TreeMod/src/Analysis.cc

// $Id: Analysis.cc,v 1.23 2008/12/11 15:53:26 loizides Exp $

#include "MitAna/TreeMod/interface/Analysis.h"
#include <Riostream.h>
#include <TFile.h>
#include <TList.h>
#include <TDSet.h>
#include <TChain.h>
#include <TObjString.h>
#include <TSystem.h>
#include <TProof.h>
#include <TROOT.h>
#include <TBrowser.h>
#include "MitAna/DataUtil/interface/Debug.h"
#include "MitAna/DataTree/interface/Names.h"
#include "MitAna/TAM/interface/TAMVirtualLoader.h"
#include "MitAna/TAM/interface/TAModule.h"
#include "MitAna/TreeMod/interface/Selector.h"
#include "MitAna/TreeMod/interface/TreeLoader.h"
#include "MitAna/TreeMod/interface/AnaFwkMod.h"
#include "MitAna/TreeMod/interface/HLTFwkMod.h"
#include "MitAna/Catalog/interface/Catalog.h"
#include "MitAna/Catalog/interface/Dataset.h"

ClassImp(mithep::Analysis)

using namespace mithep;

//--------------------------------------------------------------------------------------------------
Analysis::Analysis(Bool_t useproof) : 
  fUseProof(useproof), 
  fUseHLT(kTRUE),
  fHierarchy(kTRUE), 
  fDoProxy(kTRUE), 
  fState(kPristine), 
  fNFriends(0), 
  fList(new TList), 
  fOutput(0), 
  fPackages(new TList), 
  fLoaders(new TList),
  fSuperMods(new TList), 
  fSelector(0), 
  fChain(0), 
  fSet(0), 
  fDeleteList(new TList),
  fTreeName(Names::gkEvtTreeName),
  fCompLevel(2), 
  fProof(0),
  fDoNEvents(TChain::kBigNumber),
  fCacheSize(134217728)
{
  // Default constructor.

  fList->SetOwner();
  fDeleteList->SetOwner();

  /* default packages for PROOF upload */
  fPackages->SetOwner();
  // nothing to be done since we do not use par files (yet?)
}

//--------------------------------------------------------------------------------------------------
Analysis::~Analysis()
{
  // Destructor.

  if (fState == kInit || fState == kRun)
    Terminate();

  delete fList;
  delete fPackages;
  delete fLoaders;
  delete fDeleteList;
  delete fSelector;
  delete fSuperMods;
  fOutput    = 0;   // owned by TAM

  delete fProof;
}

//--------------------------------------------------------------------------------------------------
Bool_t Analysis::AddDataset(const Dataset *dataset)
{
  // Add a full dataset to the analysis.

  Bool_t status = true;

  for (UInt_t i=0; i<dataset->NFiles(); ++i)
    status = (status && AddFile(dataset->FileUrl(i)));

  return status;
}

//--------------------------------------------------------------------------------------------------
Bool_t Analysis::AddFile(const char *pname)
{
  // Add file with given name to the list of files to be processed. Using the token "|", you can
  // specify an arbritray number of paths to tree files that will be concatenated as friend trees.

  if (fState != kPristine) {
    Error("AddFile", "Analysis already initialized");
    return kFALSE;
  }

  TString pnamestr(pname);
  if (pnamestr.IsNull()) 
    return kFALSE;

  TString tok("|");
  TObjArray *arr = pnamestr.Tokenize(tok);
  if (!arr)
    return kFALSE;

  TString msg;
  for (Int_t i=0; i<arr->GetEntries(); ++i) {
  
    TObjString *dummy = dynamic_cast<TObjString*>(arr->At(i));
    if (!dummy) 
      continue;

    AddFile(dummy->GetName(),i);      
    if (i==0) 
      msg=dummy->GetName();
    else
      Info("AddFile", "Add file %s as friend to %s", dummy->GetName(), msg.Data());
  }
  delete arr;

  return kTRUE;
}

//--------------------------------------------------------------------------------------------------
void Analysis::AddFile(const char *pname, Int_t eventlist)
{
  // Add file name to the event list specified by eventlist. The lists are used to hold filenames of
  // different types of events. In case you dont want friend trees, just give no eventlist argument
  // (default 0).

  MitAssert("AddFile", pname != 0);

  TList *l = 0;
  if (eventlist >= 0 && eventlist < fNFriends) {
      
    l = dynamic_cast<TList*>(fList->At(eventlist));
    if (!l) {
      Fatal("AddFile", "Requested list %d not found!", eventlist);
      return;
    }

  } else if (eventlist == fNFriends) {
      
    l = new TList;
    l->SetOwner();
    fList->Add(l);
    ++fNFriends;

  } else if (eventlist < 0 || eventlist > fNFriends) {
    Error("AddFile", "Specified list %d not in [0,%d]", eventlist, fNFriends);
    return;
  }
   
  if (!IsValidName(pname)) return;

  l->Add(new TObjString(pname));

  MDB(kAnalysis, 2)
    Info("AddFile", "Added %s to list of files.", pname);
}

//--------------------------------------------------------------------------------------------------
void Analysis::AddFile(const TObject *oname, Int_t eventlist)
{
  // Add file name to the event list specified by eventlist. The lists are used to hold filenames of
  // different types of events. In case you dont want mixing, just give no eventlist argument
  // (default 0).

  MitAssert("AddFile", oname != 0);

  return AddFile(oname->GetName(), eventlist);
}

//________________________________________________________________________
Bool_t Analysis::AddFiles(const char *pname, Int_t nmax)
{
  // Add files from text file with given name. If nmax>0, maximum nmax files will be added.

  MitAssert("AddFiles", pname != 0);

  ifstream in;
  in.open(pname);
  if (!in) {
    Error("AddFiles", "Can not open file with name %s", pname);
    return kFALSE;
  }

  Int_t fc = 0;
  while (in) {
    TString line;
    line.ReadLine(in);
    cout << line << endl;
    if (!line.EndsWith(".root")) 
      continue;
    cout << line << endl;

    if (!AddFile(line)) {
      Error("AddFiles", "Error adding file with name %s", line.Data());
      return kFALSE;
    }

    ++fc;
    if (nmax>0 && fc>=nmax) {
      Info("AddFiles", "Maximal number (%d) of files added", nmax);
      break;
    }
  } 

  return kTRUE;
}

//--------------------------------------------------------------------------------------------------
void Analysis::AddList(TList *list, Int_t eventlist)
{
  // Add file name to the event list specified by eventlist. The lists are used to hold filenames of
  // different types of events. In case you dont want mixing, just give no eventlist argument
  // (default 0).

  MitAssert("AddList", list != 0);

  TIter next(list);                           
  while (TObject *obj = next())                                
    AddFile(obj->GetName(), eventlist);
}

//--------------------------------------------------------------------------------------------------
void Analysis::AddLoader(TAMVirtualLoader *l)      
{ 
  // Add loader to the list of loaders.

  fLoaders->Add(l); 
}

//--------------------------------------------------------------------------------------------------
void Analysis::AddPackage(const char* name)
{
  // Add package to the list of uploaded packages.

  MitAssert("AddPackage", name != 0);
  fPackages->Add(new TObjString(name));
}

//--------------------------------------------------------------------------------------------------
void Analysis::AddPackages(TList *list)
{
  // Add list of packages to the list of uploaded packages.

  MitAssert("AddPackage", list != 0);

  TIter next(list);
  while (TObject *obj = next()) {
    fPackages->Add(new TObjString(obj->GetName()));
  }
}

//--------------------------------------------------------------------------------------------------
void Analysis::AddSuperModule(TAModule *mod)
{ 
  // Add a top-level module to list of top-level (super) modules.

  fSuperMods->Add(mod);       
}

//--------------------------------------------------------------------------------------------------
void Analysis::FileInputFromEnv()
{
  // Attempt to get list of filesets/files from environment.

  TString catalog(gSystem->Getenv("MIT_CATALOG"));
  TString book(gSystem->Getenv("MIT_BOOK"));
  TString dataset(gSystem->Getenv("MIT_DATASET"));
  TString filesets(gSystem->Getenv("MIT_FILESETS"));
  TString files(gSystem->Getenv("MIT_FILES"));

  if ((catalog.IsNull() || book.IsNull() || dataset.IsNull()) && files.IsNull()) {
      Warning("FileInputFromEnv", "Called to get file info from environment, but did not get"
              " consistent set of variables:\n\tMIT_CATALOG=%s\n\tMIT_BOOK=%s\n\t"
              "MIT_DATASET=%s\n\tMIT_FILESETS=%s\n\tMIT_FILES=%s\n", 
              catalog.Data(), book.Data(), dataset.Data(), filesets.Data(), files.Data());
      return;
  }


  if (!files.IsNull()) { // add local files
    Info("FileInputFromEnv", "Got from environment:\n"
         "\n\tMIT_FILES=%s\n", files.Data());
    TString tok(";");
    TObjArray *arr = files.Tokenize(tok);
    if (arr) {
      for (Int_t i=0; i<arr->GetEntries(); ++i) {
        TObjString *dummy = dynamic_cast<TObjString*>(arr->At(i));
        if (!dummy) continue;
        AddFile(dummy->GetName(),0);      
      }
      delete arr;
    }
    return;
  }

  Info("FileInputFromEnv", "Got from environment:\n"
       "\tMIT_CATALOG=%s\n\tMIT_BOOK=%s\n\tMIT_DATASET=%s\n\tMIT_FILESETS=%s\n", 
       catalog.Data(), book.Data(), dataset.Data(), filesets.Data());

  Catalog cat(catalog);
  TString tok(";");
  TObjArray *arr = filesets.Tokenize(tok);
  if (arr) {
    for (Int_t i=0; i<arr->GetEntries(); ++i) {
      TObjString *fileset = dynamic_cast<TObjString*>(arr->At(i));
      if (!fileset) continue;
      Dataset *d = cat.FindDataset(book, dataset, fileset->String());
      if (!d)
        continue;
      AddDataset(d);
      delete d;
    }
    delete arr;
  }
}

//--------------------------------------------------------------------------------------------------
Bool_t Analysis::Init()
{
  // Setup the TDSet and TChain to be used for the analysis with or without PROOF. If more than one
  // list of file names was given, friend trees are supported.

  if (fState == kRun || fState == kInit) {
    Error("Init", "Init in state %d is not possible! Call Terminate() first.",
          Int_t(fState));
    return kFALSE;
  }

  // check if we should attempt to get filesets/filenames from environment
  if (fNFriends == 0)
    FileInputFromEnv();

  if (fNFriends <= 0) {
    Error("Init", "List of friend lists is empty!");
    return kFALSE;
  }

  if (!fSuperMods->First()) {
    Error("Init", "Top-level TAM module is NULL!");
    return kFALSE;
  }

  if (fUseProof) { // first init our PROOF session
    if (!InitProof()) 
      return kFALSE;
  }

  // we do this here instead in Terminate() so that 
  // we can browse the output even after Terminate()
  delete fSelector;
  fSelector = 0;

  fChain = new TChain(fTreeName); 
  fSet   = new TDSet("TTree",fTreeName);
  
  fChain->SetCacheSize(fCacheSize);

  for (Int_t i=0; i<fNFriends; ++i) {

    TList *l = dynamic_cast<TList*>(fList->At(i));
    if (!l) {
      Fatal("Init", "List %d not found!", i);
      return kFALSE;
    }

    if (i == 0) {
      TIter next(l);                           
      while (TObjString *obj = dynamic_cast<TObjString*>(next())) {
        fChain->Add(obj->GetName());
        fSet->Add(obj->GetName());
      }

    } else {

      TChain *chain = new TChain(fTreeName); 
      TDSet *set    = new TDSet("TTree",fTreeName);

      TIter next(l);                           
      while (TObjString *obj = dynamic_cast<TObjString*>(next())) {
        chain->Add(obj->GetName());
        set->Add(obj->GetName());
      }

      TString alias("TAMTREE_"); // aliases currently not used
      alias+=i;

      fChain->AddFriend(chain,alias.Data());
      fSet->AddFriend(set,alias.Data());

      fDeleteList->Add(chain);
      fDeleteList->Add(set);
    }

  }

  // create our customized loader plugin for TAM
  TreeLoader *bl = new TreeLoader;
  fLoaders->Add(bl);
  fDeleteList->Add(bl);

  // create our ana framework module
  AnaFwkMod *anamod = new AnaFwkMod;
  fDeleteList->Add(anamod);

  // create our HLT framework module
  HLTFwkMod *hltmod = 0;
  if (fUseHLT) {
    hltmod = new HLTFwkMod;
    fDeleteList->Add(hltmod);
  }

  if (fUseProof) {

    fProof->AddInput(anamod);
    if (hltmod) 
      fProof->AddInput(hltmod);

    TIter iter(fSuperMods->MakeIterator());
    while (1) {
      TAModule *next = dynamic_cast<TAModule*>(iter.Next());
      if (!next) break;
      fProof->AddInput(next);
    }

    fLoaders->SetName("TAM_LOADERS");
    fProof->AddInput(fLoaders);      

  } else {

    // when not running Proof, we must make a selector
    fSelector = new Selector; 
    fSelector->SetDoProxy(fDoProxy);

    fSelector->AddInput(anamod);

    if (hltmod) 
      fSelector->AddInput(hltmod);

    TIter iter(fSuperMods->MakeIterator());
    while (1) {
      TAModule *next = dynamic_cast<TAModule*>(iter.Next());
      if (!next) break;
      fSelector->AddInput(next);
    }

    MDB(kAnalysis, 2)
      fSelector->SetVerbosity(1);

    // pass loaders to selector
    TIter next(fLoaders);                           
    while (TAMVirtualLoader *l = dynamic_cast<TAMVirtualLoader*>(next()))
      fSelector->AddLoader(l);
  }

  fState = kInit;
  return kTRUE;
}

//--------------------------------------------------------------------------------------------------
Bool_t Analysis::InitProof()
{
  // Initialize PROOF connection.

  if (fProof && fProof->IsValid()) 
    return kTRUE;

  delete fProof;

  if (fMaster.Contains("rcf.bnl.gov")) {
    for (Int_t i=0; i<5; ++i) {
      Warning("InitProof", "*** DID YOU RUN PROOF_KINIT? %d (5) ***", i);
      gSystem->Sleep(1000);
    }
  }

  MDB(kAnalysis, 1)
    Info("InitProof", "Starting PROOF on master %s with config %s",
         fMaster.Data(), fConfig.Data());

  fProof = dynamic_cast<TProof*>(TProof::Open(fMaster, fConfig));
  if (!fProof) {
    Error("InitProof", "Could not start PROOF!");
    return kFALSE;
  }

  MDB(kAnalysis, 3)
    gROOT->Print();

  //fProof->AddInput(new TNamed("PROOF_NewPacketizer",""));

  Bool_t ret=kTRUE;
  if (fPackages) {
    // tell Proof what additional libraries we will need on each worker computer
    ret = UploadPackages(fPackages);
  }

  return ret;
}

//--------------------------------------------------------------------------------------------------
void Analysis::Run()
{
  // Run the analysis on the created file set.

  if (fState == kPristine || fState == kRun) {
    Error("Run", "Run in state %d is not possible! Call Init() first.",
          Int_t(fState));
  }

  if (fUseProof) {

    MDB(kAnalysis, 1)
      Info("Run", "Start processing with PROOF...");

    fSet->Process("Selector","",fDoNEvents);

  } else {

    MDB(kAnalysis, 1)
      Info("Run", "Start processing (no PROOF)...");

    fChain->Process(fSelector,"",fDoNEvents);
  }

  MDB(kAnalysis, 1)
    Info("Run", "Processing complete!");

  fState = kRun;
}

//--------------------------------------------------------------------------------------------------
Bool_t Analysis::Run(Bool_t browse)
{
  // Execute analysis and open TBrowser if requested.

  if (Init()) {
    Run();
    Terminate();
    if (browse) {
      new TBrowser;
    }
    return kTRUE;
  }

  Error("Execute", "Could not initialize analysis.");
  return kFALSE;
}

//--------------------------------------------------------------------------------------------------
void Analysis::SetSuperModule(TAModule *mod)
{ 
  // Set the first top-level module in the list of top-level (super) modules.

  fSuperMods->AddFirst(mod);       
}

//--------------------------------------------------------------------------------------------------
void Analysis::Terminate()
{
  // Terminate current analysis run.

  if (fState == kPristine || fState == kTerminate) {
    Error("Terminate", "Terminate in state %d is not possible! Call Init() first.",
          Int_t(fState));
    return;
  }

  if (fState == kRun) {

    if (fUseProof) {
      // the output list from Proof can (in principal) contain other objects
      // besides the module output hierarchy.
      TList* outputlist = fProof->GetOutputList();
      TIter nextOut(outputlist);
      while (TObject *obj = nextOut()) {
        if (obj->InheritsFrom(TAMOutput::Class())) {
          fOutput = dynamic_cast<TList*>(obj);
          break;
        }
      }

    } else {
      fOutput = fSelector->GetModOutput();
    }

    
    if (fOutput && !fAnaOutput.IsNull()) {
      TDirectory::TContext context(0); // automatically restore gDirectory

      std::auto_ptr<TFile> outf(TFile::Open(fAnaOutput,"recreate","", fCompLevel));
      if (outf.get() == 0) {
        Error("Terminate", "Could not open file %s for output!", fAnaOutput.Data());
      } else {
        MDB(kAnalysis, 1)
          Info("Terminate", "Saving output to %s!", fAnaOutput.Data());

        if (fHierarchy) 
          fOutput->Write(0,-99);
        else 
          fOutput->Write();
      }
    }
    // set state to terminate
    fState = kTerminate;
  }

  delete fChain;
  delete fSet;
  fDeleteList->Delete();
}

//--------------------------------------------------------------------------------------------------
Bool_t Analysis::UploadPackages(TList *packages)
{
  // Upload list of par files to the server.

  MitAssert("UploadPackages", packages != 0);

  for (Int_t i=0; i<packages->GetEntries(); ++i) {

    TObject* objstr = packages->At(i); 
    if (!objstr) {
      Error("InitProof", "Problem at package number %d!", i);
      return kFALSE;
    }

    TString packname = objstr->GetName();
    Int_t   en       = 0;
    if (packname.EndsWith("+")) { 
      en=1;
      packname.Resize(packname.Length()-1);
    }

    ifstream ftest(gSystem->ExpandPathName(packname.Data()),ios_base::binary);
    if (!ftest.good()) {
      Error("InitProof", "Could not open %s for upload!", packname.Data());
      return kFALSE;
    }

    if (fProof->UploadPackage(packname)<0) {
      Error("UploadPackage", "Upload for %s failed!", packname.Data());
      return kFALSE;
    }

    if (en == 1) {
      Int_t pos=packname.Last('/')+1;
      if (pos)
        packname.Remove(0,pos);
      if (fProof->EnablePackage(packname)<0) {
        Error("UploadPackage", "Enabling for %s failed!", packname.Data());
        return kFALSE;
      }
    }
  }

  return kTRUE;
}
Revision:	1.24
Committed:	Fri Dec 12 16:57:42 2008 UTC (16 years, 4 months ago) by bendavid
Content type:	text/plain
Branch:	MAIN
Changes since 1.23:	+5 -2 lines
Log Message:	Added read caching for the events tree, enabled by default set to 128mb