lokinet/jni/lokinet_config.cpp

#include "lokinet_jni_common.hpp"
#include "network_loki_lokinet_LokinetConfig.h"

#include <llarp.hpp>
#include <llarp/config/config.hpp>

extern "C"
{
    JNIEXPORT jobject JNICALL Java_network_loki_lokinet_LokinetConfig_Obtain(JNIEnv* env, jclass, jstring dataDir)
    {
        auto conf = VisitStringAsStringView<llarp::Config*>(
            env, dataDir, [](std::string_view val) -> llarp::Config* { return new llarp::Config{val}; });

        if (conf == nullptr)
            return nullptr;
        return env->NewDirectByteBuffer(conf, sizeof(llarp::Config));
    }

    JNIEXPORT void JNICALL Java_network_loki_lokinet_LokinetConfig_Free(JNIEnv* env, jclass, jobject buf)
    {
        auto ptr = FromBuffer<llarp::Config>(env, buf);
        delete ptr;
    }

    JNIEXPORT jboolean JNICALL Java_network_loki_lokinet_LokinetConfig_Load(JNIEnv* env, jobject self)
    {
        auto conf = GetImpl<llarp::Config>(env, self);
        if (conf == nullptr)
            return JNI_FALSE;
        if (conf->Load())
        {
            return JNI_TRUE;
        }
        return JNI_FALSE;
    }

    JNIEXPORT jboolean JNICALL Java_network_loki_lokinet_LokinetConfig_Save(JNIEnv* env, jobject self)
    {
        auto conf = GetImpl<llarp::Config>(env, self);
        if (conf == nullptr)
            return JNI_FALSE;
        try
        {
            conf->Save();
        }
        catch (...)
        {
            return JNI_FALSE;
        }
        return JNI_TRUE;
    }

    JNIEXPORT void JNICALL Java_network_loki_lokinet_LokinetConfig_AddDefaultValue(
        JNIEnv* env, jobject self, jstring section, jstring key, jstring value)
    {
        auto convert = [](std::string_view str) -> std::string { return std::string{str}; };

        const auto sect = VisitStringAsStringView<std::string>(env, section, convert);
        const auto k = VisitStringAsStringView<std::string>(env, key, convert);
        const auto v = VisitStringAsStringView<std::string>(env, value, convert);

        auto conf = GetImpl<llarp::Config>(env, self);
        if (conf)
        {
            conf->AddDefault(sect, k, v);
        }
    }
}