def post(self):
"""
Creating a resource instance
"""
# =1= getting the resource to create from the json
resource_json_serializer = json_serializer.resource_serializer()
_resource = resource_json_serializer.from_json(self.req.body)
# =2= add the created resource to the registry
_user_id = 'user1'
_location = '/' + self.term + '/' + _user_id + '/' + str(_resource.occi_core_id)
location_registry().register_location(_location, _resource)
# =3= execute the backend command by sending the resource object
for _backend in backend_registry().get_backends().values():
_backend.create(_resource)
# =4= return OK with the Location of the created resource
location_result = json.dumps({"location": _location})
self.res.body = location_result
return self.res
def put(self):
"""
Creating a resource instance by providing the path in the name-space hierarchy (To do)
Or
Updating a resource instance (Done)
"""
# =1= get old resources
_old_resource = location_registry().get_object(self.req.path)
# =2= get new resources
resource_json_serializer = json_serializer.resource_serializer()
_resource = resource_json_serializer.from_json(self.req.body)
# =3= unregister old and register new
location_registry().unregister_location(self.req.path)
location_registry().register_location(self.req.path, _resource)
# =4= execute the backend command by sending the resource object
for _backend in backend_registry().get_backends().values():
_backend.update(_old_resource, _resource)
self.res.body = 'Resource ' + self.req.path + ' has been updated'
return self.res
def put(self):
"""
Creating a resource instance by providing the path in the name-space hierarchy (To do)
Or
Updating a resource instance (Done)
"""
# =1= get old resources
_old_resource = location_registry().get_object(self.req.path)
# =2= get new resources
resource_json_serializer = json_serializer.resource_serializer()
_resource = resource_json_serializer.from_json(self.req.body)
# =3= unregister old and register new
location_registry().unregister_location(self.req.path)
location_registry().register_location(self.req.path, _resource)
# =4= execute the backend command by sending the resource object
for _backend in backend_registry().get_backends().values():
_backend.update(_old_resource, _resource)
self.res.body = 'Resource ' + self.req.path + ' has been updated'
return self.res
def post(self):
"""
Creating a resource instance
"""
# =1= getting the resource to create from the json
resource_json_serializer = json_serializer.resource_serializer()
_resource = resource_json_serializer.from_json(self.req.body)
# =2= add the created resource to the registry
_user_id = 'user1'
_location = '/' + self.term + '/' + _user_id + '/' + str(
_resource.occi_core_id)
location_registry().register_location(_location, _resource)
# =3= execute the backend command by sending the resource object
for _backend in backend_registry().get_backends().values():
_backend.create(_resource)
# =4= return OK with the Location of the created resource
location_result = json.dumps({"location": _location})
self.res.body = location_result
return self.res
def run_server(self):
"""
to run the server
"""
print ("\n______________________________________________________________________________________\n"
"The OCNI server is running at: ")
wsgi.server(eventlet.listen((config.OCNI_IP, int(config.OCNI_PORT))), self.app)
print ("\n______________________________________________________________________________________\n"
"Closing correctly 'locations' and 'objects' Databases: ")
location_registry(). close_locations_db()
location_registry().close_objects_db()
def get(self):
"""
Retrieving a resource instance
"""
resource_json_serializer = json_serializer.resource_serializer()
_object = location_registry().get_object(self.req.path)
if _object is not None:
result_json = json.loads(resource_json_serializer.to_json(_object))
result_dump = cStringIO.StringIO()
json.dump(result_json, result_dump, indent=4 * ' ')
self.res.body = result_dump.getvalue()
#for _backend in backend_registry().get_backends().values():
# _backend.read()
else:
#self.res.status = ''
self.res.body = 'No resource with this PATH'
return self.res
def renderer(self, obj):
header = {}
link_value = ''
link_param = ''
if isinstance(obj, Link):
_location_registry = location_registry()
_location_of_obj = _location_registry.get_location(obj)
_source = obj.occi_core_source
_target_location = obj.occi_core_target
_target_object = _location_registry.get_object(_target_location)
logger.debug('the Target location of this link is: ' +
_target_location)
logger.debug('the Target object of this link is: ' +
_target_object.__repr__())
link_value += '<' + _target_location + '>;\nrel="' + _target_object.kind.__repr__(
) + '";\nself="' + _location_of_obj + '";\n'
link_param += 'category="' + obj.kind.__repr__() + '";'
for attribute in obj.kind.attributes:
link_param += '\n' + attribute.name + '="' + obj.__getattribute__(
re.sub('\.', '_', attribute.name)) + '";'
else:
logger.warning("Object bad type: Only a Link can be rendered")
raise ("Object bad type: Only a Link can be rendered")
header[header_link] = link_value + link_param
return header
def renderer(self, obj):
header = {}
link_value = ''
link_param = ''
if isinstance(obj, Link):
_location_registry = location_registry()
_location_of_obj = _location_registry.get_location(obj)
_source = obj.occi_core_source
_target_location = obj.occi_core_target
_target_object = _location_registry.get_object(_target_location)
logger.debug('the Target location of this link is: ' + _target_location)
logger.debug('the Target object of this link is: ' + _target_object.__repr__())
link_value += '<' + _target_location + '>;\nrel="' + _target_object.kind.__repr__() + '";\nself="' + _location_of_obj + '";\n'
link_param += 'category="' + obj.kind.__repr__() + '";'
for attribute in obj.kind.attributes:
link_param += '\n' + attribute.name + '="' + obj.__getattribute__(
re.sub('\.', '_', attribute.name)) + '";'
else:
logger.warning("Object bad type: Only a Link can be rendered")
raise ("Object bad type: Only a Link can be rendered")
header[header_link] = link_value + link_param
return header
def run_server(self):
"""
to run the server
"""
print(
"\n______________________________________________________________________________________\n"
"The OCNI server is running at: ")
wsgi.server(eventlet.listen((config.OCNI_IP, int(config.OCNI_PORT))),
self.app)
print(
"\n______________________________________________________________________________________\n"
"Closing correctly 'locations' and 'objects' Databases: ")
location_registry().close_locations_db()
location_registry().close_objects_db()
def delete(self):
"""
Deleting a resource instance
"""
# =1= get resources
_resource = location_registry().get_object(self.req.path)
# =2= remove resources
location_registry().unregister_location(self.req.path)
# =3= execute the backend command by sending the resource object
for _backend in backend_registry().get_backends().values():
_backend.delete(_resource)
# =4= return OK with the Location of the created resource
self.res.body = 'Resource with this PATH has been removed'
return self.res
def delete(self):
"""
Deleting a resource instance
"""
# =1= get resources
_resource = location_registry().get_object(self.req.path)
# =2= remove resources
location_registry().unregister_location(self.req.path)
# =3= execute the backend command by sending the resource object
for _backend in backend_registry().get_backends().values():
_backend.delete(_resource)
# =4= return OK with the Location of the created resource
self.res.body = 'Resource with this PATH has been removed'
return self.res
def get(self):
"""
Retrieving All resource instances Below a Path
"""
_path = '/' + self.term + '/' + self.user + '/'
res = location_registry().get_locations_under_path(_path)
self.res.body = jsonpickle.encode(res, unpicklable=False)
return self.res
def get(self):
"""
Retrieving All resource instances Below a Path
"""
_path = '/' + self.term + '/' + self.user + '/'
res = location_registry().get_locations_under_path(_path)
self.res.body = jsonpickle.encode(res, unpicklable=False)
return self.res
def renderer(self, obj):
header = {}
category_value = ''
category_param = ''
if isinstance(obj, Kind):
_category = obj
_classe = 'kind'
elif isinstance(obj, Mixin):
_category = obj
_classe = 'mixin'
elif isinstance(obj, Action):
_category = obj.category
_classe = 'action'
else:
logger.warning(
"Object bad type: Only a kind, mixin or an action can be rendered as a category"
)
raise (
"Object bad type: Only a kind, mixin or an action can be rendered as a category"
)
category_value += _category.term + ';\nscheme="' + _category.scheme + '";\nclass="' + _classe + '";\n'
if _category.title != '':
category_param += 'title="' + _category.title + '";\n'
if _category.related.__len__() > 0:
__related_objects = ''
for rel in _category.related:
__related_objects += rel.__repr__() + " "
category_param += 'rel="' + __related_objects + '";\n'
_location_registry = location_registry()
_location = _location_registry.get_location(_category)
category_param += 'location=' + _location + ';\n'
if _classe == 'kind' or _classe == 'mixin':
__attributes = ''
for __attribute in _category.attributes:
__attributes += __attribute.name + ' '
category_param += 'attributes="' + __attributes + '";\n'
if _classe == 'kind' or _classe == 'mixin':
__actions = ''
for __action in _category.actions:
__actions += __action.__repr__() + ' '
category_param += 'actions="' + __actions + '";'
header[header_category] = category_value + category_param
return header
def to_json(self, obj):
"""
method to convert an object (OCCI object) to a JSON format
"""
if isinstance(obj, Kind):
_category = obj
_classe = 'kind'
elif isinstance(obj, Mixin):
_category = obj
_classe = 'mixin'
elif isinstance(obj, Action):
_category = obj.category
_classe = 'action'
else:
logger.warning("Object bad type: Only a kind, mixin or an action can be rendered as a category")
raise ("Object bad type: Only a kind, mixin or an action can be rendered as a category")
category_dict = {'term': _category.term, 'scheme': _category.scheme, 'class': _classe, 'title': _category.title}
self.category_rel_dict = OrderedDict({'rel': []})
if _category.related.__len__() > 0:
category_rel_values = list()
for rel in _category.related:
category_rel_values.append(rel.__repr__())
self.category_rel_dict = {'rel': category_rel_values}
self._location_registry = location_registry()
_location = self._location_registry.get_location(_category)
self.category_location_dict = OrderedDict({'location': _location})
self.category_attributes_dict = OrderedDict({'attributes': []})
if _classe == 'kind' or _classe == 'mixin':
category_attributes_values = list()
for __attribute in _category.attributes:
category_attributes_values.append(__attribute.name)
self.category_attributes_dict = {'attributes': category_attributes_values}
self.category_actions_dict = OrderedDict({'actions': []})
if _classe == 'kind' or _classe == 'mixin':
category_actions_values = list()
for __action in _category.actions:
category_actions_values.append(__action.__repr__())
self.category_actions_dict = {'actions': category_actions_values}
result_json = OrderedDict(
category_dict.items() + self.category_rel_dict.items() + self.category_location_dict.items() + self.category_attributes_dict.items() + self.category_actions_dict.items())
result_dump = cStringIO.StringIO()
json.dump(result_json, result_dump, indent=4 * ' ')
logger.debug('category_serializer_to_json-serialization=' + result_dump.getvalue())
return result_dump.getvalue()
def renderer(self, obj):
header = {}
category_value = ''
category_param = ''
if isinstance(obj, Kind):
_category = obj
_classe = 'kind'
elif isinstance(obj, Mixin):
_category = obj
_classe = 'mixin'
elif isinstance(obj, Action):
_category = obj.category
_classe = 'action'
else:
logger.warning("Object bad type: Only a kind, mixin or an action can be rendered as a category")
raise ("Object bad type: Only a kind, mixin or an action can be rendered as a category")
category_value += _category.term + ';\nscheme="' + _category.scheme + '";\nclass="' + _classe + '";\n'
if _category.title != '':
category_param += 'title="' + _category.title + '";\n'
if _category.related.__len__() > 0:
__related_objects = ''
for rel in _category.related:
__related_objects += rel.__repr__() + " "
category_param += 'rel="' + __related_objects + '";\n'
_location_registry = location_registry()
_location = _location_registry.get_location(_category)
category_param += 'location=' + _location + ';\n'
if _classe == 'kind' or _classe == 'mixin':
__attributes = ''
for __attribute in _category.attributes:
__attributes += __attribute.name + ' '
category_param += 'attributes="' + __attributes + '";\n'
if _classe == 'kind' or _classe == 'mixin':
__actions = ''
for __action in _category.actions:
__actions += __action.__repr__() + ' '
category_param += 'actions="' + __actions + '";'
header[header_category] = category_value + category_param
return header
def renderer(self, obj, action):
header = {}
link_value = ''
if isinstance(obj, Resource):
_location_registry = location_registry()
_location_of_obj = _location_registry.get_location(obj)
_location_of_action = _location_of_obj + '?action=' + action.category.term
link_value += '<' + _location_of_action + '>;\nrel="' + action.__repr__() + '"'
else:
logger.warning("Object bad type: Only a Resource can be rendered")
raise ("Object bad type: Only a Resource can be rendered")
header[header_link] = link_value
return header
def renderer(self, obj, action):
header = {}
link_value = ''
if isinstance(obj, Resource):
_location_registry = location_registry()
_location_of_obj = _location_registry.get_location(obj)
_location_of_action = _location_of_obj + '?action=' + action.category.term
link_value += '<' + _location_of_action + '>;\nrel="' + action.__repr__(
) + '"'
else:
logger.warning("Object bad type: Only a Resource can be rendered")
raise ("Object bad type: Only a Resource can be rendered")
header[header_link] = link_value
return header
def get(self):
"""
Retrieving a resource instance
"""
resource_json_serializer = json_serializer.resource_serializer()
_object = location_registry().get_object(self.req.path)
if _object is not None:
result_json = json.loads(resource_json_serializer.to_json(_object))
result_dump = cStringIO.StringIO()
json.dump(result_json, result_dump, indent=4 * ' ')
self.res.body = result_dump.getvalue()
else:
#self.res.status = ''
self.res.body = 'No resource with this PATH'
return self.res
def to_json(self, obj):
"""
method to convert an object (OCCI object) to a JSON format
"""
self.entity_dict = OrderedDict({'occi.core.id': obj.occi_core_id, 'occi.core.title': obj.occi_core_title})
self.kind_dict = OrderedDict(
{'kind': {'term': obj.kind.term, 'scheme': obj.kind.scheme, 'class': 'kind', 'title': obj.kind.title}})
self.mixins_dict = OrderedDict({'mixins': []})
mixins_values = list()
for __mixin in obj.mixins:
mixins_values.append(
{'term': __mixin.term, 'scheme': __mixin.scheme, 'class': 'mixin', 'title': __mixin.title})
self.mixins_dict = {'mixins': mixins_values}
self.attributes_dict = OrderedDict({'attributes': ''})
attributes_values = OrderedDict()
# to extract attributes defined directly by the Kind
for __attribute in obj.kind.attributes:
_a = obj.__getattribute__(re.sub('\.', '_', __attribute.name))
_b = jsonpickle.encode(_a, unpicklable=False)
attributes_values[str(__attribute.name)] = jsonpickle.decode(_b)
# to extract attributes defined by the related Kinds
for __kind_related in obj.kind.related:
# to do (not urgent): attributes of the related kind of the related kind (recursively)
# we use this if because tha main attributes of Resource and Link should be outside of Attributes bloc
if __kind_related.__repr__() != Resource._kind.__repr__() and __kind_related.__repr__() != Link._kind.__repr__():
for __attribute in category_registry().get_kind(str(__kind_related)).attributes:
_a = obj.__getattribute__(re.sub('\.', '_', __attribute.name))
_b = jsonpickle.encode(_a, unpicklable=False)
attributes_values[str(__attribute.name)] = jsonpickle.decode(_b)
# to extract attributes defined by the mixins and related mixins of each mixin
for __mixin in obj.mixins:
for __attribute in __mixin.attributes:
_cc = obj.__getattribute__(re.sub('\.', '_', __attribute.name))
_d = jsonpickle.encode(_cc, unpicklable=False)
attributes_values[str(__attribute.name)] = jsonpickle.decode(_d)
for __mixin_related in __mixin.related:
# to do (not urgent): attributes of the related mixin of the related mixin (recursively)
for __attribute in category_registry().get_kind(str(__mixin_related)).attributes:
_e = obj.__getattribute__(re.sub('\.', '_', __attribute.name))
_f = jsonpickle.encode(_e, unpicklable=False)
attributes_values[str(__attribute.name)] = jsonpickle.decode(_f)
self.attributes_dict = {'attributes': attributes_values}
self.link_dict = OrderedDict(
{'occi.core.source': obj.occi_core_source, 'occi.core.target': obj.occi_core_target})
self.location_dict = OrderedDict({'location': location_registry().get_location(obj)})
result_json = OrderedDict(
self.entity_dict.items() + self.kind_dict.items() + self.mixins_dict.items() + self.attributes_dict.items() + self.link_dict.items() + self.location_dict.items())
result_dump = cStringIO.StringIO()
json.dump(result_json, result_dump, indent=4 * ' ')
logger.debug('link_serialization_to_json=' + result_dump.getvalue())
return result_dump.getvalue()
category_registry().register_kind(Compute._kind)
category_registry().register_kind(Network._kind)
category_registry().register_kind(Storage._kind)
category_registry().register_kind(NetworkInterface._kind)
category_registry().register_kind(StorageLink._kind)
# register OCCI Infrastructure mixins
category_registry().register_mixin(IPNetworking())
category_registry().register_mixin(IPNetworkInterface())
# ======================================================================================
# the location registry
# ======================================================================================
# register OCCI Core kind locations
location_registry().register_location("/resource/", Resource._kind)
location_registry().register_location("/link/", Link._kind)
# register OCCI Infrastructure kind locations
location_registry().register_location("/compute/", Compute._kind)
location_registry().register_location("/network/", Network._kind)
location_registry().register_location("/storage/", Storage._kind)
location_registry().register_location("/networkinterface/", NetworkInterface._kind)
location_registry().register_location("/storagelink/", StorageLink._kind)
# register OCCI Infrastructure mixin locations
location_registry().register_location("/ipnetworking/", IPNetworking())
location_registry().register_location("/ipnetworkinterface/", IPNetworkInterface())
#################### To test category_serializer to_json function #################################################
#ser = category_serializer()
'Gone': 410,
'Unsupported Media Type': 415,
'Internal Server Error': 500,
'Not Implemented': 501,
'Service Unavailable': 503
}
# ======================================================================================
# Reinialization of the locations registry and objects registry (clear ZODB)
# ======================================================================================
result = shell_ask.query_yes_no_quit(
" \n_______________________________________________________________\n"
" Do you want to purge 'locations' and 'objects' Databases (DB reinialization)?",
"no")
if result == 'yes':
location_registry().purge_locations_db()
location_registry().purge_objects_db()
# ======================================================================================
# the category registry
# ======================================================================================
#category_registry = category_registry()
# register OCCI Core kinds
#category_registry().register_kind(Entity._kind)
#category_registry().register_kind(Resource._kind)
#category_registry().register_kind(Link._kind)
# register OCCI Infrastructure kinds
category_registry().register_kind(Compute._kind)
'Unauthorized': 401,
'Forbidden': 403,
'Method Not Allowed': 405,
'Conflict': 409,
'Gone': 410,
'Unsupported Media Type': 415,
'Internal Server Error': 500,
'Not Implemented': 501,
'Service Unavailable': 503}
# ======================================================================================
# Reinialization of the locations registry and objects registry (clear ZODB)
# ======================================================================================
if config.OCNI_PURGE_DB == "1":
location_registry().purge_locations_db()
location_registry().purge_objects_db()
# ======================================================================================
# the category registry
# ======================================================================================
#category_registry = category_registry()
# register OCCI Core kinds
#category_registry().register_kind(Entity._kind)
#category_registry().register_kind(Resource._kind)
#category_registry().register_kind(Link._kind)
# register OCCI Infrastructure kinds
