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# Copyright (c) 2016-2017 Intel Corporation
#
# 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.
import logging
from yardstick.network_services.nfvi.resource import ResourceProfile
from yardstick.network_services.utils import get_nsb_option
LOG = logging.getLogger(__name__)
class Collector(object):
"""Class that handles dictionary of results in yardstick-plot format."""
def __init__(self, vnfs, contexts_nodes, timeout=3600):
super(Collector, self).__init__()
self.vnfs = vnfs
self.nodes = contexts_nodes
self.bin_path = get_nsb_option('bin_path', '')
self.resource_profiles = {}
for ctx_name, nodes in ((ctx_name, nodes) for (ctx_name, nodes)
in contexts_nodes.items() if nodes):
for node in (node for node in nodes
if node and node.get('collectd')):
name = ".".join([node['name'], ctx_name])
self.resource_profiles.update(
{name: ResourceProfile.make_from_node(node, timeout)})
def start(self):
for resource in self.resource_profiles.values():
resource.initiate_systemagent(self.bin_path)
resource.start()
resource.amqp_process_for_nfvi_kpi()
for vnf in self.vnfs:
vnf.start_collect()
def stop(self):
for vnf in self.vnfs:
vnf.stop_collect()
for resource in self.resource_profiles.values():
resource.stop()
def get_kpi(self):
"""Returns dictionary of results in yardstick-plot format
:return: (dict) dictionary of kpis collected from the VNFs;
the keys are the names of the VNFs.
"""
results = {}
for vnf in self.vnfs:
# Result example:
# {"VNF1: { "tput" : [1000, 999] }, "VNF2": { "latency": 100 }}
LOG.debug("collect KPI for vnf %s", vnf.name)
results[vnf.name] = vnf.collect_kpi()
for node_name, resource in self.resource_profiles.items():
LOG.debug("collect KPI for nfvi_node %s", node_name)
results[node_name] = {"core": resource.amqp_collect_nfvi_kpi()}
LOG.debug("%s collect KPIs %s", node_name, results[node_name]['core'])
return results
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