MRootNtpDumper Class Reference

ROOT ntuple dumper. More...

Inheritance diagram for MRootNtpDumper:

Classes
class	AliasBranch
class	Branch

Public Member Functions
	MRootNtpDumper ()
	constructor More...
	~MRootNtpDumper ()
	destructor More...
void	Require (const Diana::QEventInspector &evi)
void	Open (const std::string &filename, const Diana::QEventInspector &evi)
	Open file. More...
void	Dump (const Diana::QEventInspector &evi)
	Write event to file. More...
void	Close ()

Private Attributes
TFile *	fRootOutput
TTree *	fTree
std::string	fFileName
std::map< std::string, Diana::QAliases::AliasInfo >	fAliasMap
std::vector< Branch >	fBranches
std::vector< AliasBranch >	fAliasBranches
std::map< std::string, std::string >	fBranchAliasMap
bool	fAddPackedNeighbours

Detailed Description

ROOT ntuple dumper.

Author

Marco Vignati

This module writes ROOT files with a TTree named "qtree" and branches of the selected variables. Branches to be saved are defined in the cfg via two kind of parameters:

1. Alias:AliasName=true to save (base type) variables contained in a QObjects. In this case simple TBranches of base types are saved.
2. Member:MemberLabel=true to save a QObject with its members. In this case a standard TBranch of QObject is saved.

All selected aliases and QObjects are required to the QEvent, so that the MRootFileReader option "InclusiveMode=false" can be used together with this writer.
If no QObject is saved, the tree is made only of branches of base types, and the diana libraries are not needed to read it.
To dump a subset of entries, place filters in the sequence and set the "SkipEvents=true" option (see QFileWriter).

• Config example:

     writer RootNtpDumper
     verbosity = info
     enable = true
     OutputDir = .
     OutputFilePrefix = Light
     OutputFilesList = Ligth.list
     AliasFileName = cfg/aliases.txt
     Alias:Run = true
     Alias:Channel = true
     Alias:NsTime = true
     Member:DAQ@Pulse = true
     endmod
     

Parameters: (inherited parameters can be found in QFileWriter):

• AliasFileName [ string = cfg/aliases.txt ]: file containing TTree aliases for event members

Optional parameters:

• Description [string = Diana NTP]: TTree description
• TreeName [string = qtree]: TTree name
• Alias:AliasName [bool = false]: Parameter with alias AliasName will be added to the tree with name "AliasName". Note that only base type variables can be saved, e.g. int, float, bool, etc.
• Member:MemberLabel [bool = false]: event member with label MemberLabel will be added to the tree with name "MemberLabel" (as in MRootFileWriter)
• CustomAliasFilename [ string = ]: file containing additional aliases.

Reads:

• QEvent

Writes

• ROOT file with TTree (not a QTree)

Definition at line 65 of file MRootNtpDumper.hh.

Constructor & Destructor Documentation

MRootNtpDumper()

MRootNtpDumper::MRootNtpDumper

(

)

constructor

Definition at line 14 of file MRootNtpDumper.cc.

~MRootNtpDumper()

MRootNtpDumper::~MRootNtpDumper

(

)

destructor

Definition at line 19 of file MRootNtpDumper.cc.

Member Function Documentation

Close()

void MRootNtpDumper::Close

(

)

brief Close file

Definition at line 228 of file MRootNtpDumper.cc.

Dump()

void MRootNtpDumper::Dump

(

const Diana::QEventInspector &

evi

)

Write event to file.

Definition at line 221 of file MRootNtpDumper.cc.

Open()

void MRootNtpDumper::Open	(	const std::string &	filename,
		const Diana::QEventInspector &	evi
	)

Open file.

Definition at line 160 of file MRootNtpDumper.cc.

References MRootNtpDumper::Branch::address, MRootNtpDumper::AliasBranch::address, ap, MRootNtpDumper::Branch::name, MRootNtpDumper::AliasBranch::name, MRootNtpDumper::Branch::type, and MRootNtpDumper::AliasBranch::type.

Require()

void MRootNtpDumper::Require

(

const Diana::QEventInspector &

evi

)

Definition at line 24 of file MRootNtpDumper.cc.

References MRootNtpDumper::Branch::address, MRootNtpDumper::AliasBranch::address, err, QObjectInspector::MemberInfo::fAddress, QObjectInspector::MemberInfo::fBranchType, QAliases::FillFromFile(), QAliases::Find(), QObjectInspector::FindBaseType(), QAliases::Get(), QEventLabel::GetStringLabel(), QVdt::GetType(), QVdt::Int_QVdt, QEventLabel::name, MRootNtpDumper::Branch::name, MRootNtpDumper::AliasBranch::name, QEventLabel::owner, QERR_SUCCESS, MRootNtpDumper::Branch::type, and MRootNtpDumper::AliasBranch::type.

Member Data Documentation

fAddPackedNeighbours

bool MRootNtpDumper::fAddPackedNeighbours

private

Definition at line 105 of file MRootNtpDumper.hh.

fAliasBranches

std::vector<AliasBranch> MRootNtpDumper::fAliasBranches

private

Definition at line 103 of file MRootNtpDumper.hh.

fAliasMap

std::map<std::string,Diana::QAliases::AliasInfo> MRootNtpDumper::fAliasMap

private

Definition at line 101 of file MRootNtpDumper.hh.

fBranchAliasMap

std::map<std::string,std::string> MRootNtpDumper::fBranchAliasMap

private

Definition at line 104 of file MRootNtpDumper.hh.

fBranches

std::vector<Branch> MRootNtpDumper::fBranches

private

Definition at line 102 of file MRootNtpDumper.hh.

fFileName

std::string MRootNtpDumper::fFileName

private

Definition at line 100 of file MRootNtpDumper.hh.

fRootOutput

TFile* MRootNtpDumper::fRootOutput

private

Definition at line 98 of file MRootNtpDumper.hh.

fTree

TTree* MRootNtpDumper::fTree

private

Definition at line 99 of file MRootNtpDumper.hh.

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The documentation for this class was generated from the following files:

• pkg/rootrw/MRootNtpDumper.hh
• pkg/rootrw/MRootNtpDumper.cc