1 /* 2 * Copyright (c) 2024 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef PREFERENCES_VALUE_PARCEL_H 17 #define PREFERENCES_VALUE_PARCEL_H 18 19 #include <vector> 20 #include <cstdint> 21 #include <string> 22 #include <type_traits> 23 24 #include "preferences_value.h" 25 namespace OHOS { 26 namespace NativePreferences { 27 28 class PreferencesValueParcel { 29 public: 30 static uint8_t GetTypeIndex(const PreferencesValue &value); 31 static uint32_t CalSize(PreferencesValue value); 32 static int MarshallingPreferenceValue(const PreferencesValue &value, std::vector<uint8_t> &data); 33 static std::pair<int, PreferencesValue> UnmarshallingPreferenceValue(const std::vector<uint8_t> &data); 34 35 private: 36 enum ParcelTypeIndex { 37 MONO_TYPE = 0, 38 INT_TYPE = 1, 39 LONG_TYPE = 2, 40 FLOAT_TYPE = 3, 41 DOUBLE_TYPE = 4, 42 BOOL_TYPE = 5, 43 STRING_TYPE = 6, 44 STRING_ARRAY_TYPE = 7, 45 BOOL_ARRAY_TYPE = 8, 46 DOUBLE_ARRAY_TYPE = 9, 47 UINT8_ARRAY_TYPE = 10, 48 OBJECT_TYPE = 11, 49 BIG_INT_TYPE = 12 50 }; 51 static int MarshallingBasicValue(const PreferencesValue &value, const uint8_t type, std::vector<uint8_t> &data); 52 static int MarshallingStringValue(const PreferencesValue &value, const uint8_t type, std::vector<uint8_t> &data); 53 static int MarshallingStringArrayValue(const PreferencesValue &value, const uint8_t type, 54 std::vector<uint8_t> &data); 55 static int MarshallingVecUInt8AfterType(const PreferencesValue &value, uint8_t *startAddr); 56 static int MarshallingVecBigIntAfterType(const PreferencesValue &value, uint8_t *startAddr); 57 static int MarshallingVecDoubleAfterType(const PreferencesValue &value, uint8_t *startAddr); 58 static int MarshallingVecBoolAfterType(const PreferencesValue &value, uint8_t *startAddr); 59 static int MarshallingBasicArrayValue(const PreferencesValue &value, const uint8_t type, 60 std::vector<uint8_t> &data); 61 static std::pair<int, PreferencesValue> UnmarshallingBasicValue(const uint8_t type, 62 const std::vector<uint8_t> &data); 63 static std::pair<int, PreferencesValue> UnmarshallingStringValue(const uint8_t type, 64 const std::vector<uint8_t> &data); 65 static std::pair<int, PreferencesValue> UnmarshallingStringArrayValue(const uint8_t type, 66 const std::vector<uint8_t> &data); 67 static std::pair<int, PreferencesValue> UnmarshallingVecUInt8(const std::vector<uint8_t> &data); 68 static std::pair<int, PreferencesValue> UnmarshallingVecDouble(const std::vector<uint8_t> &data); 69 static std::pair<int, PreferencesValue> UnmarshallingVecBool(const std::vector<uint8_t> &data); 70 static std::pair<int, PreferencesValue> UnmarshallingVecBigInt(const std::vector<uint8_t> &data); 71 static std::pair<int, PreferencesValue> UnmarshallingBasicArrayValue(const uint8_t type, 72 const std::vector<uint8_t> &data); 73 static int MarshallingBasicValueInner(const PreferencesValue &value, const uint8_t type, 74 std::vector<uint8_t> &data); 75 }; 76 } // namespace NativePreferences 77 } // namespace OHOS 78 #endif