Line data    Source code

       1              : //
       2              : // DUNE DAQ modification notice:
       3              : // This file has been modified from the original ATLAS oks_utils source for the DUNE DAQ project.
       4              : // Fork baseline commit: c2e7dfc7 (2022-03-30).
       5              : // Renamed since fork: no.
       6              : //
       7              : 
       8              : 
       9              : #include "oksutils/oks/tz.hpp"
      10              : 
      11              : #include "ers/ers.hpp"
      12              : #include "logging/Logging.hpp"
      13              : 
      14              : #include <boost/date_time/posix_time/posix_time_types.hpp>
      15              : #include <boost/date_time/posix_time/time_formatters.hpp>
      16              : #include <boost/date_time/posix_time/time_parsers.hpp>
      17              : 
      18              : #include <iostream>
      19              : #include <stdexcept>
      20              : #include <string>
      21              : 
      22            0 : oks::tz::DB::DB()
      23              : {
      24            0 :   const char * tz_spec_file = ::getenv("BOOST_DATE_TIME_TZ_SPEC");
      25              : 
      26            0 :   if(!tz_spec_file || !*tz_spec_file)
      27              :     {
      28            0 :       throw std::runtime_error ("cannot read value of BOOST_DATE_TIME_TZ_SPEC environment variable");
      29              :     }
      30              : 
      31            0 :   TLOG_DEBUG(1) <<  "Boost time-zone specification file is \'" << tz_spec_file << '\'' ;
      32              : 
      33            0 :   try
      34              :     {
      35            0 :       m_tz_db.load_from_file(tz_spec_file);
      36              :     }
      37            0 :   catch(const std::exception& ex)
      38              :     {
      39            0 :       std::ostringstream text;
      40            0 :       text << "cannot read Boost time-zone specification file \"" << tz_spec_file << "\": " << ex.what();
      41            0 :       throw std::runtime_error (text.str().c_str());
      42            0 :     }
      43            0 : }
      44              : 
      45              : boost::local_time::time_zone_ptr
      46            0 : oks::tz::DB::get_tz_ptr(const std::string& region)
      47              : {
      48            0 :   boost::local_time::time_zone_ptr tz_ptr = m_tz_db.time_zone_from_region(region);
      49              : 
      50            0 :   if (!tz_ptr)
      51              :     {
      52            0 :       std::ostringstream text;
      53            0 :       text << "cannot find time-zone \'" << region << '\'';
      54            0 :       throw std::runtime_error(text.str().c_str());
      55            0 :     }
      56              : 
      57            0 :   return tz_ptr;
      58            0 : }
      59              : 
      60              : std::vector<std::string>
      61            0 : oks::tz::DB::get_regions()
      62              : {
      63            0 :   return m_tz_db.region_list();
      64              : }
      65              : 
      66              : boost::posix_time::ptime
      67            0 : oks::tz::str_2_posix_time(const std::string& in, boost::local_time::time_zone_ptr tz_ptr, const char * value)
      68              : {
      69            0 :   std::string s(in);
      70            0 :   std::replace(s.begin(), s.end(), 'T', ' ');
      71              : 
      72            0 :   boost::posix_time::ptime t;
      73              : 
      74              :   // convert string to time
      75            0 :   try
      76              :     {
      77            0 :       t = boost::posix_time::time_from_string(s);
      78              :     }
      79            0 :   catch (const std::exception& ex)
      80              :     {
      81            0 :       std::ostringstream text;
      82            0 :       text << "cannot parse " << value << " = \'" << in << "\': \"" << ex.what() << "\" (ISO 8601 format (YYYY-MM-DD HH:MM:SS) is expected).";
      83            0 :       throw std::runtime_error(text.str().c_str());
      84            0 :     }
      85              : 
      86              : 
      87              :   // convert local time to UTC, if the time zone was provided
      88            0 :   if (tz_ptr)
      89              :     {
      90            0 :       try
      91              :         {
      92            0 :           boost::local_time::local_date_time lt(t.date(), t.time_of_day(), tz_ptr, boost::local_time::local_date_time::EXCEPTION_ON_ERROR);
      93            0 :           TLOG_DEBUG(1) <<  "Build zone\'s time \'" << in << "\' => \'" << lt.to_string() << "\' using \'" << tz_ptr->to_posix_string() << '\'' ;
      94            0 :           t = lt.utc_time();
      95            0 :         }
      96            0 :       catch(std::exception& e)
      97              :         {
      98            0 :           std::ostringstream text;
      99            0 :           text << "cannot parse " << value << " = \'" << in << "\' in time zone \"" << tz_ptr->to_posix_string() << "\": \"" << e.what() << '\"' << std::endl;
     100            0 :           throw std::runtime_error(text.str().c_str());
     101            0 :         }
     102              :     }
     103              : 
     104            0 :   return t;
     105            0 : }
     106              : 
     107              : uint64_t
     108            0 : oks::tz::posix_time_2_to_ns(boost::posix_time::ptime t)
     109              : {
     110            0 :   static boost::posix_time::ptime epoch(boost::gregorian::date(1970,1,1));
     111            0 :   return ((t - epoch).total_nanoseconds());
     112              : }
     113              : 
     114              : std::string
     115            0 : oks::tz::posix_time_2_iso_string(boost::posix_time::ptime t)
     116              : {
     117            0 :   return boost::posix_time::to_iso_string(t);
     118              : }