DirManager.cc

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#include "EventFilter/Utilities/interface/DirManager.h"
#include "FWCore/Utilities/interface/Exception.h"
#include <iostream>

namespace evf{

  unsigned int DirManager::findHighestRun(){
    DIR *dir = opendir(dir_.c_str());
      struct dirent *buf;
      int maxrun = 0;
      while((buf=readdir(dir))){
    std::string dirnameNum = buf->d_name;
    if (dirnameNum.find("run")!=std::string::npos)
      dirnameNum=dirnameNum.substr(3,std::string::npos);
    if(atoi(dirnameNum.c_str()) > maxrun){maxrun = atoi(dirnameNum.c_str());}
      }
      closedir(dir);
      return maxrun;
  }
  std::string DirManager::findHighestRunDir(){
    std::string retval = dir_ + "/";
    std::string tmpdir;
    DIR *dir = opendir(dir_.c_str());
    struct dirent *buf;
    int maxrun = 0;
    while((buf=readdir(dir))){
      std::string dirnameNum = buf->d_name;
      if (dirnameNum.find("run")!=std::string::npos)
        dirnameNum=dirnameNum.substr(3,std::string::npos);
      if(atoi(dirnameNum.c_str()) > maxrun){tmpdir = buf->d_name; maxrun = atoi(dirnameNum.c_str());}
    }
    closedir(dir);
    retval += tmpdir;
    return retval;
  }

  std::string DirManager::findRunDir(unsigned int run){
    std::string retval = dir_ + "/";
    std::string tmpdir = "";
    DIR *dir = opendir(dir_.c_str());
    struct dirent *buf;
    while((buf=readdir(dir))){
      std::string dirnameNum = buf->d_name;
      if (dirnameNum.find("run")!=std::string::npos)
        dirnameNum=dirnameNum.substr(3,std::string::npos);
      if((unsigned int)atoi(dirnameNum.c_str()) ==run){tmpdir = buf->d_name; break;}
    }
    closedir(dir);
    if(tmpdir=="") throw cms::Exception("LogicError") << "Run Directory for Run " << run << " Not Found";
    retval += tmpdir;
    return retval;
  }
  bool DirManager::checkDirEmpty(std::string &d)
  {

    int filecount=0;
    DIR *dir = opendir(d.c_str());
    struct dirent *buf;
    while((buf=readdir(dir))){
      filecount++;
    }
    return (filecount==0);
  }
}