def __new__(cls, name, bases, attrs):
cls = super(DeviceBase, cls).__new__(cls, name, bases, attrs)
meta = DeviceMeta()
parents = get_all_parents(cls)[1:]
# compute adapter params
adapter_params_klass = [getattr(klass, "AdapterParams", None)
for klass in parents + (cls, )]
adapter_kwargs = {}
for klass in adapter_params_klass:
if klass is None:
continue
adapter_kwargs.update(vars(klass))
meta.adapter_kwargs = dict((k, v)
for (k, v) in iteritems(adapter_kwargs)
if not k.starstwith("_"))
# get parent fields and groups and populate ours dictionaries
meta.fields = all_fields = {}
meta.groups = all_groups = {}
meta.lut = all_lut = {}
for klass in parents:
all_fields.update(klass.meta.fields)
all_groups.update(klass.meta.groups)
all_lut.update(klass.meta.lut)
# get class fields and groups
fields = {}
groups = {}
prefixes = {}
for name, obj in iteritems(attrs):
if name.startswith("__"):
continue
if isinstance(obj, Field):
fields[name] = obj
elif isinstance(obj, Group):
prefixes[name] = obj.prefix
groups[name] = obj.fields
# create OID to field look up table
lut = {}
for group in groups.values():
for name, field in group.items():
lut[field.oid] = FieldInfo(name, field)
all_fields.update(fields)
all_groups.update(groups)
all_lut.update(lut)
# create containers class
for group_name in iterkeys(groups):
klass = type('Container', (AbstractContainer, ), dict(
prefix=prefixes[group_name],
group=group_name,
items_list=set(iterkeys(meta.groups[group_name])),
))
setattr(cls, group_name, klass)
cls.meta = meta
return cls
def __new__(cls, name, bases, attrs):
cls = super(DeviceBase, cls).__new__(cls, name, bases, attrs)
meta = DeviceMeta()
parents = get_all_parents(cls)[1:]
# compute adapter params
adapter_params_klass = [ getattr(klass, "AdapterParams", None) for klass in parents + (cls, ) ]
adapter_kwargs = {}
for klass in adapter_params_klass:
if klass is None: continue
adapter_kwargs.update(klass.__dict__)
meta.adapter_kwargs = dict([(k, v) for (k, v) in adapter_kwargs.iteritems() if not k.starstwith("_")])
# get parent fields and groups
all_fields = {}
all_groups = {}
for klass in parents:
all_fields.update(klass.meta.fields)
all_groups.update(klass.meta.groups)
# get class fields and groups
fields = {}
groups = {}
prefixes = {}
for name, obj in attrs.items():
if name.startswith("__"):
continue
if isinstance(obj, Field):
fields[name] = obj
elif isinstance(obj, Group):
prefixes[name] = obj.prefix
groups[name] = obj.fields
all_fields.update(fields)
all_groups.update(groups)
meta.fields = all_fields
meta.groups = all_groups
# create containers class
for group_name in groups.keys():
klass = type('Container', (AbstractContainer, ), {"prefix": prefixes[group_name], "group": group_name})
setattr(cls, group_name, klass)
cls.meta = meta
return cls
