Register Manilaclient exceptions in Horizon

Add Manilaclient's NotFound exception to 'NOT_FOUND' exception family
in Horizon. Without it we get error 500 from Horizon on pages with
resource tables where something is being deleted and then not found.
Do the same for "recoverable" and "unauthorized" types too.

Also, remove redundant, already registered exceptions related to other
projects from "manila_ui.exceptions" module.

Change-Id: I1dffec243feb12783dceb705ff6191dbcc8b3aa5
Closes-Bug: #1481902
Closes-Bug: #1579114

manila_ui/enabled/_90_manila_project_shares.py

@@ -1,6 +1,29 @@
+# Copyright 2016 Mirantis Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, 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.
+
+from manila_ui import exceptions
+
 PANEL_DASHBOARD = 'project'
 PANEL_GROUP = 'compute'
 PANEL = 'shares'
 ADD_PANEL = 'manila_ui.dashboards.project.shares.panel.Shares'
+
 # ADD_INSTALLED_APPS enables using html templates from within the plugin
 ADD_INSTALLED_APPS = ['manila_ui.dashboards.project']
+
+ADD_EXCEPTIONS = {
+    'recoverable': exceptions.RECOVERABLE,
+    'not_found': exceptions.NOT_FOUND,
+    'unauthorized': exceptions.UNAUTHORIZED,
+}

manila_ui/exceptions.py

@@ -16,56 +16,20 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from cinderclient import exceptions as cinderclient
-from glanceclient.common import exceptions as glanceclient
-from heatclient import exc as heatclient
-from keystoneclient import exceptions as keystoneclient
 from manilaclient import exceptions as manilaclient
-from neutronclient.common import exceptions as neutronclient
-from novaclient import exceptions as novaclient
-from requests import exceptions as requests
-from swiftclient import client as swiftclient
 
 
 UNAUTHORIZED = (
-    keystoneclient.Unauthorized,
-    cinderclient.Unauthorized,
-    novaclient.Unauthorized,
-    glanceclient.Unauthorized,
+    manilaclient.AuthorizationFailure,
     manilaclient.Unauthorized,
-    neutronclient.Unauthorized,
-    heatclient.HTTPUnauthorized,
 )
 
 
 NOT_FOUND = (
-    keystoneclient.NotFound,
-    cinderclient.NotFound,
-    novaclient.NotFound,
-    glanceclient.NotFound,
     manilaclient.NotFound,
-    neutronclient.NotFound,
-    heatclient.HTTPNotFound,
 )
 
 
-# NOTE(gabriel): This is very broad, and may need to be dialed in.
 RECOVERABLE = (
-    keystoneclient.ClientException,
-    # AuthorizationFailure is raised when Keystone is "unavailable".
-    keystoneclient.AuthorizationFailure,
-    keystoneclient.Forbidden,
-    cinderclient.ClientException,
-    cinderclient.ConnectionError,
-    cinderclient.Forbidden,
-    novaclient.ClientException,
-    novaclient.Forbidden,
-    glanceclient.ClientException,
     manilaclient.ClientException,
-    neutronclient.Forbidden,
-    neutronclient.NeutronClientException,
-    swiftclient.ClientException,
-    heatclient.HTTPForbidden,
-    heatclient.HTTPException,
-    requests.RequestException,
 )