def spawn(self, supProc=None):
"""
Spawns this process description with the initialized attributes.
@param supProc the process instance that should be set as supervisor
"""
assert self.procState == 'DEFINED', "Cannot spawn process twice"
self.supProcess = supProc
if self.procNode == None:
logging.info('Spawning name=%s node=%s' % (self.procName, self.procNode))
# Importing service module
proc_mod = pu.get_module(self.procModule)
self.procModObj = proc_mod
# Spawn instance of a process
# During spawn, the supervisor process id, system name and proc name
# get provided as spawn args, in addition to any give spawn args.
spawnargs = {'proc-name':self.procName,
'sup-id':self.supProcess.receiver.spawned.id.full,
'sys-name':self.supProcess.sysName}
if self.spawnArgs:
spawnargs.update(self.spawnArgs)
#logging.debug("spawn(%s, args=%s)" % (self.procModule, spawnargs))
proc_id = yield spawn(proc_mod, None, spawnargs)
self.procId = proc_id
self.procState = 'SPAWNED'
#logging.info("Process "+self.procClass+" ID: "+str(proc_id))
else:
logging.error('Cannot spawn '+self.procClass+' on node='+str(self.procNode))
defer.returnValue(self.procId)
def build(self, spawnArgs={}):
"""Factory method return a new receiver for a new process. At the same
time instantiate class.
"""
logging.info("ProcessProtocolFactory.build() with args="+str(spawnArgs))
svcmodule = spawnArgs.get('svcmodule',None)
if not svcmodule:
logging.error("No spawn argument svcmodule given. Cannot spawn")
return None
svcclass = spawnArgs.get('svcclass',None)
svc_mod = pu.get_module(svcmodule)
if hasattr(svc_mod,'factory'):
logging.info("Found module factory. Using factory to get service receiver")
return svc_mod.factory.build()
elif hasattr(svc_mod,'receiver'):
logging.info("Found module receiver")
return svc_mod.receiver
elif svcclass:
logging.info("Service process module instantiate from class:"+svcclass)
return self.create_process_instance(svc_mod,'name')
else:
logging.error("Service process module cannot be spawned")
def build(self, spawnArgs={}):
"""Factory method return a new receiver for a new process. At the same
time instantiate class.
"""
logging.info("ProcessProtocolFactory.build() with args="+str(spawnArgs))
svcmodule = spawnArgs.get('svcmodule',None)
if not svcmodule:
logging.error("No spawn argument svcmodule given. Cannot spawn")
return None
svcclass = spawnArgs.get('svcclass',None)
svc_mod = pu.get_module(svcmodule)
if hasattr(svc_mod,'factory'):
logging.info("Found module factory. Using factory to get service receiver")
return svc_mod.factory.build()
elif hasattr(svc_mod,'receiver'):
logging.info("Found module receiver")
return svc_mod.receiver
elif svcclass:
logging.info("Service process module instantiate from class:"+svcclass)
return self.create_process_instance(svc_mod,'name')
else:
logging.error("Service process module cannot be spawned")
def _load_package(self, pack, recurse=False):
#logging.info('Loading Package %s' % (pack))
try:
packo = pu.get_module(pack)
ppath = packo.__path__
for path1 in ppath:
dirList = os.listdir(path1)
for fname in dirList:
if fname.endswith('.py') and fname != '__init__.py':
self._load_module(pack + '.' + fname[:len(fname) - 3])
elif os.path.isdir(os.path.join(path1, fname)) and recurse:
self._load_package(pack + '.' + fname)
except Exception, ie:
logging.error("Error importing package: " + str(pack))
def _load_package(self, pack, recurse=False):
#logging.info('Loading Package %s' % (pack))
try:
packo = pu.get_module(pack)
ppath = packo.__path__
for path1 in ppath:
dirList=os.listdir(path1)
for fname in dirList:
if fname.endswith('.py') and fname != '__init__.py':
self._load_module(pack+'.'+fname[:len(fname)-3])
elif os.path.isdir(os.path.join(path1,fname)) and recurse:
self._load_package(pack+'.'+fname)
except Exception, ie:
logging.error("Error importing package: "+str(pack))
from carrot.backends.base import BaseMessage
from ion.core import ioninit
import ion.util.procutils as pu
# Configuration
CONF = ioninit.config(__name__)
master_off = CONF.getValue('master_off', False)
msg_sign = CONF.getValue('msg_sign', True)
encrypt = CONF.getValue('encrypt', False)
encrypt_mod = CONF.getValue('encrypt_mod', None)
encrypt_key = CONF.getValue('encrypt_key', None)
encrypt_pad = CONF.getValue('encrypt_pad', 16)
if encrypt:
try:
mod = pu.get_module(encrypt_mod)
encrypter = mod.new(encrypt_key)
except ImportError:
encrypter = None
else:
encrypter = None
class IdmInterceptor(Interceptor):
"""Message interceptor for identity management and security purposes.
Called last before message hits the wire, and first after message received.
"""
@classmethod
def transform(cls, msg):
"""Identity management transform
"""
if master_off: return msg
def _load_module(self, mod):
#logging.info('Loading Module %s' % (mod))
try:
modo = pu.get_module(mod)
except Exception, ie:
logging.error("Error importing module: " + str(mod))
from carrot.backends.base import BaseMessage
from ion.core import ioninit
import ion.util.procutils as pu
# Configuration
CONF = ioninit.config(__name__)
master_off = CONF.getValue('master_off', False)
msg_sign = CONF.getValue('msg_sign', True)
encrypt = CONF.getValue('encrypt', False)
encrypt_mod = CONF.getValue('encrypt_mod', None)
encrypt_key = CONF.getValue('encrypt_key', None)
encrypt_pad = CONF.getValue('encrypt_pad', 16)
if encrypt:
try:
mod = pu.get_module(encrypt_mod)
encrypter = mod.new(encrypt_key)
except ImportError:
encrypter = None
else:
encrypter = None
class IdmInterceptor(Interceptor):
"""Message interceptor for identity management and security purposes.
Called last before message hits the wire, and first after message received.
"""
@classmethod
def transform(cls, msg):
"""Identity management transform
"""
def _load_module(self, mod):
#logging.info('Loading Module %s' % (mod))
try:
modo = pu.get_module(mod)
except Exception, ie:
logging.error("Error importing module: "+str(mod))
