TreeMod/src/OutputMod.cc

// $Id: OutputMod.cc,v 1.15 2009/07/17 20:47:43 loizides Exp $

#include "MitAna/TreeMod/interface/OutputMod.h"
#include "MitAna/TreeMod/interface/HLTFwkMod.h"
#include "MitAna/DataUtil/interface/Debug.h"
#include "MitAna/DataTree/interface/BranchTable.h"
#include "MitAna/DataTree/interface/EventHeaderCol.h"
#include "MitAna/DataTree/interface/Names.h"
#include "MitAna/DataUtil/interface/TreeWriter.h"
#include "MitAna/TreeMod/interface/TreeBranchLoader.h"

using namespace mithep;
using namespace std;

ClassImp(mithep::OutputMod)

//--------------------------------------------------------------------------------------------------
OutputMod::OutputMod(const char *name, const char *title) : 
  BaseMod(name,title),
  fTreeName(Names::gkEvtTreeName),
  fPrefix("skimtest"),
  fPathName("."),
  fMaxSize(1024),
  fCompLevel(9),
  fSplitLevel(99),
  fBranchSize(16*1024),
  fDoReset(kFALSE),
  fCheckBrDep(kTRUE),
  fUseBrDep(kTRUE),
  fCheckTamBr(kTRUE),
  fKeepTamBr(kFALSE),
  fTreeWriter(0),
  fEventHeader(0),
  fAllEventHeader(0),
  fRunInfo(0),
  fLaHeader(0),
  fBranchTable(0),
  fBranches(0),
  fNBranchesMax(1024),
  fRunTree(0),
  fLATree(0),
  fAllTree(0),
  fSkimmedIn(0),
  fHltTree(0),
  fHLTTab(new vector<string>),
  fHLTLab(new vector<string>),
  fRunEntries(0),
  fHltEntries(0),
  fFileNum(-1),
  fLastWrittenEvt(-1),
  fLastSeenEvt(-1),
  fCounter(0)
{
  // Constructor.
}

//--------------------------------------------------------------------------------------------------
void OutputMod::BeginRun()
{
  // Create HLT tree if HLTFwkMod is being run.

  if (!HasHLTInfo())
    return;

  if (!fHltTree) {
    HLTFwkMod *hm = const_cast<HLTFwkMod*>(GetHltFwkMod());
    fTreeWriter->AddBranchToTree(hm->HLTTreeName(), hm->HLTTabName(), 
                                 TClass::GetClass(typeid(*fHLTTab))->GetName(), 
                                 &fHLTTab, 32000, 0);
    fTreeWriter->AddBranchToTree(hm->HLTTreeName(), hm->HLTLabName(), 
                                 TClass::GetClass(typeid(*fHLTLab))->GetName(), 
                                 &fHLTLab, 32000, 0);
    fTreeWriter->SetAutoFill(hm->HLTTreeName(), 0);
    fHltTree = fTreeWriter->GetTree(hm->HLTTreeName());
  }
}

//--------------------------------------------------------------------------------------------------
void OutputMod::CheckAndAddBranch(const char *bname, const char *cname)
{
  // Check if the given branch should be kept or dropped. 

  if (IsAcceptedBranch(bname)) 
    return;

  // populate regular expression list if this was not yet done
  if (fCmdReList.size() != fCmdList.size()) {
    for (UInt_t i=0; i<fCmdList.size(); ++i) {
      const char *ptr = fCmdList.at(i).c_str();
      fCmdReList.push_back(TRegexp(ptr+5,kTRUE));
      if (ptr[0]=='k') 
        fCmdDeList.push_back(kTRUE);
      else 
        fCmdDeList.push_back(kFALSE);
    }
  }

  // decide whether given branch name should be kept or dropped
  TString brname(bname);
  Bool_t decision       = kFALSE;
  Bool_t decision_found = kFALSE;

  for (UInt_t i=0; i<fCmdList.size(); ++i) {
    TRegexp &re(fCmdReList.at(i));
    if (brname.Index(re) == kNPOS)
      continue;
    decision = fCmdDeList.at(i);
    decision_found = kTRUE;
  }

  if (!decision_found) { // no decision found: still drop branch
    Warning("CheckAndAddBranch", 
            "No decision found for branch '%s' and class '%s'. Branch therefore dropped!",
            bname, cname);
    return;
  }

  if (!decision) { // drop branch according to request
    Info("CheckAndAddBranch", 
         "Dropped branch '%s' and class '%s'", bname, cname);
    return;
  }

  // add branch to accepted branch list
  Info("CheckAndAddBranch", 
       "Kept branch '%s' and class '%s'", bname, cname);

  fBrNameList.push_back(string(bname));
  fBrClassList.push_back(string(cname));
}

//--------------------------------------------------------------------------------------------------
Bool_t OutputMod::CheckAndResolveBranchDep()
{
  // Checks dependency in BranchTable. Resolve dependency automatically if fUserBrDep is kTRUE.

  TFile *cfile = const_cast<TFile*>(GetSel()->GetCurrentFile());
  if (!cfile) {
    SendError(kAbortAnalysis, "CheckAndResolveBranchDep", "Could not get pointer to current file!");
    return kFALSE;
  }

  BranchTable *br = dynamic_cast<BranchTable*>(cfile->Get(Names::gkBranchTable));
  if (!br) {
    SendError(kAbortAnalysis, "CheckAndResolveBranchDep", "Could not get pointer to branch table!");
    return kFALSE;
  }

  TList *blist = br->GetBranches();
  if (!blist) {
    SendError(kAbortAnalysis, "CheckAndResolveBranchDep", "Could not get list of branches!");
    return kFALSE;
  }

  fBranchTable = new BranchTable;
  fBranchTable->SetName(Names::gkBranchTable);
  fBranchTable->SetOwner();

  TList sht;
  sht.SetOwner(kTRUE);
  for (UInt_t i=0; i<fBrNameList.size(); ++i) {
    sht.Add(new TObjString(fBrNameList.at(i).c_str()));
  }

  for (UInt_t i=0; i<fBrNameList.size(); ++i) {
    TString brname(fBrNameList.at(i));
    if (!blist->FindObject(brname))
      continue;
    TList *bdeps = br->GetDepBranches(brname);
    if (!bdeps)
      continue;

    // check dependency
    TIter iter(bdeps->MakeIterator());
    const TObjString *n = dynamic_cast<const TObjString*>(iter.Next());
    while (n) {
      if (sht.FindObject(n->GetName())) {
        // dependent branch is already accepted
        fBranchTable->Add(new BranchName(brname,n->GetName()));
      } else {
        if (fUseBrDep) {
          const TObjArray *arr = GetSel()->GetTree()->GetTree()->GetListOfBranches();
          TBranch *br = dynamic_cast<TBranch*>(arr->FindObject(n->GetName()));
          if (!br) {
            Error("CheckAndResolveBranchDep", 
                  "Could not get branch '%s' to resolve dependency for branch '%s'", 
               n->GetName(), brname.Data());
          } else {
            Info("CheckAndResolveBranchDep", 
                 "Adding branch '%s' to resolve dependency for branch '%s'", 
                 n->GetName(), brname.Data());
            fBrNameList.push_back(string(n->GetName()));
            fBrClassList.push_back(br->GetClassName());
            sht.Add(new TObjString(n->GetName()));
            fBranchTable->Add(new BranchName(brname,n->GetName()));
          } 
        } else {
          Warning("CheckAndResolveBranchDep", 
                  "Unresolved dependency of branch '%s' and '%s' ",
                  n->GetName(), brname.Data());
        }
      } 
      n = dynamic_cast<const TObjString*>(iter.Next());
    }
    delete bdeps;
  }
  delete blist;
  return kTRUE;
}

//--------------------------------------------------------------------------------------------------
void OutputMod::CheckAndResolveTAMDep(Bool_t solve) 
{
  // Check if TAM has loaded additional branches. If requested try to solve the the dependency
  // by adding the branch to the list of branches.

  const THashTable &ht = GetSel()->GetBranchTable();

  TIter iter(ht.MakeIterator());
  const TAMBranchInfo *next = dynamic_cast<const TAMBranchInfo*>(iter.Next());

  while (next) {
    const TAMBranchInfo *cur = next;
    next = dynamic_cast<const TAMBranchInfo*>(iter.Next());
    Bool_t isloaded = cur->IsLoaded();
    if (!isloaded)
      continue;

    const char *bname = cur->GetName();
    if (IsAcceptedBranch(bname))
      continue;

    TreeBranchLoader *loader = dynamic_cast<TreeBranchLoader*>(cur->GetLoader());
    if (!loader) 
      continue;

    TBranch *br = loader->GetBranch();
    if (!br) 
      continue;

    const char *cname = br->GetClassName();

    if (solve) {
      Info("CheckAndResolveTAMDep", 
           "Resolving dependency for loaded branch '%s' and class '%s'", bname,cname);

      fBrNameList.push_back(string(bname));
      fBrClassList.push_back(string(cname));
      fBranches[GetNBranches()-1] = reinterpret_cast<TObject*>(loader->GetAddress());

    } else {
      Warning("CheckAndResolveTAMDep", 
              "Unresolved dependency for loaded branch '%s' and class '%s'",
              bname,cname);
    }
  }
}

//--------------------------------------------------------------------------------------------------
void OutputMod::EndRun()
{
  // Nothing to be done at this point.
}

//--------------------------------------------------------------------------------------------------
void OutputMod::FillAllEventHeader(Bool_t isremoved)
{
  // Fill event header into the all-event-header tree.

  if (!fTreeWriter->BeginEvent(kFALSE)) {
    SendError(kAbortAnalysis, "FillAllEventHeader", "Begin event failed!");
    return;
  }

  if (fSkimmedIn) { // copy alread skimmed headers if any there
    const UInt_t n = fSkimmedIn->GetEntries();
    for(UInt_t i=0; i<n; ++i) {
      const EventHeader *eh = fSkimmedIn->At(i);
      fAllEventHeader->SetEvtNum(eh->EvtNum());
      fAllEventHeader->SetLumiSec(eh->LumiSec());
      fAllEventHeader->SetRunNum(eh->RunNum());
      fAllEventHeader->SetRunEntry(eh->RunEntry());
      fAllEventHeader->SetSkimmed(eh->Skimmed()+1);
      fAllTree->Fill();
    }
  }

  const EventHeader *eh = GetEventHeader();
  fAllEventHeader->SetEvtNum(eh->EvtNum());
  fAllEventHeader->SetLumiSec(eh->LumiSec());
  fAllEventHeader->SetRunNum(eh->RunNum());
  if (isremoved) {
    fAllEventHeader->SetRunEntry(-1);
    fAllEventHeader->SetSkimmed(eh->Skimmed()+1);
  } else {
    fAllEventHeader->SetRunEntry(eh->RunEntry());
    fAllEventHeader->SetSkimmed(eh->Skimmed());
  }

  fAllTree->Fill();
}

//--------------------------------------------------------------------------------------------------
void OutputMod::FillHltInfo()
{
  // Write HLT trigger table if needed.

  if (!fHltTree) 
    return;

  HLTFwkMod *hm = const_cast<HLTFwkMod*>(GetHltFwkMod());
  vector<string> *trigtable = hm->fHLTTab;
  vector<string> *labels = hm->fHLTLab;

  Bool_t doCopy = kFALSE;
  if (fHLTTab->size()==0) {
    doCopy = kTRUE;
  } else {
    // check if existing table contains all necessary paths: 
    // if so keep it, otherwise store the new one  

    if ((fHLTTab->size() != trigtable->size()) || 
        (fHLTLab->size() != labels->size())) {
      doCopy = kTRUE;
    } else {
      // need to check more thoroughly

      for (UInt_t i=0; i<trigtable->size(); ++i) {
        if (trigtable->at(i) != fHLTTab->at(i)) {
          doCopy = kTRUE;
          break;
        }
      }
      if (!doCopy) {
        for (UInt_t i=0; i<labels->size(); ++i) {
        if (labels->at(i) != fHLTLab->at(i)) {
            doCopy = kTRUE;
            break;
          }
        }
      }
    }
  }

  if (!doCopy)
    return;

  fHLTTab->resize(trigtable->size());
  copy(trigtable->begin(),trigtable->end(), fHLTTab->begin());
  fHLTLab->resize(labels->size());
  copy(labels->begin(),labels->end(), fHLTLab->begin());

  ++fHltEntries;
  fHltTree->Fill();
}

//--------------------------------------------------------------------------------------------------
Bool_t OutputMod::IsAcceptedBranch(const char *bname)
{
  // Return true if given branch is already in branch list. Also return true if a special
  // branch like the "EventHeader" branch is reqested. 

  // search in branch list
  for (UInt_t i=0; i<GetNBranches(); ++i) {
    if (fBrNameList.at(i).compare(bname) == 0) 
      return kTRUE;
  }

  // check if special branch that we take care of ourselves
  string name(bname);
  if (name.compare("EventHeader") == 0) {
    return kTRUE;
  }

  return kFALSE;
}

//--------------------------------------------------------------------------------------------------
Bool_t OutputMod::Notify()
{
  // On first notify, loop over list of branches to determine the list of kept branches.

  if (GetNEventsProcessed() != 0) 
    return kTRUE;

  const TTree *tree=GetSel()->GetTree();
  if (!tree) 
    return kFALSE;

  const TObjArray *arr = tree->GetTree()->GetListOfBranches();
  if (!arr)
    return kFALSE;

  for (Int_t i=0; i<arr->GetEntries(); ++i) {
    TBranch *br = dynamic_cast<TBranch*>(arr->At(i));
    if (!br && !br->GetMother())
      continue;
    br = br->GetMother();
    TClass *cls = TClass::GetClass(br->GetClassName());
    if (!cls)
      continue;

    if (!cls->InheritsFrom("TObject")) {
      Warning("Notify", "Found branch '%s' where class '%s' does not derive from TObject", 
              br->GetName(), br->GetClassName());
      continue;
    } 

    CheckAndAddBranch(br->GetName(), br->GetClassName());
  }

  if (fCheckBrDep && !CheckAndResolveBranchDep())
    return kFALSE;

  RequestBranches();
  return kTRUE;
}

//--------------------------------------------------------------------------------------------------
void OutputMod::LoadBranches()
{
  // Loop over requested branches and load them.

  for (UInt_t i=0; i<GetNBranches(); ++i) {
    LoadBranch(fBrNameList.at(i).c_str());
  }
}

//--------------------------------------------------------------------------------------------------
void OutputMod::Process()
{
  // Write out the kept branches of the current event. Make sure the meta information is 
  // correctly updated.

  if (GetSel()->GetCurEvt() == fLastSeenEvt) {
    Warning("Process", "Event with %ul already seen", fLastSeenEvt);
    return;
  }
  fLastSeenEvt = GetSel()->GetCurEvt();

  if (GetSel()->GetCurEvt() == fLastWrittenEvt) {
    Warning("Process", "Event with %ul already written", fLastWrittenEvt);
    return;
  }
  fLastWrittenEvt = GetSel()->GetCurEvt();
  ++fCounter;

  // prepare for tree filling
  if (!fTreeWriter->BeginEvent(fDoReset)) {
    SendError(kAbortAnalysis, "Process", "Begin event failed!");
    return;
  }

  if (GetNEventsProcessed() == 0 && fCheckTamBr) {
    CheckAndResolveTAMDep(fKeepTamBr);
  }

  // load all our branches
  LoadBranches();

  // pass our branches to tree writer if on first event
  if (GetNEventsProcessed() == 0) {
    SetupBranches(); 
  }

  // reset per file quantities if a new file was opened
  if (fTreeWriter->GetFileNumber()!=fFileNum) {
    fRunmap.clear();
    fRunEntries = 0;
    fHltEntries = 0;
    fFileNum = fTreeWriter->GetFileNumber();
    if (fBranchTable)
      fTreeWriter->StoreObject(fBranchTable);
  }

  UInt_t runnum = GetEventHeader()->RunNum();

  // store look ahead information
  if (fRunEntries>0) {
    fLaHeader->SetRunNum(runnum);
    fLATree->Fill();
  }

  // fill event header
  fEventHeader->SetEvtNum(GetEventHeader()->EvtNum());
  fEventHeader->SetLumiSec(GetEventHeader()->LumiSec());
  fEventHeader->SetRunNum(runnum);

  // fill all event header
  FillAllEventHeader(kFALSE);

  // look-up if entry is in map
  map<UInt_t,Int_t>::iterator riter = fRunmap.find(runnum);
  if (riter != fRunmap.end()) { // found existing run info
    Int_t runentry = riter->second;
    fEventHeader->SetRunEntry(runentry);

    IncNEventsProcessed();
    fTreeWriter->EndEvent(fDoReset);
    return;
  }

  // fill new run info
  Int_t runentry = fRunEntries;
  ++fRunEntries;
  fEventHeader->SetRunEntry(runentry);
  fRunmap.insert(pair<UInt_t,Int_t>(runnum,runentry));
  fRunInfo->SetRunNum(runnum);

  Int_t hltentry = fHltEntries;
  FillHltInfo();
  if (hltentry < fHltEntries)
    fRunInfo->SetHltEntry(hltentry);
  else
    fRunInfo->SetHltEntry(hltentry-1);
  
  fRunTree->Fill();
 
  IncNEventsProcessed();

  if (!fTreeWriter->EndEvent(fDoReset)) {
    SendError(kAbortAnalysis, "Process", "End event failed!");
    return;
  }
}

//--------------------------------------------------------------------------------------------------
void OutputMod::ProcessAll()
{
  // Called by the Selector class for events that were skipped.

  if (GetSel()->GetCurEvt() == fLastSeenEvt)
    return;

  fLastSeenEvt = GetSel()->GetCurEvt();
  ++fCounter;

  // prepare for tree filling
  FillAllEventHeader(kTRUE);
}

//--------------------------------------------------------------------------------------------------
void OutputMod::RequestBranches() 
{
  // Loop over requested branches and request them.

  for (UInt_t i=0; i<GetNBranches(); ++i) {
    if (i>=fNBranchesMax) {
      SendError(kAbortAnalysis, "RequestBranches", "Cannot request branch '%s' "
                "since maximum number of branches [%d] is reached", 
                fBrNameList.at(i).c_str(), fNBranchesMax);
      return;
    }
    fBranches[i] = 0;
    TAModule::ReqBranch(fBrNameList.at(i).c_str(), fBranches[i]);
  }
}

//--------------------------------------------------------------------------------------------------
void OutputMod::SetupBranches()
{
  // Setup branches in tree writer.

  for (UInt_t i=0; i<GetNBranches(); ++i) {
    const char *bname = fBrNameList.at(i).c_str();
    const char *cname = fBrClassList.at(i).c_str();
    if (!fBranches[i]) {
      SendError(kWarning, "SetupBranches", 
                "Pointer for branch '%s' and class '%s' is NULL", bname, cname);
      continue;
    }
    Int_t bsize = fBranchSize;
    TString cnamestr(cname);
    if ((bsize<128*1024) && (cnamestr.Contains("mithep::MCParticle"))) {
      bsize=128*1024;
    } else if ((bsize<32*1024) && (cnamestr.Contains("mithep::CaloTower"))) {
      bsize=32*1024;
    }

    fTreeWriter->AddBranch(bname, cname, &fBranches[i], bsize);
  }
}

//--------------------------------------------------------------------------------------------------
void OutputMod::SlaveBegin()
{
  // Setup the tree writer and create branches that can already be created at this point.

  // setup tree writer
  fTreeWriter = new TreeWriter(fTreeName, kFALSE);
  fTreeWriter->SetBaseURL(fPathName);
  fTreeWriter->SetPrefix(fPrefix);
  fTreeWriter->SetMaxSize(fMaxSize*1024*1024);
  fTreeWriter->SetCompressLevel(fCompLevel);
  fTreeWriter->SetDefaultSL(fSplitLevel);
  fTreeWriter->SetDefaultBrSize(fBranchSize);
  fTreeWriter->AddTree(fTreeName);
  fTreeWriter->DoBranchRef(fTreeName);

  // deal with my own tree objects
  fEventHeader = new EventHeader;
  fTreeWriter->AddBranch(GetSel()->GetEvtHdrName(), &fEventHeader);

  // deal with other trees
  const char *tname = 0;
  fRunInfo = new RunInfo;
  tname = GetSel()->GetRunTreeName();
  fTreeWriter->AddBranchToTree(tname, GetSel()->GetRunInfoName(), &fRunInfo);
  fTreeWriter->SetAutoFill(tname, 0);
  fRunTree = fTreeWriter->GetTree(tname);
  fLaHeader = new LAHeader;
  tname = GetSel()->GetLATreeName();
  fTreeWriter->AddBranchToTree(tname, GetSel()->GetLAHdrName(), &fLaHeader);
  fTreeWriter->SetAutoFill(tname, 0);
  fLATree = fTreeWriter->GetTree(tname);
  fAllEventHeader = new EventHeader;
  tname = GetSel()->GetAllEvtTreeName();
  fTreeWriter->AddBranchToTree(tname, GetSel()->GetAllEvtHdrBrn(), &fAllEventHeader);
  fAllTree = fTreeWriter->GetTree(tname);
  fTreeWriter->SetAutoFill(tname, 0);

  // get pointer to all event headers
  fSkimmedIn = GetPublicObj<EventHeaderCol>(Names::gkSkimmedHeaders);

  // create TObject space for TAM
  fBranches = new TObject*[fNBranchesMax + fAddList.size()];       

  // deal here with additional published objects
  for (UInt_t i=0; i<fAddList.size(); ++i) {
    TString objname(fAddList.at(i));
    TObject *obj = FindPublicObj(objname);
    if (obj) {
      fBranches[fNBranchesMax+i] = obj;
      fTreeWriter->AddBranch(objname, &fBranches[fNBranchesMax+i]);
      Info("SlaveBegin", "Adding additional branch named '%s' as requested", objname.Data());
    } else {
      SendError(kAbortAnalysis, "SlaveBegin", 
                "Object named '%s' for additional branch is NULL", objname.Data());
    }
  }

  // adjust checks for TAM branches
  if (fKeepTamBr)
    fCheckTamBr = kTRUE;
}

//--------------------------------------------------------------------------------------------------
void OutputMod::SlaveTerminate()
{
  // Terminate tree writing and do cleanup.

  RetractObj(Names::gkSkimmedHeaders);

  delete fTreeWriter;
  fTreeWriter = 0;

  delete fEventHeader;
  delete fRunInfo;
  delete fLaHeader;
  delete fAllEventHeader;

  delete[] fBranches; 

  Double_t frac =  100.*GetNEventsProcessed()/fCounter;
  Info("SlaveTerminate", "Stored %.2f%% events (%ld out of %ld)", 
       frac, GetNEventsProcessed(), fCounter);
}
Revision:	1.16
Committed:	Mon Oct 26 11:04:56 2009 UTC (15 years, 6 months ago) by loizides
Content type:	text/plain
Branch:	MAIN
CVS Tags:	Mit_012d, Mit_012c, Mit_012b, Mit_012a, Mit_012
Changes since 1.15:	+3 -2 lines
Log Message:	Use GetEntries