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#!/usr/bin/env python
# Copyright 2016 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 log import LOG
from service_chain import ServiceChain
import traceback
from traffic_client import TrafficClient
class ChainRunner(object):
"""Run selected chain, collect results and analyse them."""
def __init__(self, config, clients, cred, specs, factory, notifier=None):
self.config = config
self.clients = clients
self.specs = specs
self.factory = factory
self.chain_name = self.config.service_chain
try:
TORClass = factory.get_tor_class(self.config.tor.type, self.config.no_tor_access)
except AttributeError:
raise Exception("Requested TOR class '{}' was not found.".format(self.config.tor.type))
self.clients['tor'] = TORClass(self.config.tor.switches)
self.clients['traffic'] = TrafficClient(config, notifier)
self.chain = ServiceChain(config, clients, cred, specs, factory, notifier)
LOG.info('ChainRunner initialized.')
def run(self):
"""
Run a chain, collect and analyse results.
:return: dictionary
"""
self.clients['traffic'].start_traffic_generator()
self.clients['traffic'].set_macs()
return self.chain.run()
def close(self):
try:
if not self.config.no_cleanup:
LOG.info('Cleaning up...')
else:
LOG.info('Clean up skipped.')
for client in ['traffic', 'tor']:
try:
self.clients[client].close()
except Exception as e:
traceback.print_exc()
LOG.error(e)
self.chain.close()
except Exception:
traceback.print_exc()
LOG.error('Cleanup not finished.')
def get_version(self):
versions = {
'Traffic Generator': self.clients['traffic'].get_version(),
'TOR': self.clients['tor'].get_version(),
}
versions.update(self.chain.get_version())
return versions
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