Merge "Removes duplicate for generate_random_name"

rally/benchmark/scenarios/base.py

@@ -17,7 +17,6 @@
 import functools
 import itertools
 import random
-import string
 import time
 
 from rally.common import log as logging
@@ -64,15 +63,9 @@ def __init__(self, context=None, admin_clients=None, clients=None):
     # TODO(amaretskiy): consider about prefix part of benchmark uuid
     @classmethod
     def _generate_random_name(cls, prefix=None, length=None):
-        """Generates random name.
-
-        :param prefix: str, custom prefix for genertated name
-        :param length: int, length of autogenerated part of result name
-        :returns: str, pseudo-random name
-        """
-        rand_part = ''.join(random.choice(string.ascii_lowercase) for i
-                            in range(length or cls.RESOURCE_NAME_LENGTH))
-        return (prefix or cls.RESOURCE_NAME_PREFIX) + rand_part
+        prefix = cls.RESOURCE_NAME_PREFIX if prefix is None else prefix
+        length = length or cls.RESOURCE_NAME_LENGTH
+        return utils.generate_random_name(prefix, length)
 
     @staticmethod
     def get_by_name(name):