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[FEAT]: Check if arrays have nulls or not in jni #128

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[FEAT]: Check if arrays have nulls or not in jni #128

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56299dd
feat: update jArrayToVector function with new acceptNullValues element
Doominika Mar 12, 2026
2562b07
feat: update vectorTojArray function with new acceptNullValues element
Doominika Mar 12, 2026
1723bbd
feat: update array parsing functions with new null-check
Doominika Mar 12, 2026
9c58ab1
feat: use array parsing functions in streamApiLow jni
Doominika Mar 12, 2026
cb472b0
feat: disallow null values in the java array in streamApiLow
Doominika Mar 12, 2026
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27 changes: 22 additions & 5 deletions jni-wrappers/privmx-endpoint/includes/privmx/endpoint/wrapper/parsers/parser.h
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Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,10 @@ privmx::endpoint::core::PagingQuery parsePagingQuery(JniContextUtils &ctx, jobje


// java -> c++
template<typename T>
std::vector<T> jArrayToVector(JniContextUtils &ctx, jobjectArray jArray,
std::function<T(JniContextUtils &, jobject)> fun, bool acceptNullValues);

template<typename T>
std::vector<T> jArrayToVector(JniContextUtils &ctx, jobjectArray jArray,
std::function<T(JniContextUtils &, jobject)> fun);
Expand All @@ -64,7 +68,12 @@ std::string jobject2string(JniContextUtils &ctx, jobject jString);

// c++ -> java
template<typename T, typename F>
jobject vectorTojArray(JniContextUtils &ctx, const std::vector<T> &vector,F fun){
jobject vectorTojArray(
JniContextUtils &ctx,
const std::vector<T> &vector,
F fun,
bool acceptNullValues
) {
jclass arrayListCls = ctx->FindClass("java/util/ArrayList");
jmethodID initMID = ctx->GetMethodID(arrayListCls, "<init>", "()V");
jmethodID addToListMID = ctx->GetMethodID(arrayListCls, "add", "(Ljava/lang/Object;)Z");
Expand All @@ -73,16 +82,24 @@ jobject vectorTojArray(JniContextUtils &ctx, const std::vector<T> &vector,F fun)

for (const auto &item: vector) {
jobject jItem = fun(ctx, item);
if (!acceptNullValues) {
if (ctx.nullCheck(jItem, "Array element")) {return nullptr;}
}

ctx->CallBooleanMethod(listObj, addToListMID, jItem);
}

return listObj;
}

template<typename T, typename F>
jobject pagingList2Java(JniContextUtils &ctx, privmx::endpoint::core::PagingList<T> pagingList,F fun);
jobject vectorTojArray(JniContextUtils &ctx, const std::vector<T> &vector, F fun) {
return vectorTojArray(ctx, vector, fun, true);
}

template<typename T, typename F>
jobject pagingList2Java(JniContextUtils &ctx, privmx::endpoint::core::PagingList<T> pagingList, F fun);

jobject string2jobject(JniContextUtils &ctx,const std::string &cstring);
jobject long2jobject(JniContextUtils &ctx,const int64_t &clong);
jobject string2jobject(JniContextUtils &ctx, const std::string &cstring);
jobject long2jobject(JniContextUtils &ctx, const int64_t &clong);

#endif //PRIVMX_POCKET_LIB_PARSER_H
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