| 1 |
// $Id: TreeWriter.h,v 1.2 2008/05/27 19:59:54 loizides Exp $
|
| 2 |
|
| 3 |
#ifndef DATATREE_TREEWRITER_H
|
| 4 |
#define DATATREE_TREEWRITER_H
|
| 5 |
|
| 6 |
#include <TNamed.h>
|
| 7 |
#include <TString.h>
|
| 8 |
#include <TFile.h>
|
| 9 |
#include <TTree.h>
|
| 10 |
#include <TObjArray.h>
|
| 11 |
|
| 12 |
//--------------------------------------------------------------------------------------------------
|
| 13 |
//
|
| 14 |
// TreeWriter
|
| 15 |
//
|
| 16 |
// Class implementing a tree writing infra structure. The class creates and maintaines
|
| 17 |
// a standard tree with name "tname" as given in the constructor. The tree is stored in
|
| 18 |
// a file or in multiple files if needed, where the file path name and maximum size can be
|
| 19 |
// specified. Using TreeWriter::AddBranch allows to add various branches to the tree.
|
| 20 |
// The user has to make sure that (s)he calls TreeWriter::BeginEvent and
|
| 21 |
// TreeWriter::EndEvent for every event before and after filling of the branch
|
| 22 |
// structures. Note that in addition to the standard tree one can create new
|
| 23 |
// tree(s) in the same file using the TreeWriter::AddBranchToTree member functions.
|
| 24 |
//
|
| 25 |
// Authors: C.Loizides
|
| 26 |
//
|
| 27 |
//--------------------------------------------------------------------------------------------------
|
| 28 |
|
| 29 |
namespace mithep
|
| 30 |
{
|
| 31 |
class MyTree : public TTree
|
| 32 |
{
|
| 33 |
public:
|
| 34 |
MyTree(const char* name, const char* title, Int_t splitlevel = 99) :
|
| 35 |
TTree(name,title, splitlevel), fAutoFill(1) {}
|
| 36 |
Bool_t GetAutoFill() const { return fAutoFill; }
|
| 37 |
void SetAutoFill(Bool_t b) { fAutoFill = b; }
|
| 38 |
protected:
|
| 39 |
Bool_t fAutoFill; //!=true then fill automatically in TreeWriter (def=1)
|
| 40 |
};
|
| 41 |
|
| 42 |
class TreeWriter : public TNamed
|
| 43 |
{
|
| 44 |
public:
|
| 45 |
TreeWriter(const char *tname="MitTree", Bool_t doreset = kFALSE);
|
| 46 |
~TreeWriter();
|
| 47 |
|
| 48 |
void AddBranch(const char *name, const char *cname,
|
| 49 |
void *obj, Int_t bsize, Int_t level);
|
| 50 |
void AddBranch(const char *name, const char *cname,
|
| 51 |
void *obj, Int_t bsize);
|
| 52 |
void AddBranch(const char *name, const char *cname,
|
| 53 |
void *obj);
|
| 54 |
void AddBranchToTree(const char *tname, const char *name, const char *cname,
|
| 55 |
void *obj, Int_t bsize, Int_t level);
|
| 56 |
void AddBranchToTree(const char *tname, const char *name, const char *cname,
|
| 57 |
void *obj, Int_t bsize);
|
| 58 |
void AddBranchToTree(const char *tname, const char *name, const char *cname,
|
| 59 |
void *obj);
|
| 60 |
Bool_t BeginEvent(Bool_t doreset=kFALSE);
|
| 61 |
Bool_t EndEvent(Bool_t doreset=kFALSE);
|
| 62 |
const char *GetBaseURL() const { return fBaseURL.IsNull() ? "." : fBaseURL; }
|
| 63 |
Int_t GetCompressLevel() const { return fCompressLevel; }
|
| 64 |
Long64_t GetEntries(const char *tn=0) const;
|
| 65 |
Long64_t GetFileSize() const { return fFile != 0 ? fFile->GetEND() : 0; }
|
| 66 |
const TFile *GetFile() const { return fFile; }
|
| 67 |
const char *GetFileName() const { return Form("%s_%03d.root",
|
| 68 |
GetPrefix(), GetFileNumber()); }
|
| 69 |
UShort_t GetFileNumber() const { return fFileNumber; }
|
| 70 |
const char *GetFullName() const { return Form("%s/%s",
|
| 71 |
GetBaseURL(), GetFileName()); }
|
| 72 |
const char *GetPrefix() const { return fPrefix; }
|
| 73 |
const TTree *GetTree(const char *tn) const;
|
| 74 |
TTree *GetTree(const char *tn);
|
| 75 |
void Print(Option_t *option="") const;
|
| 76 |
void SetAutoFill(const char *tn, Bool_t b);
|
| 77 |
void SetBaseURL(const char *b) { fBaseURL = b; }
|
| 78 |
void SetCompressLevel(Int_t l) { fCompressLevel = l; }
|
| 79 |
void SetDefaultBrSize(Int_t s) { fDefBrSize=s; }
|
| 80 |
void SetDefaultSL(Int_t s) { fDefSL=s;}
|
| 81 |
void SetMaxSize(Long64_t s) { fMaxSize=s; }
|
| 82 |
void SetPrefix(const char *p) { fPrefix = p; }
|
| 83 |
void StoreObject(const TObject *obj);
|
| 84 |
|
| 85 |
protected:
|
| 86 |
TString fBaseURL; //base url for tree storage
|
| 87 |
TString fPrefix; //prefix of file name
|
| 88 |
UShort_t fFileNumber; //current sequence number
|
| 89 |
Int_t fCompressLevel; //compression level used for TFile
|
| 90 |
Int_t fDefBrSize; //default buffer size for branches
|
| 91 |
Int_t fDefSL; //default split level for branches
|
| 92 |
Long64_t fMaxSize; //maximum file size for a file [Bytes]
|
| 93 |
const Long64_t fkMinFreeSpace; //minimum free space required for closing file
|
| 94 |
const Long64_t fkMinAvgSize; //minimum average entry size
|
| 95 |
Long64_t fEvtObjNum; //event object number offset (for TRef)
|
| 96 |
Bool_t fIsInit; //true if OpenFile() was called
|
| 97 |
Bool_t fDoObjNumReset; //true if obj. number resets automatically (def=0)
|
| 98 |
TFile *fFile; //file being written
|
| 99 |
TObjArray fTrees; //array of tree(s) being filled
|
| 100 |
|
| 101 |
mithep::MyTree *AddOrGetMyTree(const char *tn);
|
| 102 |
mithep::MyTree *GetMyTree(const char *tn);
|
| 103 |
Bool_t IsInit() const { return fIsInit; }
|
| 104 |
Bool_t IsFull() const;
|
| 105 |
void OpenFile();
|
| 106 |
void CloseFile();
|
| 107 |
|
| 108 |
ClassDef(TreeWriter,0) // Tree writer class
|
| 109 |
};
|
| 110 |
|
| 111 |
} /*namespace mithep*/
|
| 112 |
|
| 113 |
#endif /*DATATREE_TREEWRITER_H*/
|
