cleanup rest API issues
diff --git a/src/emuvim/dcemulator/monitoring.py b/src/emuvim/dcemulator/monitoring.py
index 89d82ba..78d6ebb 100755
--- a/src/emuvim/dcemulator/monitoring.py
+++ b/src/emuvim/dcemulator/monitoring.py
@@ -107,7 +107,7 @@
         # Prometheus pushgateway and DB are started as external contianer, outside of son-emu

         #self.pushgateway_process = self.start_PushGateway()

         #self.prometheus_process = self.start_Prometheus()

-        self.cadvisor_process = self.start_cadvisor()

+        #self.cadvisor_process = self.start_cadvisor()

 

     # first set some parameters, before measurement can start

     def setup_flow(self, vnf_name, vnf_interface=None, metric='tx_packets', cookie=0):

@@ -167,7 +167,15 @@
             logging.exception("setup_metric error.")

             return ex.message

 

-    def stop_flow(self, vnf_name, vnf_interface=None, metric=None, cookie=0):

+    def stop_flow(self, vnf_name, vnf_interface=None, metric=None, cookie=0,):

+

+        # check if port is specified (vnf:port)

+        if vnf_interface is None and metric is not None:

+            # take first interface by default

+            connected_sw = self.net.DCNetwork_graph.neighbors(vnf_name)[0]

+            link_dict = self.net.DCNetwork_graph[vnf_name][connected_sw]

+            vnf_interface = link_dict[0]['src_port_id']

+

         for flow_dict in self.flow_metrics:

             if flow_dict['vnf_name'] == vnf_name and flow_dict['vnf_interface'] == vnf_interface \

                     and flow_dict['metric_key'] == metric and flow_dict['cookie'] == cookie:

@@ -187,6 +195,8 @@
                 logging.info('Stopped monitoring flow {3}: {2} on {0}:{1}'.format(vnf_name, vnf_interface, metric, cookie))

                 return 'Stopped monitoring flow {3}: {2} on {0}:{1}'.format(vnf_name, vnf_interface, metric, cookie)

 

+        return 'Error stopping monitoring flow: {0} on {1}:{2}'.format(metric, vnf_name, vnf_interface)

+

 

     # first set some parameters, before measurement can start

     def setup_metric(self, vnf_name, vnf_interface=None, metric='tx_packets'):

@@ -258,6 +268,13 @@
 

     def stop_metric(self, vnf_name, vnf_interface=None, metric=None):

 

+        # check if port is specified (vnf:port)

+        if vnf_interface is None and metric is not None:

+            # take first interface by default

+            connected_sw = self.net.DCNetwork_graph.neighbors(vnf_name)[0]

+            link_dict = self.net.DCNetwork_graph[vnf_name][connected_sw]

+            vnf_interface = link_dict[0]['src_port_id']

+

         for metric_dict in self.network_metrics:

             if metric_dict['vnf_name'] == vnf_name and metric_dict['vnf_interface'] == vnf_interface \

                     and metric_dict['metric_key'] == metric:

@@ -319,8 +336,13 @@
                 logging.info('Stopped monitoring vnf: {0}'.format(vnf_name))

                 return 'Stopped monitoring: {0}'.format(vnf_name)

 

+        return 'Error stopping monitoring metric: {0} on {1}:{2}'.format(metric, vnf_name, vnf_interface)

 

-    # get all metrics defined in the list and export it to Prometheus

+

+

+

+

+# get all metrics defined in the list and export it to Prometheus

     def get_flow_metrics(self):

         while self.start_monitoring:

 

@@ -429,12 +451,20 @@
         cookie = metric_dict['cookie']

 

         # TODO aggregate all found flow stats

-        flow_stat = flow_stat_dict[str(switch_dpid)][0]

-        if 'bytes' in  metric_key:

-            counter = flow_stat['byte_count']

-        elif 'packet' in metric_key:

-            counter = flow_stat['packet_count']

+        #flow_stat = flow_stat_dict[str(switch_dpid)][0]

+        #if 'bytes' in metric_key:

+        #    counter = flow_stat['byte_count']

+        #elif 'packet' in metric_key:

+        #    counter = flow_stat['packet_count']

 

+        counter = 0

+        for flow_stat in flow_stat_dict[str(switch_dpid)]:

+            if 'bytes' in metric_key:

+                counter += flow_stat['byte_count']

+            elif 'packet' in metric_key:

+                counter += flow_stat['packet_count']

+

+        flow_stat = flow_stat_dict[str(switch_dpid)][0]

         flow_uptime = flow_stat['duration_sec'] + flow_stat['duration_nsec'] * 10 ** (-9)

 

         self.prom_metrics[metric_dict['metric_key']]. \

@@ -490,6 +520,7 @@
         self.monitor_thread.join()

         self.monitor_flow_thread.join()

 

+        # these containers are used for monitoring but are started now outside of son-emu

         '''

         if self.prometheus_process is not None:

             logging.info('stopping prometheus container')

@@ -502,13 +533,13 @@
             self.pushgateway_process.terminate()

             self.pushgateway_process.kill()

             self._stop_container('pushgateway')

-        '''

 

         if self.cadvisor_process is not None:

             logging.info('stopping cadvisor container')

             self.cadvisor_process.terminate()

             self.cadvisor_process.kill()

             self._stop_container('cadvisor')

+        '''

 

     def switch_tx_rx(self,metric=''):

         # when monitoring vnfs, the tx of the datacenter switch is actually the rx of the vnf