-class AddressableMixin(object):
- def __init__(self, guid, factory, testbed_guid, container = None):
- super(AddressableMixin, self).__init__(guid, factory, testbed_guid,
- container)
- self._max_addresses = 1 # TODO: How to make this configurable!
- self._addresses = list()
-
- @property
- def addresses(self):
- return self._addresses
-
- @property
- def max_addresses(self):
- return self._max_addresses
-
-class UserAddressableMixin(AddressableMixin):
- def __init__(self, guid, factory, testbed_guid, container = None):
- super(UserAddressableMixin, self).__init__(guid, factory, testbed_guid,
- container)
-
- def add_address(self):
- if len(self._addresses) == self.max_addresses:
- raise RuntimeError("Maximun number of addresses for this box reached.")
- address = Address()
- self._addresses.append(address)
- return address
-
- def delete_address(self, address):
- self._addresses.remove(address)
- del address
-
- def destroy(self):
- super(UserAddressableMixin, self).destroy()
- for address in list(self.addresses):
- self.delete_address(address)
- self._addresses = None
-
-class RoutableMixin(object):
- def __init__(self, guid, factory, testbed_guid, container = None):
- super(RoutableMixin, self).__init__(guid, factory, testbed_guid,
- container)
- self._routes = list()
-
- @property
- def routes(self):
- return self._routes
-
-class UserRoutableMixin(RoutableMixin):
- def __init__(self, guid, factory, testbed_guid, container = None):
- super(UserRoutableMixin, self).__init__(guid, factory, testbed_guid,
- container)
-
- def add_route(self):
- route = Route()
- self._routes.append(route)
- return route
-
- def delete_route(self, route):
- self._routes.remove(route)
- del route
-
- def destroy(self):
- super(UserRoutableMixin, self).destroy()
- for route in list(self.routes):
- self.delete_route(route)
- self._route = None
-
-def MixIn(MyClass, MixIn):
- # Mixins are installed BEFORE "Box" because
- # Box inherits from non-cooperative classes,
- # so the MRO chain gets broken when it gets
- # to Box.
-
- # Install mixin
- MyClass.__bases__ = (MixIn,) + MyClass.__bases__
-
- # Add properties
- # Somehow it doesn't work automatically
- for name in dir(MixIn):
- prop = getattr(MixIn,name,None)
- if isinstance(prop, property):
- setattr(MyClass, name, prop)
-
- # Update name
- MyClass.__name__ = MyClass.__name__.replace(
- 'Box',
- MixIn.__name__.replace('MixIn','')+'Box',
- 1)
-
-class Factory(AttributesMap):
- _box_class_cache = {}
-
- def __init__(self, factory_id,
- allow_addresses = False, has_addresses = False,
- allow_routes = False, has_routes = False,
- Help = None, category = None):
- super(Factory, self).__init__()
- self._factory_id = factory_id
- self._allow_addresses = bool(allow_addresses)
- self._allow_routes = bool(allow_routes)
- self._has_addresses = bool(allow_addresses) or self._allow_addresses
- self._has_routes = bool(allow_routes) or self._allow_routes
- self._help = help
- self._category = category
- self._connector_types = list()
- self._traces = list()
- self._tags = list()
- self._box_attributes = AttributesMap()
-
- if not self._has_addresses and not self._has_routes:
- self._factory = Box
- else:
- addresses = 'w' if self._allow_addresses else ('r' if self._has_addresses else '-')
- routes = 'w' if self._allow_routes else ('r' if self._has_routes else '-')
- key = addresses+routes
-
- if key in self._box_class_cache:
- self._factory = self._box_class_cache[key]
- else:
- # Create base class
- class _factory(Box):
- def __init__(self, guid, factory, testbed_guid, container = None):
- super(_factory, self).__init__(guid, factory, testbed_guid, container)
-
- # Add mixins, one by one
- if allow_addresses:
- MixIn(_factory, UserAddressableMixin)
- elif has_addresses:
- MixIn(_factory, AddressableMixin)
-
- if allow_routes:
- MixIn(_factory, UserRoutableMixin)
- elif has_routes:
- MixIn(_factory, RoutableMixin)
-
- # Put into cache
- self._box_class_cache[key] = self._factory = _factory
-
- @property
- def factory_id(self):
- return self._factory_id
-
- @property
- def allow_addresses(self):
- return self._allow_addresses
-
- @property
- def allow_routes(self):
- return self._allow_routes
-
- @property
- def has_addresses(self):
- return self._has_addresses
-
- @property
- def has_routes(self):
- return self._has_routes
-
- @property
- def help(self):
- return self._help
-
- @property
- def category(self):
- return self._category
-
- @property
- def connector_types(self):
- return self._connector_types
-
- @property
- def traces(self):
- return self._traces
-
- @property
- def tags(self):
- return self._tags
-
- @property
- def box_attributes(self):
- return self._box_attributes
-
- def add_connector_type(self, connector_type):
- self._connector_types.append(connector_type)
-
- def add_trace(self, trace_id, help, enabled = False):
- trace = Trace(trace_id, help, enabled)
- self._traces.append(trace)
-
- def add_tag(self, tag_id):
- self._tags.append(tag_id)
-
- def add_box_attribute(self, name, help, type, value = None, range = None,
- allowed = None, flags = Attribute.NoFlags, validation_function = None,
- category = None):
- self._box_attributes.add_attribute(name, help, type, value, range,
- allowed, flags, validation_function, category)
-
- def create(self, guid, testbed_description):
- return self._factory(guid, self, testbed_description.guid)
-
- def destroy(self):
- super(Factory, self).destroy()
- self._connector_types = None
-