class PolicyInformationPoint(object):
def __init__(self, node, request):
self.attributes = {
"subject": {
"actor_signer": self._get_actor_signer
},
"action": {
"requires": self._get_requires
},
"environment": {
"current_date": self._get_current_date,
"current_time": self._get_current_time
}
}
self.node = node
self.request = request
self.actorstore = GlobalStore(node=node)
self.actor_desc = None
def get_attribute_value(self, attribute_type, attribute):
"""Return the specified attribute if it exists in attributes dictionary"""
value = self.attributes[attribute_type][attribute]
if hasattr(value, '__call__'):
# The value is a function, call the function.
func_value = value()
# Cache the value (replace function) since same value should be used for future tests when handling this request.
self.attributes[attribute_type][attribute] = func_value
return func_value
return value
def _get_actor_signer(self):
return self.actor_desc["signer"]
def _get_requires(self):
return ["runtime"] + self.actor_desc["requires"]
def _get_current_date(self):
return datetime.now().strftime('%Y-%m-%d')
def _get_current_time(self):
return datetime.now().strftime('%H:%M')
def actor_desc_lookup(self, actorstore_signature, callback):
desc_iter = self.actorstore.global_lookup_iter(
actorstore_signature, node_id=self.request["resource"]["node_id"])
desc_iter.set_cb(self._set_actor_desc, desc_iter, callback)
self._set_actor_desc(desc_iter, callback)
def _set_actor_desc(self, desc_iter, callback):
while True:
try:
desc = desc_iter.next()
except StopIteration:
callback(pip=self)
return
except dynops.PauseIteration:
return
self.actor_desc = desc
class PolicyInformationPoint(object):
def __init__(self, node, request):
self.attributes = {
"subject": {
"actor_signer": self._get_actor_signer
},
"action": {
"requires": self._get_requires
},
"environment": {
"current_date": self._get_current_date,
"current_time": self._get_current_time
}
}
self.node = node
self.request = request
self.actorstore = GlobalStore(node=node)
self.actor_desc = None
def get_attribute_value(self, attribute_type, attribute):
"""Return the specified attribute if it exists in attributes dictionary"""
value = self.attributes[attribute_type][attribute]
if hasattr(value, '__call__'):
# The value is a function, call the function.
func_value = value()
# Cache the value (replace function) since same value should be used for future tests when handling this request.
self.attributes[attribute_type][attribute] = func_value
return func_value
return value
def _get_actor_signer(self):
return self.actor_desc["signer"]
def _get_requires(self):
return ["runtime"] + self.actor_desc["requires"]
def _get_current_date(self):
return datetime.now().strftime('%Y-%m-%d')
def _get_current_time(self):
return datetime.now().strftime('%H:%M')
def actor_desc_lookup(self, actorstore_signature, callback):
desc_iter = self.actorstore.global_lookup_iter(actorstore_signature, node_id=self.request["resource"]["node_id"])
desc_iter.set_cb(self._set_actor_desc, desc_iter, callback)
self._set_actor_desc(desc_iter, callback)
def _set_actor_desc(self, desc_iter, callback):
while True:
try:
desc = desc_iter.next()
except StopIteration:
callback(pip=self)
return
except dynops.PauseIteration:
return
self.actor_desc = desc
def resolve_remote(self, actor_name, info, cb=None):
# FIXME: no list needed since it is only done for one actor
all_desc_iters = dynops.List()
store = GlobalStore(node=self.node)
desc_iter = store.global_lookup_iter(info['signature'], info['args'].keys())
all_desc_iters.append((actor_name, desc_iter), trigger_iter=desc_iter)
all_desc_iters.final()
collect_desc_iter = dynops.Collect(all_desc_iters).set_name("collected_desc")
select_iter = dynops.Map(self.select_actor, collect_desc_iter, done=False,
priority={k:[] for k in self.deployable['actors'].keys()},
eager=True).set_name("select_actor")
select_iter.set_cb(self.deploy_unhandled_actor, select_iter, cb)
self.deploy_unhandled_actor(select_iter, cb)
def resolve_remote(self, deployables):
all_desc_iters = dynops.List()
store = GlobalStore(node=self.node)
for actor_name, info in deployables.iteritems():
desc_iter = store.global_lookup_iter(info['signature'], info['args'].keys())
all_desc_iters.append((actor_name, desc_iter), trigger_iter=desc_iter)
all_desc_iters.final()
collect_desc_iter = dynops.Collect(all_desc_iters).set_name("collected_desc")
select_iter = dynops.Map(self.select_actor, collect_desc_iter, done=False,
priority={k:[] for k in self.deployable['actors'].keys()},
eager=True).set_name("select_actor")
select_iter.set_cb(self.deploy_unhandled_actors, select_iter)
self.deploy_unhandled_actors(select_iter)
def resolve_remote(self, actor_name, info, cb=None):
# FIXME: no list needed since it is only done for one actor
all_desc_iters = dynops.List()
store = GlobalStore(node=self.node)
desc_iter = store.global_lookup_iter(info['signature'],
info['args'].keys())
all_desc_iters.append((actor_name, desc_iter), trigger_iter=desc_iter)
all_desc_iters.final()
collect_desc_iter = dynops.Collect(all_desc_iters).set_name(
"collected_desc")
select_iter = dynops.Map(
self.select_actor,
collect_desc_iter,
done=False,
priority={k: []
for k in self.deployable['actors'].keys()},
eager=True).set_name("select_actor")
select_iter.set_cb(self.deploy_unhandled_actor, select_iter, cb)
self.deploy_unhandled_actor(select_iter, cb)
