art::TrivialFileTransfer Class Reference

#include "TrivialFileTransfer.h"

Inheritance diagram for art::TrivialFileTransfer:

Classes
struct	Config

Public Types
using	Parameters = ServiceTable< Config >

Public Member Functions
	TrivialFileTransfer (Parameters const &pset)
int	translateToLocalFilename (std::string const &uri, std::string &fileFQname)

Private Member Functions
int	doTranslateToLocalFilename (std::string const &uri, std::string &fileFQname) override
int	stripURI (std::string const &uri, std::string &inFileName) const
int	copyFile (std::ifstream &in, std::ofstream &out) const

Detailed Description

Definition at line 26 of file TrivialFileTransfer.h.

Member Typedef Documentation

using art::TrivialFileTransfer::Parameters = ServiceTable<Config>

Definition at line 31 of file TrivialFileTransfer.h.

Constructor & Destructor Documentation

art::TrivialFileTransfer::TrivialFileTransfer

(

TrivialFileTransfer::Parameters const &

pset

)

Definition at line 18 of file TrivialFileTransfer_service.cc.

{}

Member Function Documentation

int art::TrivialFileTransfer::copyFile ( std::ifstream &  in, std::ofstream &  out  ) const

private

Definition at line 72 of file TrivialFileTransfer_service.cc.

References DEFINE_ART_SERVICE_INTERFACE_IMPL.

{
  std::copy(std::istream_iterator<char>{in},
            std::istream_iterator<char>{},
            std::ostream_iterator<char>{out});
  return 0;
}

int art::TrivialFileTransfer::doTranslateToLocalFilename ( std::string const &  uri, std::string &  fileFQname  )

overrideprivatevirtual

Implements art::FileTransfer.

Definition at line 23 of file TrivialFileTransfer_service.cc.

References art::detail::FDS::BAD_REQUEST, art::detail::FDS::NOT_FOUND, art::PENDING, and art::SUCCESS.

{
  if (uri.substr(0, 7) != fileURI) {
    fileFQname = uri; // Unexpected protocol: pass through.
    return FileTransferStatus::SUCCESS;
  }

  FileTransferStatus stat = FileTransferStatus::PENDING;
  fileFQname = "";
  std::string inFileName;
  if (stripURI(uri, inFileName) != 0) {
    stat = FileTransferStatus::BAD_REQUEST;
    return stat;
  }

  ifstream infile{inFileName.c_str()};
  if (!infile) {
    stat = FileTransferStatus::NOT_FOUND;
    return stat;
  }
  fileFQname = inFileName;
  stat = FileTransferStatus::SUCCESS;
  return stat;
  // Implementation plan details -- alternatives not chosen:
  // x We could merely return the file name (the URI with file:// stripped off).
  //   Since the SAM developers may look at this file as a template for their
  //   real GeneralFileTransfer service, it is perhaps better to do the work of
  //   making a copy into a designated area.
  // x We  merely strip the file:// from the URI; this adhoc class is not beefed
  //   up to deal with genuine web access.
  // x An alternative would be to embed the last part of the file FQname into
  // the
  //   scratch file name, to try to maintain traceability in case things break.
}

int art::TrivialFileTransfer::stripURI ( std::string const &  uri, std::string &  inFileName  ) const

private

Definition at line 60 of file TrivialFileTransfer_service.cc.

{
  if (uri.substr(0, 7) != fileURI) {
    inFileName = "";
    return 1;
  }
  inFileName = uri.substr(7);
  return 0;
}

int art::FileTransfer::translateToLocalFilename ( std::string const &  uri, std::string &  fileFQname  )

inlineinherited

Definition at line 34 of file FileTransfer.h.

References DECLARE_ART_SERVICE_INTERFACE, art::FileTransfer::doTranslateToLocalFilename(), and art::LEGACY.

{
  CET_ASSERT_ONLY_ONE_THREAD();
  return doTranslateToLocalFilename(uri, fileFQname);
}

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The documentation for this class was generated from the following files:

• art/Framework/Services/Optional/TrivialFileTransfer.h
• art/Framework/Services/Optional/TrivialFileTransfer_service.cc