def _loadManagerBouncer(self, conf):
if not (conf.bouncer):
self.warning('no bouncer defined, nothing can access the '
'manager')
return defer.succeed(None)
self.debug('going to start manager bouncer %s of type %s',
conf.bouncer.name, conf.bouncer.type)
defs = registry.getRegistry().getComponent(conf.bouncer.type)
entry = defs.getEntryByType('component')
# FIXME: use entry.getModuleName() (doesn't work atm?)
moduleName = defs.getSource()
methodName = entry.getFunction()
bouncer = reflectcall.createComponent(moduleName, methodName,
conf.bouncer.getConfigDict())
d = bouncer.waitForHappy()
def setupCallback(result):
bouncer.debug('started')
self.setBouncer(bouncer)
def setupErrback(failure):
self.warning('Error starting manager bouncer')
d.addCallbacks(setupCallback, setupErrback)
return d
def _createComponent(self, avatarId, type, moduleName, methodName,
nice, conf):
"""
Create a component of the given type.
Log in to the manager with the given avatarId.
@param avatarId: avatarId component will use to log in to manager
@type avatarId: str
@param type: type of component to start
@type type: str
@param moduleName: name of the module that contains the entry point
@type moduleName: str
@param methodName: name of the factory method to create the component
@type methodName: str
@param nice: the nice level to run with
@type nice: int
@param conf: the component configuration
@type conf: dict
"""
self.info('Creating component "%s" of type "%s"', avatarId, type)
self._setNice(nice)
self._enableCoreDumps()
try:
comp = createComponent(moduleName, methodName, conf)
except Exception, e:
msg = "Exception %s during createComponent: %s" % (
e.__class__.__name__, " ".join(e.args))
# traceback.print_exc()
# a ComponentCreateError is already formatted
if isinstance(e, errors.ComponentCreateError):
msg = e.args[0]
self.warning(
"raising ComponentCreateError(%s) and stopping job" % msg)
# This is a Nasty Hack. We raise ComponentCreateError, which can be
# caught on the other side and marshalled as a reasonably
# comprehensible error message. However, if we shutdown
# immediately, the PB connection won't be available, so
# the worker will just get an error about that! So, instead,
# we shut down in a tenth of a second, usually allowing
# the worker to get scheduled and read the exception over PB.
# Ick!
reactor.callLater(0.1, self.shutdown)
raise errors.ComponentCreateError(msg)
def _createComponent(self, avatarId, type, moduleName, methodName, nice,
conf):
"""
Create a component of the given type.
Log in to the manager with the given avatarId.
@param avatarId: avatarId component will use to log in to manager
@type avatarId: str
@param type: type of component to start
@type type: str
@param moduleName: name of the module that contains the entry point
@type moduleName: str
@param methodName: name of the factory method to create the component
@type methodName: str
@param nice: the nice level to run with
@type nice: int
@param conf: the component configuration
@type conf: dict
"""
self.info('Creating component "%s" of type "%s"', avatarId, type)
self._setNice(nice)
self._enableCoreDumps()
try:
comp = createComponent(moduleName, methodName, conf)
except Exception, e:
msg = "Exception %s during createComponent: %s" % (
e.__class__.__name__, " ".join(e.args))
# traceback.print_exc()
# a ComponentCreateError is already formatted
if isinstance(e, errors.ComponentCreateError):
msg = e.args[0]
self.warning("raising ComponentCreateError(%s) and stopping job" %
msg)
# This is a Nasty Hack. We raise ComponentCreateError, which can be
# caught on the other side and marshalled as a reasonably
# comprehensible error message. However, if we shutdown
# immediately, the PB connection won't be available, so
# the worker will just get an error about that! So, instead,
# we shut down in a tenth of a second, usually allowing
# the worker to get scheduled and read the exception over PB.
# Ick!
reactor.callLater(0.1, self.shutdown)
raise errors.ComponentCreateError(msg)
