mirror of
https://github.com/kidfromjupiter/nearby.git
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105 lines
4.0 KiB
C++
105 lines
4.0 KiB
C++
// Copyright 2023 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef PLATFORM_IMPLEMENTATION_PREFERENCE_MANAGER_H_
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#define PLATFORM_IMPLEMENTATION_PREFERENCE_MANAGER_H_
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#include <stdint.h>
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#include <string>
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#include <vector>
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#include "absl/strings/string_view.h"
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#include "absl/time/time.h"
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#include "absl/types/span.h"
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#include "nlohmann/json_fwd.hpp"
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#include "google/protobuf/message.h"
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namespace nearby {
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namespace api {
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// A repository for preferences. The implementations are different on different
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// platforms.
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//
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// The data in preferences has multiple types, such as int, bool, string and
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// dictionary. Using proto to describe it is a little complicated. In the
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// repository, we use json as the parser for now.
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class PreferencesManager {
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public:
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PreferencesManager() = default;
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virtual ~PreferencesManager() = default;
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// Sets values
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virtual bool Set(absl::string_view key, const nlohmann::json& value) = 0;
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virtual bool SetBoolean(absl::string_view key, bool value) = 0;
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virtual bool SetInteger(absl::string_view key, int value) = 0;
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virtual bool SetInt64(absl::string_view key, int64_t value) = 0;
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virtual bool SetString(absl::string_view key, absl::string_view value) = 0;
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virtual bool SetBooleanArray(absl::string_view key,
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absl::Span<const bool> value) = 0;
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virtual bool SetIntegerArray(absl::string_view key,
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absl::Span<const int> value) = 0;
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virtual bool SetInt64Array(absl::string_view key,
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absl::Span<const int64_t> value) = 0;
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virtual bool SetStringArray(absl::string_view key,
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absl::Span<const std::string> value) = 0;
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virtual bool SetTime(absl::string_view key, absl::Time value) = 0;
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virtual bool SetProtoMessage(absl::string_view key,
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const google::protobuf::Message& value) = 0;
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// Gets values
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virtual nlohmann::json Get(absl::string_view key,
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const nlohmann::json& default_value) const = 0;
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virtual bool GetBoolean(absl::string_view key, bool default_value) const = 0;
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virtual int GetInteger(absl::string_view key, int default_value) const = 0;
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virtual int64_t GetInt64(absl::string_view key,
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int64_t default_value) const = 0;
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virtual std::string GetString(absl::string_view key,
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const std::string& default_value) const = 0;
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virtual std::vector<bool> GetBooleanArray(
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absl::string_view key, absl::Span<const bool> default_value) const = 0;
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virtual std::vector<int> GetIntegerArray(
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absl::string_view key, absl::Span<const int> default_value) const = 0;
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virtual std::vector<int64_t> GetInt64Array(
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absl::string_view key, absl::Span<const int64_t> default_value) const = 0;
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virtual std::vector<std::string> GetStringArray(
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absl::string_view key,
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absl::Span<const std::string> default_value) const = 0;
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virtual absl::Time GetTime(absl::string_view key,
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absl::Time default_value) const = 0;
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virtual bool GetProtoMessage(absl::string_view key,
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google::protobuf::Message* value) const = 0;
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// Removes preferences
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virtual void Remove(absl::string_view key) = 0;
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// Removes all preferences that start with the given prefix.
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// Returns false on error.
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virtual bool RemoveKeyPrefix(absl::string_view prefix) = 0;
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};
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} // namespace api
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} // namespace nearby
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#endif // PLATFORM_IMPLEMENTATION_PREFERENCE_MANAGER_H_
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