+# -*- coding: utf-8 -*-
+##
+# Copyright 2018 University of Bristol - High Performance Networks Research
+# Group
+# All Rights Reserved.
+#
+# Contributors: Anderson Bravalheri, Dimitrios Gkounis, Abubakar Siddique
+# Muqaddas, Navdeep Uniyal, Reza Nejabati and Dimitra Simeonidou
+#
+# 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.
+#
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact with: <highperformance-networks@bristol.ac.uk>
+#
+# Neither the name of the University of Bristol nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# This work has been performed in the context of DCMS UK 5G Testbeds
+# & Trials Programme and in the framework of the Metro-Haul project -
+# funded by the European Commission under Grant number 761727 through the
+# Horizon 2020 and 5G-PPP programmes.
+##
+
+"""In the case any error happens when trying to initiate the WIM Connector,
+we need a replacement for it, that will throw an error every time we try to
+execute any action
+"""
+import json
+from .wimconn import WimConnectorError
+
+
+class FailingConnector(object):
+ """Placeholder for a connector whose incitation failed,
+ This place holder will just raise an error every time an action is needed
+ from the connector.
+
+ This way we can make sure that all the other parts of the program will work
+ but the user will have all the information available to fix the problem.
+ """
+ def __init__(self, error_msg):
+ self.error_msg = error_msg
+
+ def check_credentials(self):
+ raise WimConnectorError('Impossible to use WIM:\n' + self.error_msg)
+
+ def get_connectivity_service_status(self, service_uuid, _conn_info=None):
+ raise WimConnectorError('Impossible to retrieve status for {}\n\n{}'
+ .format(service_uuid, self.error_msg))
+
+ def create_connectivity_service(self, service_uuid, *args, **kwargs):
+ raise WimConnectorError('Impossible to connect {}.\n{}\n{}\n{}'
+ .format(service_uuid, self.error_msg,
+ json.dumps(args, indent=4),
+ json.dumps(kwargs, indent=4)))
+
+ def delete_connectivity_service(self, service_uuid, _conn_info=None):
+ raise WimConnectorError('Impossible to disconnect {}\n\n{}'
+ .format(service_uuid, self.error_msg))
+
+ def edit_connectivity_service(self, service_uuid, *args, **kwargs):
+ raise WimConnectorError('Impossible to change connection {}.\n{}\n'
+ '{}\n{}'
+ .format(service_uuid, self.error_msg,
+ json.dumps(args, indent=4),
+ json.dumps(kwargs, indent=4)))
+
+ def clear_all_connectivity_services(self):
+ raise WimConnectorError('Impossible to use WIM:\n' + self.error_msg)
+
+ def get_all_active_connectivity_services(self):
+ raise WimConnectorError('Impossible to use WIM:\n' + self.error_msg)