def init_global_ontology():
'''Should be called ONCE by hubs [texthub, simulate, dialogueserver] (and Tasks when creating) --
Then holds the ontology that is used and accessible system wide. Note that the class FlatOntologyManager(object) is a singleton.
'''
OntologyUtils.initUtils()
global global_ontology
global_ontology = FlatOntologyManager.FlatOntologyManager()
def _set_db(self):
"""Sets self.db to instance of choosen Data base accessing class.
.. note:: It is currently hardcoded to use the sqlite method. But this can be config based - data base classes share interface
so only need to change class here, nothing else in code will need adjusting.
"""
db_fname = OntologyUtils.get_database_path(self.domainString)
logger.info('Loading database: ' + db_fname + 'db')
try:
#self.db = DataBase.DataBase(db_fname+'txt')
dbprefix = None
if Settings.config.has_option("exec_config", "dbprefix"):
dbprefix = Settings.config.get("exec_config", "dbprefix")
if dbprefix.lower() == 'none':
dbprefix = None
if dbprefix:
db_fname = os.path.join(dbprefix, db_fname.split('/')[-1])
self.db = DataBaseSQLite.DataBase_SQLite(dbfile=db_fname + 'db',
dstring=self.domainString)
except IOError:
print IOError
logger.error(
"No such file or directory: " + db_fname +
". Probably <Settings.root> is not set/set wrong by config.")
return
def _set_ontology(self):
"""Just loads json file -- No class for ontology representation at present.
"""
ontology_fname = OntologyUtils.get_ontology_path(self.domainString)
logger.info('Loading ontology: ' + ontology_fname)
try:
self.ontology = json.load(open(ontology_fname))
except IOError:
#print IOError
logger.error(
"No such file or directory: " + ontology_fname +
". Probably <Settings.root> is not set/set wrong by config.")
return
def _config_bootup(self):
'''Boot up all domains given under [GENERAL] in config as domains = A,B,C,D
Settings.config must have first been set.
'''
if not Settings.config.has_option("GENERAL", "domains"):
logger.error(
"You must specify the domains (a domain) under the GENERAL section of the config"
)
domains = Settings.config.get("GENERAL", 'domains')
if domains in ['camtourist', 'sftourist', 'electronics', 'all']:
self.possible_domains = OntologyUtils.get_domains_group(domains)
else:
self.possible_domains = domains.split(',')
# self.possible_domains is used by simulated user --> won't act outside these domains
for dstring in self.possible_domains:
self._checkDomainString(dstring)
self._bootup(dstring)