DS refactor, fixes/optimizations

mktxp/datasources/system_resource_ds.py

@@ -0,0 +1,28 @@
+# coding=utf8
+## Copyright (c) 2020 Arseniy Kuznetsov
+##
+## This program is free software; you can redistribute it and/or
+## modify it under the terms of the GNU General Public License
+## as published by the Free Software Foundation; either version 2
+## of the License, or (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+
+
+from mktxp.datasources.base_ds import BaseDSProcessor
+
+
+class SystemResourceMetricsDataSource:
+    ''' System Resource Metrics data provider
+    '''             
+    @staticmethod    
+    def metric_records(router_entry, *, metric_labels = []):
+        try:
+            system_resource_records = router_entry.api_connection.router_api().get_resource('/system/resource').get()
+            return BaseDSProcessor.trimmed_records(router_entry, router_records = system_resource_records, metric_labels = metric_labels)
+        except Exception as exc:
+            print(f'Error getting system resource info from router{router_entry.router_name}@{router_entry.config_entry.hostname}: {exc}')
+            return None