def get(self, channels, start, end, limit=100, interpolation='linear',
scan_archives=True, archive_keys=None, tz=None):
"""
channels : string or list of strings
channel identifiers (not human-friendly names)
start : string or datetime
Strings are interpreted as ISO timestamps.
end : string or datetime
Strings are interpreted as ISO timestamps.
interpolation : string
Higher layers should be handling all the interpolation,
so although this default value matches the ChannelArchiver
default ('linear') that will raise an error here. All
calls must specify interpolation='raw'.
TODO: The other parameters are not yet implemented. They
are merely ignored.
"""
if interpolation != 'raw':
raise NotImplementedError("We should not ask the Archiver "
"to interpolate.")
# If channels is not a list, make it a one-element list.
received_str = isinstance(channels, six.string_types)
if received_str:
channels = [channels]
if isinstance(start, six.string_types):
start = utils.datetime_from_isoformat(start)
if isinstance(end, six.string_types):
end = utils.datetime_from_isoformat(end)
if start.tzinfo is None:
start = utils.localize_datetime(start, utils.local_tz)
if end.tzinfo is None:
end = utils.localize_datetime(end, utils.local_tz)
result = []
for channel in channels:
times, values = _data[channel]
result.append(ChannelData(values=values, times=times))
if received_str:
result = result[0]
return result
def test_datetime_isoformat_with_dst():
iso_str = "2013-02-07 10:21:55.012345"
local_tz = utils.local_tz
utils.local_tz = melbourne_tz
dt = utils.datetime_from_isoformat(iso_str)
utils.local_tz = local_tz
assert dt.utcoffset() == timedelta(0, 39600)
dt_correct = melbourne_tz.localize(datetime(2013, 2, 7, 10, 21, 55, 12345))
assert dt == dt_correct
def test_datetime_isoformat_with_dst():
iso_str = '2013-02-07 10:21:55.012345'
local_tz = utils.local_tz
utils.local_tz = melbourne_tz
dt = utils.datetime_from_isoformat(iso_str)
utils.local_tz = local_tz
assert dt.utcoffset() == timedelta(0, 39600)
dt_correct = melbourne_tz.localize(datetime(2013, 2, 7, 10, 21, 55, 12345))
assert dt == dt_correct
def test_datetime_isoformat_with_dst(self):
iso_str = '2013-02-07 10:21:55.012345'
local_tz = utils.local_tz
utils.local_tz = melbourne_tz
dt = utils.datetime_from_isoformat(iso_str)
utils.local_tz = local_tz
self.assertEqual(dt.utcoffset(), datetime.timedelta(0, 39600))
dt_correct = melbourne_tz.localize(datetime.datetime(2013, 2, 7, 10, 21, 55, 12345))
self.assertEqual(dt, dt_correct)
def test_datetime_isoformat_with_dst(self):
iso_str = '2013-02-07 10:21:55.012345'
local_tz = utils.local_tz
utils.local_tz = melbourne_tz
dt = utils.datetime_from_isoformat(iso_str)
utils.local_tz = local_tz
self.assertEqual(dt.utcoffset(), datetime.timedelta(0, 39600))
dt_correct = melbourne_tz.localize(
datetime.datetime(2013, 2, 7, 10, 21, 55, 12345))
self.assertEqual(dt, dt_correct)
def test_datetime_isoformat_bad_str():
iso_str = "09:00 21/08/2103"
with pytest.raises(ValueError):
utils.datetime_from_isoformat(iso_str)
def test_datetime_isoformat_no_secs_tz(self):
iso_str = '2013-08-07 10:21-09:00'
dt = utils.datetime_from_isoformat(iso_str)
self.assertEqual(
dt, datetime.datetime(2013, 8, 7, 10, 21, 0, 0, utils.UTC(-9)))
def test_datetime_isoformat_no_hrs(self):
iso_str = '2013-08-07'
dt = utils.datetime_from_isoformat(iso_str)
dt_correct = utils.local_tz.localize(
datetime.datetime(2013, 8, 7, 0, 0, 0, 0))
self.assertEqual(dt, dt_correct)
def test_datetime_isoformat_with_short_tz():
iso_str = '2013-08-07 10:21:55.012345+08'
dt = utils.datetime_from_isoformat(iso_str)
assert dt == datetime(2013, 8, 7, 10, 21, 55, 12345, utils.UTC(8))
def test_datetime_isoformat_no_ms():
iso_str = "2013-08-07 10:21:55Z"
dt = utils.datetime_from_isoformat(iso_str)
assert dt == datetime(2013, 8, 7, 10, 21, 55, 0, utils.utc)
def test_datetime_isoformat_with_tz(self):
iso_str = '2013-08-07 10:21:55.012345+08'
dt = utils.datetime_from_isoformat(iso_str)
self.assertEqual(dt, datetime.datetime(2013, 8, 7, 10, 21, 55, 12345, utils.UTC(8)))
def test_datetime_isoformat_with_T():
iso_str = '2013-08-07T10:21:55.012345'
dt = utils.datetime_from_isoformat(iso_str)
dt_correct = utils.local_tz.localize(datetime(2013, 8, 7, 10, 21, 55, 12345))
assert dt == dt_correct
def test_datetime_isoformat_with_T(self):
iso_str = '2013-08-07T10:21:55.012345'
dt = utils.datetime_from_isoformat(iso_str)
dt_correct = utils.local_tz.localize(
datetime.datetime(2013, 8, 7, 10, 21, 55, 12345))
self.assertEqual(dt, dt_correct)
def test_datetime_isoformat_no_secs(self):
iso_str = '2013-08-07 10:21Z'
dt = utils.datetime_from_isoformat(iso_str)
self.assertEqual(
dt, datetime.datetime(2013, 8, 7, 10, 21, 0, 0, utils.utc))
def test_datetime_isoformat_no_hrs():
iso_str = "2013-08-07"
dt = utils.datetime_from_isoformat(iso_str)
dt_correct = utils.local_tz.localize(datetime(2013, 8, 7, 0, 0, 0, 0))
assert dt == dt_correct
def test_datetime_isoformat_no_secs_tz():
iso_str = "2013-08-07 10:21-09:00"
dt = utils.datetime_from_isoformat(iso_str)
assert dt == datetime(2013, 8, 7, 10, 21, 0, 0, utils.UTC(-9))
def test_datetime_isoformat_no_hrs(self):
iso_str = '2013-08-07'
dt = utils.datetime_from_isoformat(iso_str)
dt_correct = utils.local_tz.localize(datetime.datetime(2013, 8, 7, 0, 0, 0, 0))
self.assertEqual(dt, dt_correct)
def test_datetime_isoformat_no_secs_tz(self):
iso_str = '2013-08-07 10:21-09:00'
dt = utils.datetime_from_isoformat(iso_str)
self.assertEqual(dt, datetime.datetime(2013, 8, 7, 10, 21, 0, 0, utils.UTC(-9)))
def test_datetime_isoformat_no_secs(self):
iso_str = '2013-08-07 10:21Z'
dt = utils.datetime_from_isoformat(iso_str)
self.assertEqual(dt, datetime.datetime(2013, 8, 7, 10, 21, 0, 0, utils.utc))
def test_datetime_isoformat_with_tz(self):
iso_str = '2013-08-07 10:21:55.012345+08'
dt = utils.datetime_from_isoformat(iso_str)
self.assertEqual(
dt, datetime.datetime(2013, 8, 7, 10, 21, 55, 12345, utils.UTC(8)))
def test_datetime_isoformat_no_secs_tz():
iso_str = '2013-08-07 10:21-09:00'
dt = utils.datetime_from_isoformat(iso_str)
assert dt == datetime(2013, 8, 7, 10, 21, 0, 0, utils.UTC(-9))
def test_datetime_isoformat_bad_str():
iso_str = '09:00 21/08/2103'
with pytest.raises(ValueError):
utils.datetime_from_isoformat(iso_str)
def test_datetime_isoformat(self):
iso_str = '2013-08-07 10:21:55.012345'
dt = utils.datetime_from_isoformat(iso_str)
dt_correct = utils.local_tz.localize(datetime.datetime(2013, 8, 7, 10, 21, 55, 12345))
self.assertEqual(dt, dt_correct)
def test_datetime_isoformat_no_hrs():
iso_str = '2013-08-07'
dt = utils.datetime_from_isoformat(iso_str)
dt_correct = utils.local_tz.localize(datetime(2013, 8, 7, 0, 0, 0, 0))
assert dt == dt_correct
def test_datetime_isoformat_with_T():
iso_str = "2013-08-07T10:21:55.012345"
dt = utils.datetime_from_isoformat(iso_str)
dt_correct = utils.local_tz.localize(
datetime(2013, 8, 7, 10, 21, 55, 12345))
assert dt == dt_correct
def test_datetime_isoformat_with_Z():
iso_str = "2013-08-07 10:21:55.012345Z"
dt = utils.datetime_from_isoformat(iso_str)
assert dt == datetime(2013, 8, 7, 10, 21, 55, 12345, utils.utc)
def test_datetime_isoformat_with_short_tz():
iso_str = "2013-08-07 10:21:55.012345+08"
dt = utils.datetime_from_isoformat(iso_str)
assert dt == datetime(2013, 8, 7, 10, 21, 55, 12345, utils.UTC(8))
def test_datetime_isoformat_with_Z():
iso_str = '2013-08-07 10:21:55.012345Z'
dt = utils.datetime_from_isoformat(iso_str)
assert dt == datetime(2013, 8, 7, 10, 21, 55, 12345, utils.utc)
def test_datetime_isoformat_no_secs():
iso_str = "2013-08-07 10:21Z"
dt = utils.datetime_from_isoformat(iso_str)
assert dt == datetime(2013, 8, 7, 10, 21, 0, 0, utils.utc)
def test_datetime_isoformat_no_secs():
iso_str = '2013-08-07 10:21Z'
dt = utils.datetime_from_isoformat(iso_str)
assert dt == datetime(2013, 8, 7, 10, 21, 0, 0, utils.utc)
def test_datetime_isoformat_with_tz():
iso_str = "2013-08-07 10:21:55.012345+10:00"
dt = utils.datetime_from_isoformat(iso_str)
assert dt == datetime(2013, 8, 7, 10, 21, 55, 12345, utils.UTC(10))