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FileReadTool.cpp
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/***********************************************************************************\
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* (c) Copyright 1998-2024 CERN for the benefit of the LHCb and ATLAS collaborations *
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* *
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* This software is distributed under the terms of the Apache version 2 licence, *
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* copied verbatim in the file "LICENSE". *
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* *
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* In applying this licence, CERN does not waive the privileges and immunities *
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* granted to it by virtue of its status as an Intergovernmental Organization *
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* or submit itself to any jurisdiction. *
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\***********************************************************************************/
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#include <
GaudiKernel/AlgTool.h
>
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#include <
GaudiKernel/IFileAccess.h
>
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#include <fstream>
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struct
FileReadTool
:
extends
<AlgTool, IFileAccess> {
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using
extends::extends;
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std::unique_ptr<std::istream>
open
( std::string
const
& url )
override
{
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// remove the optional "file://" from the beginning of the url
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constexpr
auto
prefix = std::string_view{
"file://"
};
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return
std::make_unique<std::ifstream>( url.compare( 0, prefix.size(), prefix ) == 0 ? url.substr( prefix.size() )
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: url );
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}
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const
std::vector<std::string>&
protocols
()
const override
{
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static
const
std::vector<std::string> s_protocols = { {
"file"
} };
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return
s_protocols;
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}
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};
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DECLARE_COMPONENT
(
FileReadTool
)
AlgTool.h
IFileAccess.h
DECLARE_COMPONENT
#define DECLARE_COMPONENT(type)
Definition
PluginServiceV1.h:45
extends
Base class used to extend a class implementing other interfaces.
Definition
extends.h:19
FileReadTool
Basic implementation of the IFileAccess interface.
Definition
FileReadTool.cpp:24
FileReadTool::open
std::unique_ptr< std::istream > open(std::string const &url) override
Definition
FileReadTool.cpp:28
FileReadTool::protocols
const std::vector< std::string > & protocols() const override
Protocols supported by the instance.
Definition
FileReadTool.cpp:36
GaudiUtils
src
component
FileReadTool.cpp
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