IfPr.cpp

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#include "cafe/IfPr.hpp"
#include "cafe/ParseRun.hpp"
#include "cafe/Config.hpp"
#include "cafe/Event.hpp"

#include "TFile.h"
#include "TTreeFormula.h"

#include <iostream>
#include <vector>

namespace cafe {

    IfPr::IfPr(const char *name) 
      : Controller(name, std::list<Processor*>())
    {
        using namespace std;

        Config config(name);

        // Get select/then/else branches
        ParseRun parser;
        string pelse =  config.get("Else", "") ;
        add(new Controller((string(name) + "_Select").c_str(), parser.parse(config.get("Select", ""))));
        add(new Controller((string(name) + "_Then").c_str(), parser.parse(config.get("Then", ""))));
        if (!pelse.empty()) 
          add(new Controller((string(name) + "_Else").c_str(), parser.parse(pelse))); 

        // Be nice and tell user if he specified the .Run: entry
        if(config.get("Run","") != "") {
            err() << "IfPr[" << name << "]: .Run not used in IfPr[]. .Use 'Then:' and '.Else:' instead" << endl;
        }

        _untag = config.getVString("Untag", " ,");
        _tag = config.getVString("Tag", " ,");
    }

    IfPr::~IfPr() {}


    // Processor interface
    bool IfPr::processEvent(Event& event)
    {
        event.untag(_untag.begin(), _untag.end());
        event.tag(_tag.begin(), _tag.end());

        if(_processors.size() == 0) return true ;
        std::list<Processor*>::iterator it = _processors.begin();
        // call first subprocessor
        
        (*it)->incEventCount();
        if ((*it)->processEvent(event)) {           
          // call second subprocessor(than)
          ++it;
          (*it)->incEventCount();
          return (*it)->processEvent(event) ;
        }                 
          // call any other subprocessor, abort if
          // any of them returns false.
          ++it;
          ++it;
          while(it != _processors.end()) {
            (*it)->incEventCount();
            if(!(*it)->processEvent(event)) return false;
            ++it;
          }
        
        return true;
    }
}

ClassImp(cafe::IfPr);

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