OpenStack Networking (Neutron)
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 Nicira Networks, Inc
# All Rights Reserved.
#
# 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.
# @author: Somik Behera, Nicira Networks, Inc.
"""
Quantum's Manager class is responsible for parsing a config file
and instantiating the correct plugin that concretely implement
quantum_plugin_base class
The caller should make sure that QuantumManager is a singleton.
"""
import gettext
gettext.install('quantum', unicode=1)
from common import utils
from quantum_plugin_base import QuantumPluginBase
CONFIG_FILE = "quantum/plugins.ini"
class QuantumManager(object):
def __init__(self, config=CONFIG_FILE):
self.configuration_file = CONFIG_FILE
plugin_location = utils.getPluginFromConfig(CONFIG_FILE)
print "PLUGIN LOCATION:%s" % plugin_location
plugin_klass = utils.import_class(plugin_location)
if not issubclass(plugin_klass, QuantumPluginBase):
raise Exception("Configured Quantum plug-in " \
"didn't pass compatibility test")
else:
print("Successfully imported Quantum plug-in." \
"All compatibility tests passed\n")
self.plugin = plugin_klass()
def get_manager(self):
return self.plugin
# TODO(somik): rmove the main class
# Added for temporary testing purposes
def main():
manager = QuantumManager()
myManager = manager.get_manager()
myManager.get_all_networks("tesst")
#print("is a plugin")
# Standard boilerplate to call the main() function.
if __name__ == '__main__':
main()