be more verbose is an exception occurs

[osm/vim-emu.git] / src / emuvim / dcemulator / net.py

diff --git a/src/emuvim/dcemulator/net.py b/src/emuvim/dcemulator/net.py
index b201112..adf17d4 100755 (executable)
--- a/src/emuvim/dcemulator/net.py
+++ b/src/emuvim/dcemulator/net.py
@@ -261,7 +261,7 @@ class DCNetwork(Containernet):
             if kwargs.get('bidirectional'):
                 ret = ret +'\n' + self._chainAddFlow(vnf_dst_name, vnf_src_name, vnf_dst_interface, vnf_src_interface, **kwargs)
 
-        elif cmd == 'del-flows':  # TODO: del-flow to be implemented
+        elif cmd == 'del-flows':
             ret = self._chainAddFlow(vnf_src_name, vnf_dst_name, vnf_src_interface, vnf_dst_interface, **kwargs)
             if kwargs.get('bidirectional'):
                 ret = ret + '\n' + self._chainAddFlow(vnf_dst_name, vnf_src_name, vnf_dst_interface, vnf_src_interface, **kwargs)
@@ -274,7 +274,6 @@ class DCNetwork(Containernet):
 
     def _chainAddFlow(self, vnf_src_name, vnf_dst_name, vnf_src_interface=None, vnf_dst_interface=None, **kwargs):
 
-        # TODO: this needs to be cleaned up
         #check if port is specified (vnf:port)
         if vnf_src_interface is None:
             # take first interface by default
@@ -315,7 +314,9 @@ class DCNetwork(Containernet):
             # if all shortest paths are wanted, use: all_shortest_paths
             path = nx.shortest_path(self.DCNetwork_graph, src_sw, dst_sw, weight=kwargs.get('weight'))
         except:
-            logging.info("No path could be found between {0} and {1}".format(vnf_src_name, vnf_dst_name))
+            logging.exception("No path could be found between {0} and {1}".format(vnf_src_name, vnf_dst_name))
+            logging.debug("Graph nodes: %r" % self.DCNetwork_graph.nodes())
+            logging.debug("Graph edges: %r" % self.DCNetwork_graph.edges())
             return "No path could be found between {0} and {1}".format(vnf_src_name, vnf_dst_name)
 
         logging.info("Path between {0} and {1}: {2}".format(vnf_src_name, vnf_dst_name, path))