spf::SherpackFetcher Class Reference

#include <SherpackFetcher.h>

Public Member Functions
const char *	classname () const
int	CopyFile (std::string pathstring)
int	Fetch ()
	SherpackFetcher (edm::ParameterSet const &)
	~SherpackFetcher ()

Private Attributes
bool	FetchSherpack
std::string	SherpackChecksum
std::string	SherpackLocation
std::string	SherpaPath
std::string	SherpaProcess

Detailed Description

Definition at line 20 of file SherpackFetcher.h.

Constructor & Destructor Documentation

SherpackFetcher()

spf::SherpackFetcher::SherpackFetcher

(

edm::ParameterSet const &

pset

)

Definition at line 5 of file SherpackFetcher.cc.

References FetchSherpack, muonDTDigis_cfi::pset, SherpackChecksum, SherpackLocation, SherpaPath, SherpaProcess, and AlCaHLTBitMon_QueryRunRegistry::string.

                                                              {
    if (!pset.exists("SherpaProcess"))
      SherpaProcess = "";
    else
      SherpaProcess = pset.getParameter<std::string>("SherpaProcess");
    if (!pset.exists("SherpackLocation"))
      SherpackLocation = "";
    else
      SherpackLocation = pset.getParameter<std::string>("SherpackLocation");
    if (!pset.exists("SherpackChecksum"))
      SherpackChecksum = "";
    else
      SherpackChecksum = pset.getParameter<std::string>("SherpackChecksum");
    if (!pset.exists("FetchSherpack"))
      FetchSherpack = false;
    else
      FetchSherpack = pset.getParameter<bool>("FetchSherpack");
    if (!pset.exists("SherpaPath"))
      SherpaPath = "";
    else
      SherpaPath = pset.getParameter<std::string>("SherpaPath");
  }

~SherpackFetcher()

spf::SherpackFetcher::~SherpackFetcher

(

)

Definition at line 109 of file SherpackFetcher.cc.

{}

Member Function Documentation

classname()

const char* spf::SherpackFetcher::classname ( ) const

inline

Definition at line 26 of file SherpackFetcher.h.

{ return "SherpackFetcher"; }

CopyFile()

int spf::SherpackFetcher::CopyFile

(

std::string

pathstring

)

Definition at line 94 of file SherpackFetcher.cc.

References mps_check::command, gather_cfg::cout, Exception, and AlCaHLTBitMon_QueryRunRegistry::string.

Referenced by Fetch().

                                                    {
    //No need to backwards compatibility with the FnFileGet method, throw exception if only the relative path is given
    if ((pathstring.find("slc6_amd64_gcc") == 0) || (pathstring.find("slc5_amd64_gcc") == 0)) {
      throw cms::Exception("SherpaInterface") << "Old method of sherpack retrieving used, please use /cvmfs to store "
                                                 "files and specify the full path to the sherpack directory";
    }
    std::cout << "Trying to copy file " << pathstring << std::endl;
    std::string command = "cp " + pathstring + " .";
    FILE *pipe = popen(command.c_str(), "r");
    if (!pipe)
      throw cms::Exception("SherpaInterface") << "failed to copy Sherpack ";
    pclose(pipe);
    return 1;
  }

Fetch()

int spf::SherpackFetcher::Fetch

(

)

Definition at line 28 of file SherpackFetcher.cc.

References CopyFile(), gather_cfg::cout, Exception, FetchSherpack, geometryDiff::file, dqmdumpme::k, spu::md5_File(), fileinputsource_cfi::option, castor_dqm_sourceclient_file_cfg::path, SherpackChecksum, SherpackLocation, SherpaPath, SherpaProcess, AlCaHLTBitMon_QueryRunRegistry::string, spu::Untar(), and spu::Unzip().

Referenced by SherpaHadronizer::SherpaHadronizer().

                             {
    std::string option = "-c";
    std::string constr = "`cmsGetFnConnect frontier://smallfiles`";
    std::string sherpack = "sherpa_" + SherpaProcess + "_MASTER.tgz";
    std::string sherpackunzip = "sherpa_" + SherpaProcess + "_MASTER.tar";
    std::string path = SherpackLocation + "/" + sherpack;

    if (FetchSherpack == true) {
      std::cout << "SherpackFetcher: Trying to fetch the Sherpack " << sherpack << std::endl;
      int res = -1;

      res = CopyFile(path);

      if (res != 1) {
        throw cms::Exception("SherpaInterface")
            << "SherpackFetcher: Fetching of Sherpack did not succeed, terminating" << std::endl;
        return -1;
      }
      std::cout << "SherpackFetcher: Fetching successful" << std::endl;
    }

    std::ifstream my_file(sherpack.c_str());
    if (!my_file.good()) {
      throw cms::Exception("SherpaInterface") << "SherpackFetcher: No Sherpack found" << std::endl;
      return -2;
    }
    my_file.close();
    std::cout << "SherpackFetcher: Sherpack found" << std::endl;

    if (!SherpackChecksum.empty()) {
      char md5checksum[33];
      spu::md5_File(sherpack, md5checksum);
      for (int k = 0; k < 33; k++) {
        if (md5checksum[k] != SherpackChecksum[k]) {
          throw cms::Exception("SherpaInterface")
              << "SherpackFetcher: failure, calculated and specified checksums differ!" << std::endl;
          return -3;
        }
      }
      std::cout << "SherpackFetcher: Calculated checksum of the Sherpack is " << md5checksum << " and matches"
                << std::endl;
    } else {
      std::cout << "SherpackFetcher: Ignoring Checksum" << std::endl;
    }

    std::cout << "SherpackFetcher: Trying to unzip the Sherpack" << std::endl;
    int res = spu::Unzip(sherpack, sherpackunzip);
    if (res != 0) {
      throw cms::Exception("SherpaInterface") << "SherpackFetcher: Decompressing failed " << std::endl;
      return -4;
    }
    std::cout << "SherpackFetcher: Decompressing successful " << std::endl;

    FILE *file = fopen(const_cast<char *>(sherpackunzip.c_str()), "r");
    if (file) {
      std::cout << "SherpackFetcher: Decompressed Sherpack exists with name " << sherpackunzip
                << " starting to untar it" << std::endl;
      spu::Untar(file, SherpaPath.c_str());
    } else {
      throw cms::Exception("SherpaInterface") << "SherpackFetcher: Could not open decompressed Sherpack" << std::endl;
      return -5;
    }
    fclose(file);
    return 0;
  }

Member Data Documentation

FetchSherpack

bool spf::SherpackFetcher::FetchSherpack

private

Definition at line 32 of file SherpackFetcher.h.

Referenced by Fetch(), and SherpackFetcher().

SherpackChecksum

std::string spf::SherpackFetcher::SherpackChecksum

private

Definition at line 31 of file SherpackFetcher.h.

Referenced by Fetch(), and SherpackFetcher().

SherpackLocation

std::string spf::SherpackFetcher::SherpackLocation

private

Definition at line 30 of file SherpackFetcher.h.

Referenced by Fetch(), and SherpackFetcher().

SherpaPath

std::string spf::SherpackFetcher::SherpaPath

private

Definition at line 33 of file SherpackFetcher.h.

Referenced by Fetch(), and SherpackFetcher().

SherpaProcess

std::string spf::SherpackFetcher::SherpaProcess

private

Definition at line 29 of file SherpackFetcher.h.

Referenced by Fetch(), and SherpackFetcher().