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RNTupleMerger.cxx File Reference
#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 for ROOT features in testing.
 
namespace  ROOT::Experimental::Internal
 

Macros

#define SKIP_OR_ABORT(errMsg)
 

Functions

static void AddColumnExtensionsInFieldOrder (const ROOT::RFieldDescriptor &field, const ROOT::RNTupleDescriptor &desc, const FieldCollectionMap_t< RColReprExtension > &extensions, std::vector< std::pair< const ROOT::RFieldDescriptor *, std::vector< RColReprExtension > > > &outExtensions, std::unordered_map< ROOT::DescriptorId_t, std::vector< const ROOT::RFieldDescriptor * > > &outProjectionPointees)
 
static void AddColumnsFromField (std::vector< RColumnMergeInfo > &columns, const ROOT::RNTupleDescriptor &srcDesc, const FieldCollectionMap_t< RColReprMapping > &colReprMappings, 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 (RDescriptorsComparison &descCmp, ROOT::RNTupleModel &dstModel, RNTupleMergeData &mergeData)
 
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 void MatchColumnRepresentations (const ROOT::RNTupleDescriptor &srcDesc, const ROOT::RNTupleDescriptor &dstDesc, const ROOT::RFieldDescriptor &srcField, const ROOT::RFieldDescriptor &dstField, RDescriptorsComparison &result, std::vector< std::string > &errors)
 
static ROOT::RLogChannel & NTupleMergeLog ()
 
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:322
NTupleMergeLog
static ROOT::RLogChannel & NTupleMergeLog()
Definition RNTupleMerger.cxx:54
TRangeDynCast
ROOT::Detail::TRangeCast< T, true > TRangeDynCast
TRangeDynCast is an adapter class that allows the typed iteration through a TCollection.
Definition TCollection.h:359

Function Documentation

◆ AddColumnExtensionsInFieldOrder()

static void AddColumnExtensionsInFieldOrder ( const ROOT::RFieldDescriptor & field,
const ROOT::RNTupleDescriptor & desc,
const FieldCollectionMap_t< RColReprExtension > & extensions,
std::vector< std::pair< const ROOT::RFieldDescriptor *, std::vector< RColReprExtension > > > & outExtensions,
std::unordered_map< ROOT::DescriptorId_t, std::vector< const ROOT::RFieldDescriptor * > > & outProjectionPointees )
static

Definition at line 1304 of file RNTupleMerger.cxx.

◆ AddColumnsFromField()

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

Definition at line 1180 of file RNTupleMerger.cxx.

◆ BeginsWithDelimitedWord()

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

Definition at line 62 of file RNTupleMerger.cxx.

◆ ColumnInMemoryType()

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

Definition at line 1144 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 547 of file RNTupleMerger.cxx.

◆ ExtendDestinationModel()

static ROOT::RResult< void > ExtendDestinationModel ( RDescriptorsComparison & descCmp,
ROOT::RNTupleModel & dstModel,
RNTupleMergeData & mergeData )
static

Definition at line 700 of file RNTupleMerger.cxx.

◆ GatherColumnInfos()

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

Definition at line 1271 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 811 of file RNTupleMerger.cxx.

◆ MatchColumnRepresentations()

static void MatchColumnRepresentations ( const ROOT::RNTupleDescriptor & srcDesc,
const ROOT::RNTupleDescriptor & dstDesc,
const ROOT::RFieldDescriptor & srcField,
const ROOT::RFieldDescriptor & dstField,
RDescriptorsComparison & result,
std::vector< std::string > & errors )
static

Definition at line 442 of file RNTupleMerger.cxx.

◆ NTupleMergeLog()

static ROOT::RLogChannel & NTupleMergeLog ( )
static

Definition at line 54 of file RNTupleMerger.cxx.

◆ ParseOptionErrBehavior()

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

Definition at line 100 of file RNTupleMerger.cxx.

◆ ParseOptionMergingMode()

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

Definition at line 90 of file RNTupleMerger.cxx.

◆ ParseOptionVersionBehavior()

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

Definition at line 109 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 73 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 1285 of file RNTupleMerger.cxx.