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RNTupleMerger.cxx File Reference
RNTuple-related classes
#include <ROOT/RError.hxx>
#include <ROOT/RNTuple.hxx>
#include <ROOT/RNTupleDescriptor.hxx>
#include <ROOT/RNTupleMerger.hxx>
#include <ROOT/RNTupleModel.hxx>
#include <ROOT/RNTupleTypes.hxx>
#include <ROOT/RNTupleUtils.hxx>
#include <ROOT/RPageAllocator.hxx>
#include <ROOT/RPageStorageFile.hxx>
#include <ROOT/RPageStorage.hxx>
#include <ROOT/RClusterPool.hxx>
#include <ROOT/RNTupleSerialize.hxx>
#include <ROOT/RNTupleZip.hxx>
#include <ROOT/RColumnElementBase.hxx>
#include <TROOT.h>
#include <TFileMergeInfo.h>
#include <TFile.h>
#include <TKey.h>
#include <algorithm>
#include <deque>
#include <initializer_list>
#include <unordered_map>
#include <vector>
Include dependency graph for RNTupleMerger.cxx:

Classes

struct  ROOT::Experimental::Internal::RColumnMergeInfo
 
struct  ROOT::Experimental::Internal::RNTupleMergeData
 
struct  ROOT::Experimental::Internal::RSealedPageMergeData
 

Namespaces

namespace  ROOT
 
namespace  ROOT::Experimental
 
namespace  ROOT::Experimental::Internal
 

Macros

#define SKIP_OR_ABORT(errMsg)
 

Functions

static void AddColumnsFromField (std::vector< RColumnMergeInfo > &columns, const ROOT::RNTupleDescriptor &srcDesc, RNTupleMergeData &mergeData, const ROOT::RFieldDescriptor &srcFieldDesc, const ROOT::RFieldDescriptor &dstFieldDesc, const std::string &prefix="")
 
static bool BeginsWithDelimitedWord (const TString &str, const char *word)
 
static std::optional< std::type_index > ColumnInMemoryType (std::string_view fieldType, ENTupleColumnType onDiskType)
 
static ROOT::RResult< RDescriptorsComparison > CompareDescriptorStructure (const ROOT::RNTupleDescriptor &dst, const ROOT::RNTupleDescriptor &src)
 Compares the top level fields of dst and src and determines whether they can be merged or not.
 
static ROOT::RResult< void > ExtendDestinationModel (std::span< const ROOT::RFieldDescriptor * > newFields, ROOT::RNTupleModel &dstModel, RNTupleMergeData &mergeData, std::vector< RCommonField > &commonFields)
 
static RColumnInfoGroup GatherColumnInfos (const RDescriptorsComparison &descCmp, const ROOT::RNTupleDescriptor &srcDesc, RNTupleMergeData &mergeData)
 
static ROOT::RResult< void > GenerateZeroPagesForColumns (size_t nEntriesToGenerate, std::span< const RColumnMergeInfo > columns, RSealedPageMergeData &sealedPageData, ROOT::Internal::RPageAllocator &pageAlloc, const ROOT::RNTupleDescriptor &dstDescriptor, const RNTupleMergeData &mergeData)
 
static bool IsSplitOrUnsplitVersionOf (ENTupleColumnType a, ENTupleColumnType b)
 
static ROOT::RLogChannel & NTupleMergeLog ()
 
std::ostream & ROOT::Experimental::Internal::operator<< (std::ostream &os, const std::optional< ROOT::RColumnDescriptor::RValueRange > &x)
 
static std::optional< ENTupleMergeErrBehavior > ParseOptionErrBehavior (const TString &opts)
 
static std::optional< ENTupleMergingMode > ParseOptionMergingMode (const TString &opts)
 
static std::optional< ENTupleMergeVersionBehavior > ParseOptionVersionBehavior (const TString &opts)
 
template<typename T >
static std::optional< T > ParseStringOption (const TString &opts, const char *pattern, std::initializer_list< std::pair< const char *, T > > validValues)
 
static void PrefillColumnMap (const ROOT::RNTupleDescriptor &desc, const ROOT::RFieldDescriptor &fieldDesc, ColumnIdMap_t &colIdMap, const std::string &prefix="")
 

Detailed Description

Author
Jakob Blomer jblom.nosp@m.er@c.nosp@m.ern.c.nosp@m.h, Max Orok maxwe.nosp@m.llor.nosp@m.ok@gm.nosp@m.ail..nosp@m.com, Alaettin Serhan Mete amete.nosp@m.@anl.nosp@m..gov, Giacomo Parolini giaco.nosp@m.mo.p.nosp@m.aroli.nosp@m.ni@c.nosp@m.ern.c.nosp@m.h
Date
2020-07-08
Warning
This is part of the ROOT 7 prototype! It will change without notice. It might trigger earthquakes. Feedback is welcome!

Definition in file RNTupleMerger.cxx.

Macro Definition Documentation

◆ SKIP_OR_ABORT

#define SKIP_OR_ABORT ( errMsg)
Value:
do { \
if (mergeOpts.fErrBehavior == ENTupleMergeErrBehavior::kSkip) { \
R__LOG_WARNING(NTupleMergeLog()) << "Skipping RNTuple due to: " << (errMsg); \
continue; \
} else { \
return R__FAIL(errMsg); \
} \
} while (0)
R__FAIL
#define R__FAIL(msg)
Short-hand to return an RResult<T> in an error state; the RError is implicitly converted into RResult...
Definition RError.hxx:300
NTupleMergeLog
static ROOT::RLogChannel & NTupleMergeLog()
Definition RNTupleMerger.cxx:55
TRangeDynCast
ROOT::Detail::TRangeCast< T, true > TRangeDynCast
TRangeDynCast is an adapter class that allows the typed iteration through a TCollection.
Definition TCollection.h:360

Function Documentation

◆ AddColumnsFromField()

static void AddColumnsFromField ( std::vector< RColumnMergeInfo > & columns,
const ROOT::RNTupleDescriptor & srcDesc,
RNTupleMergeData & mergeData,
const ROOT::RFieldDescriptor & srcFieldDesc,
const ROOT::RFieldDescriptor & dstFieldDesc,
const std::string & prefix = "" )
static

Definition at line 1077 of file RNTupleMerger.cxx.

◆ BeginsWithDelimitedWord()

static bool BeginsWithDelimitedWord ( const TString & str,
const char * word )
static

Definition at line 63 of file RNTupleMerger.cxx.

◆ ColumnInMemoryType()

static std::optional< std::type_index > ColumnInMemoryType ( std::string_view fieldType,
ENTupleColumnType onDiskType )
static

Definition at line 1042 of file RNTupleMerger.cxx.

◆ CompareDescriptorStructure()

static ROOT::RResult< RDescriptorsComparison > CompareDescriptorStructure ( const ROOT::RNTupleDescriptor & dst,
const ROOT::RNTupleDescriptor & src )
static

Compares the top level fields of dst and src and determines whether they can be merged or not.

In addition, returns the differences between dst and src's structures

Definition at line 462 of file RNTupleMerger.cxx.

◆ ExtendDestinationModel()

static ROOT::RResult< void > ExtendDestinationModel ( std::span< const ROOT::RFieldDescriptor * > newFields,
ROOT::RNTupleModel & dstModel,
RNTupleMergeData & mergeData,
std::vector< RCommonField > & commonFields )
static

Definition at line 663 of file RNTupleMerger.cxx.

◆ GatherColumnInfos()

static RColumnInfoGroup GatherColumnInfos ( const RDescriptorsComparison & descCmp,
const ROOT::RNTupleDescriptor & srcDesc,
RNTupleMergeData & mergeData )
static

Definition at line 1156 of file RNTupleMerger.cxx.

◆ GenerateZeroPagesForColumns()

static ROOT::RResult< void > GenerateZeroPagesForColumns ( size_t nEntriesToGenerate,
std::span< const RColumnMergeInfo > columns,
RSealedPageMergeData & sealedPageData,
ROOT::Internal::RPageAllocator & pageAlloc,
const ROOT::RNTupleDescriptor & dstDescriptor,
const RNTupleMergeData & mergeData )
static

Definition at line 732 of file RNTupleMerger.cxx.

◆ IsSplitOrUnsplitVersionOf()

static bool IsSplitOrUnsplitVersionOf ( ENTupleColumnType a,
ENTupleColumnType b )
static

Definition at line 432 of file RNTupleMerger.cxx.

◆ NTupleMergeLog()

static ROOT::RLogChannel & NTupleMergeLog ( )
static

Definition at line 55 of file RNTupleMerger.cxx.

◆ ParseOptionErrBehavior()

static std::optional< ENTupleMergeErrBehavior > ParseOptionErrBehavior ( const TString & opts)
static

Definition at line 101 of file RNTupleMerger.cxx.

◆ ParseOptionMergingMode()

static std::optional< ENTupleMergingMode > ParseOptionMergingMode ( const TString & opts)
static

Definition at line 91 of file RNTupleMerger.cxx.

◆ ParseOptionVersionBehavior()

static std::optional< ENTupleMergeVersionBehavior > ParseOptionVersionBehavior ( const TString & opts)
static

Definition at line 110 of file RNTupleMerger.cxx.

◆ ParseStringOption()

template<typename T >
static std::optional< T > ParseStringOption ( const TString & opts,
const char * pattern,
std::initializer_list< std::pair< const char *, T > > validValues )
static

Definition at line 74 of file RNTupleMerger.cxx.

◆ PrefillColumnMap()

static void PrefillColumnMap ( const ROOT::RNTupleDescriptor & desc,
const ROOT::RFieldDescriptor & fieldDesc,
ColumnIdMap_t & colIdMap,
const std::string & prefix = "" )
static

Definition at line 1175 of file RNTupleMerger.cxx.