| #!/usr/bin/env python |
| # -*- encoding: utf-8 -*- |
| |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you 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. |
| |
| ''' metricstimelinehandler.py ''' |
| import traceback |
| import tornado.gen |
| import tornado.web |
| |
| from heron.common.src.python.utils.log import Log |
| from heron.tools.tracker.src.python import constants |
| from heron.tools.tracker.src.python import metricstimeline |
| from heron.tools.tracker.src.python.handlers import BaseHandler |
| |
| class MetricsTimelineHandler(BaseHandler): |
| """ |
| URL - /topologies/metricstimeline |
| Parameters: |
| - cluster (required) |
| - role - (optional) Role used to submit the topology. |
| - environ (required) |
| - topology (required) name of the requested topology |
| - component (required) |
| - metricname (required, repeated) |
| - starttime (required) |
| - endtime (required) |
| - instance (optional, repeated) |
| |
| The response JSON is a map of all the requested |
| (or if nothing is mentioned, all) components |
| of the topology, to the metrics that are reported |
| by that component. |
| """ |
| |
| # pylint: disable=attribute-defined-outside-init |
| def initialize(self, tracker): |
| """ initialize """ |
| self.tracker = tracker |
| |
| @tornado.gen.coroutine |
| def get(self): |
| """ get method """ |
| try: |
| cluster = self.get_argument_cluster() |
| role = self.get_argument_role() |
| environ = self.get_argument_environ() |
| topology_name = self.get_argument_topology() |
| component = self.get_argument_component() |
| metric_names = self.get_required_arguments_metricnames() |
| start_time = self.get_argument_starttime() |
| end_time = self.get_argument_endtime() |
| self.validateInterval(start_time, end_time) |
| instances = self.get_arguments(constants.PARAM_INSTANCE) |
| |
| topology = self.tracker.getTopologyByClusterRoleEnvironAndName( |
| cluster, role, environ, topology_name) |
| metrics = yield tornado.gen.Task(metricstimeline.getMetricsTimeline, |
| topology.tmaster, component, metric_names, |
| instances, int(start_time), int(end_time)) |
| self.write_success_response(metrics) |
| except Exception as e: |
| Log.debug(traceback.format_exc()) |
| self.write_error_response(e) |