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// Copyright 2021 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_STRUCTURED_PROJECT_VALIDATOR_H_
#define COMPONENTS_METRICS_STRUCTURED_PROJECT_VALIDATOR_H_
#include <cstdint>
#include <optional>
#include <string>
#include <string_view>
#include "components/metrics/structured/enums.h"
#include "components/metrics/structured/event_validator.h"
#include "third_party/metrics_proto/structured_data.pb.h"
namespace metrics::structured {
using EventType = StructuredEventProto_EventType;
// Interface to be implemented by codegen for every project to validate
// messages received by the structured metric service.
class ProjectValidator {
public:
// Should not be copied or moved.
ProjectValidator(const ProjectValidator&) = delete;
ProjectValidator& operator=(const ProjectValidator& other) = delete;
virtual ~ProjectValidator();
// Returns the event validator if |event_name| is a valid event for this
// project.
const EventValidator* GetEventValidator(std::string_view event_name) const;
std::optional<std::string_view> GetEventName(uint64_t event_name_hash) const;
uint64_t project_hash() const { return project_hash_; }
IdType id_type() const { return id_type_; }
IdScope id_scope() const { return id_scope_; }
EventType event_type() const { return event_type_; }
int key_rotation_period() const { return key_rotation_period_; }
protected:
// Should not be constructed directly.
ProjectValidator(uint64_t project_hash,
IdType id_type,
IdScope id_scope,
EventType event_type,
int key_rotation_period);
std::unordered_map<std::string_view, std::unique_ptr<EventValidator>>
event_validators_;
std::unordered_map<uint64_t, std::string_view> event_name_map_;
private:
const uint64_t project_hash_;
const IdType id_type_;
const IdScope id_scope_;
const EventType event_type_;
const int key_rotation_period_;
};
} // namespace metrics::structured
#endif // COMPONENTS_METRICS_STRUCTURED_PROJECT_VALIDATOR_H_
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