xref: /base/sensors/miscdevice/utils/common/include/json_parser.h

/*
 * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
 * 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
 *
 *     http://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 MISCDEVICE_JSON_PARSER_H
#define MISCDEVICE_JSON_PARSER_H

#include <cstdint>
#include <string>
#include <vector>

#include "cJSON.h"

#include "raw_file_descriptor.h"

namespace OHOS {
namespace Sensors {
class JsonParser {
public:
    explicit JsonParser(const std::string &filePath);
    explicit JsonParser(const RawFileDescriptor &rawFd);
    ~JsonParser();
    int32_t ParseJsonArray(cJSON *json, const std::string &key, std::vector<std::string> &vals) const;
    int32_t ParseJsonArray(const std::string &key, std::vector<std::string> &vals) const;
    bool HasObjectItem(cJSON *json, const std::string &key) const;
    bool HasObjectItem(const std::string &key) const;
    cJSON *GetObjectItem(cJSON *json, const std::string &key) const;
    cJSON *GetObjectItem(const std::string &key) const;
    bool IsArray(cJSON *json) const;
    int32_t GetArraySize(cJSON *json) const;
    cJSON *GetArrayItem(cJSON *json, int32_t index) const;
    int32_t GetIntValue(cJSON *json) const;
    double GetDoubleValue(cJSON *json) const;
    std::string GetStringValue(cJSON *json) const;

private:
    cJSON *cJson_ = nullptr;
};
} // namespace Sensors
} // namespace OHOS
#endif // MISCDEVICE_JSON_PARSER_H