def _graph_contains_subgraph_edges(graph, subgraph, subgraph_edges):
"""Check if graph contains all the expected edges
For each (sub-graph) expected edge, check if a corresponding edge exists
in the graph with relevant properties check
:type graph: driver.Graph
:type subgraph: driver.Graph
:type subgraph_edges: set of driver.Edge
:rtype: bool
"""
for e in subgraph_edges:
graph_v_id_source = subgraph.get_vertex(e.source_id).get(MAPPED_V_ID)
graph_v_id_target = subgraph.get_vertex(e.target_id).get(MAPPED_V_ID)
if not graph_v_id_source or not graph_v_id_target:
raise VitrageAlgorithmError('Cant get vertex for edge %s' % e)
found_graph_edge = graph.get_edge(graph_v_id_source,
graph_v_id_target,
e.label)
if not found_graph_edge and e.get(NEG_CONDITION):
continue
if not found_graph_edge or not check_filter(found_graph_edge, e,
NEG_CONDITION):
return False
return True
def create_graph_from_matching_vertices(self,
vertex_attr_filter=None,
query_dict=None,
edge_attr_filter=None):
if query_dict:
vertices = self.graph.get_vertices(query_dict=query_dict)
elif vertex_attr_filter:
vertices = self.graph.get_vertices(
vertex_attr_filter=vertex_attr_filter)
else:
vertices = self.graph.get_vertices()
vertices_ids = [vertex.vertex_id for vertex in vertices]
graph = NXGraph('graph')
graph._g = self.graph._g.subgraph(vertices_ids)
# delete non matching edges
if edge_attr_filter:
for source, target, edge_data in graph._g.edges_iter(data=True):
if not check_filter(edge_data, edge_attr_filter):
graph.remove_edge(u=source, v=target)
LOG.debug('match query, find graph: nodes %s, edges %s',
str(graph._g.nodes(data=True)),
str(graph._g.edges(data=True)))
LOG.debug('match query, real graph: nodes %s, edges %s',
str(self.graph._g.nodes(data=True)),
str(self.graph._g.edges(data=True)))
return graph
def create_graph_from_matching_vertices(self,
vertex_attr_filter=None,
query_dict=None,
edge_attr_filter=None):
if query_dict:
vertices = self.graph.get_vertices(query_dict=query_dict)
elif vertex_attr_filter:
vertices = self.graph.get_vertices(
vertex_attr_filter=vertex_attr_filter)
else:
vertices = self.graph.get_vertices()
vertices_ids = [vertex.vertex_id for vertex in vertices]
graph = NXGraph('graph')
graph._g = self.graph._g.subgraph(vertices_ids)
# delete non matching edges
if edge_attr_filter:
for source, target, edge_data in graph._g.edges_iter(data=True):
if not check_filter(edge_data, edge_attr_filter):
graph.remove_edge(u=source, v=target)
LOG.debug('match query, find graph: nodes %s, edges %s',
str(graph._g.nodes(data=True)),
str(graph._g.edges(data=True)))
LOG.debug('match query, real graph: nodes %s, edges %s',
str(self.graph._g.nodes(data=True)),
str(self.graph._g.edges(data=True)))
return graph
def _update_mapping(subgraph, graph, subgraph_id, graph_id, validate):
subgraph_vertex = subgraph.get_vertex(subgraph_id)
if validate:
graph_vertex = graph.get_vertex(graph_id)
if not check_filter(graph_vertex, subgraph_vertex, MAPPED_V_ID):
return False
subgraph_vertex[MAPPED_V_ID] = graph_id
subgraph.update_vertex(subgraph_vertex)
return True
def apply_edge_attr_filter(graph, edge_attr_filter):
edges = graph._g.edges(data=True, keys=True)
edges_to_remove = [(u, v, k) for (u, v, k, d) in edges
if not check_filter(d, edge_attr_filter)]
if edges_to_remove and is_frozen(graph._g):
graph._g = graph._g.copy()
for source, target, key in edges_to_remove:
graph._g.remove_edge(u=source, v=target, key=key)
def test_basic_regex(self):
event_properties = {
"time": 121354,
"vitrage_type": "zabbix",
"vitrage_category": "ALARM",
"rawtext": "Interface kukoo down on {HOST.NAME}",
"host": "some_host_kukoo"
}
attr_filter = {
"vitrage_category": "ALARM",
"rawtext.regex": "Interface ([_a-zA-Z0-9'\-]+) down on {"
"HOST.NAME}",
"host": "some_host_kukoo"
}
self.assertEqual(
True, check_filter(data=event_properties, attr_filter=attr_filter))
def test_basic_regex_with_no_match(self):
event_properties = {
"time": 121354,
"vitrage_type": "zabbix",
"vitrage_category": "ALARM",
"rawtext": "Text With No Match",
"host": "some_host_kukoo"
}
attr_filter = {
"vitrage_category": "ALARM",
"rawtext.RegEx": "Interface ([_a-zA-Z0-9'\-]+) down on {"
"HOST.NAME}",
"host": "some_host_kukoo"
}
self.assertFalse(
check_filter(data=event_properties, attr_filter=attr_filter))
def _graph_contains_subgraph_edges(graph, subgraph, subgraph_edges):
"""Check if graph contains all the expected edges
For each (sub-graph) expected edge, check if a corresponding edge exists
in the graph with relevant properties check
:type graph: driver.Graph
:type subgraph: driver.Graph
:type subgraph_edges: set of driver.Edge
:rtype: bool
"""
for e in subgraph_edges:
graph_v_id_source = subgraph.get_vertex(e.source_id).get(MAPPED_V_ID)
graph_v_id_target = subgraph.get_vertex(e.target_id).get(MAPPED_V_ID)
if not graph_v_id_source or not graph_v_id_target:
raise VitrageAlgorithmError('Cant get vertex for edge' + str(e))
found_graph_edge = graph.get_edge(graph_v_id_source,
graph_v_id_target,
e.label)
if not found_graph_edge or not check_filter(found_graph_edge, e):
return False
return True
def check_vertex(vertex_data):
return check_filter(vertex_data, vertex_attr_filter)
def check_edge(edge_data):
return check_filter(edge_data, edge_attr_filter)
def check_vertex(vertex_data):
return check_filter(vertex_data, vertex_attr_filter)
def check_edge(edge_data):
return check_filter(edge_data, edge_attr_filter)
def _apply_edge_attr_filter(graph, edge_attr_filter):
for source, target, edge_data in graph._g.edges_iter(data=True):
if not check_filter(edge_data, edge_attr_filter):
graph._g.remove_edge(u=source, v=target)
