def get_last_value(self, granule):
stream_resource_id = granule.stream_resource_id
if not self.def_cache.has_key(stream_resource_id):
stream_def = self.ps_cli.find_stream_definition(
stream_id=stream_resource_id, id_only=False)
self.def_cache[stream_resource_id] = stream_def.container
definition = self.def_cache[stream_resource_id]
psp = PointSupplementStreamParser(stream_definition=definition,
stream_granule=granule)
fields = psp.list_field_names()
lu = LastUpdate()
lu.timestamp = granule.identifiables[
granule.data_stream_id].timestamp.value
for field in fields:
range_id = definition.identifiables[field].range_id
lu.variables[field] = Variable()
if definition.identifiables.has_key(field):
lu.variables[field].definition = definition.identifiables[
field].definition
if definition.identifiables.has_key(range_id):
lu.variables[field].units = definition.identifiables[
range_id].unit_of_measure.code
lu.variables[field].value = float(
psp.get_values(field_name=field)[-1])
return lu
def _load_variables(self):
self._variables = []
for vn in self._ds.variables.keys():
var = self._ds.variables[vn]
newvar = Variable()
newvar.index_key = vn
newvar.name = vn
newvar.attributes = []
for ak in var.ncattrs():
att = var.getncattr(ak)
if ak == "units":
newvar.units = att
attr = Attribute()
attr.name = ak
attr.value = att
newvar.attributes.append(attr)
self._variables.append(newvar)
def _parse_attribute(self, line='', correct_table_type=False, variables=None, attributes=None):
#strip out leading %
new_line = line.replace('%', '')
parsed_line = new_line.partition(':')
if parsed_line[0] == 'TableColumnTypes' and correct_table_type:
cols = parsed_line[2].split(' ')
index = 0
for col in cols:
if not col == '' and not col == '\n':
var = Variable()
var.attributes = []
var.name = col
var.index_key = str(index)
self._variables.append(var)
index += 1
elif not parsed_line[0].startswith('Table'):
if not parsed_line[2] == '':
att = Attribute()
att.name = parsed_line[0]
att.value = parsed_line[2].replace('\n', '')
attributes.append(att)
def _parse_attribute(self, line="", correct_table_type=False, variables=None, attributes=None):
# strip out leading %
new_line = line.replace("%", "")
parsed_line = new_line.partition(":")
if parsed_line[0] == "TableColumnTypes" and correct_table_type:
cols = parsed_line[2].split(" ")
index = 0
for col in cols:
if not col == "" and not col == "\n":
var = Variable()
var.attributes = []
var.name = col
var.index_key = str(index)
self._variables.append(var)
index += 1
elif not parsed_line[0].startswith("Table"):
if not parsed_line[2] == "":
att = Attribute()
att.name = parsed_line[0]
att.value = parsed_line[2].replace("\n", "")
attributes.append(att)
def _parse_attribute(self, line='', correct_table_type=False, variables=None, attributes=None):
#strip out leading %
new_line = line.replace('%', '')
parsed_line = new_line.partition(':')
if parsed_line[0] == 'TableColumnTypes' and correct_table_type:
cols = parsed_line[2].split(' ')
index = 0
for col in cols:
if not col == '' and not col == '\n':
var = Variable()
var.attributes = []
var.name = col
var.index_key = str(index)
self._variables.append(var)
index += 1
elif not parsed_line[0].startswith('Table'):
if not parsed_line[2] == '':
att = Attribute()
att.name = parsed_line[0]
att.value = parsed_line[2].replace('\n', '')
attributes.append(att)
def _load_variables(self):
self._variables = []
for vn in self._ds.variables.keys():
var = self._ds.variables[vn]
newvar = Variable()
newvar.index_key = vn
newvar.name = vn
newvar.attributes = []
for ak in var.ncattrs():
att = var.getncattr(ak)
if ak == 'units':
newvar.units = att
attr = Attribute()
attr.name = ak
attr.value = att
newvar.attributes.append(attr)
self._variables.append(newvar)