Update json module to jsonutils

oslo project provide jsonutils, and karbor use it in many place[1],
this PS to update the remained json module to oslo jsonutils for
consistency.

[1]: https://github.com/openstack/karbor/search?q=jsonutils&unscoped_q=jsonutils

Change-Id: I8a191a0a668a05eb1a63bb6cf45eb2624a7f848a

karbor_dashboard/checkpoints/forms.py

@@ -20,7 +20,8 @@ from horizon import exceptions
 from horizon import forms as horizon_forms
 from horizon import messages
 
-import json
+from oslo_serialization import jsonutils
+
 from karbor_dashboard.api import karbor as karborclient
 
 EMPTY_VALUES = (None, '', u'', [], (), {})
@@ -85,7 +86,7 @@ class RestoreCheckpointForm(horizon_forms.SelfHandlingForm):
 
         provider_id = str(kwargs["initial"]["provider_id"])
         provider = karborclient.provider_get(request, provider_id)
-        self.fields['provider'].initial = json.dumps(provider._info)
+        self.fields['provider'].initial = jsonutils.dumps(provider._info)
 
     @sensitive_variables('restore_target_password')
     def handle(self, request, data):
@@ -114,7 +115,7 @@ class RestoreCheckpointForm(horizon_forms.SelfHandlingForm):
                 return False
 
         try:
-            data_parameters = json.loads(data["parameters"])
+            data_parameters = jsonutils.loads(data["parameters"])
             restore_auth = {
                 "type": "password",
                 "username": target_username,

karbor_dashboard/checkpoints/utils.py

@@ -15,7 +15,7 @@
 import collections
 from collections import namedtuple
 from django.utils.translation import ugettext_lazy as _
-import json
+from oslo_serialization import jsonutils
 
 FILTER_LIST = ['provider_filter', 'plan_filter', 'date_filter']
 
@@ -46,7 +46,7 @@ PackedGraph = namedtuple('PackedGraph', ['nodes', 'adjacency'])
 
 
 def deserialize_resource_graph(serialized_resource_graph):
-    deserialized_graph = json.loads(serialized_resource_graph)
+    deserialized_graph = jsonutils.loads(serialized_resource_graph)
     packed_resource_graph = PackedGraph(nodes=deserialized_graph[0],
                                         adjacency=deserialized_graph[1])
     for sid, node in packed_resource_graph.nodes.items():

karbor_dashboard/protectionplans/forms.py

@@ -19,7 +19,8 @@ from horizon import exceptions
 from horizon import forms as horizon_forms
 from horizon import messages
 
-import json
+from oslo_serialization import jsonutils
+
 from karbor_dashboard.api import karbor as karborclient
 
 STATUS_CHOICE = [("suspended", "suspended"),
@@ -50,7 +51,7 @@ class CreateProtectionPlanForm(horizon_forms.SelfHandlingForm):
         providers = karborclient.provider_list(request)
 
         self.fields['providers'].initial = \
-            json.dumps([f._info for f in providers])
+            jsonutils.dumps([f._info for f in providers])
 
         if providers:
             result = [(e.id, e.name) for e in providers]
@@ -59,9 +60,9 @@ class CreateProtectionPlanForm(horizon_forms.SelfHandlingForm):
 
     def handle(self, request, data):
         try:
-            resources = json.loads(data["resources"])
+            resources = jsonutils.loads(data["resources"])
             types = {resource["type"] for resource in resources}
-            parameters = json.loads(data["parameters"])
+            parameters = jsonutils.loads(data["parameters"])
             parameters = {k: v for k, v in parameters.items()
                           if k.split("#")[0] in types}
             new_plan = karborclient.plan_create(
@@ -112,7 +113,7 @@ class UpdateProtectionPlanForm(horizon_forms.SelfHandlingForm):
         if name:
             data_.update({"name": name})
 
-        resources = json.loads(data["resources"])
+        resources = jsonutils.loads(data["resources"])
         if resources:
             resources_ = []
             for resource in resources:

karbor_dashboard/protectionplans/views.py

@@ -12,8 +12,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import json
-
 from django.core.urlresolvers import reverse
 from django.core.urlresolvers import reverse_lazy
 from django.utils.translation import ugettext_lazy as _
@@ -28,6 +26,7 @@ from karbor_dashboard.api import karbor as karborclient
 from karbor_dashboard.protectionplans import forms
 from karbor_dashboard.protectionplans import tables
 from karborclient.v1 import protectables
+from oslo_serialization import jsonutils
 from oslo_utils import uuidutils
 
 
@@ -212,8 +211,8 @@ class UpdateView(horizon_forms.ModalFormView):
         provider = self.get_provider_object(plan.provider_id)
         initial.update({'plan_id': self.kwargs['plan_id'],
                         'name': getattr(plan, 'name', ''),
-                        'plan': json.dumps(plan._info),
+                        'plan': jsonutils.dumps(plan._info),
-                        'provider': json.dumps(provider._info)})
+                        'provider': jsonutils.dumps(provider._info)})
         return initial