName.IsNull())
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return;
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SendError(kAbortModule, "SlaveBegin", "No output name given.");
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}
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