chromium/components/metrics/metrics_service_observer.h

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_METRICS_METRICS_SERVICE_OBSERVER_H_
#define COMPONENTS_METRICS_METRICS_SERVICE_OBSERVER_H_

#include <memory>
#include <optional>
#include <string>
#include <string_view>
#include <vector>

#include "base/callback_list.h"
#include "base/containers/flat_map.h"
#include "base/files/file_path.h"
#include "components/metrics/metrics_logs_event_manager.h"

namespace metrics {

// Observes logs generated by a metrics collection system (UMA and UKM) and
// stores them in-memory. This class also provides a way to export the logs in a
// JSON format, which includes metadata, proto data, as well as the events
// describing the lifecycle of the logs.
class MetricsServiceObserver : public MetricsLogsEventManager::Observer { … };

}  // namespace metrics

#endif  // COMPONENTS_METRICS_METRICS_SERVICE_OBSERVER_H_