| #!/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. |
| |
| """ Singleton class which exposes a simple globally available counter for heron jobs. |
| |
| It serves the same functionality as GlobalMetrics.java |
| """ |
| import threading |
| from heronpy.api.metrics import MultiCountMetric |
| |
| metricsContainer = MultiCountMetric() |
| registered = False |
| root_name = '__auto__' |
| |
| lock = threading.Lock() |
| |
| def incr(key, to_add=1): |
| metricsContainer.incr(key, to_add) |
| |
| def safe_incr(key, to_add=1): |
| with lock: |
| metricsContainer.incr(key, to_add) |
| |
| def init(metrics_collector, metrics_bucket): |
| with lock: |
| global registered |
| if not registered: |
| metrics_collector.register_metric(root_name, metricsContainer, metrics_bucket) |
| registered = True |