def get_dates(self, wdmpath, dsn):
"""Gets the start and end date. Returns the start and end dates as d
atetime.datetime instances.
wdmpath -- path to the WDM file
dsn -- the dataset number
"""
if self.verbose:
print('getting start and end dates for dataset %d' % dsn)
wdm_number = self.openfiles[wdmpath]
tdsfrc, llsdat, lledat, retcode = hspf.wtfndtpy(wdm_number, dsn, 1)
if retcode == -6:
print('no data present')
return None, None
# Determine the number of values in the dataset
dataset = DSN(wdm_number, dsn, self.message)
tcode = dataset.get_attribute(17, self.attributes['TCODE '])[0]
tsstep = int(dataset.get_attribute(33, self.attributes['TSSTEP'])[0][0])
if tcode == 2: unit = datetime.timedelta(minutes = tsstep)
if tcode == 3: unit = datetime.timedelta(hours = tsstep)
if tcode == 4: unit = datetime.timedelta(days = tsstep)
n = hspf.timdifpy(llsdat, lledat, tcode, tsstep)
start = datetime.datetime(*llsdat)
end = start + unit * n
return start, end
def get_data(
self,
wdmpath,
dsn,
start=None,
end=None,
):
"""
Gets attributes and data from a DSN in a WDM file.
wdmpath -- path to the WDM file
dsn -- the dataset number
attributes -- a list of the six character code from LIB3.0
start -- the start date and time as Python datetime.datetime class
end -- the end date and time as Python datetime.datetime class
"""
wdm_number = self.openfiles[wdmpath]
if self.verbose: print('getting data from dataset number %d' % dsn)
if hspf.wdckdtpy(wdm_number, dsn) == 0:
if self.verbose:
print('DSN {} in file {} does not exist'.format(dsn, wdmpath))
return None
dataset = DSN(wdm_number, dsn, self.message)
tdsfrc, llsdat, lledat, retcode = hspf.wtfndtpy(wdm_number, dsn, 1)
if retcode == -6:
print('no data present')
return None
if self.verbose: print('reading data from DSN {}'.format(dsn))
if start != None:
llsdat = [
start.year, start.month, start.day, start.hour, start.minute,
start.second
]
if end != None:
lledat = [
end.year, end.month, end.day, end.hour, end.minute, end.second
]
# Determine the number of values in the dataset
tcode = dataset.get_attribute(17, self.attributes['TCODE '])[0]
tsstep = dataset.get_attribute(33, self.attributes['TSSTEP'])[0]
n = hspf.timdifpy(llsdat, lledat, tcode, tsstep)
# Get the data and put it into dictionary
data, retcode = hspf.wdtgetpy(wdm_number, dsn, tsstep, llsdat, n, 0,
30, tcode)
self.retcode_check(retcode, function='wdtget')
return data
def get_data(self,
wdmpath,
dsn,
start = None,
end = None,
):
"""
Gets attributes and data from a DSN in a WDM file.
wdmpath -- path to the WDM file
dsn -- the dataset number
attributes -- a list of the six character code from LIB3.0
start -- the start date and time as Python datetime.datetime class
end -- the end date and time as Python datetime.datetime class
"""
wdm_number = self.openfiles[wdmpath]
if self.verbose: print('getting data from dataset number %d' % dsn)
if hspf.wdckdtpy(wdm_number, dsn) == 0:
if self.verbose:
print('DSN {} in file {} does not exist'.format(dsn, wdmpath))
return None
dataset = DSN(wdm_number, dsn, self.message)
tdsfrc, llsdat, lledat, retcode = hspf.wtfndtpy(wdm_number, dsn, 1)
if retcode == -6:
print('no data present')
return None
if self.verbose: print('reading data from DSN {}'.format(dsn))
if start != None:
llsdat = [start.year, start.month, start.day, start.hour,
start.minute, start.second]
if end != None:
lledat = [end.year, end.month, end.day, end.hour, end.minute,
end.second]
# Determine the number of values in the dataset
tcode = dataset.get_attribute(17, self.attributes['TCODE '])[0]
tsstep = dataset.get_attribute(33, self.attributes['TSSTEP'])[0]
n = hspf.timdifpy(llsdat, lledat, tcode, tsstep)
# Get the data and put it into dictionary
data, retcode = hspf.wdtgetpy(wdm_number, dsn, tsstep, llsdat, n,
0, 30, tcode)
self.retcode_check(retcode, function = 'wdtget')
return data
def get_dates(
self,
wdmpath,
dsn,
):
"""
Gets the start and end date. Returns the start and end dates as d
atetime.datetime instances.
wdmpath -- path to the WDM file
dsn -- the dataset number
"""
if self.verbose:
print('getting start and end dates for dataset {}'.format(dsn))
wdm_number = self.openfiles[wdmpath]
tdsfrc, llsdat, lledat, retcode = hspf.wtfndtpy(wdm_number, dsn, 1)
if retcode == -6:
print('error: no data present')
return None, None
# Determine the number of values in the dataset
dataset = DSN(wdm_number, dsn, self.message)
tcode = dataset.get_attribute(17, self.attributes['TCODE '])[0]
tsstep = int(
dataset.get_attribute(33, self.attributes['TSSTEP'])[0][0])
if tcode == 2: unit = datetime.timedelta(minutes=tsstep)
if tcode == 3: unit = datetime.timedelta(hours=tsstep)
if tcode == 4: unit = datetime.timedelta(days=tsstep)
n = hspf.timdifpy(llsdat, lledat, tcode, tsstep)
# work around for "24th" hour start date
yr, mo, da, hr, mi, se = llsdat
start = (datetime.datetime(yr, mo, da) + datetime.timedelta(
hours=float(hr), minutes=float(mi), seconds=float(se)))
end = start + unit * n
return start, end
def get_dates(self,
wdmpath,
dsn,
):
"""
Gets the start and end date. Returns the start and end dates as d
atetime.datetime instances.
wdmpath -- path to the WDM file
dsn -- the dataset number
"""
if self.verbose:
print('getting start and end dates for dataset {}'.format(dsn))
wdm_number = self.openfiles[wdmpath]
tdsfrc, llsdat, lledat, retcode = hspf.wtfndtpy(wdm_number, dsn, 1)
if retcode == -6:
print('error: no data present')
return None, None
# Determine the number of values in the dataset
dataset = DSN(wdm_number, dsn, self.message)
tcode = dataset.get_attribute(17, self.attributes['TCODE '])[0]
tsstep = int(dataset.get_attribute(33, self.attributes['TSSTEP'])[0][0])
if tcode == 2: unit = datetime.timedelta(minutes = tsstep)
if tcode == 3: unit = datetime.timedelta(hours = tsstep)
if tcode == 4: unit = datetime.timedelta(days = tsstep)
n = hspf.timdifpy(llsdat, lledat, tcode, tsstep)
# work around for "24th" hour start date
yr, mo, da, hr, mi, se = llsdat
start = (datetime.datetime(yr, mo, da) +
datetime.timedelta(hours = float(hr), minutes = float(mi),
seconds = float(se)))
end = start + unit * n
return start, end
def get_dates(self, wdmpath, dsn):
"""Gets the start and end date. Returns the start and end dates as d
atetime.datetime instances.
wdmpath -- path to the WDM file
dsn -- the dataset number
"""
if self.verbose:
print('getting start and end dates for dataset %d' % dsn)
wdm_number = self.openfiles[wdmpath]
tdsfrc, llsdat, lledat, retcode = hspf.wtfndtpy(wdm_number, dsn, 1)
if retcode == -6:
print('no data present')
return None, None
# Determine the number of values in the dataset
dataset = DSN(wdm_number, dsn, self.message)
tcode = dataset.get_attribute(17, self.attributes['TCODE '])[0]
tsstep = int(
dataset.get_attribute(33, self.attributes['TSSTEP'])[0][0])
if tcode == 2: unit = datetime.timedelta(minutes=tsstep)
if tcode == 3: unit = datetime.timedelta(hours=tsstep)
if tcode == 4: unit = datetime.timedelta(days=tsstep)
n = hspf.timdifpy(llsdat, lledat, tcode, tsstep)
start = datetime.datetime(*llsdat)
end = start + unit * n
return start, end