Update json module to jsonutils

1. oslo project provide jsonutils, and barbican use it in many place[1],
this PS to update the remained json moudule to oslo jsonutils for
consistency.
2. update the primary jsonutils to use alias json

[1]: https://github.com/openstack/barbican/search?utf8=%E2%9C%93&q=jsonutils&type=

Change-Id: I958a711db17bb1aa86fc4cd23c00cec185b84ab2

HACKING.rst

@@ -1,5 +1,5 @@
 Barbican Style Commandments
-============================
+===========================
 
 - Step 1: Read the OpenStack Style Commandments
   https://docs.openstack.org/hacking/latest/
@@ -7,7 +7,7 @@ Barbican Style Commandments
 
 
 Barbican Specific Commandments
--------------------------------
+------------------------------
 
 - [B310] Check for improper use of logging format arguments.
 - [B311] Use assertIsNone(...) instead of assertEqual(None, ...).

barbican/api/hooks.py

@@ -15,7 +15,7 @@
 import pecan
 import webob
 
-from oslo_serialization import jsonutils
+from oslo_serialization import jsonutils as json
 
 try:
     import newrelic.agent
@@ -29,7 +29,7 @@ from barbican.model import repositories
 class JSONErrorHook(pecan.hooks.PecanHook):
     def on_error(self, state, exc):
         if isinstance(exc, webob.exc.HTTPError):
-            exc.body = jsonutils.dump_as_bytes({
+            exc.body = json.dump_as_bytes({
                 'code': exc.status_int,
                 'title': exc.title,
                 'description': exc.detail

barbican/cmd/pkcs11_kek_rewrap.py

@@ -11,12 +11,13 @@
 #  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 #  License for the specific language governing permissions and limitations
 #  under the License.
+
 import argparse
 import base64
-import json
 import traceback
 
 from oslo_db.sqlalchemy import session
+from oslo_serialization import jsonutils as json
 from sqlalchemy import orm
 from sqlalchemy.orm import scoping
 

barbican/cmd/pkcs11_migrate_kek_signatures.py

@@ -11,13 +11,14 @@
 #  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 #  License for the specific language governing permissions and limitations
 #  under the License.
+
 import argparse
 import base64
-import json
 import six
 import traceback
 
 from oslo_db.sqlalchemy import session
+from oslo_serialization import jsonutils as json
 from sqlalchemy import orm
 from sqlalchemy.orm import scoping
 

barbican/objects/fields.py

@@ -11,8 +11,8 @@
 #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 #    License for the specific language governing permissions and limitations
 #    under the License.
-import json
 
+from oslo_serialization import jsonutils as json
 from oslo_versionedobjects import fields
 import six
 

barbican/tests/api/controllers/test_secretmeta.py

@@ -12,9 +12,11 @@
 # implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-import json
-import mock
+
 import os
+
+import mock
+from oslo_serialization import jsonutils as json
 from oslo_utils import uuidutils
 
 from barbican.tests import utils

bin/demo_requests.py

@@ -21,11 +21,12 @@ required including the Barbican Python client. Note that this script is not
 intended to replace DevStack or Tempest style testing.
 """
 
-import json
 import logging
 import requests
 import sys
 
+from oslo_serialization import jsonutils as json
+
 
 LOG = logging.getLogger(__name__)
 LOG.setLevel(logging.DEBUG)

functionaltests/api/v1/behaviors/secretmeta_behaviors.py

@@ -13,7 +13,8 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 """
-import json
+
+from oslo_serialization import jsonutils as json
 
 from functionaltests.api.v1.behaviors import base_behaviors
 

functionaltests/api/v1/functional/test_orders.py

@@ -12,10 +12,11 @@
 # implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from oslo_serialization import jsonutils
+
 import sys
 import time
 
+from oslo_serialization import jsonutils as json
 import testtools
 from testtools import testcase
 
@@ -296,7 +297,7 @@ class OrdersTestCase(base.TestCase):
         resp, order_ref = self.behaviors.create_order(test_model)
 
         # Make sure we actually get a message back
-        error_msg = jsonutils.loads(resp.content).get('title')
+        error_msg = json.loads(resp.content).get('title')
 
         self.assertEqual(400, resp.status_code)
         self.assertIsNotNone(error_msg)

functionaltests/api/v1/functional/test_secretmeta.py

@@ -12,7 +12,9 @@
 # implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from oslo_serialization import jsonutils
+
+from oslo_serialization import jsonutils as json
+from oslo_utils import uuidutils
 from testtools import testcase
 
 from barbican.tests import utils
@@ -20,7 +22,6 @@ from functionaltests.api import base
 from functionaltests.api.v1.behaviors import secret_behaviors
 from functionaltests.api.v1.behaviors import secretmeta_behaviors
 from functionaltests.api.v1.models import secret_models
-from oslo_utils import uuidutils
 
 
 @utils.parameterized_test_case
@@ -107,7 +108,7 @@ class SecretMetadataTestCase(base.TestCase):
 
         get_resp = self.behaviors.get_metadata(secret_ref)
         self.assertEqual(200, get_resp.status_code)
-        self.assertEqual(jsonutils.loads(get_resp.content),
+        self.assertEqual(json.loads(get_resp.content),
                          self.valid_metadata)
 
     @testcase.attr('negative')
@@ -171,7 +172,7 @@ class SecretMetadataTestCase(base.TestCase):
         get_resp = self.behaviors.get_metadatum(secret_ref,
                                                 self.valid_metadatum_key)
         self.assertEqual(200, get_resp.status_code)
-        self.assertEqual(jsonutils.loads(get_resp.content),
+        self.assertEqual(json.loads(get_resp.content),
                          self.valid_metadatum)
 
     @testcase.attr('negative')

functionaltests/api/v1/functional/test_secrets.py

@@ -15,7 +15,7 @@
 
 import datetime
 from oslo_serialization import base64 as oslo_base64
-from oslo_serialization import jsonutils
+from oslo_serialization import jsonutils as json
 import six
 import sys
 import testtools
@@ -512,7 +512,7 @@ class SecretsTestCase(base.TestCase):
         # first, ensure that the return code is 400
         self.assertEqual(400, resp.status_code)
 
-        resp_dict = jsonutils.loads(resp.content)
+        resp_dict = json.loads(resp.content)
 
         self.assertIn(
             "Provided object does not match schema 'Secret': "

functionaltests/api/v1/models/base_models.py

@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 """
 import logging
-from oslo_serialization import jsonutils
+from oslo_serialization import jsonutils as json
 
 LOG = logging.getLogger(__name__)
 
@@ -34,7 +34,7 @@ class BaseModel(object):
 
         :return: A string of JSON containing the fields in this object
         """
-        return jsonutils.dump_as_bytes(self.obj_to_dict())
+        return json.dump_as_bytes(self.obj_to_dict())
 
     def obj_to_dict(self):
         """Create a dict of the values for this model object.
@@ -74,7 +74,7 @@ class BaseModel(object):
         :return: a secret object
         """
         try:
-            json_dict = jsonutils.loads(serialized_str)
+            json_dict = json.loads(serialized_str)
             return cls.dict_to_obj(json_dict)
         except TypeError as e:
             LOG.error('Couldn\'t deserialize input: %s\n Because: %s',