Refactor Distributed Analytics project structure

[demo.git] / vnfs / DAaaS / sample-apps / m3db_promql / promql_api / prom_ql_api.py

diff --git a/vnfs/DAaaS/sample-apps/m3db_promql/promql_api/prom_ql_api.py b/vnfs/DAaaS/sample-apps/m3db_promql/promql_api/prom_ql_api.py
new file mode 100644 (file)
index 0000000..2bc102c
--- /dev/null
+++ b/vnfs/DAaaS/sample-apps/m3db_promql/promql_api/prom_ql_api.py
@@ -0,0 +1,83 @@
+from __future__ import print_function
+from os import environ
+import logging
+import sysconfig
+import requests
+from requests.exceptions import HTTPError
+
+
+#LABELS = [ 'irate(http_requests_total{code="200"}[1m])', 'collectd_cpu_percent{job="collectd", exported_instance="an11-31"}[1m]' ]
+#LABELS = ['irate(collectd_cpufreq{exported_instance="otconap7",cpufreq="1"}[2m])', 'go_info']
+API_VERSION = '/api/v1/query'
+LIST_OF_ENV_VARIABLES = ["PROMETHEUS_SERVER_URL"]
+MAP_ENV_VARIABLES = dict()
+#MAP_ENV_VARIABLES['PROMETHEUS_SERVER_URL']='http://172.25.103.1:30090' #to be deleted
+LOG = logging.getLogger(__name__)
+
+def set_log_config():
+    logging.basicConfig(format='%(asctime)s ::%(filename)s :: %(funcName)s :: %(levelname)s :: %(message)s', 
+                    datefmt='%m-%d-%Y %I:%M:%S%p',
+                    level=logging.DEBUG, 
+                    filename='promql_api.log',
+                    filemode='w')
+    LOG.info("Set the log configs.")
+
+
+def load_and_validate_env_vars(list_of_env_vars):
+    LOG.info("Loading the env variables ...")
+    for env_var in list_of_env_vars:
+        if env_var in environ:
+            LOG.info("Found env variable: {} ".format(env_var.upper()))
+            MAP_ENV_VARIABLES[env_var.upper()] = environ.get(env_var)
+        else:
+            #MAP_ENV_VARIABLES['PROMETHEUS_SERVER_URL']='http://172.25.103.1:30090' # to be deleted
+            LOG.error("Env var: {} not found ! ".format(env_var.upper()))
+            raise KeyError("Env variable: {} not found ! ".format(env_var.upper()))
+
+
+def query_m3db(LABELS):
+    """
+    Input parameters:
+        LABELS : a list of the LABELS
+    Return:
+        returns a list of  result sets of different labels
+    """
+
+    LOG.info("Forming the get request ...")
+    list_of_substrings = []
+    params_map = {}
+    list_of_result_sets = []
+    list_of_substrings.append(MAP_ENV_VARIABLES['PROMETHEUS_SERVER_URL'])
+    list_of_substrings.append(API_VERSION)
+    url = ''.join(list_of_substrings)
+    
+    for each_label in LABELS:
+        params_map['query'] = each_label
+        try:
+            LOG.info('API request::: URL: {} '.format(url))
+            LOG.info('API request::: params: {} '.format(params_map))
+            response = requests.get(url, params=params_map)
+            response.raise_for_status()
+        except HTTPError as http_err:
+            print(f'HTTP error occurred: {http_err}')
+            return None  
+        except Exception as err:
+            print(f'Other error occurred: {err}')
+            return None 
+        else:
+            
+            results = response.json()['data']['result']
+            LOG.info('::::::::::RESULTS::::::::::::: {}'.format(each_label))
+            for each_result in results:
+                LOG.info(each_result)
+            list_of_result_sets.append(results)
+    return list_of_result_sets
+
+
+# def main():
+#     set_log_config()
+#     load_and_validate_env_vars(LIST_OF_ENV_VARIABLES)
+#     query_m3db(LABELS)
+
+# if __name__ == "__main__":
+#     main()
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