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#!/usr/bin/env python
# Copyright 2017 Cisco Systems, 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.
#
from chain_clients import EXTStageClient
from chain_clients import PVPStageClient
from chain_clients import PVVPStageClient
from chain_managers import EXTStatsManager
from chain_managers import PVPStatsManager
from chain_managers import PVVPStatsManager
import chain_workers as workers
from config_plugin import ConfigPlugin
from specs import ChainType
import tor_client
class BasicFactory(object):
chain_classes = [ChainType.EXT, ChainType.PVP, ChainType.PVVP]
chain_stats_classes = {
ChainType.EXT: EXTStatsManager,
ChainType.PVP: PVPStatsManager,
ChainType.PVVP: PVVPStatsManager,
}
stage_clients_classes = {
ChainType.EXT: EXTStageClient,
ChainType.PVP: PVPStageClient,
ChainType.PVVP: PVVPStageClient,
}
def get_stats_class(self, service_chain):
CLASS = self.chain_stats_classes.get(service_chain, None)
if CLASS is None:
raise Exception("Service chain '{}' not supported.".format(service_chain))
return CLASS
def get_stage_class(self, service_chain):
CLASS = self.stage_clients_classes.get(service_chain, None)
if CLASS is None:
raise Exception("VM Client for chain '{}' not supported.".format(service_chain))
return CLASS
def get_chain_worker(self, encaps, service_chain):
return workers.BasicWorker
def get_tor_class(self, tor_type, no_tor_access):
if no_tor_access or not tor_type:
# if no TOR access is required, use basic no-op client
tor_type = 'BasicTORClient'
return getattr(tor_client, tor_type)
def get_config_plugin_class(self):
return ConfigPlugin
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