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#include <TString.h> |
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#include <TFile.h> |
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#include <TTree.h> |
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#include <TObjArray.h> |
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//-------------------------------------------------------------------------------------------------- |
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// |
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// TreeWriter |
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// |
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// Class implementing a tree writing infra structure. The class creates and maintaines |
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// a tree with name "tname" as given in the constructor. The tree is stored in a file |
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// or in multiple files if needed, where the file path name and maximum size can be |
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// a standard tree with name "tname" as given in the constructor. The tree is stored in |
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// a file or in multiple files if needed, where the file path name and maximum size can be |
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// specified. Using TreeWriter::AddBranch allows to add various branches to the tree. |
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// The user has to make sure that (s)he calls TreeWriter::BeginEvent and |
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// TreeWriter::EndEvent for every event before and after filling of the branch |
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// structures. |
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// structures. Note that in addition to the standard tree one can create new |
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// tree(s) in the same file using the TreeWriter::AddBranchToTree member functions. |
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// |
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// Authors: C.Loizides |
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// |
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namespace mithep |
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{ |
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class MyTree : public TTree |
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{ |
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public: |
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MyTree(const char* name, const char* title, Int_t splitlevel = 99) : |
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TTree(name,title, splitlevel), fAutoFill(1) {} |
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Bool_t GetAutoFill() const { return fAutoFill; } |
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void SetAutoFill(Bool_t b) { fAutoFill = b; } |
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protected: |
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Bool_t fAutoFill; //!=true then fill automatically in TreeWriter (def=1) |
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}; |
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|
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class TreeWriter : public TNamed |
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{ |
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public: |
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TreeWriter(const char *tname="MitTree", Bool_t doreset = kFALSE); |
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~TreeWriter(); |
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void AddBranch(const char *name, const char *cname, void *obj, |
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Int_t bsize, Int_t level); |
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void AddBranch(const char *name, const char *cname, void *obj, |
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Int_t bsize); |
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void AddBranch(const char *name, const char *cname, void *obj); |
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void AddBranch(const char *name, const char *cname, |
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void *obj, Int_t bsize, Int_t level); |
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void AddBranch(const char *name, const char *cname, |
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void *obj, Int_t bsize); |
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void AddBranch(const char *name, const char *cname, |
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void *obj); |
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void AddBranchToTree(const char *tname, const char *name, const char *cname, |
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void *obj, Int_t bsize, Int_t level); |
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void AddBranchToTree(const char *tname, const char *name, const char *cname, |
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void *obj, Int_t bsize); |
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void AddBranchToTree(const char *tname, const char *name, const char *cname, |
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void *obj); |
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Bool_t BeginEvent(Bool_t doreset=kFALSE); |
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Bool_t EndEvent(Bool_t doreset=kFALSE); |
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const char *GetBaseURL() const { return fBaseURL.IsNull() ? "." : fBaseURL; } |
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Int_t GetCompressLevel() const { return fCompressLevel; } |
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Long64_t GetEntries() const { return fTree != 0 ? fTree->GetEntries() : 0; } |
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Long64_t GetFileSize() const { return fFile != 0 ? fFile->GetEND() : 0; } |
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const TFile *GetFile() const { return fFile; } |
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const char *GetFileName() const { return Form("%s_%03d.root", |
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GetPrefix(), GetFileNumber()); } |
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UShort_t GetFileNumber() const { return fFileNumber; } |
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const char *GetFullName() const { return Form("%s/%s", |
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GetBaseURL(), GetFileName()); } |
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const char *GetPrefix() const { return fPrefix; } |
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void Print(Option_t *option="") const; |
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void SetBaseURL(const char *b) { fBaseURL = b; } |
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void SetCompressLevel(Int_t l) { fCompressLevel = l; } |
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void SetDefaultBrSize(Int_t s) { fDefBrSize=s; } |
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void SetDefaultSL(Int_t s) { fDefSL=s;} |
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void SetPrefix(const char *p) { fPrefix = p; } |
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const char *GetBaseURL() const { return fBaseURL.IsNull() ? "." : fBaseURL; } |
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Int_t GetCompressLevel() const { return fCompressLevel; } |
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Long64_t GetEntries(const char *tn=0) const; |
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Long64_t GetFileSize() const { return fFile != 0 ? fFile->GetEND() : 0; } |
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const TFile *GetFile() const { return fFile; } |
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const char *GetFileName() const { return Form("%s_%03d.root", |
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GetPrefix(), GetFileNumber()); } |
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UShort_t GetFileNumber() const { return fFileNumber; } |
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const char *GetFullName() const { return Form("%s/%s", |
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GetBaseURL(), GetFileName()); } |
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const char *GetPrefix() const { return fPrefix; } |
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const TTree *GetTree(const char *tn) const; |
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TTree *GetTree(const char *tn); |
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void Print(Option_t *option="") const; |
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void SetAutoFill(const char *tn, Bool_t b); |
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void SetBaseURL(const char *b) { fBaseURL = b; } |
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void SetCompressLevel(Int_t l) { fCompressLevel = l; } |
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void SetDefaultBrSize(Int_t s) { fDefBrSize=s; } |
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void SetDefaultSL(Int_t s) { fDefSL=s;} |
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void SetMaxSize(Long64_t s) { fMaxSize=s; } |
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void SetPrefix(const char *p) { fPrefix = p; } |
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void StoreObject(const TObject *obj); |
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void SetMaxSize(Long64_t s) { fMaxSize=s; } |
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protected: |
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TString fBaseURL; //base url for tree storage |
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TString fPrefix; //prefix of file name |
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UShort_t fFileNumber; //current sequence number |
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Int_t fCompressLevel; //compression level used for TFile |
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Int_t fDefBrSize; //default buffer size for branches |
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Int_t fDefSL; //default split level for branches |
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Long64_t fMaxSize; //maximum file size for a file [Bytes] |
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const Long64_t fkMinFreeSpace; //minimum free space required for closing file |
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const Long64_t fkMinAvgSize; //minimum average entry size |
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Long64_t fEvtObjNum; //event object number offset (for TRef) |
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Bool_t fIsInit; //true if OpenFile() was called |
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Bool_t fDoObjNumReset; //true if obj. number resets automatically (def=0) |
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TFile *fFile; //file being written |
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TTree *fTree; //tree being filled |
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|
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Bool_t IsInit() const { return fIsInit; } |
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Bool_t IsFull() const; |
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TString fBaseURL; //base url for tree storage |
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TString fPrefix; //prefix of file name |
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UShort_t fFileNumber; //current sequence number |
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Int_t fCompressLevel; //compression level used for TFile |
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Int_t fDefBrSize; //default buffer size for branches |
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Int_t fDefSL; //default split level for branches |
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Long64_t fMaxSize; //maximum file size for a file [Bytes] |
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const Long64_t fkMinFreeSpace; //minimum free space required for closing file |
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const Long64_t fkMinAvgSize; //minimum average entry size |
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Long64_t fEvtObjNum; //event object number offset (for TRef) |
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Bool_t fIsInit; //true if OpenFile() was called |
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Bool_t fDoObjNumReset; //true if obj. number resets automatically (def=0) |
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TFile *fFile; //file being written |
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TObjArray fTrees; //array of tree(s) being filled |
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|
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mithep::MyTree *AddOrGetMyTree(const char *tn); |
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mithep::MyTree *GetMyTree(const char *tn); |
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Bool_t IsInit() const { return fIsInit; } |
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Bool_t IsFull() const; |
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void OpenFile(); |
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void CloseFile(); |
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