def clear(self):
# trigger event before clear
self.eventsManager.fire(EventsManager.E_NETWORK_CLEAR_PRE, self)
# retract all facts
try:
for wme in self.facts:
self.retractFact(wme)
except:
traceback.print_exc()
raise
# destroy the network
for rule in self._rules.keys():
self._rules[rule].delete()
del self._rules[rule]
# close all pending resources
for (name, res) in self._resources.items():
if not self._init_resources.has_key(name) and hasattr(
res, "close"):
res.close()
# and reset the resources map
self._resources = self._init_resources
# renew the root node
self._root = RootNode(self)
# renew agenda and maps
self._agenda = Agenda(self)
self._rules = {}
self._facts = {}
self._factsWmeMap = {}
self._currentWmeId = 0
self._linkedParser = None
self._deffacts = {}
# destoy MM
self._modulesManager = ModulesManager()
self._modulesManager.addMainScope()
try:
# assert the first fact: initial-fact
self.assertFact(
TemplateFact(values={},
templateName="initial-fact",
moduleName="MAIN"))
except:
import myclips
myclips.logger.warning("initial-fact redefinition")
# notify completed clear operation
self.eventsManager.fire(EventsManager.E_NETWORK_CLEAR_POST, self)
# detach all listeners after the CLEAR_POST events
self.eventsManager.unregisterObserver()
# for behavioural consistency, notify root creation
self.eventsManager.fire(EventsManager.E_NODE_ADDED, self._root)
def __init__(self,
eventsManager=None,
modulesManager=None,
resources=None,
settings=None):
'''
Constructor
'''
#self._eventsManager = eventsManager if eventsManager is not None else EventsManager.default
self._eventsManager = eventsManager if eventsManager is not None else EventsManager(
)
# if a custom modules manager is not submitted, a new default one (with MAIN scope) is used
if modulesManager is None:
modulesManager = ModulesManager()
modulesManager.addMainScope()
self._modulesManager = modulesManager
self._root = RootNode(self)
self.eventsManager.fire(EventsManager.E_NODE_ADDED, self._root)
self._agenda = Agenda(self)
self._rules = {}
self._facts = {}
self._factsWmeMap = {}
self._currentWmeId = 0
self._linkedParser = None
self._deffacts = {}
self._settings = settings or Settings()
self._resources = resources or {
"stdin": sys.stdin,
"stdout": sys.stdout
}
self._resources.setdefault("stdout", sys.stdout)
s = self._resources["stdout"]
self._resources.setdefault("stdin", sys.stdin)
self._resources.setdefault("t", s)
self._resources.setdefault("wclips", s)
self._resources.setdefault("wdialog", s)
self._resources.setdefault("wdisplay", s)
self._resources.setdefault("werror", s)
self._resources.setdefault("wwarning", s)
self._resources.setdefault("wtrace", s)
self._init_resources = self._resources
try:
# assert the first fact: initial-fact
self.assertFact(TemplateFact("initial-fact", {}, "MAIN"))
except:
import myclips
myclips.logger.warning("initial-fact redefinition")
raise
