def _validate_and_parse_filters(self, filters):
filters_copy = filters.copy()
phases = filters_copy.pop('phases', None)
after = filters_copy.pop('after', None)
last = filters_copy.pop('last', None)
if filters_copy:
raise UWSError("Unknown filter properties %s", filters_copy.keys())
params = []
if phases:
for phase in phases:
if phase not in models.JobPhases.phases:
raise UWSError("Unknown phase %s in filter", phase)
params.append(("PHASE", phase))
if after:
# TODO: Allow to provide local time and convert here to UTC?
# TODO: We may encounter more troubles with microseconds, if ',' used instead of '.'(e.g. German systems)
try:
date = dateutil.parser.parse(after)
# The day defaults to current day, not to '01', if no day is
# given (e.g. '2010-09'->'2010-09-06').
# Let's tell the user how the given value was interpreted:
if str(date) != str(after):
print "Note: Changed value for keyword 'after' from '%s' to '%s'." % (
after, str(date))
except:
raise UWSError(
"Date time format could not be parsed, expecting UTC in ISO 8601:2004 format or compatible: %s"
% (str(after)))
# Convert from given time (with attached timezone information) to UTC time
if date.utcoffset() is not None:
utz = pytz.timezone('UTC')
date = date.astimezone(utz).replace(tzinfo=None)
print "Note: Date time was converted to UTC time: %s" % (
str(date))
date = date.isoformat()
params.append(("AFTER", date))
if last:
try:
last = int(last)
except:
raise UWSError(
"Value for 'last' argument must be a positive integer: %s"
% (str(last)))
if last < 1:
raise UWSError(
"Value for 'last' argument must be a positive integer: %s"
% (str(last)))
params.append(("LAST", last))
return params
def get_job_list(self, filters=None):
params = None
if filters:
params = self._validate_and_parse_filters(filters)
# print 'params: ', params ## debug
try:
response = self.connection.get('', params)
except Exception as e:
# Do not try to make a second request without parameters here,
# because cannot call self.connection.get() a second time and reusing the connection
# without calling a getresponse() or close() or something beforehand.
# (This would lead to a httplib CannotSendRequest() error!)
# Let's just raise the error immediately.
raise UWSError(str(e))
raw = response.read()
try:
job_list = models.Jobs(raw)
except XMLSyntaxError as e:
raise UWSError(
"Malformatted response. Are you sure the host you specified is a IVOA UWS service?",
raw)
except Exception as e:
raise e
return job_list
def delete_job(self, id):
try:
response = self.connection.delete(id)
except Exception as e:
raise UWSError(str(e))
raw = response.read()
try:
result = True
except XMLSyntaxError as e:
raise UWSError(
"Malformatted response. Are you sure the host you specified is a IVOA UWS service?",
raw)
except Exception as e:
raise e
return result
def abort_job(self, id):
try:
response = self.connection.post(id, {"PHASE": "ABORT"})
except Exception as e:
raise UWSError(str(e))
raw = response.read()
try:
result = models.Job(raw)
except XMLSyntaxError as e:
raise UWSError(
"Malformatted response. Are you sure the host you specified is a IVOA UWS service?",
raw)
except Exception as e:
raise e
return result
def set_parameters_job(self, id, args={}):
try:
response = self.connection.post(id, args)
except Exception as e:
raise UWSError(str(e))
raw = response.read()
try:
result = models.Job(raw)
except XMLSyntaxError as e:
raise UWSError(
"Malformatted response. Are you sure the host you specified is a IVOA UWS service?",
raw)
except Exception as e:
raise e
return result
def get_phase(self, id):
try:
response = self.connection.get(id + '/phase')
except Exception as e:
raise UWSError(str(e))
raw = response.read()
result = raw
return result
def _validate_and_parse_wait(self, wait, phase=None):
# wait must be positive integer or -1
if wait.isdigit() or wait == '-1':
duration = int(wait)
else:
raise UWSError(
"Value for wait-keyword must be positive integer or -1: %s" %
str(wait))
params = [("WAIT", duration)]
if phase:
if phase not in models.JobPhases.active_phases:
raise UWSError(
"Given phase '%s' is not an active phase, 'wait' with this phase is not supported."
% phase)
params.append(("PHASE", phase))
return params
def get_job(self, id, wait=None, phase=None):
params = None
if wait:
params = self._validate_and_parse_wait(wait, phase)
try:
response = self.connection.get(id, params)
except Exception as e:
# Do not make a second request without params, throw error
# immediately
raise UWSError(str(e))
raw = response.read()
try:
result = models.Job(raw)
except XMLSyntaxError as e:
raise UWSError(
"Malformatted response. Are you sure the host you specified is a IVOA UWS service?",
raw)
except Exception as e:
raise e
return result