#include "DataFormats/PatCandidates/interface/TauPFEssential.h"

#include "DataFormats/JetReco/interface/Jet.h"

pat::tau::TauPFEssential::TauPFEssential(const reco::PFTau& tau)
    : p4Jet_(reco::Candidate::LorentzVector()),
      p4CorrJet_(reco::Candidate::LorentzVector()),
      decayMode_(tau.decayMode()),
      dxy_(0.),
      dxy_error_(1.e+3),
      hasSV_(false),
      ip3d_(0.),
      ip3d_error_(1.e+3),
      ecalEnergy_(0.),
      hcalEnergy_(0.),
      leadingTrackNormChi2_(1.e+3),
      phiAtEcalEntrance_(0.),
      etaAtEcalEntrance_(0.),
      ecalEnergyLeadChargedHadrCand_(0.),
      hcalEnergyLeadChargedHadrCand_(0.),
      etaAtEcalEntranceLeadChargedCand_(0.),
      ptLeadChargedCand_(0.),
      emFraction_(0.) {
  if (tau.jetRef().isAvailable() &&
      tau.jetRef().isNonnull()) {  // CV: add protection to ease transition to new CMSSW 4_2_x RecoTauTags
    p4Jet_ = tau.jetRef()->p4();
  }
}