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99 lines
2.7 KiB
99 lines
2.7 KiB
4 months ago
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/*
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* Copyright 2020 The Android Open Source Project
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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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* http://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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*/
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#pragma once
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#include <algorithm>
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#include <array>
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#include <cstdint>
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#include <initializer_list>
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#include <optional>
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#include <string>
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#include "common/strings.h"
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#include "packet/custom_field_fixed_size_interface.h"
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#include "storage/serializable.h"
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namespace bluetooth {
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namespace common {
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template <std::size_t LENGTH>
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class ByteArray : public packet::CustomFieldFixedSizeInterface<ByteArray<LENGTH>>,
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public storage::Serializable<ByteArray<LENGTH>> {
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public:
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static constexpr size_t kLength = LENGTH;
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ByteArray() = default;
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ByteArray(const uint8_t (&d)[kLength]) {
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std::copy(d, d + kLength, data());
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}
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ByteArray(std::array<uint8_t, kLength> a) : bytes(std::move(a)) {}
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std::array<uint8_t, kLength> bytes = {};
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uint8_t* data() override {
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return bytes.data();
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}
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const uint8_t* data() const override {
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return bytes.data();
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}
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// operators
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bool operator<(const ByteArray& rhs) const {
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return bytes < rhs.bytes;
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}
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bool operator==(const ByteArray& rhs) const {
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return bytes == rhs.bytes;
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}
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bool operator>(const ByteArray& rhs) const {
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return (rhs < *this);
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}
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bool operator<=(const ByteArray& rhs) const {
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return !(*this > rhs);
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}
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bool operator>=(const ByteArray& rhs) const {
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return !(*this < rhs);
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}
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bool operator!=(const ByteArray& rhs) const {
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return !(*this == rhs);
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}
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// storage::Serializable methods
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std::string ToString() const override {
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return common::ToHexString(bytes.begin(), bytes.end());
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}
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static std::optional<ByteArray<kLength>> FromString(const std::string& from) {
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if (from.length() != (kLength * 2)) {
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return std::nullopt;
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}
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auto vec = common::FromHexString(from);
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if (!vec) {
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return std::nullopt;
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}
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ByteArray<kLength> byte_array = {};
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std::move(vec->data(), vec->data() + vec->size(), byte_array.data());
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return byte_array;
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}
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std::string ToLegacyConfigString() const override {
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return ToString();
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}
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static std::optional<ByteArray<kLength>> FromLegacyConfigString(const std::string& from) {
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return FromString(from);
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}
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};
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} // namespace common
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} // namespace bluetooth
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