class TransformerManagerTest(base.BaseTest):
def setUp(self):
super(TransformerManagerTest, self).setUp()
self.cfg_fixture.config(group='datasources',
types=[
NAGIOS_DATASOURCE, NOVA_HOST_DATASOURCE,
NOVA_INSTANCE_DATASOURCE,
NOVA_ZONE_DATASOURCE
])
for datasource in self.conf.datasources.types:
register_opts(datasource, self.conf.datasources.path)
self.manager = TransformerManager()
def test_transformer_registration_nagios(self):
self.assertIsInstance(self.manager.get_transformer(NAGIOS_DATASOURCE),
NagiosTransformer)
def test_transformer_registration_nova_host(self):
self.assertIsInstance(
self.manager.get_transformer(NOVA_HOST_DATASOURCE),
HostTransformer)
def test_transformer_registration_nova_instance(self):
self.assertIsInstance(
self.manager.get_transformer(NOVA_INSTANCE_DATASOURCE),
InstanceTransformer)
def test_transformer_registration_nova_zone(self):
self.assertIsInstance(
self.manager.get_transformer(NOVA_ZONE_DATASOURCE),
ZoneTransformer)
def __init__(self, conf, e_graph=None):
super(Processor, self).__init__()
self.conf = conf
self.transformer_manager = TransformerManager(self.conf)
self.info_mapper = DatasourceInfoMapper(self.conf)
self._initialize_events_actions()
self.entity_graph = e_graph
def setUp(self):
super(TransformerManagerTest, self).setUp()
self.cfg_fixture.config(group='datasources',
types=[
NAGIOS_DATASOURCE, NOVA_HOST_DATASOURCE,
NOVA_INSTANCE_DATASOURCE,
NOVA_ZONE_DATASOURCE
])
for datasource in self.conf.datasources.types:
register_opts(datasource, self.conf.datasources.path)
self.manager = TransformerManager()
def setUpClass(cls):
super(TransformerManagerTest, cls).setUpClass()
cls.conf = cfg.ConfigOpts()
cls.conf.register_opts(cls.OPTS, group='datasources')
for datasource in cls.conf.datasources.types:
register_opts(cls.conf, datasource, cls.conf.datasources.path)
cls.manager = TransformerManager(cls.conf)
class Processor(processor.ProcessorBase):
def __init__(self, e_graph=None):
super(Processor, self).__init__()
self.transformer_manager = TransformerManager()
self.info_mapper = DatasourceInfoMapper()
self._initialize_events_actions()
self.entity_graph = e_graph
def process_event(self, event):
"""Decides which action to run on given event
Transforms the event into a tuple (vertex, neighbors,action).
After transforming, it runs the correct action according to the
action received from the transformer.
:param event: The event to be processed
:type event: Dictionary
"""
LOG.debug('processor event:\n%s', event)
self._enrich_event(event)
entity = self.transformer_manager.transform(event)
if entity.action not in self.actions:
LOG.warning('Deprecated or unknown entity %s ignored', entity)
return
self._calculate_vitrage_aggregated_values(entity.vertex, entity.action)
self._set_datasource_name(entity, event)
self.actions[entity.action](entity.vertex, entity.neighbors)
def create_entity(self, new_vertex, neighbors):
"""Adds new vertex to the entity graph
Adds the entity to the entity graph, and connects it's neighbors
:param new_vertex: The new vertex to add to graph
:type new_vertex: Vertex
:param neighbors: The neighbors of the new vertex
:type neighbors: List
"""
LOG.debug('Add entity to entity graph:\n%s', new_vertex)
self._add_resource_details_to_alarm(new_vertex, neighbors)
self.entity_graph.add_vertex(new_vertex)
self._connect_neighbors(neighbors, set(), GraphAction.CREATE_ENTITY)
def update_entity(self, updated_vertex, neighbors):
"""Updates the vertex in the entity graph
Updates the in entity in the entity graph. In addition it removes old
neighbor connections, and connects the new neighbors.
:param updated_vertex: The vertex to be updated in the graph
:type updated_vertex: Vertex
:param neighbors: The neighbors of the updated vertex
:type neighbors: List
"""
LOG.debug('Update entity in entity graph:\n%s', updated_vertex)
graph_vertex = self.entity_graph.get_vertex(updated_vertex.vertex_id)
if graph_vertex and not PUtils.is_newer_vertex(graph_vertex,
updated_vertex):
LOG.warning("Update event arrived later than expected - "
"graph_vertex: %s --- updated_vertex: %s",
graph_vertex, updated_vertex)
return
self._add_resource_details_to_alarm(updated_vertex, neighbors)
PUtils.update_entity_graph_vertex(self.entity_graph,
graph_vertex,
updated_vertex)
self._update_neighbors(updated_vertex, neighbors)
def delete_entity(self, deleted_vertex, neighbors):
"""Deletes the vertex from the entity graph
Marks the corresponding vertex and its edges as deleted
:param deleted_vertex: The vertex to be deleted from the graph
:type deleted_vertex: Vertex
:param neighbors: The neighbors of the deleted vertex
:type neighbors: List
"""
LOG.debug('Delete entity from entity graph:\n%s', deleted_vertex)
graph_vertex = self.entity_graph.get_vertex(deleted_vertex.vertex_id)
if not graph_vertex:
LOG.warning('Delete - vertex not found %s', deleted_vertex)
return
elif PUtils.is_deleted(graph_vertex):
LOG.warning('Delete - vertex already deleted - '
"graph_vertex: %s --- deleted_vertex: %s",
graph_vertex, deleted_vertex)
return
elif not PUtils.is_newer_vertex(graph_vertex, deleted_vertex):
LOG.warning("Delete event arrived later than expected - "
"graph_vertex: %s --- deleted_vertex: %s",
graph_vertex, deleted_vertex)
return
neighbor_vertices = self.entity_graph.neighbors(
deleted_vertex.vertex_id)
neighbor_edges = self.entity_graph.get_edges(
deleted_vertex.vertex_id)
for edge in neighbor_edges:
PUtils.mark_deleted(self.entity_graph, edge)
for vertex in neighbor_vertices:
PUtils.delete_placeholder_vertex(self.entity_graph, vertex)
PUtils.mark_deleted(self.entity_graph, deleted_vertex)
def update_relationship(self, entity_vertex, neighbors):
LOG.debug('Update relationship in entity graph:\n%s', neighbors)
if entity_vertex:
self.entity_graph.update_vertex(entity_vertex)
for neighbor in neighbors:
self.entity_graph.update_edge(neighbor.edge)
def delete_relationship(self, updated_vertex, neighbors):
LOG.debug('Delete relationship from entity graph:\n%s', neighbors)
if updated_vertex:
self.entity_graph.update_vertex(updated_vertex)
for neighbor in neighbors:
graph_edge = self.entity_graph.get_edge(neighbor.edge.source_id,
neighbor.edge.target_id,
neighbor.edge.label)
if graph_edge:
PUtils.mark_deleted(self.entity_graph, graph_edge)
def remove_deleted_entity(self, vertex, neighbors):
"""Removes the deleted vertex from the entity graph
Removes vertex that it's vitrage_is_deleted value is True
:param vertex: The vertex to be removed from the graph
:type vertex: Vertex
:param neighbors: The neighbors of the deleted vertex
:type neighbors: List - It's just a mock in this method
"""
LOG.debug('Remove deleted entity from entity graph:\n%s', vertex)
graph_vertex = self.entity_graph.get_vertex(vertex.vertex_id)
if graph_vertex and PUtils.is_deleted(graph_vertex) and \
PUtils.is_newer_vertex(graph_vertex, vertex):
self.entity_graph.remove_vertex(vertex)
else:
LOG.warning("Remove deleted entity arrived on invalid resource: "
"deleted_vertex - %s, graph_vertex - %s",
vertex, graph_vertex)
def _update_neighbors(self, vertex, neighbors):
"""Updates vertices neighbor connections
1. Removes old neighbor connections
2. connects the new neighbors.
"""
(valid_edges, obsolete_edges) = self._find_edges_status(vertex,
neighbors)
self._delete_old_connections(vertex, obsolete_edges)
self._connect_neighbors(neighbors,
valid_edges,
GraphAction.UPDATE_ENTITY)
def _connect_neighbors(self, neighbors, valid_edges, action):
"""Updates the neighbor vertex and adds the connection edges """
if not neighbors:
LOG.debug('connect_neighbors - nothing to do')
return
LOG.debug("Connect neighbors. Neighbors: %s, valid_edges: %s",
neighbors, valid_edges)
for (vertex, edge) in neighbors:
graph_vertex = self.entity_graph.get_vertex(vertex.vertex_id)
if not graph_vertex or not PUtils.is_deleted(graph_vertex):
if graph_vertex and not PUtils.is_newer_vertex(graph_vertex,
vertex):
LOG.warning("Neighbor update event arrived later than "
"expected - graph_vertex: %s --- "
"updated_vertex: %s", graph_vertex, vertex)
else:
LOG.debug("Updates vertex: %s", vertex)
self._calculate_vitrage_aggregated_values(vertex, action)
PUtils.update_entity_graph_vertex(self.entity_graph,
graph_vertex,
vertex)
if edge not in valid_edges:
LOG.debug("Updates edge: %s", edge)
self.entity_graph.update_edge(edge)
else:
LOG.debug("neighbor vertex wasn't updated: %s", vertex)
def _delete_old_connections(self, vertex, obsolete_edges):
"""Deletes the "vertex" old connections
Finds the old connections that are connected to updated_vertex,
and marks them as deleted
"""
if not obsolete_edges:
LOG.debug('obsolete_edges - nothing to do')
return
LOG.debug('Delete old connections. Vertex:\n%s', vertex)
# remove old edges and placeholder vertices if exist
for edge in obsolete_edges:
LOG.debug("Delete obsolete edge:\n%s", edge)
PUtils.mark_deleted(self.entity_graph, edge)
graph_ver = self.entity_graph.get_vertex(
edge.other_vertex(vertex.vertex_id))
PUtils.delete_placeholder_vertex(self.entity_graph, graph_ver)
def _find_edges_status(self, vertex, neighbors):
"""Finds "vertex" valid and old connections
Checks all the edges that are connected to the vertex in the entity
graph, and finds which of them are old connections (edges that are no
longer connected to those entities), and which are valid connections.
"""
valid_edges = set()
obsolete_edges = set()
graph_neighbor_types = \
PUtils.find_neighbor_types(neighbors)
neighbor_edges = set(e for v, e in neighbors)
for curr_edge in self.entity_graph.get_edges(vertex.vertex_id,
direction=Direction.BOTH):
# check if the edge in the graph has a connection to the
# same type of resources in the new neighbors list
neighbor_vertex = self.entity_graph.get_vertex(
curr_edge.other_vertex(vertex.vertex_id))
is_connection_type_exist = PUtils.get_vertex_types(
neighbor_vertex) in graph_neighbor_types
if not is_connection_type_exist:
valid_edges.add(curr_edge)
continue
if curr_edge in neighbor_edges:
valid_edges.add(curr_edge)
else:
obsolete_edges.add(curr_edge)
return valid_edges, obsolete_edges
def _initialize_events_actions(self):
self.actions = {
GraphAction.CREATE_ENTITY: self.create_entity,
GraphAction.UPDATE_ENTITY: self.update_entity,
GraphAction.DELETE_ENTITY: self.delete_entity,
GraphAction.UPDATE_RELATIONSHIP: self.update_relationship,
GraphAction.DELETE_RELATIONSHIP: self.delete_relationship,
GraphAction.REMOVE_DELETED_ENTITY: self.remove_deleted_entity,
}
def _calculate_vitrage_aggregated_values(self, vertex, action):
LOG.debug("calculate event state")
try:
if action in [GraphAction.UPDATE_ENTITY,
GraphAction.DELETE_ENTITY,
GraphAction.CREATE_ENTITY]:
graph_vertex = self.entity_graph.get_vertex(
vertex.vertex_id)
elif action in [GraphAction.REMOVE_DELETED_ENTITY,
GraphAction.UPDATE_RELATIONSHIP,
GraphAction.DELETE_RELATIONSHIP]:
return None
else:
LOG.error('unrecognized action: %s for vertex: %s',
action, vertex)
return None
self.info_mapper.vitrage_aggregate_values(vertex, graph_vertex)
except Exception:
LOG.exception("Calculate aggregated state failed.")
def _enrich_event(self, event):
attr = self.transformer_manager.get_enrich_query(event)
if attr is None:
return
result = self.entity_graph.get_vertices(attr)
event[TransformerBase.QUERY_RESULT] = result
def _add_resource_details_to_alarm(self, vertex, neighbors):
if not neighbors:
return
resource = None
alarms = []
if vertex.get(VProps.VITRAGE_CATEGORY) == ECategory.ALARM:
alarms = [vertex]
for neighbor in neighbors:
if neighbor.vertex.get(VProps.VITRAGE_CATEGORY) ==\
ECategory.RESOURCE:
resource = neighbor.vertex
elif vertex.get(VProps.VITRAGE_CATEGORY) == ECategory.RESOURCE:
resource = vertex
for neighbor in neighbors:
if neighbor.vertex.get(VProps.VITRAGE_CATEGORY) == \
ECategory.ALARM:
alarms.append(neighbor.vertex)
for alarm in alarms:
if not resource:
continue
project_id = resource.get(VProps.PROJECT_ID)
if not project_id:
n_vertex = self.entity_graph.get_vertex(resource.vertex_id)
project_id = n_vertex.get(VProps.PROJECT_ID) \
if n_vertex else None
self.add_resource_details(
alarm,
r_id=resource.vertex_id,
r_type=resource.get(VProps.VITRAGE_TYPE),
r_project_id=project_id)
@staticmethod
def add_resource_details(alarm, r_id, r_type, r_project_id):
alarm[VProps.VITRAGE_RESOURCE_ID] = r_id
alarm[VProps.VITRAGE_RESOURCE_TYPE] = r_type
if r_project_id:
alarm[VProps.VITRAGE_RESOURCE_PROJECT_ID] = r_project_id
@staticmethod
def _set_datasource_name(entity, event):
if entity.vertex and \
(entity.action == GraphAction.CREATE_ENTITY or
entity.action == GraphAction.UPDATE_ENTITY):
datasource_name = event.get(VProps.VITRAGE_DATASOURCE_NAME)
if datasource_name:
entity.vertex.properties[VProps.VITRAGE_DATASOURCE_NAME] = \
datasource_name
class Processor(processor.ProcessorBase):
def __init__(self, conf, e_graph=None, graph_persistor=None):
super(Processor, self).__init__()
self.conf = conf
self.transformer_manager = TransformerManager(self.conf)
self.info_mapper = DatasourceInfoMapper(self.conf)
self._initialize_events_actions()
self.entity_graph = e_graph
self._notifier = GraphNotifier(conf)
self._graph_persistor = graph_persistor
def process_event(self, event):
"""Decides which action to run on given event
Transforms the event into a tuple (vertex, neighbors,action).
After transforming, it runs the correct action according to the
action received from the transformer.
:param event: The event to be processed
:type event: Dictionary
"""
LOG.debug('processor event:\n%s', event)
self._enrich_event(event)
entity = self.transformer_manager.transform(event)
if entity.action not in self.actions.keys():
LOG.debug('deprecated or unknown entity %s ignored', str(entity))
return
self._calculate_vitrage_aggregated_values(entity.vertex, entity.action)
self.actions[entity.action](entity.vertex, entity.neighbors)
if self._graph_persistor:
self._graph_persistor.update_last_event_timestamp(event)
def create_entity(self, new_vertex, neighbors):
"""Adds new vertex to the entity graph
Adds the entity to the entity graph, and connects it's neighbors
:param new_vertex: The new vertex to add to graph
:type new_vertex: Vertex
:param neighbors: The neighbors of the new vertex
:type neighbors: List
"""
LOG.debug('Add entity to entity graph:\n%s', new_vertex)
self._add_resource_details_to_alarm(new_vertex, neighbors)
self.entity_graph.add_vertex(new_vertex)
self._connect_neighbors(neighbors, set(), GraphAction.CREATE_ENTITY)
def update_entity(self, updated_vertex, neighbors):
"""Updates the vertex in the entity graph
Updates the in entity in the entity graph. In addition it removes old
neighbor connections, and connects the new neighbors.
:param updated_vertex: The vertex to be updated in the graph
:type updated_vertex: Vertex
:param neighbors: The neighbors of the updated vertex
:type neighbors: List
"""
LOG.debug('Update entity in entity graph:\n%s', updated_vertex)
graph_vertex = self.entity_graph.get_vertex(updated_vertex.vertex_id)
if (not graph_vertex) or \
PUtils.is_newer_vertex(graph_vertex, updated_vertex):
self._add_resource_details_to_alarm(updated_vertex, neighbors)
PUtils.update_entity_graph_vertex(self.entity_graph,
graph_vertex,
updated_vertex)
self._update_neighbors(updated_vertex, neighbors)
else:
LOG.warning("Update event arrived on invalid resource: %s",
updated_vertex)
def delete_entity(self, deleted_vertex, neighbors):
"""Deletes the vertex from the entity graph
Marks the corresponding vertex and its edges as deleted
:param deleted_vertex: The vertex to be deleted from the graph
:type deleted_vertex: Vertex
:param neighbors: The neighbors of the deleted vertex
:type neighbors: List
"""
LOG.debug('Delete entity from entity graph:\n%s', deleted_vertex)
graph_vertex = self.entity_graph.get_vertex(deleted_vertex.vertex_id)
if graph_vertex and (not PUtils.is_deleted(graph_vertex)) and \
PUtils.is_newer_vertex(graph_vertex, deleted_vertex):
neighbor_vertices = self.entity_graph.neighbors(
deleted_vertex.vertex_id)
neighbor_edges = self.entity_graph.get_edges(
deleted_vertex.vertex_id)
for edge in neighbor_edges:
PUtils.mark_deleted(self.entity_graph, edge)
for vertex in neighbor_vertices:
PUtils.delete_placeholder_vertex(self.entity_graph, vertex)
PUtils.mark_deleted(self.entity_graph, deleted_vertex)
else:
LOG.warning("Delete event arrived on invalid resource: "
"deleted_vertex - %s, graph_vertex - %s",
deleted_vertex, graph_vertex)
def update_relationship(self, entity_vertex, neighbors):
LOG.debug('Update relationship in entity graph:\n%s', neighbors)
if entity_vertex:
self.entity_graph.update_vertex(entity_vertex)
for neighbor in neighbors:
self.entity_graph.update_edge(neighbor.edge)
def delete_relationship(self, updated_vertex, neighbors):
LOG.debug('Delete relationship from entity graph:\n%s', neighbors)
if updated_vertex:
self.entity_graph.update_vertex(updated_vertex)
for neighbor in neighbors:
graph_edge = self.entity_graph.get_edge(neighbor.edge.source_id,
neighbor.edge.target_id,
neighbor.edge.label)
if graph_edge:
PUtils.mark_deleted(self.entity_graph, graph_edge)
def remove_deleted_entity(self, vertex, neighbors):
"""Removes the deleted vertex from the entity graph
Removes vertex that it's vitrage_is_deleted value is True
:param vertex: The vertex to be removed from the graph
:type vertex: Vertex
:param neighbors: The neighbors of the deleted vertex
:type neighbors: List - It's just a mock in this method
"""
LOG.debug('Remove deleted entity from entity graph:\n%s', vertex)
graph_vertex = self.entity_graph.get_vertex(vertex.vertex_id)
if graph_vertex and PUtils.is_deleted(graph_vertex) and \
PUtils.is_newer_vertex(graph_vertex, vertex):
self.entity_graph.remove_vertex(vertex)
else:
LOG.warning("Delete event arrived on invalid resource: "
"deleted_vertex - %s, graph_vertex - %s",
vertex, graph_vertex)
def start_notifier(self):
if self._notifier and self._notifier.enabled:
self.entity_graph.subscribe(self._notifier.notify_when_applicable)
LOG.info('Graph notifications subscription added')
def _update_neighbors(self, vertex, neighbors):
"""Updates vertices neighbor connections
1. Removes old neighbor connections
2. connects the new neighbors.
"""
(valid_edges, obsolete_edges) = self._find_edges_status(vertex,
neighbors)
self._delete_old_connections(vertex, obsolete_edges)
self._connect_neighbors(neighbors,
valid_edges,
GraphAction.UPDATE_ENTITY)
def _connect_neighbors(self, neighbors, valid_edges, action):
"""Updates the neighbor vertex and adds the connection edges """
if not neighbors:
LOG.debug('connect_neighbors - nothing to do')
return
LOG.debug("Connect neighbors. Neighbors: %s, valid_edges: %s",
neighbors, valid_edges)
for (vertex, edge) in neighbors:
graph_vertex = self.entity_graph.get_vertex(vertex.vertex_id)
if not graph_vertex or not PUtils.is_deleted(graph_vertex):
if PUtils.can_update_vertex(graph_vertex, vertex):
LOG.debug("Updates vertex: %s", vertex)
self._calculate_vitrage_aggregated_values(vertex, action)
PUtils.update_entity_graph_vertex(self.entity_graph,
graph_vertex,
vertex)
if edge not in valid_edges:
LOG.debug("Updates edge: %s", edge)
self.entity_graph.update_edge(edge)
else:
LOG.debug("neighbor vertex wasn't updated: %s", vertex)
def _delete_old_connections(self, vertex, obsolete_edges):
"""Deletes the "vertex" old connections
Finds the old connections that are connected to updated_vertex,
and marks them as deleted
"""
if not obsolete_edges:
LOG.debug('obsolete_edges - nothing to do')
return
LOG.debug('Delete old connections. Vertex:\n%s', vertex)
# remove old edges and placeholder vertices if exist
for edge in obsolete_edges:
LOG.debug("Delete obsolete edge:\n%s", edge)
PUtils.mark_deleted(self.entity_graph, edge)
graph_ver = self.entity_graph.get_vertex(
edge.other_vertex(vertex.vertex_id))
PUtils.delete_placeholder_vertex(self.entity_graph, graph_ver)
def _find_edges_status(self, vertex, neighbors):
"""Finds "vertex" valid and old connections
Checks all the edges that are connected to the vertex in the entity
graph, and finds which of them are old connections (edges that are no
longer connected to those entities), and which are valid connections.
"""
valid_edges = set()
obsolete_edges = set()
graph_neighbor_types = \
PUtils.find_neighbor_types(neighbors)
neighbor_edges = set(e for v, e in neighbors)
for curr_edge in self.entity_graph.get_edges(vertex.vertex_id,
direction=Direction.BOTH):
# check if the edge in the graph has a connection to the
# same type of resources in the new neighbors list
neighbor_vertex = self.entity_graph.get_vertex(
curr_edge.other_vertex(vertex.vertex_id))
is_connection_type_exist = PUtils.get_vertex_types(
neighbor_vertex) in graph_neighbor_types
if not is_connection_type_exist:
valid_edges.add(curr_edge)
continue
if curr_edge in neighbor_edges:
valid_edges.add(curr_edge)
else:
obsolete_edges.add(curr_edge)
return valid_edges, obsolete_edges
def _initialize_events_actions(self):
self.actions = {
GraphAction.CREATE_ENTITY: self.create_entity,
GraphAction.UPDATE_ENTITY: self.update_entity,
GraphAction.DELETE_ENTITY: self.delete_entity,
GraphAction.UPDATE_RELATIONSHIP: self.update_relationship,
GraphAction.DELETE_RELATIONSHIP: self.delete_relationship,
GraphAction.REMOVE_DELETED_ENTITY: self.remove_deleted_entity,
}
def _calculate_vitrage_aggregated_values(self, vertex, action):
LOG.debug("calculate event state")
try:
if action in [GraphAction.UPDATE_ENTITY,
GraphAction.DELETE_ENTITY,
GraphAction.CREATE_ENTITY]:
graph_vertex = self.entity_graph.get_vertex(
vertex.vertex_id)
elif action in [GraphAction.END_MESSAGE,
GraphAction.REMOVE_DELETED_ENTITY,
GraphAction.UPDATE_RELATIONSHIP,
GraphAction.DELETE_RELATIONSHIP]:
return None
else:
LOG.error('unrecognized action: %s for vertex: %s',
action, vertex)
return None
self.info_mapper.vitrage_aggregate_values(vertex, graph_vertex)
except Exception:
LOG.exception("Calculate aggregated state failed.")
def _enrich_event(self, event):
attr = self.transformer_manager.get_enrich_query(event)
if attr is None:
return
result = self.entity_graph.get_vertices(attr)
event[TransformerBase.QUERY_RESULT] = result
@staticmethod
def _add_resource_details_to_alarm(vertex, neighbors):
if not vertex.get(VProps.VITRAGE_CATEGORY) == EntityCategory.ALARM \
or not neighbors:
return
# for the possibility that alarm doesn't have resource
vertex.properties[VProps.VITRAGE_RESOURCE_ID] = None
vertex.properties[VProps.VITRAGE_RESOURCE_TYPE] = None
for neighbor in neighbors:
if neighbor.vertex.get(VProps.VITRAGE_CATEGORY) == \
EntityCategory.RESOURCE:
vertex.properties[VProps.VITRAGE_RESOURCE_ID] = \
neighbor.vertex.vertex_id
vertex.properties[VProps.VITRAGE_RESOURCE_TYPE] = \
neighbor.vertex.get(VProps.VITRAGE_TYPE)