Files
nearby/internal/flags/flag_reader.h
T
hai007 4f6adb3771 Fix typo
PiperOrigin-RevId: 545787602
2023-07-05 14:31:49 -07:00

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C++

// Copyright 2023 Google LLC
//
// 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
//
// https://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 THIRD_PARTY_NEARBY_INTERNAL_FLAGS_FLAG_READER_H_
#define THIRD_PARTY_NEARBY_INTERNAL_FLAGS_FLAG_READER_H_
#include <cstdint>
#include <string>
#include "absl/strings/string_view.h"
#include "internal/flags/flag.h"
namespace nearby {
namespace flags {
// Allows caller to get flag values form backend system.
// The caller could implement flexible control on Nearby SDK in granularity,
// such as feature, configuration etc. Default value will be returned if no
// flag-supported backend.
class FlagReader {
public:
virtual ~FlagReader() = default;
// Reads flag with boolean value.
virtual bool GetBoolFlag(const Flag<bool>& flag) = 0;
// Reads flag with int64_t value.
virtual int64_t GetInt64Flag(const Flag<int64_t>& flag) = 0;
// Reads flag with double value.
virtual double GetDoubleFlag(const Flag<double>& flag) = 0;
// Reads flag with string value.
virtual std::string GetStringFlag(const Flag<absl::string_view>& flag) = 0;
};
} // namespace flags
} // namespace nearby
#endif // THIRD_PARTY_NEARBY_INTERNAL_FLAGS_FLAG_READER_H_