#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

spf::SherpackFetcher::SherpackFetcher ( edm::ParameterSet const & pset )

Definition at line 5 of file SherpackFetcher.cc.

References edm::ParameterSet::exists(), FetchSherpack, edm::ParameterSet::getParameter(), 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");
   }

spf::SherpackFetcher::~SherpackFetcher ( )

Definition at line 109 of file SherpackFetcher.cc.

109 {}

Member Function Documentation

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

inline

Definition at line 26 of file SherpackFetcher.h.

26 { return "SherpackFetcher"; }

int spf::SherpackFetcher::CopyFile ( std::string pathstring )

Definition at line 94 of file SherpackFetcher.cc.

References mps_check::command, gather_cfg::cout, Exception, pipe::pipe(), 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;
   }

int spf::SherpackFetcher::Fetch ( )

Definition at line 28 of file SherpackFetcher.cc.

References CopyFile(), gather_cfg::cout, Exception, FetchSherpack, mergeVDriftHistosByStation::file, isotrackApplyRegressor::k, spu::md5_File(), fed_dqm_sourceclient-live_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;
   }