def pg_value(value, fc, **kwargs):
typ = type(value)
data = py_types.get(typ)
if data == None:
raise NotSupportedError("type %r not mapped to pg type" % typ)
# permit the type conversion to be determined by the value, if provided
inspect_func = data.get("inspect")
if value != None and inspect_func != None:
data = inspect_func(value)
# special case: NULL values
if data.get("typeoid") == -1:
return None
if fc == 0:
func = data.get("txt_out")
elif fc == 1:
func = data.get("bin_out")
else:
raise InternalError("unrecognized format code %r" % fc)
if func == None:
raise NotSupportedError("type %r, format code %r not supported" %
(typ, fc))
return func(value, **kwargs)
def pg_type_info(typ):
value = None
if isinstance(typ, dict):
value = typ["value"]
typ = typ["type"]
data = py_types.get(typ)
if data == None:
raise NotSupportedError("type %r not mapped to pg type" % typ)
# permit the type data to be determined by the value, if provided
inspect_func = data.get("inspect")
if value != None and inspect_func != None:
data = inspect_func(value)
type_oid = data.get("typeoid")
if type_oid == None:
raise InternalError("type %r has no type_oid" % typ)
elif type_oid == -1:
# special case: NULL values
return type_oid, 0
# prefer bin, but go with whatever exists
if data.get("bin_out"):
format = 1
elif data.get("txt_out"):
format = 0
else:
raise InternalError("no conversion fuction for type %r" % typ)
return type_oid, format
def py_value(v, description, **kwargs):
if v == None:
# special case - NULL value
return None
type_oid = description['type_oid']
format = description['format']
data = pg_types.get(type_oid)
if data == None:
raise NotSupportedError("type oid %r not supported" % type_oid)
if format == 0:
func = data.get("txt_in")
elif format == 1:
func = data.get("bin_in")
else:
raise NotSupportedError("format code %r not supported" % format)
if func == None:
raise NotSupportedError("data response format %r, type %r not supported" % (format, type_oid))
return func(v, **kwargs)
def get_operating_system(self):
platform = sys.platform
if platform.startswith(u'linux'):
return u"linux"
elif platform.startswith(u'darwin'):
return u"mac"
elif platform.startswith(u'win'):
return u"windows"
else:
raise NotSupportedError(u"Your platform," + sys.platform +
u",isn't supported.")
def get_virtual_memory_address_width(self):
is64Bit = sys.maxsize / 3 > 2**32
if is64Bit:
return 64
else:
if self.operating_system == u"mac":
raise NotSupportedError(
u"Your processor is determined to have a maxSize of" +
sys.maxsize +
u",\n which doesn't correspond with a 64-bit architecture."
)
return 32
def py_type_info(description):
type_oid = description['type_oid']
data = pg_types.get(type_oid)
if data == None:
raise NotSupportedError("type oid %r not mapped to py type" % type_oid)
# prefer bin, but go with whatever exists
if data.get("bin_in"):
format = 1
elif data.get("txt_in"):
format = 0
else:
raise InternalError("no conversion fuction for type oid %r" % type_oid)
return format
def callproc(procname, parameters={}):
raise NotSupportedError()
def rollback(self):
raise NotSupportedError("Rollback is not supported in SimQL")