rustore / RuStore Unreal Engine AppUpdate
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API/Autodoc/Files/AndroidJavaObjectFactory.cpp.md

Source code

#include "AndroidJavaObjectFactory.h"

using namespace RuStoreSDK;

AndroidJavaObject* AndroidJavaObjectFactory::CreateFromClassName(const FString& className, bool bMakeGlobalRef)
{
#if PLATFORM_ANDROID
    JNIEnv* env = FAndroidApplication::GetJavaEnv();
    jclass javaClass = FAndroidApplication::FindJavaClass(TCHAR_TO_ANSI(*className));
    if (javaClass == nullptr)
    {
        _LogError("AndroidJavaObjectFactory", FString::Printf(TEXT("CreateFromClassName: class not found: %s"), *className));
        return nullptr;
    }

    FString methodSignature = "()V";
    jmethodID constructor = FJavaWrapper::FindMethod(env, javaClass, "<init>", TCHAR_TO_ANSI(*methodSignature), false);
    if (constructor == nullptr)
    {
        _LogError("AndroidJavaObjectFactory", FString::Printf(TEXT("CreateFromClassName: constructor not found for class %s"), *className));
        return nullptr;
    }

    jobject localObject = env->NewObject(javaClass, constructor);
    if (localObject == nullptr || env->ExceptionCheck())
    {
        if (env->ExceptionCheck()) env->ExceptionClear();
        _LogError("AndroidJavaObjectFactory", FString::Printf(TEXT("CreateFromClassName: NewObject failed for class %s"), *className));
        return nullptr;
    }

    jobject javaObject = bMakeGlobalRef ? env->NewGlobalRef(localObject) : localObject;
    if (bMakeGlobalRef) env->DeleteLocalRef(localObject);

    return new AndroidJavaObject(env, javaClass, javaObject, "", bMakeGlobalRef);
#else
    return new AndroidJavaObject(className);
#endif
}

AndroidJavaObject* AndroidJavaObjectFactory::CreateForListener(const FString& className, const FString& interfaceName, intptr_t cppPointer, bool bMakeGlobalRef)
{
#if PLATFORM_ANDROID
    JNIEnv* env = FAndroidApplication::GetJavaEnv();
    jclass javaClass = FAndroidApplication::FindJavaClass(TCHAR_TO_ANSI(*className));
    if (javaClass == nullptr)
    {
        _LogError("AndroidJavaObjectFactory", FString::Printf(TEXT("CreateForListener: class not found: %s"), *className));
        return nullptr;
    }

    if (cppPointer != 0)
    {
        FString methodSignature = "(J)V";
        jmethodID constructor = FJavaWrapper::FindMethod(env, javaClass, "<init>", TCHAR_TO_ANSI(*methodSignature), false);
        if (constructor == nullptr)
        {
            _LogError("AndroidJavaObjectFactory", FString::Printf(TEXT("CreateForListener: constructor not found for class %s"), *className));
            return nullptr;
        }

        jobject localObject = env->NewObject(javaClass, constructor, (jlong)cppPointer);
        if (localObject == nullptr || env->ExceptionCheck())
        {
            if (env->ExceptionCheck()) env->ExceptionClear();
            _LogError("AndroidJavaObjectFactory", FString::Printf(TEXT("CreateForListener: NewObject failed for class %s"), *className));
            return nullptr;
        }

        jobject javaObject = bMakeGlobalRef ? env->NewGlobalRef(localObject) : localObject;
        if (bMakeGlobalRef) env->DeleteLocalRef(localObject);

        return new AndroidJavaObject(env, javaClass, javaObject, interfaceName, bMakeGlobalRef);
    }
    else
    {
        return new AndroidJavaObject(env, javaClass, nullptr, interfaceName, false);
    }
#else
    return new AndroidJavaObject(interfaceName);
#endif
}

#if PLATFORM_ANDROID
AndroidJavaObject* AndroidJavaObjectFactory::CreateFromThrowable(jthrowable throwable)
{
    if (throwable == nullptr)
    {
        _LogError("AndroidJavaObjectFactory", TEXT("CreateFromThrowable: throwable is null"));
        return nullptr;
    }

    JNIEnv* env = FAndroidApplication::GetJavaEnv();

    jclass localClass = env->GetObjectClass(throwable);
    jclass globalClass = (jclass)env->NewGlobalRef(localClass);
    env->DeleteLocalRef(localClass);

    jobject globalObject = env->NewGlobalRef((jobject)throwable);

    return new AndroidJavaObject(env, globalClass, globalObject, "", true, true);
}

AndroidJavaObject* AndroidJavaObjectFactory::CreateFromObject(jobject javaObject)
{
    if (javaObject == nullptr)
    {
        _LogError("AndroidJavaObjectFactory", TEXT("CreateFromObject: javaObject is null"));
        return nullptr;
    }

    JNIEnv* env = FAndroidApplication::GetJavaEnv();

    // javaClass: локальную ссылку глобализируем и удаляем
    jclass localClass = env->GetObjectClass(javaObject);
    jclass globalClass = (jclass)env->NewGlobalRef(localClass);
    env->DeleteLocalRef(localClass);

    // javaObject: глобализируем, но НЕ удаляем — caller владеет входным local ref
    jobject globalObject = env->NewGlobalRef(javaObject);

    return new AndroidJavaObject(env, globalClass, globalObject, "", true, true);
}

AndroidJavaObject* AndroidJavaObjectFactory::CreateFromClassAndObject(jclass javaClass, jobject javaObject)
{
    if (javaObject == nullptr)
    {
        _LogError("AndroidJavaObjectFactory", TEXT("CreateFromClassAndObject: javaObject is null"));
        return nullptr;
    }

    JNIEnv* env = FAndroidApplication::GetJavaEnv();

    // Оба параметра: создаём независимые global refs, входные ссылки НЕ удаляем —
    // caller владеет ими и должен вызвать DeleteLocalRef при необходимости
    jclass globalClass = (jclass)env->NewGlobalRef(javaClass);
    jobject globalObject = env->NewGlobalRef(javaObject);

    return new AndroidJavaObject(env, globalClass, globalObject, "", true, true);
}
#endif

AndroidJavaObject* AndroidJavaObjectFactory::CreateFromStaticField(const FString& fieldName, const FString& className)
{
    return AndroidJavaObject::GetStaticAJObject(fieldName, className);
}

AndroidJavaObject* AndroidJavaObjectFactory::CreateNullStub(const FString& interfaceName)
{
#if PLATFORM_ANDROID
    JNIEnv* env = FAndroidApplication::GetJavaEnv();
    return new AndroidJavaObject(env, nullptr, nullptr, interfaceName, false);
#else
    return new AndroidJavaObject(interfaceName);
#endif
}
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