| /** |
| * 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. |
| */ |
| |
| #ifndef HERON_API_METRIC_MULTI_COUNT_METRIC_H_ |
| #define HERON_API_METRIC_MULTI_COUNT_METRIC_H_ |
| |
| #include <iostream> |
| #include <map> |
| #include <memory> |
| #include <string> |
| |
| #include "metric/imetric.h" |
| #include "metric/imulti-metric.h" |
| #include "metric/count-metric.h" |
| |
| namespace heron { |
| namespace api { |
| namespace metric { |
| |
| /** |
| * Interface for a metric that can be tracked |
| */ |
| class MultiCountMetric : public IMultiMetric { |
| public: |
| MultiCountMetric() { } |
| virtual ~MultiCountMetric() { } |
| std::shared_ptr<CountMetric> scope(const std::string& key) { |
| auto iter = metrics_.begin(); |
| if (iter == metrics_.end()) { |
| std::shared_ptr<CountMetric> m(new CountMetric); |
| metrics_[key] = m; |
| return m; |
| } else { |
| return iter->second; |
| } |
| } |
| virtual void getValueAndReset(std::map<std::string, std::string>& retval) { |
| for (auto& kv : metrics_) { |
| retval[kv.first] = kv.second->getValueAndReset(); |
| } |
| } |
| private: |
| std::map<std::string, std::shared_ptr<CountMetric>> metrics_; |
| }; |
| |
| } // namespace metric |
| } // namespace api |
| } // namespace heron |
| |
| #endif // HERON_API_METRIC_MULTI_COUNT_METRIC_H_ |