UTCDate.cc

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#include <sstream>
#include <boost/format.hpp>
#include <utl/AugerException.h>
#include <utl/ErrorLogger.h>
#include <utl/UTCDate.h>

using namespace std;
using namespace utl;
using namespace boost;


const char* const UTCDate::fgMonthNames[] = {
  "JAN", "FEB", "MAR", "APR", "MAY", "JUN",
  "JUL", "AUG", "SEP", "OCT", "NOV", "DEC"
};


void
UTCDate::Set(const int year, const int month, const int day)
{
  if (year < 1980 || (year == 1980 && month == 1 && day < 6)) {
    const char* const err = "Date before GPS epoch";
    ERROR(err);
    throw OutOfBoundException(err);
  }
  if (month < 1 || month > 12) {
    ostringstream err;
    err << "month " << month << " not in range 1-12";
    ERROR(err);
    throw OutOfBoundException(err.str());
  }
  if (day < 1 || day > NumberOfDaysInMonth(year, month)) {
    ostringstream err;
    err << "day " << day << " not in range 1-"
        << NumberOfDaysInMonth(year, month);
    ERROR(err);
    throw OutOfBoundException(err.str());
  }
  fYear = year;
  fMonth = month;
  fDay = day;
}


time_t
UTCDate::GetUnixSecond(const int year, const int month, const int day,
                       const int hour, const int minute, const int second)
{
  tm breakdown = {
    second,    // tm_sec
    minute,    // tm_min
    hour,      // tm_hour
    day,       // tm_mday
    month-1,   // tm_mon
    year-1900, // tm_year
    0,         // tm_wday
    0,         // tm_yday
    0,         // tm_isdst
    0, 0
  };
  const time_t t1 = mktime(&breakdown);
  const time_t dgm = mktime(gmtime(&t1));
  //const time_t dlt = mktime(localtime(&t1));
  //const time_t t2 = mktime(&breakdown);
  return t1 - (dgm - t1);
}


string
UTCDate::GetInAugerFormat()
  const
{
  return
    (format("%|1$02| %2% %|3$4|")
      % fDay
      % fgMonthNames[fMonth - eJan]
      % fYear
    ).str();
}


string
UTCDate::GetInXMLFormatZone(const char* const zone)
  const
{
  return
    (format("%1%-%|2$02|-%|3$02|%4%")
      % GetYear()
      % GetMonth()
      % GetDay()
      % zone
    ).str();
}


istream&
UTCDate::Parse(istream& is, const bool zone)
{
  int year = 0;
  int month = 0;
  int day = 0;
  char minus = '?';
  char minus2 = '?';
  char tz = '?';
  if ((is >> year >> minus >> month >> minus2 >> day) &&
      minus == '-' && minus2 == '-' &&
      (!zone || is.eof() || ((is >> tz) && tz == 'Z'))) {
    Set(year, month, day);
    return is;
  }
  ostringstream err;
  err << "Initializing UTCDate variable failed:"
         " year=" << year << " month=" << month << " day=" << day
      << " minus=" << minus << " minus2=" << minus2 << " tz=" << tz;
  ERROR(err);
  throw OutOfBoundException(err.str());
}