* Copyright (c) 2024 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.
*/
#include "udmf_utils.h"
#include <random>
#include <sstream>
namespace OHOS {
namespace UDMF {
namespace UTILS {
static constexpr int ID_LEN = 32;
static constexpr int MINIMUM = 48;
static constexpr int MAXIMUM = 121;
constexpr char SPECIAL = '^';
std::vector<std::string> StrSplit(const std::string &str, const std::string &delimiter)
{
std::vector<std::string> result;
size_t start = 0;
size_t end = str.find(delimiter);
while (end != std::string::npos) {
result.push_back(str.substr(start, end - start));
start = end + delimiter.length();
end = str.find(delimiter, start);
}
result.push_back(str.substr(start));
return result;
}
std::vector<uint8_t> Random(int32_t len, int32_t minimum, int32_t maximum)
{
std::random_device randomDevice;
std::uniform_int_distribution<int> distribution(minimum, maximum);
std::vector<uint8_t> key(len);
for (int32_t i = 0; i < len; i++) {
key[i] = static_cast<uint8_t>(distribution(randomDevice));
}
return key;
}
std::string GenerateId()
{
std::vector<uint8_t> randomDevices = Random(ID_LEN, MINIMUM, MAXIMUM);
std::stringstream idStr;
for (auto &randomDevice : randomDevices) {
auto asc = randomDevice;
asc = asc >= SPECIAL ? asc + 1 : asc;
idStr << static_cast<uint8_t>(asc);
}
return idStr.str();
}
}
}
}