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YODA - Yet more Objects for Data Analysis 2.0.2
Reader.cc
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1// -*- C++ -*-
2//
3// This file is part of YODA -- Yet more Objects for Data Analysis
4// Copyright (C) 2008-2024 The YODA collaboration (see AUTHORS for details)
5//
6#include "YODA/ReaderYODA.h"
7#include "YODA/ReaderFLAT.h"
9
10using namespace std;
11
12namespace YODA {
13
14
15 Reader& mkReader(const string& name) {
16 // Determine the format from the string (a file or file extension)
17 const size_t lastdot = name.find_last_of(".");
18 string fmt = Utils::toLower(lastdot == string::npos ? name : name.substr(lastdot+1));
19 if (fmt == "gz") {
20 #ifndef HAVE_LIBZ
21 throw UserError("YODA was compiled without zlib support: can't read " + name);
22 #endif
23 const size_t lastbutonedot = (lastdot == string::npos) ? string::npos : name.find_last_of(".", lastdot-1);
24 fmt = Utils::toLower(lastbutonedot == string::npos ? name : name.substr(lastbutonedot+1));
25 }
26 // Create the appropriate Reader
27 if (Utils::startswith(fmt, "yoda")) return ReaderYODA::create();
28 if (Utils::startswith(fmt, "dat" )) return ReaderFLAT::create();
29 if (Utils::startswith(fmt, "flat")) return ReaderFLAT::create();
30 throw UserError("Format cannot be identified from string '" + name + "'");
31 }
32
33
34}
static Reader & create()
Singleton creation function.
static Reader & create()
Singleton creation function.
Pure virtual base class for various output writers.
Definition Reader.h:23
Error for problems introduced outside YODA, to put it nicely.
Definition Exceptions.h:100
Anonymous namespace to limit visibility.
Reader & mkReader(const std::string &format_name)
Factory function to make a reader object by format name or a filename.
Definition Reader.cc:15