def __init__(self, object_id, dispatcher):
RemoteObject.__init__(self, object_id, dispatcher)
self.component_classes = {}
self.components = {}
self.dispatcher = dispatcher
self.__parser = RequestParser()
self.__add_rules()
self._object_property.set_state(ObjectProperty.State.RUNNING)
def __init__(self, object_id, dispatcher):
RemoteObject.__init__(self, object_id, dispatcher)
self.remote_object_classes = {}
self.remote_objects = {}
self.dispatcher = dispatcher
self._parser = RequestParser()
self._add_rules()
self._object_property.set_property(
RemoteObjectManager.REMOTE_OBJECT_TYPES, "")
def __init__(self, object_id, dispatcher):
RemoteObject.__init__(self, object_id, dispatcher)
self.component_classes = {}
self.components = {}
self.dispatcher = dispatcher
self.__parser = RequestParser()
self.__add_rules()
self._object_property.set_state(ObjectProperty.State.RUNNING)
def __init__(self, object_id, dispatcher):
RemoteObject.__init__(self, object_id, dispatcher)
self.remote_object_classes = {}
self.remote_objects = {}
self.dispatcher = dispatcher
self._parser = RequestParser()
self._add_rules()
self._object_property.set_property(RemoteObjectManager.REMOTE_OBJECT_TYPES, "")
def __init__(self, arg1, arg2, arg3=None):
if arg3 is None:
object_id = arg1
dispatcher = arg2
else:
object_id = arg1
baseUrl = arg2
dispatcher = arg3
self._object_property = ObjectProperty(self.__class__.__name__,
object_id)
self._object_property.set_state(ObjectProperty.State.INITIALIZING)
self.__set_description()
self.__set_connection_types()
self._object_settings = {}
self.dispatcher = dispatcher
if self.dispatcher is None:
return
self.dispatcher.add_local_object(self)
self._event_subscription = EventSubscription(object_id)
self.__parser = RequestParser()
self.__add_rules()
def __init__(self, arg1, arg2, arg3=None):
if arg3 is None:
object_id = arg1
dispatcher = arg2
else:
object_id = arg1
baseUrl = arg2
dispatcher = arg3
self._object_property = ObjectProperty(self.__class__.__name__,
object_id)
self._object_property.set_state(ObjectProperty.State.INITIALIZING)
self.__set_description()
self.__set_connection_types()
self._object_settings = {}
self.dispatcher = dispatcher
if self.dispatcher is None:
return
self.dispatcher.add_local_object(self)
self._event_subscription = EventSubscription(object_id)
self.__parser = RequestParser()
self.__add_rules()
def setUp(self):
self.call_func0 = 0
self.call_func1 = 0
self.func1_body = None
self.target = RequestParser()
class TestRequestParser(unittest.TestCase):
def dummyFunc0(self):
self.call_func0 += 1
return Response(101, None)
def dummyFunc1(self, body, *mached):
self.call_func1 += 1
self.func1_body = body
return Response(102, None)
def setUp(self):
self.call_func0 = 0
self.call_func1 = 0
self.func1_body = None
self.target = RequestParser()
def tearDown(self):
pass
def test_constructor(self):
self.assertEqual(self.target._RequestParser__rules, [])
def test_add_rule(self):
self.target.add_rule([{
"pattern": "(param1)",
"method": "GET",
"func": self.dummyFunc0,
"params": 0
}])
self.target.add_rule([{
"pattern": "(param2)",
"method": "PUT",
"func": self.dummyFunc1,
"params": 1
}])
self.assertEqual(self.target._RequestParser__rules, [{
"pattern": "(param1)",
"method": "GET",
"func": self.dummyFunc0,
"params": 0
}, {
"pattern": "(param2)",
"method": "PUT",
"func": self.dummyFunc1,
"params": 1
}])
def test_action(self):
self.target.add_rule([{
"pattern": "(param1)",
"method": "GET",
"func": self.dummyFunc0,
"params": 0
}, {
"pattern": "(param2)",
"method": "PUT",
"func": self.dummyFunc1,
"params": 1
}])
request = Request("id1", "GET", "path/to/param1", None)
response = self.target.action(request)
self.assertEqual(self.call_func0, 1)
self.assertEqual(response.status_code, 101)
def test_action_with_param_attribute_params_is_1(self):
self.target.add_rule([{
"pattern": "(param1)",
"method": "GET",
"func": self.dummyFunc0,
"params": 0
}, {
"pattern": "(param2)",
"method": "PUT",
"func": self.dummyFunc1,
"params": 1
}])
request = Request("id1", "PUT", "path/to/param2", "body")
response = self.target.action(request)
self.assertEqual(self.call_func1, 1)
self.assertEqual(self.func1_body, "body")
self.assertEqual(response.status_code, 102)
def test_action_with_param_attribute_params_is_1_and_null_body_request(
self):
self.target.add_rule([{
"pattern": "(param1)",
"method": "GET",
"func": self.dummyFunc0,
"params": 0
}, {
"pattern": "(param2)",
"method": "PUT",
"func": self.dummyFunc1,
"params": 1
}])
request = Request("id1", "PUT", "path/to/param2", None)
response = self.target.action(request)
self.assertEqual(self.call_func1, 1)
self.assertEqual(self.func1_body, "param2")
self.assertEqual(response.status_code, 102)
def test_action_with_param_attribute_params_is_2(self):
self.target.add_rule([{
"pattern": "(param1)",
"method": "GET",
"func": self.dummyFunc0,
"params": 0
}, {
"pattern": "(param2)",
"method": "PUT",
"func": self.dummyFunc1,
"params": 2
}])
request = Request("id1", "PUT", "path/to/param2", "body")
response = self.target.action(request)
self.assertEqual(self.call_func1, 1)
self.assertEqual(self.func1_body, "body")
self.assertEqual(response.status_code, 102)
def test_action_with_param_attribute_params_is_2_and_null_body_request(
self):
self.target.add_rule([{
"pattern": "(param1)",
"method": "GET",
"func": self.dummyFunc0,
"params": 0
}, {
"pattern": "(param2)",
"method": "PUT",
"func": self.dummyFunc1,
"params": 2
}])
request = Request("id1", "PUT", "path/to/param2", None)
response = self.target.action(request)
self.assertEqual(self.call_func1, 1)
self.assertEqual(self.func1_body, "param2")
self.assertEqual(response.status_code, 102)
def test_action_with_pattern_mached_but_method_not_matched(self):
self.target.add_rule([{
"pattern": "(param1)",
"method": "GET",
"func": self.dummyFunc0,
"params": 0
}, {
"pattern": "(param2)",
"method": "PUT",
"func": self.dummyFunc1,
"params": 1
}])
request = Request("id1", "GET", "path/to/param2", "body")
response = self.target.action(request)
self.assertEqual(self.call_func0, 0)
self.assertEqual(self.call_func1, 0)
self.assertEqual(self.func1_body, None)
self.assertEqual(response.status_code, 405)
def test_action_with_pattern_not_matched(self):
self.target.add_rule([{
"pattern": "(param1)",
"method": "GET",
"func": self.dummyFunc0,
"params": 0
}, {
"pattern": "(param2)",
"method": "PUT",
"func": self.dummyFunc1,
"params": 1
}])
request = Request("id1", "GET", "path/to/param3", "body")
response = self.target.action(request)
self.assertEqual(self.call_func0, 0)
self.assertEqual(self.call_func1, 0)
self.assertEqual(self.func1_body, None)
self.assertEqual(response.status_code, 404)
class RemoteObjectManager(RemoteObject):
# FIXME
DESCRIPTION = "python's RemoteObjectManager"
REMOTE_OBJECT_TYPES = "remote_object_types"
def __init__(self, object_id, dispatcher):
RemoteObject.__init__(self, object_id, dispatcher)
self.remote_object_classes = {}
self.remote_objects = {}
self.dispatcher = dispatcher
self._parser = RequestParser()
self._add_rules()
self._object_property.set_property(
RemoteObjectManager.REMOTE_OBJECT_TYPES, "")
def register_remote_objects(self, remote_objects):
for remote_object in remote_objects:
remote_object_name = remote_object.__name__
logging.debug("Register RemoteObject Type:%s", remote_object_name)
self.remote_object_classes[remote_object_name] = remote_object
types = ",".join(self.remote_object_classes.keys())
self._object_property.set_property(
RemoteObjectManager.REMOTE_OBJECT_TYPES, types)
def _add_rules(self):
rules = []
rules.append({
RequestParser.PATTERN: r"^remote_object_types/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_remote_object_types,
RequestParser.PARAMS: 0
})
rules.append({
RequestParser.PATTERN: r"^remote_objects/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_remote_objects,
RequestParser.PARAMS: 0
})
rules.append({
RequestParser.PATTERN: r"^remote_objects/" + "([a-zA-Z0-9_-]+)/?$",
RequestParser.METHOD: Request.Method.PUT,
RequestParser.FUNC: self._do_put_remote_object,
RequestParser.PARAMS: 2
})
rules.append({
RequestParser.PATTERN: r"^remote_objects/" + "([a-zA-Z0-9_-]+)/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_remote_object,
RequestParser.PARAMS: 1
})
rules.append({
RequestParser.PATTERN: r"^remote_objects/" + "([a-zA-Z0-9_-]+)/?$",
RequestParser.METHOD: Request.Method.DELETE,
RequestParser.FUNC: self._do_delete_remote_object,
RequestParser.PARAMS: 1
})
self._parser.add_rule(rules)
def _on_request(self, request):
return self._parser.action(request)
def _do_get_remote_object_types(self):
return Response(Response.StatusCode.OK,
self.remote_object_classes.keys())
def _do_get_remote_objects(self):
body = {}
for object_id in self.remote_objects:
body[object_id] = \
self.remote_objects[object_id].object_property.packed_object()
return Response(Response.StatusCode.OK, body)
def _do_get_remote_object(self, object_id):
if object_id in self.remote_objects:
return Response(Response.StatusCode.OK,
self.remote_objects[object_id].object_property)
return Response(Response.StatusCode.NOT_FOUND, None)
def _do_put_remote_object(self, obj_prop, object_id):
remote_object_type = obj_prop[ObjectProperty.OBJECT_TYPE]
if remote_object_type not in self.remote_object_classes:
return Response(Response.StatusCode.BAD_REQUEST, None)
elif object_id in self.remote_objects:
return Response(Response.StatusCode.CONFLICT, None)
remote_object_class = self.remote_object_classes[remote_object_type]
self.remote_objects[object_id] = remote_object_class(
object_id, self.dispatcher)
if self.remote_objects[object_id].on_initialize(obj_prop):
self.remote_objects[object_id].set_state(
ObjectProperty.State.RUNNING)
else:
self.remote_objects[object_id].set_state(
ObjectProperty.State.ERROR)
logging.debug("Created RemoteObject Type:%s ID:%s", remote_object_type,
object_id)
return Response(Response.StatusCode.CREATED,
self.remote_objects[object_id].object_property)
def _do_delete_remote_object(self, object_id):
if object_id in self.remote_objects:
remote_object = self.remote_objects[object_id]
prev = copy.deepcopy(
remote_object._object_property).packed_object()
remote_object.on_finalize()
del self.remote_objects[object_id]
logging.debug("Deleted RemoteObject ID:%s", object_id)
return Response(Response.StatusCode.OK, None)
class RemoteObject(object):
DESCRIPTION = ""
CONNECTION_TYPES = ""
def __init__(self, arg1, arg2, arg3=None):
if arg3 is None:
object_id = arg1
dispatcher = arg2
else:
object_id = arg1
baseUrl = arg2
dispatcher = arg3
self._object_property = ObjectProperty(self.__class__.__name__,
object_id)
self._object_property.set_state(ObjectProperty.State.INITIALIZING)
self.__set_description()
self.__set_connection_types()
self._object_settings = {}
self.dispatcher = dispatcher
if self.dispatcher is None:
return
self.dispatcher.add_local_object(self)
self._event_subscription = EventSubscription(object_id)
self.__parser = RequestParser()
self.__add_rules()
def on_initialize(self, obj_prop):
return True
def on_finalize(self):
logging.debug("on_finalize ObjectID:" + self.object_id)
self.dispatcher.remove_local_object(self)
@property
def object_id(self):
return self._object_property.object_id
@property
def object_property(self):
return self._object_property
@property
def object_settings(self):
return self._object_settings
@property
def state(self):
return self._object_property.state
def set_state(self, state):
prop = self.object_property
prop.set_state(state)
return self._do_put_property(prop.packed_object())
def __set_description(self):
self._object_property.set_property(ObjectProperty.DESCRIPTION,
self.DESCRIPTION)
def __set_connection_types(self):
self._object_property.set_property(ObjectProperty.CONNECTION_TYPES,
self.CONNECTION_TYPES)
def _request_sync(self, object_id, method, path, body=None):
return self.dispatcher.request_sync(Request(object_id,
method,
path,
body))
def _request(self, object_id, method, path, body=None):
resp = Response(Response.StatusCode.INTERNAL_SERVER_ERROR, None)
try:
resp = self._request_sync(object_id, method, path, body)
except:
logging.error("Exception: Request to " + object_id
+ " Method:" + method
+ " Path:" + path)
logging.error(traceback.format_exc())
return resp
def _publish_event_async(self, event_type, body):
return self.dispatcher.publish_event_async(Event(self.object_id,
event_type,
body))
def _apply_event_subscription(self):
return self.dispatcher.subscribe_event(self._event_subscription)
def __add_rules(self):
rules = []
rules.append({RequestParser.PATTERN: r"^property/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_property,
RequestParser.PARAMS: 0})
rules.append({RequestParser.PATTERN: r"^property/?$",
RequestParser.METHOD: Request.Method.PUT,
RequestParser.FUNC: self._do_put_property,
RequestParser.PARAMS: 1})
rules.append({RequestParser.PATTERN: r"^settings/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_settings,
RequestParser.PARAMS: 0})
rules.append({RequestParser.PATTERN: r"^settings/?$",
RequestParser.METHOD: Request.Method.PUT,
RequestParser.FUNC: self._do_put_settings,
RequestParser.PARAMS: 1})
self.__parser.add_rule(rules)
def dispatch_request(self, request):
try:
resp = self.__parser.action(request)
if resp.status_code == Response.StatusCode.NOT_FOUND:
resp = self._on_request(request)
except:
logging.error("Exception: Receive Request"
+ " Method:" + request.method
+ " Path:" + request.path)
logging.error(traceback.format_exc())
resp = Response(Response.StatusCode.INTERNAL_SERVER_ERROR, None)
return resp
def dispatch_event(self, event):
self._do_post_event(event)
def _do_get_property(self):
logging.debug("Receive GET Property ObjectID:" + self.object_id)
return Response(Response.StatusCode.OK, self._object_property)
def _do_put_property(self, body):
logging.debug("Receive PUT Property ObjectID:" + self.object_id)
# check State Change to Finalizing
for k, v in body.items():
if k == ObjectProperty.OBJECT_STATE:
oldValue = self._object_property.get_property(k)
self.on_state_changed(oldValue, v)
# update Property
if not(self._object_property.equals(body)):
self._object_property.put_property(body)
return Response(Response.StatusCode.OK, self._object_property)
def _do_get_settings(self):
logging.debug("Receive GET Settings ObjectID:" + self.object_id)
return Response(Response.StatusCode.OK, self._object_settings)
def _do_put_settings(self, body):
logging.debug("Receive PUT Settings ObjectID:" + self.object_id)
if body != self._object_settings:
old = copy.deepcopy(self._object_settings)
# delete
for k in old.keys():
if k not in body:
del self._object_settings[k]
# add or update
for k, v in body.items():
self._object_settings[k] = v
self.on_settings_changed(ObjectSettingChanged.Action.UPDATE,
old,
self._object_settings)
return Response(Response.StatusCode.OK, self._object_settings)
def _do_post_event(self, event):
self.on_event(event)
def on_state_changed(self, old_state, new_state):
if old_state != ObjectProperty.State.FINALIZING:
if new_state == ObjectProperty.State.FINALIZING:
self.on_finalize()
def on_settings_changed(self, action, prev, curr):
event_body = {ObjectSettingChanged.ACTION: action,
ObjectSettingChanged.PREV: prev,
ObjectSettingChanged.CURR: curr}
self._publish_event_async(ObjectSettingChanged.TYPE,
event_body)
def _on_request(self, request):
return Response(Response.StatusCode.BAD_REQUEST, None)
def on_event(self, event):
# for example: method_name = "_do_event_topologychanged"
method_name = "_do_event_" + event.event_type.lower()
if hasattr(self, method_name):
method = getattr(self, method_name)
if callable(method):
method(event)
return
return
class ComponentManager(RemoteObject):
# FIXME
DESCRIPTION = "ComponentManager for python"
def __init__(self, object_id, dispatcher):
RemoteObject.__init__(self, object_id, dispatcher)
self.component_classes = {}
self.components = {}
self.dispatcher = dispatcher
self.__parser = RequestParser()
self.__add_rules()
self._object_property.set_state(ObjectProperty.State.RUNNING)
def register_to_system_manager(self):
logging.debug("object_property of ComponentManager %s is %s",
self.object_id,
self._object_property.packed_object())
self.__register_component_managers()
path = "component_managers/%s" % self.object_id
resp = self._request(self.dispatcher.system_manager_id,
Request.Method.PUT,
path,
self._object_property)
if resp.is_error(Request.Method.PUT):
logging.error("Failed registration to SystemManager.")
self._object_property.set_state(ObjectProperty.State.ERROR)
return
self.__register_event_manager()
self.__subscribe_event()
logging.info("Complete registration to SystemManager.")
def __register_component_managers(self):
resp = self._request(self.dispatcher.system_manager_id,
Request.Method.GET,
"component_managers",
None)
if resp.is_error(Request.Method.GET):
logging.error("Failed get component_managers from SystemManager.")
self._object_property.set_state(ObjectProperty.State.ERROR)
return
for component_manager in resp.body:
self.__register_other_component_manager(component_manager)
def __register_other_component_manager(self, component_manager):
object_id = component_manager[ObjectProperty.OBJECT_ID]
if object_id == self.object_id:
return
logging.info("Register Other Component Manager ID:%s", object_id)
self.dispatcher.add_remote_client(object_id)
def __unregister_component_manager(self, object_id):
self.dispatcher.remove_remote_client(object_id)
def __register_event_manager(self):
resp = self._request(self.dispatcher.system_manager_id,
Request.Method.GET,
"objects/%s" % self.dispatcher.event_manager_id,
None)
if resp.is_error(Request.Method.GET):
self._object_property.set_state(ObjectProperty.State.ERROR)
return
self.dispatcher.add_remote_client(self.dispatcher.event_manager_id)
def __subscribe_event(self):
self._event_subscription.add_filter(
self.dispatcher.system_manager_id,
ComponentManagerChanged.TYPE)
self._apply_event_subscription()
def register_component_type(self, component):
component_name = component.__name__
logging.info("Register Component Type:%s", component_name)
self.component_classes[component_name] = component
component_types = \
self._object_property.get_property(ObjectProperty.COMPONENT_TYPES)
if component_types:
component_types += (",%s" % component_name)
else:
component_types = "%s" % component_name
self._object_property.set_property(ObjectProperty.COMPONENT_TYPES,
component_types)
def __add_rules(self):
rules = []
rules.append({RequestParser.PATTERN: r"^component_types/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_component_types,
RequestParser.PARAMS: 0})
rules.append({RequestParser.PATTERN: r"^components/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_components,
RequestParser.PARAMS: 0})
rules.append({RequestParser.PATTERN: r"^components/"
+ "([a-zA-Z0-9_-]+)/?$",
RequestParser.METHOD: Request.Method.PUT,
RequestParser.FUNC: self._do_put_component,
RequestParser.PARAMS: 2})
rules.append({RequestParser.PATTERN: r"^components/"
+ "([a-zA-Z0-9_-]+)/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_component,
RequestParser.PARAMS: 1})
rules.append({RequestParser.PATTERN: r"^components/"
+ "([a-zA-Z0-9_-]+)/?$",
RequestParser.METHOD: Request.Method.DELETE,
RequestParser.FUNC: self._do_delete_component,
RequestParser.PARAMS: 1})
self.__parser.add_rule(rules)
def _on_request(self, request):
return self.__parser.action(request)
def _do_get_component(self, object_id):
if object_id in self.components:
return Response(Response.StatusCode.OK,
self.components[object_id].object_property)
return Response(Response.StatusCode.NOT_FOUND, None)
def _do_put_component(self, obj_prop, object_id):
component_type = obj_prop[ObjectProperty.OBJECT_TYPE]
if component_type not in self.component_classes:
return Response(Response.StatusCode.BAD_REQUEST, None)
elif object_id in self.components:
return Response(Response.StatusCode.CONFLICT, None)
component_class = self.component_classes[component_type]
self.components[object_id] = component_class(object_id,
self.dispatcher)
if self.components[object_id].on_initialize(obj_prop):
self.components[object_id].\
_object_property.set_state(ObjectProperty.State.RUNNING)
else:
self.components[object_id].\
_object_property.set_state(ObjectProperty.State.ERROR)
curr = self.components[object_id].object_property.packed_object()
self._do_component_changed(ComponentChanged.Action.ADD,
None,
curr)
logging.info("Created Component Type:%s ID:%s",
component_type, object_id)
return Response(Response.StatusCode.CREATED,
self.components[object_id].object_property)
def _do_delete_component(self, object_id):
if object_id in self.components:
component = self.components[object_id]
prev = copy.deepcopy(component._object_property).packed_object()
component.on_finalize()
del self.components[object_id]
self._do_component_changed(ComponentChanged.Action.DELETE,
prev,
None)
logging.info("Deleted Component ID:%s", object_id)
return Response(Response.StatusCode.OK, None)
def _do_get_components(self):
body = {}
for object_id in self.components:
body[object_id] = \
self.components[object_id].object_property.packed_object()
return Response(Response.StatusCode.OK, body)
def _do_get_component_types(self):
comp_types = {}
try:
for type_name, clazz in self.component_classes.items():
comp_id = "%s_%s" % (self.object_id, type_name)
component = clazz(comp_id, None)
obj_prop = component.object_property
type = obj_prop.get_property(ObjectProperty.OBJECT_TYPE)
super_type = obj_prop.get_property(ObjectProperty.OBJECT_SUPER_TYPE)
connection_types = {}
connection_types_str = obj_prop.get_property(
ObjectProperty.CONNECTION_TYPES)
conn_type_list = connection_types_str.split(",")
for type_elem in conn_type_list:
type_elem_list = type_elem.split(":")
if len(type_elem_list) == 2:
connection_types[type_elem_list[0]] = type_elem_list[1]
description = obj_prop.get_property(ObjectProperty.DESCRIPTION)
target = ComponentType(type, super_type,
connection_types, description)
comp_types[type_name] = target.packed_object()
except Exception, e:
return Response(Response.StatusCode.INTERNAL_SERVER_ERROR,
str(e))
return Response(Response.StatusCode.OK, comp_types)
class RemoteObjectManager(RemoteObject):
# FIXME
DESCRIPTION = "python's RemoteObjectManager"
REMOTE_OBJECT_TYPES = "remote_object_types"
def __init__(self, object_id, dispatcher):
RemoteObject.__init__(self, object_id, dispatcher)
self.remote_object_classes = {}
self.remote_objects = {}
self.dispatcher = dispatcher
self._parser = RequestParser()
self._add_rules()
self._object_property.set_property(RemoteObjectManager.REMOTE_OBJECT_TYPES, "")
def register_remote_objects(self, remote_objects):
for remote_object in remote_objects:
remote_object_name = remote_object.__name__
logging.debug("Register RemoteObject Type:%s", remote_object_name)
self.remote_object_classes[remote_object_name] = remote_object
types = ",".join(self.remote_object_classes.keys())
self._object_property.set_property(RemoteObjectManager.REMOTE_OBJECT_TYPES, types)
def _add_rules(self):
rules = []
rules.append(
{
RequestParser.PATTERN: r"^remote_object_types/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_remote_object_types,
RequestParser.PARAMS: 0,
}
)
rules.append(
{
RequestParser.PATTERN: r"^remote_objects/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_remote_objects,
RequestParser.PARAMS: 0,
}
)
rules.append(
{
RequestParser.PATTERN: r"^remote_objects/" + "([a-zA-Z0-9_-]+)/?$",
RequestParser.METHOD: Request.Method.PUT,
RequestParser.FUNC: self._do_put_remote_object,
RequestParser.PARAMS: 2,
}
)
rules.append(
{
RequestParser.PATTERN: r"^remote_objects/" + "([a-zA-Z0-9_-]+)/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_remote_object,
RequestParser.PARAMS: 1,
}
)
rules.append(
{
RequestParser.PATTERN: r"^remote_objects/" + "([a-zA-Z0-9_-]+)/?$",
RequestParser.METHOD: Request.Method.DELETE,
RequestParser.FUNC: self._do_delete_remote_object,
RequestParser.PARAMS: 1,
}
)
self._parser.add_rule(rules)
def _on_request(self, request):
return self._parser.action(request)
def _do_get_remote_object_types(self):
return Response(Response.StatusCode.OK, self.remote_object_classes.keys())
def _do_get_remote_objects(self):
body = {}
for object_id in self.remote_objects:
body[object_id] = self.remote_objects[object_id].object_property.packed_object()
return Response(Response.StatusCode.OK, body)
def _do_get_remote_object(self, object_id):
if object_id in self.remote_objects:
return Response(Response.StatusCode.OK, self.remote_objects[object_id].object_property)
return Response(Response.StatusCode.NOT_FOUND, None)
def _do_put_remote_object(self, obj_prop, object_id):
remote_object_type = obj_prop[ObjectProperty.OBJECT_TYPE]
if remote_object_type not in self.remote_object_classes:
return Response(Response.StatusCode.BAD_REQUEST, None)
elif object_id in self.remote_objects:
return Response(Response.StatusCode.CONFLICT, None)
remote_object_class = self.remote_object_classes[remote_object_type]
self.remote_objects[object_id] = remote_object_class(object_id, self.dispatcher)
if self.remote_objects[object_id].on_initialize(obj_prop):
self.remote_objects[object_id].set_state(ObjectProperty.State.RUNNING)
else:
self.remote_objects[object_id].set_state(ObjectProperty.State.ERROR)
logging.debug("Created RemoteObject Type:%s ID:%s", remote_object_type, object_id)
return Response(Response.StatusCode.CREATED, self.remote_objects[object_id].object_property)
def _do_delete_remote_object(self, object_id):
if object_id in self.remote_objects:
remote_object = self.remote_objects[object_id]
prev = copy.deepcopy(remote_object._object_property).packed_object()
remote_object.on_finalize()
del self.remote_objects[object_id]
logging.debug("Deleted RemoteObject ID:%s", object_id)
return Response(Response.StatusCode.OK, None)
class RemoteObject(object):
DESCRIPTION = ""
CONNECTION_TYPES = ""
def __init__(self, arg1, arg2, arg3=None):
if arg3 is None:
object_id = arg1
dispatcher = arg2
else:
object_id = arg1
baseUrl = arg2
dispatcher = arg3
self._object_property = ObjectProperty(self.__class__.__name__,
object_id)
self._object_property.set_state(ObjectProperty.State.INITIALIZING)
self.__set_description()
self.__set_connection_types()
self._object_settings = {}
self.dispatcher = dispatcher
if self.dispatcher is None:
return
self.dispatcher.add_local_object(self)
self._event_subscription = EventSubscription(object_id)
self.__parser = RequestParser()
self.__add_rules()
def on_initialize(self, obj_prop):
return True
def on_finalize(self):
logging.debug("on_finalize ObjectID:" + self.object_id)
self.dispatcher.remove_local_object(self)
@property
def object_id(self):
return self._object_property.object_id
@property
def object_property(self):
return self._object_property
@property
def object_settings(self):
return self._object_settings
@property
def state(self):
return self._object_property.state
def set_state(self, state):
prop = self.object_property
prop.set_state(state)
return self._do_put_property(prop.packed_object())
def __set_description(self):
self._object_property.set_property(ObjectProperty.DESCRIPTION,
self.DESCRIPTION)
def __set_connection_types(self):
self._object_property.set_property(ObjectProperty.CONNECTION_TYPES,
self.CONNECTION_TYPES)
def _request_sync(self, object_id, method, path, body=None):
return self.dispatcher.request_sync(
Request(object_id, method, path, body))
def _request(self, object_id, method, path, body=None):
resp = Response(Response.StatusCode.INTERNAL_SERVER_ERROR, None)
try:
resp = self._request_sync(object_id, method, path, body)
except:
logging.error("Exception: Request to " + object_id + " Method:" +
method + " Path:" + path)
logging.error(traceback.format_exc())
return resp
def _publish_event_async(self, event_type, body):
return self.dispatcher.publish_event_async(
Event(self.object_id, event_type, body))
def _apply_event_subscription(self):
return self.dispatcher.subscribe_event(self._event_subscription)
def __add_rules(self):
rules = []
rules.append({
RequestParser.PATTERN: r"^property/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_property,
RequestParser.PARAMS: 0
})
rules.append({
RequestParser.PATTERN: r"^property/?$",
RequestParser.METHOD: Request.Method.PUT,
RequestParser.FUNC: self._do_put_property,
RequestParser.PARAMS: 1
})
rules.append({
RequestParser.PATTERN: r"^settings/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_settings,
RequestParser.PARAMS: 0
})
rules.append({
RequestParser.PATTERN: r"^settings/?$",
RequestParser.METHOD: Request.Method.PUT,
RequestParser.FUNC: self._do_put_settings,
RequestParser.PARAMS: 1
})
self.__parser.add_rule(rules)
def dispatch_request(self, request):
try:
resp = self.__parser.action(request)
if resp.status_code == Response.StatusCode.NOT_FOUND:
resp = self._on_request(request)
except:
logging.error("Exception: Receive Request" + " Method:" +
request.method + " Path:" + request.path)
logging.error(traceback.format_exc())
resp = Response(Response.StatusCode.INTERNAL_SERVER_ERROR, None)
return resp
def dispatch_event(self, event):
self._do_post_event(event)
def _do_get_property(self):
logging.debug("Receive GET Property ObjectID:" + self.object_id)
return Response(Response.StatusCode.OK, self._object_property)
def _do_put_property(self, body):
logging.debug("Receive PUT Property ObjectID:" + self.object_id)
# check State Change to Finalizing
for k, v in body.items():
if k == ObjectProperty.OBJECT_STATE:
oldValue = self._object_property.get_property(k)
self.on_state_changed(oldValue, v)
# update Property
if not (self._object_property.equals(body)):
self._object_property.put_property(body)
return Response(Response.StatusCode.OK, self._object_property)
def _do_get_settings(self):
logging.debug("Receive GET Settings ObjectID:" + self.object_id)
return Response(Response.StatusCode.OK, self._object_settings)
def _do_put_settings(self, body):
logging.debug("Receive PUT Settings ObjectID:" + self.object_id)
if body != self._object_settings:
old = copy.deepcopy(self._object_settings)
# delete
for k in old.keys():
if k not in body:
del self._object_settings[k]
# add or update
for k, v in body.items():
self._object_settings[k] = v
self.on_settings_changed(ObjectSettingChanged.Action.UPDATE, old,
self._object_settings)
return Response(Response.StatusCode.OK, self._object_settings)
def _do_post_event(self, event):
self.on_event(event)
def on_state_changed(self, old_state, new_state):
if old_state != ObjectProperty.State.FINALIZING:
if new_state == ObjectProperty.State.FINALIZING:
self.on_finalize()
def on_settings_changed(self, action, prev, curr):
event_body = {
ObjectSettingChanged.ACTION: action,
ObjectSettingChanged.PREV: prev,
ObjectSettingChanged.CURR: curr
}
self._publish_event_async(ObjectSettingChanged.TYPE, event_body)
def _on_request(self, request):
return Response(Response.StatusCode.BAD_REQUEST, None)
def on_event(self, event):
# for example: method_name = "_do_event_topologychanged"
method_name = "_do_event_" + event.event_type.lower()
if hasattr(self, method_name):
method = getattr(self, method_name)
if callable(method):
method(event)
return
return
class ComponentManager(RemoteObject):
# FIXME
DESCRIPTION = "ComponentManager for python"
def __init__(self, object_id, dispatcher):
RemoteObject.__init__(self, object_id, dispatcher)
self.component_classes = {}
self.components = {}
self.dispatcher = dispatcher
self.__parser = RequestParser()
self.__add_rules()
self._object_property.set_state(ObjectProperty.State.RUNNING)
def register_to_system_manager(self):
logging.debug("object_property of ComponentManager %s is %s",
self.object_id, self._object_property.packed_object())
self.__register_component_managers()
path = "component_managers/%s" % self.object_id
resp = self._request(self.dispatcher.system_manager_id,
Request.Method.PUT, path, self._object_property)
if resp.is_error(Request.Method.PUT):
logging.error("Failed registration to SystemManager.")
self._object_property.set_state(ObjectProperty.State.ERROR)
return
self.__register_event_manager()
self.__subscribe_event()
logging.info("Complete registration to SystemManager.")
def __register_component_managers(self):
resp = self._request(self.dispatcher.system_manager_id,
Request.Method.GET, "component_managers", None)
if resp.is_error(Request.Method.GET):
logging.error("Failed get component_managers from SystemManager.")
self._object_property.set_state(ObjectProperty.State.ERROR)
return
for component_manager in resp.body:
self.__register_other_component_manager(component_manager)
def __register_other_component_manager(self, component_manager):
object_id = component_manager[ObjectProperty.OBJECT_ID]
if object_id == self.object_id:
return
logging.info("Register Other Component Manager ID:%s", object_id)
self.dispatcher.add_remote_client(object_id)
def __unregister_component_manager(self, object_id):
self.dispatcher.remove_remote_client(object_id)
def __register_event_manager(self):
resp = self._request(self.dispatcher.system_manager_id,
Request.Method.GET,
"objects/%s" % self.dispatcher.event_manager_id,
None)
if resp.is_error(Request.Method.GET):
self._object_property.set_state(ObjectProperty.State.ERROR)
return
self.dispatcher.add_remote_client(self.dispatcher.event_manager_id)
def __subscribe_event(self):
self._event_subscription.add_filter(self.dispatcher.system_manager_id,
ComponentManagerChanged.TYPE)
self._apply_event_subscription()
def register_component_type(self, component):
component_name = component.__name__
logging.info("Register Component Type:%s", component_name)
self.component_classes[component_name] = component
component_types = \
self._object_property.get_property(ObjectProperty.COMPONENT_TYPES)
if component_types:
component_types += (",%s" % component_name)
else:
component_types = "%s" % component_name
self._object_property.set_property(ObjectProperty.COMPONENT_TYPES,
component_types)
def __add_rules(self):
rules = []
rules.append({
RequestParser.PATTERN: r"^component_types/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_component_types,
RequestParser.PARAMS: 0
})
rules.append({
RequestParser.PATTERN: r"^components/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_components,
RequestParser.PARAMS: 0
})
rules.append({
RequestParser.PATTERN: r"^components/" + "([a-zA-Z0-9_-]+)/?$",
RequestParser.METHOD: Request.Method.PUT,
RequestParser.FUNC: self._do_put_component,
RequestParser.PARAMS: 2
})
rules.append({
RequestParser.PATTERN: r"^components/" + "([a-zA-Z0-9_-]+)/?$",
RequestParser.METHOD: Request.Method.GET,
RequestParser.FUNC: self._do_get_component,
RequestParser.PARAMS: 1
})
rules.append({
RequestParser.PATTERN: r"^components/" + "([a-zA-Z0-9_-]+)/?$",
RequestParser.METHOD: Request.Method.DELETE,
RequestParser.FUNC: self._do_delete_component,
RequestParser.PARAMS: 1
})
self.__parser.add_rule(rules)
def _on_request(self, request):
return self.__parser.action(request)
def _do_get_component(self, object_id):
if object_id in self.components:
return Response(Response.StatusCode.OK,
self.components[object_id].object_property)
return Response(Response.StatusCode.NOT_FOUND, None)
def _do_put_component(self, obj_prop, object_id):
component_type = obj_prop[ObjectProperty.OBJECT_TYPE]
if component_type not in self.component_classes:
return Response(Response.StatusCode.BAD_REQUEST, None)
elif object_id in self.components:
return Response(Response.StatusCode.CONFLICT, None)
component_class = self.component_classes[component_type]
self.components[object_id] = component_class(object_id,
self.dispatcher)
if self.components[object_id].on_initialize(obj_prop):
self.components[object_id].\
_object_property.set_state(ObjectProperty.State.RUNNING)
else:
self.components[object_id].\
_object_property.set_state(ObjectProperty.State.ERROR)
curr = self.components[object_id].object_property.packed_object()
self._do_component_changed(ComponentChanged.Action.ADD, None, curr)
logging.info("Created Component Type:%s ID:%s", component_type,
object_id)
return Response(Response.StatusCode.CREATED,
self.components[object_id].object_property)
def _do_delete_component(self, object_id):
if object_id in self.components:
component = self.components[object_id]
prev = copy.deepcopy(component._object_property).packed_object()
component.on_finalize()
del self.components[object_id]
self._do_component_changed(ComponentChanged.Action.DELETE, prev,
None)
logging.info("Deleted Component ID:%s", object_id)
return Response(Response.StatusCode.OK, None)
def _do_get_components(self):
body = {}
for object_id in self.components:
body[object_id] = \
self.components[object_id].object_property.packed_object()
return Response(Response.StatusCode.OK, body)
def _do_get_component_types(self):
comp_types = {}
try:
for type_name, clazz in self.component_classes.items():
comp_id = "%s_%s" % (self.object_id, type_name)
component = clazz(comp_id, None)
obj_prop = component.object_property
type = obj_prop.get_property(ObjectProperty.OBJECT_TYPE)
super_type = obj_prop.get_property(
ObjectProperty.OBJECT_SUPER_TYPE)
connection_types = {}
connection_types_str = obj_prop.get_property(
ObjectProperty.CONNECTION_TYPES)
conn_type_list = connection_types_str.split(",")
for type_elem in conn_type_list:
type_elem_list = type_elem.split(":")
if len(type_elem_list) == 2:
connection_types[type_elem_list[0]] = type_elem_list[1]
description = obj_prop.get_property(ObjectProperty.DESCRIPTION)
target = ComponentType(type, super_type, connection_types,
description)
comp_types[type_name] = target.packed_object()
except Exception, e:
return Response(Response.StatusCode.INTERNAL_SERVER_ERROR, str(e))
return Response(Response.StatusCode.OK, comp_types)
def setUp(self):
self.call_func0 = 0
self.call_func1 = 0
self.func1_body = None
self.target = RequestParser()
class TestRequestParser(unittest.TestCase):
def dummyFunc0(self):
self.call_func0 += 1
return Response(101, None)
def dummyFunc1(self, body, *mached):
self.call_func1 += 1
self.func1_body = body
return Response(102, None)
def setUp(self):
self.call_func0 = 0
self.call_func1 = 0
self.func1_body = None
self.target = RequestParser()
def tearDown(self):
pass
def test_constructor(self):
self.assertEqual(self.target._RequestParser__rules, [])
def test_add_rule(self):
self.target.add_rule([{"pattern": "(param1)", "method": "GET",
"func": self.dummyFunc0, "params": 0}])
self.target.add_rule([{"pattern": "(param2)", "method": "PUT",
"func": self.dummyFunc1, "params": 1}])
self.assertEqual(self.target._RequestParser__rules,
[{"pattern": "(param1)", "method": "GET",
"func": self.dummyFunc0, "params": 0},
{"pattern": "(param2)", "method": "PUT",
"func": self.dummyFunc1, "params": 1}])
def test_action(self):
self.target.add_rule([{"pattern": "(param1)", "method": "GET",
"func": self.dummyFunc0, "params": 0},
{"pattern": "(param2)", "method": "PUT",
"func": self.dummyFunc1, "params": 1}])
request = Request("id1", "GET", "path/to/param1", None)
response = self.target.action(request)
self.assertEqual(self.call_func0, 1)
self.assertEqual(response.status_code, 101)
def test_action_with_param_attribute_params_is_1(self):
self.target.add_rule([{"pattern": "(param1)", "method": "GET",
"func": self.dummyFunc0, "params": 0},
{"pattern": "(param2)", "method": "PUT",
"func": self.dummyFunc1, "params": 1}])
request = Request("id1", "PUT", "path/to/param2", "body")
response = self.target.action(request)
self.assertEqual(self.call_func1, 1)
self.assertEqual(self.func1_body, "body")
self.assertEqual(response.status_code, 102)
def test_action_with_param_attribute_params_is_1_and_null_body_request(self):
self.target.add_rule([{"pattern": "(param1)", "method": "GET",
"func": self.dummyFunc0, "params": 0},
{"pattern": "(param2)", "method": "PUT",
"func": self.dummyFunc1, "params": 1}])
request = Request("id1", "PUT", "path/to/param2", None)
response = self.target.action(request)
self.assertEqual(self.call_func1, 1)
self.assertEqual(self.func1_body, "param2")
self.assertEqual(response.status_code, 102)
def test_action_with_param_attribute_params_is_2(self):
self.target.add_rule([{"pattern": "(param1)", "method": "GET",
"func": self.dummyFunc0, "params": 0},
{"pattern": "(param2)", "method": "PUT",
"func": self.dummyFunc1, "params": 2}])
request = Request("id1", "PUT", "path/to/param2", "body")
response = self.target.action(request)
self.assertEqual(self.call_func1, 1)
self.assertEqual(self.func1_body, "body")
self.assertEqual(response.status_code, 102)
def test_action_with_param_attribute_params_is_2_and_null_body_request(self):
self.target.add_rule([{"pattern": "(param1)", "method": "GET",
"func": self.dummyFunc0, "params": 0},
{"pattern": "(param2)", "method": "PUT",
"func": self.dummyFunc1, "params": 2}])
request = Request("id1", "PUT", "path/to/param2", None)
response = self.target.action(request)
self.assertEqual(self.call_func1, 1)
self.assertEqual(self.func1_body, "param2")
self.assertEqual(response.status_code, 102)
def test_action_with_pattern_mached_but_method_not_matched(self):
self.target.add_rule([{"pattern": "(param1)", "method": "GET",
"func": self.dummyFunc0, "params": 0},
{"pattern": "(param2)", "method": "PUT",
"func": self.dummyFunc1, "params": 1}])
request = Request("id1", "GET", "path/to/param2", "body")
response = self.target.action(request)
self.assertEqual(self.call_func0, 0)
self.assertEqual(self.call_func1, 0)
self.assertEqual(self.func1_body, None)
self.assertEqual(response.status_code, 405)
def test_action_with_pattern_not_matched(self):
self.target.add_rule([{"pattern": "(param1)", "method": "GET",
"func": self.dummyFunc0, "params": 0},
{"pattern": "(param2)", "method": "PUT",
"func": self.dummyFunc1, "params": 1}])
request = Request("id1", "GET", "path/to/param3", "body")
response = self.target.action(request)
self.assertEqual(self.call_func0, 0)
self.assertEqual(self.call_func1, 0)
self.assertEqual(self.func1_body, None)
self.assertEqual(response.status_code, 404)