Fix whitespace issues in Python files

[demo.git] / vnfs / DAaaS / lib / promql_api / prom_ql_api.py

diff --git a/vnfs/DAaaS/lib/promql_api/prom_ql_api.py b/vnfs/DAaaS/lib/promql_api/prom_ql_api.py
index 8a5ce50..2ee273a 100644 (file)
--- a/vnfs/DAaaS/lib/promql_api/prom_ql_api.py
+++ b/vnfs/DAaaS/lib/promql_api/prom_ql_api.py
@@ -23,7 +23,8 @@ import requests
 from requests.exceptions import HTTPError
 
 
-API_VERSION = '/api/v1/query'
+QUERY_API_VERSION = '/api/v1/query'
+QUERY_RANGE_API_VERSION = '/api/v1/query_range'
 LIST_OF_ENV_VARIABLES = ["DATA_ENDPOINT"]
 MAP_ENV_VARIABLES = dict()
 LOG = logging.getLogger(__name__)
@@ -34,7 +35,7 @@ def set_log_config():
                     datefmt='%m-%d-%Y %I:%M:%S%p',
                     level=logging.DEBUG,
                     filename='promql_api.log',
-                    filemode='w')
+                    filemode='a')
     LOG.info("Set the log configs.")
 
 
@@ -45,7 +46,7 @@ def load_and_validate_env_vars(list_of_env_vars):
             LOG.info("Found env variable: {} ".format(env_var.upper()))
             MAP_ENV_VARIABLES[env_var.upper()] = environ.get(env_var)
         else:
-            #MAP_ENV_VARIABLES['DATA_ENDPOINT']='http://127.0.0.1:30090' # to be deleted
+            #MAP_ENV_VARIABLES['DATA_ENDPOINT']='http://127.0.0.1:9090' # to be deleted
             LOG.error("Env var: {} not found ! ".format(env_var.upper()))
             raise KeyError("Env variable: {} not found ! ".format(env_var.upper()))
 
@@ -74,7 +75,7 @@ def query(QUERY_STRING):
     params_map = {}
     list_of_result_sets = []
     list_of_substrings.append(MAP_ENV_VARIABLES['DATA_ENDPOINT'])
-    list_of_substrings.append(API_VERSION)
+    list_of_substrings.append(QUERY_API_VERSION)
     url = ''.join(list_of_substrings)
 
     for each_query_string in QUERY_STRING:
@@ -111,3 +112,60 @@ def query(QUERY_STRING):
                     LOG.info(each_result)
                 list_of_result_sets.append(results)
     return list_of_result_sets
+
+
+def validate_parameters(map_of_parameters):
+    for k,v in map_of_parameters.items():
+        if k not in ['query', 'start', 'end', 'step', 'timeout']:
+            LOG.error('Parameter : \'{}\' not supported by query_range'.format(k))
+            LOG.info('Valid parameters :: \'query\', \'start\', \'end\', \'step\', \'timeout\'')
+            raise Exception('Parameter : \'{}\' not supported by query_range. Check logs'.format(k))
+        if not isinstance(k,str):
+            LOG.error(':: Key Paramter : \'{}\' NOT a string! Keys should be string ::'.format(k))
+            raise Exception(':: Key Paramter : \'{}\' NOT a string! Keys should be string ::'.format(k))
+        if not isinstance(v,str):
+            LOG.error(':: Value Paramter of key: \'{}\' NOT a string! Values should be string ::'.format(k))
+            raise Exception(':: Value Paramter of key: \'{}\' NOT a string! Values should be string ::'.format(k))
+    return True
+
+
+def query_range(map_of_parameters):
+    list_of_result_sets = []
+    set_log_config()
+    if validate_parameters(map_of_parameters):
+        LOG.info(':::Validation of map_of_parameters done::')
+    load_and_validate_env_vars(LIST_OF_ENV_VARIABLES)
+    LOG.info("Forming the query_range request ...")
+
+    list_of_substrings = []
+    list_of_substrings.append(MAP_ENV_VARIABLES['DATA_ENDPOINT'])
+    list_of_substrings.append(QUERY_RANGE_API_VERSION)
+    url = ''.join(list_of_substrings)
+
+    try:
+        LOG.info('API request::: URL: {} '.format(url))
+        LOG.info('API request::: params: {} '.format(map_of_parameters))
+        response = requests.get(url, params=map_of_parameters)
+        response.raise_for_status() # This might raise HTTPError which is handled in except block
+    except HTTPError as http_err:
+        if response.json()['status'] == "error":
+            LOG.error("::::ERROR OCCURED::::")
+            LOG.error("::::ERROR TYPE:::: {}".format(response.json()['errorType']))
+            LOG.error("::::ERROR:::: {}".format(response.json()['error']))
+        print(f'Check logs..HTTP error occurred: {http_err}')
+    except Exception as err:
+            print(f'Check logs..Other error occurred: {err}')
+    else:
+        if response.json()['status'] == "error":
+            LOG.error("::::ERROR OCCURED!::::")
+            LOG.error("::::ERROR TYPE:::: {}".format(response.json()['errorType']))
+            LOG.error("::::ERROR:::: {}".format(response.json()['error']))
+            list_of_result_sets.append(response.json()['error'])
+            list_of_result_sets.append(dict({'error':response.json()['error'],
+                                                'errorType' : response.json()['errorType']}))
+        else:
+            results = response.json()['data']['result']
+            LOG.info('::::::::::RESULTS OF QUERY_RANGE::::::::::::: {}'.format(map_of_parameters))
+            list_of_result_sets.append(results)
+
+    return list_of_result_sets