# -*- coding: utf-8 -*-
"""Value types that can be used in an event filter."""
from dfdatetime import posix_time as dfdatetime_posix_time
[docs]
class DateTimeValueType(dfdatetime_posix_time.PosixTimeInMicroseconds):
"""Value type to represent a date and time value."""
[docs]
def __init__(self, value):
"""Initializes a date and time value type.
Args:
value (int:str): a POSIX timestamp in microseconds or an ISO 8601 date
and time string.
Raises:
ValueError: if the value cannot be copied to a date and time object.
"""
if isinstance(value, int):
timestamp = value
else:
try:
timestamp = int(value, 10)
except (TypeError, ValueError):
timestamp = None
super(DateTimeValueType, self).__init__(timestamp=timestamp)
if timestamp is None:
try:
# Adjust the ISO 8601 date and time string so is resembles a Python
# date and time string.
if value and len(value) > 10 and value[10] == 'T':
value = ' '.join(value.split('T'))
self.CopyFromDateTimeString(value)
except (TypeError, ValueError):
raise ValueError('Unsupported date time string value: {0!s}'.format(
value))