DateTimeParser.h File Reference

#include "Shared/StringTransform.h"
#include "sqltypes.h"
#include <optional>
#include <ostream>
#include <string_view>

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Classes
class	DateTimeParser
struct	DateTimeParser::DateTime

Functions
template<SQLTypes SQL_TYPE>
std::optional< int64_t >	dateTimeParseOptional (std::string_view, unsigned const dim)
template<>
std::optional< int64_t >	dateTimeParseOptional< kDATE > (std::string_view, unsigned const dim)
template<>
std::optional< int64_t >	dateTimeParseOptional< kTIME > (std::string_view, unsigned const dim)
template<>
std::optional< int64_t >	dateTimeParseOptional< kTIMESTAMP > (std::string_view, unsigned const dim)
template<SQLTypes SQL_TYPE>
int64_t	dateTimeParse (std::string_view const s, unsigned const dim)

Function Documentation

template<SQLTypes SQL_TYPE>

int64_t dateTimeParse	(	std::string_view const	s,
		unsigned const	dim
	)

Definition at line 40 of file DateTimeParser.h.

References cat(), and toString().

                                                                  {
  if (auto const time = dateTimeParseOptional<SQL_TYPE>(s, dim)) {
    return *time;
  } else {
    throw std::runtime_error(cat("Invalid ", toString(SQL_TYPE), " string (", s, ')'));
  }
}

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template<SQLTypes SQL_TYPE>

std::optional<int64_t> dateTimeParseOptional	(	std::string_view	,
		unsigned const	dim
	)

template<>

std::optional<int64_t> dateTimeParseOptional< kDATE >	(	std::string_view	,
		unsigned const	dim
	)

Definition at line 190 of file DateTimeParser.cpp.

References DateTimeParser::Date, DateTimeParser::parse(), run_benchmark_import::parser, DateTimeParser::setFormatType(), DateTimeParser::Timezone, anonymous_namespace{DateTimeParser.cpp}::unixTime(), and DateTimeParser::unparsed().

Referenced by import_export::Detector::detect_sqltype().

                                                                        {
  DateTimeParser parser;
  // Parse date
  parser.setFormatType(DateTimeParser::FormatType::Date);
  std::optional<int64_t> date = parser.parse(str, dim);
  if (!date) {
    return unixTime(str);
  }
  // Parse optional timezone
  std::string_view timezone = parser.unparsed();
  parser.setFormatType(DateTimeParser::FormatType::Timezone);
  std::optional<int64_t> tz = parser.parse(timezone, dim);
  return *date + tz.value_or(0);
}

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template<>

std::optional<int64_t> dateTimeParseOptional< kTIME >	(	std::string_view	,
		unsigned const	dim
	)

Definition at line 135 of file DateTimeParser.cpp.

References DateTimeParser::parse(), run_benchmark_import::parser, DateTimeParser::setFormatType(), DateTimeParser::Time, DateTimeParser::Timezone, and DateTimeParser::unparsed().

Referenced by import_export::Detector::detect_sqltype().

                                                                        {
  if (!str.empty() && str.front() == 'T') {
    str.remove_prefix(1);
  }
  DateTimeParser parser;
  parser.setFormatType(DateTimeParser::FormatType::Time);
  std::optional<int64_t> time = parser.parse(str, dim);
  if (!time) {
    return std::nullopt;
  }
  // Parse optional timezone
  std::string_view timezone = parser.unparsed();
  parser.setFormatType(DateTimeParser::FormatType::Timezone);
  std::optional<int64_t> tz = parser.parse(timezone, dim);
  if (!parser.unparsed().empty()) {
    return std::nullopt;
  }
  return *time + tz.value_or(0);
}

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template<>

std::optional<int64_t> dateTimeParseOptional< kTIMESTAMP >	(	std::string_view	,
		unsigned const	dim
	)

Definition at line 159 of file DateTimeParser.cpp.

References DateTimeParser::Date, DateTimeParser::parse(), run_benchmark_import::parser, DateTimeParser::setFormatType(), DateTimeParser::Time, DateTimeParser::Timezone, anonymous_namespace{DateTimeParser.cpp}::unixTime(), and DateTimeParser::unparsed().

Referenced by import_export::Detector::detect_sqltype().

                                                                             {
  if (!str.empty() && str.front() == 'T') {
    str.remove_prefix(1);
  }
  DateTimeParser parser;
  // Parse date
  parser.setFormatType(DateTimeParser::FormatType::Date);
  std::optional<int64_t> date = parser.parse(str, dim);
  if (!date) {
    return unixTime(str);
  }
  // Parse time-of-day
  std::string_view time_of_day = parser.unparsed();
  if (time_of_day.empty()) {
    return std::nullopt;
  } else if (time_of_day.front() == 'T' || time_of_day.front() == ':') {
    time_of_day.remove_prefix(1);
  }
  parser.setFormatType(DateTimeParser::FormatType::Time);
  std::optional<int64_t> time = parser.parse(time_of_day, dim);
  // Parse optional timezone
  std::string_view timezone = parser.unparsed();
  parser.setFormatType(DateTimeParser::FormatType::Timezone);
  std::optional<int64_t> tz = parser.parse(timezone, dim);
  return *date + time.value_or(0) + tz.value_or(0);
}

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