from http import HTTPStatus
from time import time, sleep
from copy import deepcopy
+from base64 import b64decode
__author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
self.client = None
self.db = None
- def db_connect(self, config):
+ def db_connect(self, config, target_version=None):
"""
Connect to database
:param config: Configuration of database
+ :param target_version: if provided it checks if database contains required version, raising exception otherwise.
:return: None or raises DbException on error
"""
try:
now = time()
while True:
try:
- self.db.users.find_one({"username": "admin"})
+ version_data = self.get_one("admin", {"_id": "version"}, fail_on_empty=False, fail_on_more=True)
+ # check database status is ok
+ if version_data and version_data.get("status") != 'ENABLED':
+ raise DbException("Wrong database status '{}'".format(version_data.get("status")),
+ http_code=HTTPStatus.INTERNAL_SERVER_ERROR)
+ # check version
+ db_version = None if not version_data else version_data.get("version")
+ if target_version and target_version != db_version:
+ raise DbException("Invalid database version {}. Expected {}".format(db_version, target_version))
+ # get serial
+ if version_data and version_data.get("serial"):
+ self.set_secret_key(b64decode(version_data["serial"]))
+ self.logger.info("Connected to database {} version {}".format(config["name"], db_version))
return
except errors.ConnectionFailure as e:
if time() - now >= self.conn_initial_timout: