def to_joda_datetime(value):
"""
Converts any of the supported date types to ``org.joda.time.DateTime``. If
``value`` does not have timezone information, the system default will be
used.
Examples:
.. code-block::
joda_time = to_joda_datetime(items["date_item"])
Args:
value: the value to convert
Returns:
org.joda.time.DateTime: the converted value
Raises:
TypeError: if the type of ``value`` is not suported by this package
"""
if isinstance(value, DateTime):
return value
value_zoneddatetime = to_java_zoneddatetime(value)
return DateTime(
value_zoneddatetime.toInstant().toEpochMilli(),
DateTimeZone.forID(value_zoneddatetime.getZone().getId())
)
def _getSunData(time):
# Constants
K = 0.017453
# Change this reflecting your destination
latitude = 52.347767
longitude = 13.621287
# allways +1 Berlin winter time
local = time.toDateTime(DateTimeZone.forOffsetHours(1))
day = local.getDayOfYear()
hour = local.getHourOfDay() + (local.getMinuteOfHour() / 60.0)
# Source: http://www.jgiesen.de/SME/tk/index.htm
deklination = -23.45 * math.cos(K * 360 * (day + 10) / 365)
zeitgleichung = 60.0 * (-0.171 * math.sin(0.0337 * day + 0.465) -
0.1299 * math.sin(0.01787 * day - 0.168))
stundenwinkel = 15.0 * (hour - (15.0 - longitude) / 15.0 - 12.0 +
zeitgleichung / 60.0)
x = math.sin(K * latitude) * math.sin(K * deklination) + math.cos(
K * latitude) * math.cos(K * deklination) * math.cos(
K * stundenwinkel)
y = -(math.sin(K * latitude) * x - math.sin(K * deklination)) / (
math.cos(K * latitude) * math.sin(math.acos(x)))
elevation = math.asin(x) / K
isBreak = hour <= 12.0 + (15.0 -
longitude) / 15.0 - zeitgleichung / 60.0
if isBreak: azimut = math.acos(y) / K
else: azimut = 360.0 - math.acos(y) / K
return elevation, azimut
def to_joda_datetime(value):
'''Returns org.joda.time.DateTime type (with system timezone if none specified).
Accepts any date type used by this module'''
if isinstance(value, DateTime):
return value
value_zoneddatetime = to_java_zoneddatetime(value)
return DateTime(value_zoneddatetime.toInstant(),
DateTimeZone.forID(value_zoneddatetime.getZone().getId()))
def to_joda_datetime(value):
"""Converts any known DateTime type to a ``org.joda.time.DateTime`` type.
Args:
value: any known DateTime value.
Returns:
| An ``org.joda.time.DateTime`` representing ``value``.
| If ``value`` does not have timezone information, the system default
will be used.
Raises:
TypeError: type of ``value`` is not recognized by this package.
"""
if isinstance(value, DateTime):
return value
value_zoneddatetime = to_java_zoneddatetime(value)
return DateTime(value_zoneddatetime.toInstant(),
DateTimeZone.forID(value_zoneddatetime.getZone().getId()))
def to_joda_datetime(value):
# type: (t.Any) -> JodaDateTime
"""
Converts any of the supported date types to ``org.joda.time.DateTime``. If
``value`` does not have timezone information, the system default will be
used.
Examples:
.. code-block::
joda_time = to_joda_datetime(items["date_item"])
Args:
value: the value to convert
Returns:
org.joda.time.DateTime: the converted value
None: if ``org.joda.time`` is not available
Raises:
TypeError: if the type of ``value`` is not suported by this package
"""
if JodaDateTime is None:
frame = inspect.stack()[1]
getLogger("date").warn(
"'{func}' ({file}:{line}) called 'to_joda_datetime' but Joda is not available"
.format(file=frame.filename,
line=frame.lineno,
func=frame.function))
del frame
return None
if isinstance(value, JodaDateTime):
return value
value_zoneddatetime = to_java_zoneddatetime(value)
return JodaDateTime(
value_zoneddatetime.toInstant().toEpochMilli(),
JodaDateTimeZone.forTimeZone(
TimeZone.getTimeZone(value_zoneddatetime.getZone())))
import sys
# Ensure jar is in path.
sys.path.append('./joda-time-2.4/joda-time-2.4.jar')
from org.joda.time import DateTime
from org.joda.time import DateTimeZone
from org.joda.time.chrono import CopticChronology
zone = DateTimeZone.forID("America/Los_Angeles")
coptic = CopticChronology.getInstance(zone)
coptic_today = DateTime(coptic)
print coptic_today.getYear()
print coptic_today.getMonthOfYear()
print coptic_today.toGregorianCalendar()