DataUtil/interface/TreeWriter.h

//--------------------------------------------------------------------------------------------------
// $Id: TreeWriter.h,v 1.13 2008/12/10 11:30:32 loizides Exp $
//
// TreeWriter
//
// Class implementing a tree writing infrastructure. The class creates and maintaines
// a standard tree with name "tname" as given in the constructor. The tree is stored in 
// a file or in multiple files if needed, where the file path name and maximum size can be
// specified. Using TreeWriter::AddBranch allows to add various branches to the tree.
// The user has to make sure that (s)he calls TreeWriter::BeginEvent and 
// TreeWriter::EndEvent for every event before and after filling of the branch 
// structures. Note that in addition to the standard tree one can create new
// tree(s) in the same file using the TreeWriter::AddBranchToTree member functions.
//
// Authors: C.Loizides
//--------------------------------------------------------------------------------------------------

#ifndef MITANA_DATAUTIL_TREEWRITER_H
#define MITANA_DATAUTIL_TREEWRITER_H

#include <string>
#include <TNamed.h>
#include <TString.h>
#include <TFile.h>
#include <TTree.h>
#include <TObjArray.h>

namespace mithep 
{
  using std::string;

  class MyTree : public TTree 
  {
    public:
      MyTree(const char* name, const char* title, Int_t splitlevel = 99) :
        TTree(name,title, splitlevel), fAutoFill(1) {}
        Bool_t GetAutoFill() const   { return fAutoFill; }
        void   SetAutoFill(Bool_t b) { fAutoFill = b; }

    protected:
      Bool_t fAutoFill; //!=true then fill automatically in TreeWriter (def=1)
  };
  
  class TreeWriter : public TNamed 
  {
    public:
      TreeWriter(const char *tname="MitTree", Bool_t doreset = kFALSE);
      ~TreeWriter();

      void                 AddBranch(const char *name, const char *cname, 
                                     void *obj,  Int_t bsize, Int_t level);
      void                 AddBranch(const string &name, const string &cname, 
                                     void *obj,  Int_t bsize, Int_t level)
                             { AddBranch(name.c_str(),cname.c_str(),obj,bsize,level); }
      void                 AddBranch(const char *name, void *obj, Int_t bsize, Int_t level);
      void                 AddBranch(const string &name, void *obj, Int_t bsize, Int_t level)
                             { AddBranch(name.c_str(),obj,bsize,level); }
      void                 AddBranch(const char *name, const char *cname, 
                                     void *obj, Int_t bsize);
      void                 AddBranch(const string &name, const string &cname, 
                                     void *obj, Int_t bsize)
                             { AddBranch(name.c_str(),cname.c_str(),obj,bsize); }
      void                 AddBranch(const char *name, void *obj, Int_t bsize);
      void                 AddBranch(const string &name, void *obj, Int_t bsize)
                             { AddBranch(name.c_str(),obj, bsize); }
      void                 AddBranch(const char *name, const char *cname, void *obj);
      void                 AddBranch(const string &name, const string &cname, void *obj)
                             { AddBranch(name.c_str(),cname.c_str(),obj); }
      void                 AddBranch(const char *name, void *obj);
      void                 AddBranch(const string &name, void *obj) 
                             { AddBranch(name.c_str(),obj); }
      void                 AddBranchToTree(const char *tname, const char *name, const char *cname, 
                                           void *obj,  Int_t bsize, Int_t level);
      void                 AddBranchToTree(const string &tn, const string &n, const string &cn, 
                                           void *obj,  Int_t bsize, Int_t level)
                             { AddBranchToTree(tn.c_str(),n.c_str(),cn.c_str(),obj,bsize,level); }
      void                 AddBranchToTree(const char *tname, const char *name, void *obj,  
                                           Int_t bsize, Int_t level);
      void                 AddBranchToTree(const string &tn, const string &n, void *obj,  
                                           Int_t bsize, Int_t level)
                             { AddBranchToTree(tn.c_str(),n.c_str(),obj,bsize,level); }
      void                 AddBranchToTree(const char *tname, const char *name, const char *cname, 
                                           void *obj, Int_t bsize);
      void                 AddBranchToTree(const string &tn, const string &n, const string &cn, 
                                           void *obj,  Int_t bsize)
                             { AddBranchToTree(tn.c_str(),n.c_str(),cn.c_str(),obj,bsize); }
      void                 AddBranchToTree(const char *tname, const char *name, void *obj, 
                                           Int_t bsize);
      void                 AddBranchToTree(const string &tn, const string &n, void *obj,
                                           Int_t bsize)
                             { AddBranchToTree(tn.c_str(),n.c_str(),obj,bsize); }
      void                 AddBranchToTree(const char *tname, const char *name, const char *cname, 
                                           void *obj);
      void                 AddBranchToTree(const string &tn, const string &n, const string &cn, 
                                           void *obj)
                             { AddBranchToTree(tn.c_str(),n.c_str(),cn.c_str(),obj); }
      void                 AddBranchToTree(const char *tname, const char *name, void *obj);
      void                 AddBranchToTree(const string &tn, const string &n, void *obj)
                             { AddBranchToTree(tn.c_str(),n.c_str(),obj); }
      void                 AddTree(const char *tname);
      void                 AddTree(const string &tname)       { AddTree(tname.c_str()); }
      Bool_t               BeginEvent(Bool_t doreset=kFALSE);
      void                 DoBranchRef(const char *tn);
      Bool_t               EndEvent(Bool_t doreset=kFALSE);
      const char          *GetBaseURL()                 const
                             { return fBaseURL.IsNull()?".":fBaseURL; }  
      Int_t                GetCompressLevel()           const { return fCompressLevel;  }
      Bool_t               GetDoObjNumReset()           const { return fDoObjNumReset;  }
      Bool_t               GetDoBranchRef()             const { return fDoBranchRef;    }
      Long64_t             GetEntries(const char *tn=0) const;
      Long64_t             GetFileSize()                const 
                             { return fFile!=0?fFile->GetEND():0; }
      const TFile         *GetFile()                    const { return fFile;           }
      const char          *GetFileName()                const {
                             return Form("%s_%03d.root",GetPrefix(),GetFileNumber());   }
      UShort_t             GetFileNumber()              const { return fFileNumber;     }
      const char          *GetFullName()                const {
                             return Form("%s/%s",GetBaseURL(),GetFileName());           }
      const char          *GetPrefix()                  const { return fPrefix;         }  
      const TTree         *GetTree(const char *tn=0)    const;
      TTree               *GetTree(const char *tn=0);
      const TTree         *GetTree(const string &tn)    const { return GetTree(tn.c_str()); }
      TTree               *GetTree(const string &tn)          { return GetTree(tn.c_str()); }
      void                 Print(Option_t *option="")   const;
      void                 SetAutoFill(const char *tn, Bool_t b);
      void                 SetAutoFill(const string &tn, Bool_t b)
                             { SetAutoFill(tn.c_str(), b); }
      void                 SetBaseURL(const char *b)          { fBaseURL = b;         }
      void                 SetBaseURL(const string &b)        { fBaseURL = b.c_str(); }
      void                 SetCompressLevel(Int_t l)          { fCompressLevel = l;   }
      void                 SetDefaultBrSize(Int_t s)          { fDefBrSize=s;         }
      void                 SetDefaultSL(Int_t s)              { fDefSL=s;             }
      void                 SetDoObjNumReset(Bool_t b)         { fDoObjNumReset = b;   }
      void                 SetDoBranchRef(Bool_t b)           { fDoBranchRef = b;     }
      void                 SetMaxSize(Long64_t s);
      void                 SetPrefix(const char *p)           { fPrefix = p;          }
      void                 SetPrefix(const string &p)         { fPrefix = p.c_str();  }
      void                 StoreObject(const TObject *obj);
      void                 Terminate();

    protected:
      TString              fBaseURL;            //base url for tree storage
      TString              fPrefix;             //prefix of file name 
      UShort_t             fFileNumber;         //current sequence number
      Int_t                fCompressLevel;      //compression level used for TFile
      Int_t                fDefBrSize;          //default buffer size for branches
      Int_t                fDefSL;              //default split level for branches
      Long64_t             fMaxSize;            //maximum file size for a file [Bytes]
      const Long64_t       fkMinFreeSpace;      //minimum free space required for closing file
      const Long64_t       fkMinAvgSize;        //minimum average entry size 
      Long64_t             fEvtObjNum;          //event object number offset (for TRef)
      Bool_t               fIsInit;             //true if OpenFile() was called
      Bool_t               fDoObjNumReset;      //true if obj. number resets automatically (def=0)
      Bool_t               fDoBranchRef;        //true if BranchRef is called automatically (def=0)
      TFile               *fFile;               //file being written
      TObjArray            fTrees;              //array of tree(s) being filled

      mithep::MyTree      *AddOrGetMyTree(const char *tn);
      mithep::MyTree      *GetMyTree(const char *tn);
      Bool_t               IsInit()                     const { return fIsInit; }
      Bool_t               IsFull()                     const;
      void                 OpenFile();
      void                 CloseFile();

    private:
      const char          *CName(void *obj)             const; 

    ClassDef(TreeWriter, 0) // Tree writer class
  };
}
#endif
Revision:	1.14
Committed:	Sun Mar 15 11:17:04 2009 UTC (16 years, 1 month ago) by loizides
Content type:	text/plain
Branch:	MAIN
CVS Tags:	Mit_008pre2
Changes since 1.13:	+61 -21 lines
Log Message:	Added std::string setters
#	User	Rev	Content
1	loizides	1.1	//--------------------------------------------------------------------------------------------------
2	loizides	1.14	// $Id: TreeWriter.h,v 1.13 2008/12/10 11:30:32 loizides Exp $
3	loizides	1.1	//
4			// TreeWriter
5			//
6	paus	1.5	// Class implementing a tree writing infrastructure. The class creates and maintaines
7	loizides	1.3	// a standard tree with name "tname" as given in the constructor. The tree is stored in
8			// a file or in multiple files if needed, where the file path name and maximum size can be
9	loizides	1.1	// specified. Using TreeWriter::AddBranch allows to add various branches to the tree.
10			// The user has to make sure that (s)he calls TreeWriter::BeginEvent and
11			// TreeWriter::EndEvent for every event before and after filling of the branch
12	loizides	1.3	// structures. Note that in addition to the standard tree one can create new
13			// tree(s) in the same file using the TreeWriter::AddBranchToTree member functions.
14	loizides	1.1	//
15			// Authors: C.Loizides
16			//--------------------------------------------------------------------------------------------------
17
18	loizides	1.10	#ifndef MITANA_DATAUTIL_TREEWRITER_H
19			#define MITANA_DATAUTIL_TREEWRITER_H
20	loizides	1.8
21	loizides	1.14	#include <string>
22	loizides	1.8	#include <TNamed.h>
23			#include <TString.h>
24			#include <TFile.h>
25			#include <TTree.h>
26			#include <TObjArray.h>
27
28	loizides	1.2	namespace mithep
29			{
30	loizides	1.14	using std::string;
31
32	loizides	1.3	class MyTree : public TTree
33			{
34			public:
35			MyTree(const char* name, const char* title, Int_t splitlevel = 99) :
36	loizides	1.12	TTree(name,title, splitlevel), fAutoFill(1) {}
37	paus	1.5	Bool_t GetAutoFill() const { return fAutoFill; }
38			void SetAutoFill(Bool_t b) { fAutoFill = b; }
39	loizides	1.11
40	loizides	1.3	protected:
41			Bool_t fAutoFill; //!=true then fill automatically in TreeWriter (def=1)
42			};
43	paus	1.5
44	loizides	1.1	class TreeWriter : public TNamed
45			{
46			public:
47			TreeWriter(const char *tname="MitTree", Bool_t doreset = kFALSE);
48			~TreeWriter();
49
50	loizides	1.3	void AddBranch(const char name, const char cname,
51			void *obj, Int_t bsize, Int_t level);
52	loizides	1.14	void AddBranch(const string &name, const string &cname,
53			void *obj, Int_t bsize, Int_t level)
54			{ AddBranch(name.c_str(),cname.c_str(),obj,bsize,level); }
55	loizides	1.4	void AddBranch(const char name, void obj, Int_t bsize, Int_t level);
56	loizides	1.14	void AddBranch(const string &name, void *obj, Int_t bsize, Int_t level)
57			{ AddBranch(name.c_str(),obj,bsize,level); }
58	loizides	1.3	void AddBranch(const char name, const char cname,
59			void *obj, Int_t bsize);
60	loizides	1.14	void AddBranch(const string &name, const string &cname,
61			void *obj, Int_t bsize)
62			{ AddBranch(name.c_str(),cname.c_str(),obj,bsize); }
63	loizides	1.4	void AddBranch(const char name, void obj, Int_t bsize);
64	loizides	1.14	void AddBranch(const string &name, void *obj, Int_t bsize)
65			{ AddBranch(name.c_str(),obj, bsize); }
66			void AddBranch(const char name, const char cname, void *obj);
67			void AddBranch(const string &name, const string &cname, void *obj)
68			{ AddBranch(name.c_str(),cname.c_str(),obj); }
69	loizides	1.4	void AddBranch(const char name, void obj);
70	loizides	1.14	void AddBranch(const string &name, void *obj)
71			{ AddBranch(name.c_str(),obj); }
72	loizides	1.3	void AddBranchToTree(const char tname, const char name, const char *cname,
73			void *obj, Int_t bsize, Int_t level);
74	loizides	1.14	void AddBranchToTree(const string &tn, const string &n, const string &cn,
75			void *obj, Int_t bsize, Int_t level)
76			{ AddBranchToTree(tn.c_str(),n.c_str(),cn.c_str(),obj,bsize,level); }
77	loizides	1.4	void AddBranchToTree(const char tname, const char name, void *obj,
78			Int_t bsize, Int_t level);
79	loizides	1.14	void AddBranchToTree(const string &tn, const string &n, void *obj,
80			Int_t bsize, Int_t level)
81			{ AddBranchToTree(tn.c_str(),n.c_str(),obj,bsize,level); }
82	loizides	1.3	void AddBranchToTree(const char tname, const char name, const char *cname,
83			void *obj, Int_t bsize);
84	loizides	1.14	void AddBranchToTree(const string &tn, const string &n, const string &cn,
85			void *obj, Int_t bsize)
86			{ AddBranchToTree(tn.c_str(),n.c_str(),cn.c_str(),obj,bsize); }
87	loizides	1.4	void AddBranchToTree(const char tname, const char name, void *obj,
88			Int_t bsize);
89	loizides	1.14	void AddBranchToTree(const string &tn, const string &n, void *obj,
90			Int_t bsize)
91			{ AddBranchToTree(tn.c_str(),n.c_str(),obj,bsize); }
92	loizides	1.3	void AddBranchToTree(const char tname, const char name, const char *cname,
93			void *obj);
94	loizides	1.14	void AddBranchToTree(const string &tn, const string &n, const string &cn,
95			void *obj)
96			{ AddBranchToTree(tn.c_str(),n.c_str(),cn.c_str(),obj); }
97	loizides	1.4	void AddBranchToTree(const char tname, const char name, void *obj);
98	loizides	1.14	void AddBranchToTree(const string &tn, const string &n, void *obj)
99			{ AddBranchToTree(tn.c_str(),n.c_str(),obj); }
100	loizides	1.12	void AddTree(const char *tname);
101	loizides	1.14	void AddTree(const string &tname) { AddTree(tname.c_str()); }
102	loizides	1.1	Bool_t BeginEvent(Bool_t doreset=kFALSE);
103	loizides	1.12	void DoBranchRef(const char *tn);
104	loizides	1.1	Bool_t EndEvent(Bool_t doreset=kFALSE);
105	loizides	1.11	const char *GetBaseURL() const
106	loizides	1.14	{ return fBaseURL.IsNull()?".":fBaseURL; }
107			Int_t GetCompressLevel() const { return fCompressLevel; }
108			Bool_t GetDoObjNumReset() const { return fDoObjNumReset; }
109			Bool_t GetDoBranchRef() const { return fDoBranchRef; }
110	loizides	1.3	Long64_t GetEntries(const char *tn=0) const;
111	loizides	1.14	Long64_t GetFileSize() const
112			{ return fFile!=0?fFile->GetEND():0; }
113			const TFile *GetFile() const { return fFile; }
114	paus	1.5	const char *GetFileName() const {
115	loizides	1.14	return Form("%s_%03d.root",GetPrefix(),GetFileNumber()); }
116			UShort_t GetFileNumber() const { return fFileNumber; }
117	paus	1.5	const char *GetFullName() const {
118	loizides	1.14	return Form("%s/%s",GetBaseURL(),GetFileName()); }
119			const char *GetPrefix() const { return fPrefix; }
120	loizides	1.11	const TTree GetTree(const char tn=0) const;
121			TTree GetTree(const char tn=0);
122	loizides	1.14	const TTree *GetTree(const string &tn) const { return GetTree(tn.c_str()); }
123			TTree *GetTree(const string &tn) { return GetTree(tn.c_str()); }
124	loizides	1.3	void Print(Option_t *option="") const;
125			void SetAutoFill(const char *tn, Bool_t b);
126	loizides	1.14	void SetAutoFill(const string &tn, Bool_t b)
127			{ SetAutoFill(tn.c_str(), b); }
128			void SetBaseURL(const char *b) { fBaseURL = b; }
129			void SetBaseURL(const string &b) { fBaseURL = b.c_str(); }
130			void SetCompressLevel(Int_t l) { fCompressLevel = l; }
131			void SetDefaultBrSize(Int_t s) { fDefBrSize=s; }
132			void SetDefaultSL(Int_t s) { fDefSL=s; }
133			void SetDoObjNumReset(Bool_t b) { fDoObjNumReset = b; }
134			void SetDoBranchRef(Bool_t b) { fDoBranchRef = b; }
135	loizides	1.7	void SetMaxSize(Long64_t s);
136	loizides	1.14	void SetPrefix(const char *p) { fPrefix = p; }
137			void SetPrefix(const string &p) { fPrefix = p.c_str(); }
138	loizides	1.1	void StoreObject(const TObject *obj);
139	loizides	1.12	void Terminate();
140	loizides	1.1
141			protected:
142	loizides	1.11	TString fBaseURL; //base url for tree storage
143			TString fPrefix; //prefix of file name
144			UShort_t fFileNumber; //current sequence number
145			Int_t fCompressLevel; //compression level used for TFile
146			Int_t fDefBrSize; //default buffer size for branches
147			Int_t fDefSL; //default split level for branches
148			Long64_t fMaxSize; //maximum file size for a file [Bytes]
149			const Long64_t fkMinFreeSpace; //minimum free space required for closing file
150			const Long64_t fkMinAvgSize; //minimum average entry size
151			Long64_t fEvtObjNum; //event object number offset (for TRef)
152			Bool_t fIsInit; //true if OpenFile() was called
153			Bool_t fDoObjNumReset; //true if obj. number resets automatically (def=0)
154			Bool_t fDoBranchRef; //true if BranchRef is called automatically (def=0)
155			TFile *fFile; //file being written
156			TObjArray fTrees; //array of tree(s) being filled
157	loizides	1.3
158			mithep::MyTree AddOrGetMyTree(const char tn);
159			mithep::MyTree GetMyTree(const char tn);
160			Bool_t IsInit() const { return fIsInit; }
161			Bool_t IsFull() const;
162	loizides	1.1	void OpenFile();
163			void CloseFile();
164
165	loizides	1.4	private:
166			const char CName(void obj) const;
167
168	loizides	1.13	ClassDef(TreeWriter, 0) // Tree writer class
169	loizides	1.1	};
170	loizides	1.6	}
171			#endif