def add_service(self, svc_class):
name = svc_class.service_name
log("Starting %s" % name)
service = svc_class(self)
self._register_listeners(service)
log("%s started." % name)
service.setServiceParent(self.application)
self._services[name] = service
def add_service(self, svc_cls):
name = svc_cls.service_name
log('Starting ' + name)
service = svc_cls(self)
self._register_listeners(service)
log(name + ' started.')
service.setName(name)
service.setServiceParent(self.application)
def _unregister_listeners(self, service):
'''
Unregisters all event handlers for a service.
'''
signalmatrix = service.get_signal_matrix()
for signal, handler in signalmatrix.items():
try:
self.signals[signal].unregister(handler)
except KeyError:
log("couln't find a '%s' signal to unregister" % signal)
def _register_listeners(self, service):
'''
Registers all event handlers for a service.
'''
signalmatrix = service.get_signal_matrix()
for signal, handler in signalmatrix.items():
try:
#Register the service's handler to the event system's signal
self.signals[signal].register(handler)
except KeyError:
log("couldnt find a '%s' signal for registration" % signal)
def setupDB(self):
# we hide the db so that methods always access it only through
# this method since db objects can be silently reaped when not
# in use. db objects consume 5 file descriptors.
if self.db is None:
self._setupDB()
# self.qp = xapian.QueryParser()
# this is vital: these options specify no language for
# stemming (""), disable stemming (False), and specify an
# empty stop word object (None). we need this because by
# default, xapian's query parser does english stemming
# s = xapian.Stem(self.STEMMING_LANGUAGE)
# self.qp.set_stemmer(s)
# we want query terms to be ANDed together by default
# self.qp.set_default_op(self.DEFAULT_QUERY_COMBINER_OP)
self._configure()
log("Index %s contains %s documents" % (self.names, self.get_doccount()))
def _setupDB(self):
""" really get a xapian database object """
# xapian expects directories! self.name should refer to a
# directory. if it doesn't exist, we'll make one.
if not os.path.exists(self.name):
os.mkdir(self.name)
# try to acquire a lock file
if not self.lockFile.lock():
owningPid = os.readlink(self.lockFile.name)
errorMsg = "cannot acquire lock file for xapian index %s" "because it is owned by process %s" % (
self.name,
owningPid,
)
log(errorMsg)
raise DatabaseLockError(errorMsg)
xapLockFilePath = os.path.join(self.name, XAPIAN_LOCK_FILENAME)
if os.path.exists(xapLockFilePath):
log("Stale database lock found in %s. Deleting it now." % xapLockFilePath)
os.remove(xapLockFilePath)
# actually try to open a xapian DB
try:
try:
self.db = ExceptionTranslater.openIndex(False, self.name, self.flags)
except DatabaseCorruptionError, e:
# the index is trashed, so there's no harm in blowing it
# away and starting from scratch
log("Xapian index at %s is corrupted and will be destroyed" % self.name)
if self.lockFile.locked:
self.lockFile.unlock()
for idxFname in glob.glob(os.path.join(self.name, "*")):
os.remove(idxFname)
self.db = ExceptionTranslater.openIndex(False, self.name, self.flags)
finally:
if self.db is None and self.lockFile.locked:
self.lockFile.unlock()
def close(self):
log("closing xapian index %s" % self.names)
for query in self._searchSessions.keys():
del self._searchSessions[query]
self.qp = None
self.db = None
def left(self, channel):
log('Parted %s' % channel)
def joined(self, channel):
log('Joined %s' % channel)
self.engine.set_channel(channel)
def dccDoChat(self, user, channel, address, port, data):
log('Dcc Chat Request: %s, %s, %s' % (user, address, port))
log('Dcc Chat Request Data: %s' % data)
def dlog(message):
if __debug__:
trace = traceback.extract_stack()[-2]
file, line, name = trace[0], trace[1], trace[2]
log('[%s:%s "%s"] %s' % (file.split("/")[-1], line, name, message))
