make use of functest_utils.get_parameter_from_yaml

JIRA: FUNCTEST-463

Change-Id: I1d54a65c5bfa2542f2fd3a2e408967641e6e4ac9
Signed-off-by: SerenaFeng <feng.xiaowei@zte.com.cn>
(cherry picked from commit 55d301a2622ff5b63d431b9272caa68224d53843)

3 files changed, 16 insertions, 17 deletions

diff --git a/utils/functest_utils.py b/utils/functest_utils.py
index 644ad1a1b..c6141d09c 100644
--- a/utils/functest_utils.py
+++ b/utils/functest_utils.py
@@ -152,9 +152,7 @@ def get_db_url():
     """
     Returns DB URL
     """
-    functest_yaml = get_functest_yaml()
-    db_url = functest_yaml.get("results").get("test_db_url")
-    return db_url
+    return get_functest_config('results.test_db_url')
 
 
 def logger_test_results(project, case_name, status, details):
@@ -331,10 +329,8 @@ def get_deployment_dir():
     """
     Returns current Rally deployment directory
     """
-    functest_yaml = get_functest_yaml()
-    deployment_name = functest_yaml.get("rally").get("deployment_name")
-    rally_dir = functest_yaml.get("general").get("directories").get(
-        "dir_rally_inst")
+    deployment_name = get_functest_config('rally.deployment_name')
+    rally_dir = get_functest_config('general.directories.dir_rally_inst')
     cmd = ("rally deployment list | awk '/" + deployment_name +
            "/ {print $2}'")
     p = subprocess.Popen(cmd, shell=True,
@@ -366,18 +362,16 @@ def get_criteria_by_test(testname):
 #               YAML UTILS
 #
 # -----------------------------------------------------------
-def get_parameter_from_yaml(parameter, file=None):
+def get_parameter_from_yaml(parameter, file):
     """
-    Returns the value of a given parameter in config_functest.yaml
+    Returns the value of a given parameter in file.yaml
     parameter must be given in string format with dots
     Example: general.openstack.image_name
     """
-    if file is None:
-        file = os.environ["CONFIG_FUNCTEST_YAML"]
     with open(file) as f:
-        functest_yaml = yaml.safe_load(f)
+        file_yaml = yaml.safe_load(f)
     f.close()
-    value = functest_yaml
+    value = file_yaml
     for element in parameter.split("."):
         value = value.get(element)
         if value is None:
@@ -386,6 +380,11 @@ def get_parameter_from_yaml(parameter, file=None):
     return value
 
 
+def get_functest_config(parameter):
+    yaml_ = os.environ["CONFIG_FUNCTEST_YAML"]
+    return get_parameter_from_yaml(parameter, yaml_)
+
+
 def check_success_rate(case_name, success_rate):
     success_rate = float(success_rate)
     criteria = get_criteria_by_test(case_name)
diff --git a/utils/openstack_clean.py b/utils/openstack_clean.py
index ef26be1f3..bf582dea2 100755
--- a/utils/openstack_clean.py
+++ b/utils/openstack_clean.py
@@ -29,8 +29,8 @@ import yaml
 
 logger = ft_logger.Logger("openstack_clean").getLogger()
 
-OS_SNAPSHOT_FILE = ft_utils.get_parameter_from_yaml(
-    "general.openstack.snapshot_file")
+OS_SNAPSHOT_FILE = \
+    ft_utils.get_functest_config("general.openstack.snapshot_file")
 
 
 def separator():
diff --git a/utils/openstack_snapshot.py b/utils/openstack_snapshot.py
index 236cf74e5..560cadbdb 100755
--- a/utils/openstack_snapshot.py
+++ b/utils/openstack_snapshot.py
@@ -29,8 +29,8 @@ import yaml
 logger = ft_logger.Logger("openstack_snapshot").getLogger()
 
 
-OS_SNAPSHOT_FILE = ft_utils.get_parameter_from_yaml(
-    "general.openstack.snapshot_file")
+OS_SNAPSHOT_FILE = \
+    ft_utils.get_functest_config("general.openstack.snapshot_file")
 
 
 def separator():