change topology api to get complex query

Implements: blueprint get-topology-api
Change-Id: I706684992b8f9e7c1bda4a9f386c78ab9c4adb54

vitrageclient/v1/cli/topology.py

@@ -19,16 +19,15 @@ class TopologyShow(show.ShowOne):
 
     def get_parser(self, prog_name):
         parser = super(TopologyShow, self).get_parser(prog_name)
-        parser.add_argument("--edges",
-                            type=lambda s: [edge for edge in s.split(',')],
-                            metavar="<edge type,edge type>",
-                            help="list of edges type (separated by ',')")
-        parser.add_argument("--vertices",
-                            type=lambda s: [vertex for vertex in s.split(',')],
-                            metavar="<vertex type,vertex type>",
-                            help="list of vertices types (separated by ',')")
-        parser.add_argument("--depth", type=int,
-                            help="the depth of the topology")
+        parser.add_argument("--filter",
+                            metavar="<query>",
+                            help="query for the graph)")
+
+        parser.add_argument("--limit", type=int,
+                            metavar="<depth>",
+                            help="the depth of the topology graph")
+
+        parser.add_argument("--root", help="the root of the topology graph")
 
         parser.add_argument('--graph-type', choices=['tree', 'graph'],
                             default='graph', dest='type',
@@ -41,8 +40,8 @@ class TopologyShow(show.ShowOne):
         return "json"
 
     def take_action(self, parsed_args):
-        topology = self.app.client.topology.get(edges=parsed_args.edges,
-                                                vertices=parsed_args.vertices,
-                                                depth=parsed_args.depth,
-                                                graph_type=parsed_args.type)
+        topology = self.app.client.topology.get(limit=parsed_args.limit,
+                                                graph_type=parsed_args.type,
+                                                query=parsed_args.filter,
+                                                root=parsed_args.root)
         return self.dict2columns(topology)

vitrageclient/v1/topology.py

@@ -9,6 +9,7 @@
 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 # License for the specific language governing permissions and limitations
 # under the License.
+import json
 
 
 class Topology(object):
@@ -17,15 +18,18 @@ class Topology(object):
     def __init__(self, api):
         self.api = api
 
-    def get(self, edges=None, vertices=None, depth=None, graph_type='graph'):
+    def get(self, depth=None, graph_type='graph', query=None, root=None,
+            limit=None):
         """Get a topology
 
+        :param limit: the depth of the topology graph
+        :param root:  the root of the topology graph
+        :param query: the query filter for the topology
         :param graph_type: graph can be tree or graph
         :param depth: the depth of the topology graph
-        :param vertices: list of vertices types
-        :param edges: list of edges type
         """
 
-        params = dict(edges=edges, vertices=vertices, depth=depth,
-                      graph_type=graph_type)
-        return self.api.get(self.URL, params=params).json()
+        params = dict(depth=depth, graph_type=graph_type,
+                      query=json.loads(query),
+                      root=root)
+        return self.api.post(self.URL, json=params).json()