51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
#include <ArduinoJson.h>
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#include <vector>
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#include <functional>
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#include <algorithm>
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#ifndef _JSON_HELPERS_H
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#define _JSON_HELPERS_H
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class JsonHelpers {
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public:
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template<typename T>
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static void copyFrom(JsonArray arr, std::vector<T> vec) {
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for (typename std::vector<T>::const_iterator it = vec.begin(); it != vec.end(); ++it) {
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arr.add(*it);
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}
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}
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template<typename T>
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static void copyTo(JsonArray arr, std::vector<T> vec) {
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for (size_t i = 0; i < arr.size(); ++i) {
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JsonVariant val = arr[i];
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vec.push_back(val.as<T>());
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}
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}
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template<typename T, typename StrType>
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static std::vector<T> jsonArrToVector(JsonArray& arr, std::function<T (const StrType)> converter, const bool unique = true) {
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std::vector<T> vec;
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for (size_t i = 0; i < arr.size(); ++i) {
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StrType strVal = arr[i];
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T convertedVal = converter(strVal);
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// inefficient, but everything using this is tiny, so doesn't matter
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if (!unique || std::find(vec.begin(), vec.end(), convertedVal) == vec.end()) {
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vec.push_back(convertedVal);
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}
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}
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return vec;
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}
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template<typename T, typename StrType>
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static void vectorToJsonArr(JsonArray& arr, const std::vector<T>& vec, std::function<StrType (const T&)> converter) {
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for (typename std::vector<T>::const_iterator it = vec.begin(); it != vec.end(); ++it) {
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arr.add(converter(*it));
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}
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}
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};
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#endif |