Handle empty storage table infos result. Get time from local time

for vm metrics. Log sent metrics.

src/azureperformancecounters.py

@@ -62,7 +62,7 @@ class AzureVmPerformanceCounters(object):
         headers = {"Authorization": 'Bearer ' + self.accessToken}
         json_output = requests.get(list_metrics_url, headers=headers).json()
 
-        if json_output.has_key("value"):
+        if json_output.has_key("value") and len(json_output["value"]) > 0:
             return json_output["value"]
         else:
             return None

src/client.py

@@ -196,9 +196,7 @@ class Client:
                     'vm.%(name)s.memory.usage %(value)f %(time)d' % {
                         'name': vm.name,
                         'value': vm_counters["memory_usage"]["value"],
-                        'time': self.datetime_to_time(
-                            vm_counters["memory_usage"]["timestamp"],
-                        ),
+                        'time': time.time(),
                     }
                 )
 
@@ -207,9 +205,7 @@ class Client:
                     'vm.%(name)s.cpu.percent %(value)f %(time)d' % {
                         'name': vm.name,
                         'value': vm_counters["processor_usage"]["value"],
-                        'time': self.datetime_to_time(
-                            vm_counters["processor_usage"]["timestamp"],
-                        ),
+                        'time': time.time(),
                     }
                 )
 
@@ -223,9 +219,7 @@ class Client:
                                 'name': vm.name,
                                 'interface': "eth0",
                                 'metric': pc_name,
-                                'time': self.datetime_to_time(
-                                    vm_counters[pc_name]["timestamp"],
-                                ),
+                                'time': time.time(),
                                 'data': vm_counters[pc_name]["value"],
                             }
                         )
@@ -238,6 +232,9 @@ class Client:
             }
         )
 
+        logger.info("current metrics:")
+        logger.info(metrics)
+
         return metrics
 
     @staticmethod