| The Gaudi Framework v32r1 (f65d50dc)

RootCompressionSettings.cpp
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1 // STD
2 #include <stdexcept>
3
4 // local
5 #include "RootCompressionSettings.h"
6
7 // ROOT
8 #include "Compression.h"
9
10 //-----------------------------------------------------------------------------
11 // Implementation file for class : RootCompressionSettings
12 //
13 // 2013-10-24 : Chris Jones
14 //-----------------------------------------------------------------------------
15
16 //=============================================================================
17 // Standard constructor, initializes variables
18 //=============================================================================
19 RootHistCnv::RootCompressionSettings::RootCompressionSettings( const std::string& settings )
20 : m_level( ROOT::CompressionSettings( ROOT::kZLIB, 1 ) ) {
21 const std::string::size_type idx = settings.find( ':' );
22 if ( idx != std::string::npos ) {
23 // Get compression algorithm type
24 const std::string alg = settings.substr( 0, idx );
25 ROOT::ECompressionAlgorithm alg_code = ROOT::kUseGlobalSetting;
26 if ( alg == "ZLIB" ) {
27 alg_code = ROOT::kZLIB;
28 } else if ( alg == "LZMA" ) {
29 alg_code = ROOT::kLZMA;
30 } else {
31 throw std::runtime_error( "ERROR: Unknown ROOT compression algorithm:" + alg );
32 }
33
34 // get compression level
35 const std::string slev = settings.substr( idx + 1 );
36 const int ilev = std::stoi( slev );
37
38 // set the level
39 m_level = ROOT::CompressionSettings( alg_code, ilev );
40 }
41 }
42
43 //=============================================================================
RootCompressionSettings.h
ManySmallAlgs.alg
alg
Definition: ManySmallAlgs.py:69
ROOT
Definition: IMagneticFieldSvc.h:9
std::string
STL class.
std::runtime_error
STL class.
RootHistCnv::RootCompressionSettings::RootCompressionSettings
RootCompressionSettings(const std::string &settings)
Standard constructor.
Definition: RootCompressionSettings.cpp:19
std::string::find
T find(T... args)
std::string::substr
T substr(T... args)
std::stoi
T stoi(T... args)
RootHistCnv::RootCompressionSettings::m_level
int m_level
The cached ROOT compression level int.
Definition: RootCompressionSettings.h:21