MetricsDiffArray.cc

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//
// MetricsDiffArray.cc
//
// Created on July 18th 2018
//
// Copyright 2018 CFM (www.cfm.fr)
//
// 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.
//

#include "MetricsDiffArray.h"


namespace MetroCollect {
    MetricsDiffArray::MetricsDiffArray() noexcept : MetricsArray() { }

    MetricsDiffArray::MetricsDiffArray(MetricsSource::SourceInterests sourceInterests) noexcept : MetricsArray(sourceInterests) { }


    const std::chrono::system_clock::time_point& MetricsDiffArray::startTime() const noexcept {
        return this->startTime_;
    }

    const std::chrono::system_clock::time_point& MetricsDiffArray::endTime() const noexcept {
        return this->endTime_;
    }

    void MetricsDiffArray::computeDiff(MetricsArray<DataValueType>& current, MetricsArray<DataValueType>& previous, double factor) noexcept {
        this->startTime_ = previous.timestamp();
        this->endTime_ = current.timestamp();
        this->timestamp_ = this->startTime_ + (this->endTime_ - this->startTime_) / 2;

        this->sources_.forEach([&](auto& source, size_t sourceIndex) {
            if ((*this->sourceInterests_)[sourceIndex].any())
                source.computeDiff((*this->sourceInterests_)[sourceIndex], this->sourceIterators_[sourceIndex].first,
                                    static_cast<typename MetricsArray<DataValueType>::ConstIterator>(current.sourceIterators_[sourceIndex].first),
                                    static_cast<typename MetricsArray<DataValueType>::ConstIterator>(previous.sourceIterators_[sourceIndex].first),
                                    factor);
        });
    }
}