/**************************************************************************/
/* java_class_wrapper.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "api/java_class_wrapper.h"
#include "string_android.h"
#include "thread_jandroid.h"
bool JavaClass::_call_method(JavaObject *p_instance, const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error, Variant &ret) {
HashMap<StringName, List<MethodInfo>>::Iterator M = methods.find(p_method);
if (!M) {
return false;
}
JNIEnv *env = get_jni_env();
ERR_FAIL_NULL_V(env, false);
MethodInfo *method = nullptr;
for (MethodInfo &E : M->value) {
if (!p_instance && !E._static && !E._constructor) {
r_error.error = Callable::CallError::CALL_ERROR_INSTANCE_IS_NULL;
continue;
}
int pc = E.param_types.size();
if (p_argcount < pc) {
r_error.error = Callable::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
r_error.expected = pc;
continue;
}
if (p_argcount > pc) {
r_error.error = Callable::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS;
r_error.expected = pc;
continue;
}
uint32_t *ptypes = E.param_types.ptrw();
bool valid = true;
for (int i = 0; i < pc; i++) {
Variant::Type arg_expected = Variant::NIL;
switch (ptypes[i]) {
case ARG_TYPE_VOID: {
//bug?
} break;
case ARG_TYPE_BOOLEAN: {
if (p_args[i]->get_type() != Variant::BOOL) {
arg_expected = Variant::BOOL;
}
} break;
case ARG_NUMBER_CLASS_BIT | ARG_TYPE_BYTE:
case ARG_NUMBER_CLASS_BIT | ARG_TYPE_CHAR:
case ARG_NUMBER_CLASS_BIT | ARG_TYPE_SHORT:
case ARG_NUMBER_CLASS_BIT | ARG_TYPE_INT:
case ARG_NUMBER_CLASS_BIT | ARG_TYPE_LONG:
case ARG_TYPE_BYTE:
case ARG_TYPE_CHAR:
case ARG_TYPE_SHORT:
case ARG_TYPE_INT:
case ARG_TYPE_LONG: {
if (!p_args[i]->is_num()) {
arg_expected = Variant::INT;
}
} break;
case ARG_NUMBER_CLASS_BIT | ARG_TYPE_FLOAT:
case ARG_NUMBER_CLASS_BIT | ARG_TYPE_DOUBLE:
case ARG_TYPE_FLOAT:
case ARG_TYPE_DOUBLE: {
if (!p_args[i]->is_num()) {
arg_expected = Variant::FLOAT;
}
} break;
case ARG_TYPE_STRING: {
if (!p_args[i]->is_string()) {
arg_expected = Variant::STRING;
}
} break;
case ARG_TYPE_CLASS: {
if (p_args[i]->get_type() != Variant::OBJECT && p_args[i]->get_type() != Variant::NIL) {
arg_expected = Variant::OBJECT;
} else {
Ref<RefCounted> ref = *p_args[i];
if (ref.is_valid()) {
if (Object::cast_to<JavaObject>(ref.ptr())) {
Ref<JavaObject> jo = ref;
//could be faster
String cn = E.param_sigs[i].operator String();
if (cn.begins_with("L") && cn.ends_with(";")) {
cn = cn.substr(1, cn.length() - 2);
}
jclass c = env->FindClass(cn.utf8().get_data());
if (!c || !env->IsInstanceOf(jo->instance, c)) {
arg_expected = Variant::OBJECT;
} else {
//ok
}
} else {
arg_expected = Variant::OBJECT;
}
}
}
} break;
default: {
if (p_args[i]->get_type() != Variant::ARRAY) {
arg_expected = Variant::ARRAY;
}
} break;
}
if (arg_expected != Variant::NIL) {
r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT;
r_error.argument = i;
r_error.expected = arg_expected;
valid = false;
break;
}
}
if (!valid) {
continue;
}
method = &E;
break;
}
if (!method) {
return true; //no version convinces
}
r_error.error = Callable::CallError::CALL_OK;
jvalue *argv = nullptr;
if (method->param_types.size()) {
argv = (jvalue *)alloca(sizeof(jvalue) * method->param_types.size());
}
List<jobject> to_free;
for (int i = 0; i < method->param_types.size(); i++) {
switch (method->param_types[i]) {
case ARG_TYPE_VOID: {
//can't happen
argv[i].l = nullptr; //I hope this works
} break;
case ARG_TYPE_BOOLEAN: {
argv[i].z = *p_args[i];
} break;
case ARG_TYPE_BYTE: {
argv[i].b = *p_args[i];
} break;
case ARG_TYPE_CHAR: {
argv[i].c = *p_args[i];
} break;
case ARG_TYPE_SHORT: {
argv[i].s = *p_args[i];
} break;
case ARG_TYPE_INT: {
argv[i].i = *p_args[i];
} break;
case ARG_TYPE_LONG: {
argv[i].j = (int64_t)*p_args[i];
} break;
case ARG_TYPE_FLOAT: {
argv[i].f = *p_args[i];
} break;
case ARG_TYPE_DOUBLE: {
argv[i].d = *p_args[i];
} break;
case ARG_NUMBER_CLASS_BIT | ARG_TYPE_BOOLEAN: {
jclass bclass = env->FindClass("java/lang/Boolean");
jmethodID ctor = env->GetMethodID(bclass, "<init>", "(Z)V");
jvalue val;
val.z = (bool)(*p_args[i]);
jobject obj = env->NewObjectA(bclass, ctor, &val);
argv[i].l = obj;
to_free.push_back(obj);
} break;
case ARG_NUMBER_CLASS_BIT | ARG_TYPE_BYTE: {
jclass bclass = env->FindClass("java/lang/Byte");
jmethodID ctor = env->GetMethodID(bclass, "<init>", "(B)V");
jvalue val;
val.b = (int)(*p_args[i]);
jobject obj = env->NewObjectA(bclass, ctor, &val);
argv[i].l = obj;
to_free.push_back(obj);
} break;
case ARG_NUMBER_CLASS_BIT | ARG_TYPE_CHAR: {
jclass bclass = env->FindClass("java/lang/Character");
jmethodID ctor = env->GetMethodID(bclass, "<init>", "(C)V");
jvalue val;
val.c = (int)(*p_args[i]);
jobject obj = env->NewObjectA(bclass, ctor, &val);
argv[i].l = obj;
to_free.push_back(obj);
} break;
case ARG_NUMBER_CLASS_BIT | ARG_TYPE_SHORT: {
jclass bclass = env->FindClass("java/lang/Short");
jmethodID ctor = env->GetMethodID(bclass, "<init>", "(S)V");
jvalue val;
val.s = (int)(*p_args[i]);
jobject obj = env->NewObjectA(bclass, ctor, &val);
argv[i].l = obj;
to_free.push_back(obj);
} break;
case ARG_NUMBER_CLASS_BIT | ARG_TYPE_INT: {
jclass bclass = env->FindClass("java/lang/Integer");
jmethodID ctor = env->GetMethodID(bclass, "<init>", "(I)V");
jvalue val;
val.i = (int)(*p_args[i]);
jobject obj = env->NewObjectA(bclass, ctor, &val);
argv[i].l = obj;
to_free.push_back(obj);
} break;
case ARG_NUMBER_CLASS_BIT | ARG_TYPE_LONG: {
jclass bclass = env->FindClass("java/lang/Long");
jmethodID ctor = env->GetMethodID(bclass, "<init>", "(J)V");
jvalue val;
val.j = (int64_t)(*p_args[i]);
jobject obj = env->NewObjectA(bclass, ctor, &val);
argv[i].l = obj;
to_free.push_back(obj);
} break;
case ARG_NUMBER_CLASS_BIT | ARG_TYPE_FLOAT: {
jclass bclass = env->FindClass("java/lang/Float");
jmethodID ctor = env->GetMethodID(bclass, "<init>", "(F)V");
jvalue val;
val.f = (float)(*p_args[i]);
jobject obj = env->NewObjectA(bclass, ctor, &val);
argv[i].l = obj;
to_free.push_back(obj);
} break;
case ARG_NUMBER_CLASS_BIT | ARG_TYPE_DOUBLE: {
jclass bclass = env->FindClass("java/lang/Double");
jmethodID ctor = env->GetMethodID(bclass, "<init>", "(D)V");
jvalue val;
val.d = (double)(*p_args[i]);
jobject obj = env->NewObjectA(bclass, ctor, &val);
argv[i].l = obj;
to_free.push_back(obj);
} break;
case ARG_TYPE_STRING: {
String s = *p_args[i];
jstring jStr = env->NewStringUTF(s.utf8().get_data());
argv[i].l = jStr;
to_free.push_back(jStr);
} break;
case ARG_TYPE_CLASS: {
Ref<JavaObject> jo = *p_args[i];
if (jo.is_valid()) {
argv[i].l = jo->instance;
} else {
argv[i].l = nullptr; //I hope this works
}
} break;
case ARG_ARRAY_BIT | ARG_TYPE_BOOLEAN: {
Array arr = *p_args[i];
jbooleanArray a = env->NewBooleanArray(arr.size());
for (int j = 0; j < arr.size(); j++) {
jboolean val = arr[j];
env->SetBooleanArrayRegion(a, j, 1, &val);
}
argv[i].l = a;
to_free.push_back(a);
} break;
case ARG_ARRAY_BIT | ARG_TYPE_BYTE: {
Array arr = *p_args[i];
jbyteArray a = env->NewByteArray(arr.size());
for (int j = 0; j < arr.size(); j++) {
jbyte val = arr[j];
env->SetByteArrayRegion(a, j, 1, &val);
}
argv[i].l = a;
to_free.push_back(a);
} break;
case ARG_ARRAY_BIT | ARG_TYPE_CHAR: {
Array arr = *p_args[i];
jcharArray a = env->NewCharArray(arr.size());
for (int j = 0; j < arr.size(); j++) {
jchar val = arr[j];
env->SetCharArrayRegion(a, j, 1, &val);
}
argv[i].l = a;
to_free.push_back(a);
} break;
case ARG_ARRAY_BIT | ARG_TYPE_SHORT: {
Array arr = *p_args[i];
jshortArray a = env->NewShortArray(arr.size());
for (int j = 0; j < arr.size(); j++) {
jshort val = arr[j];
env->SetShortArrayRegion(a, j, 1, &val);
}
argv[i].l = a;
to_free.push_back(a);
} break;
case ARG_ARRAY_BIT | ARG_TYPE_INT: {
Array arr = *p_args[i];
jintArray a = env->NewIntArray(arr.size());
for (int j = 0; j < arr.size(); j++) {
jint val = arr[j];
env->SetIntArrayRegion(a, j, 1, &val);
}
argv[i].l = a;
to_free.push_back(a);
} break;
case ARG_ARRAY_BIT | ARG_TYPE_LONG: {
Array arr = *p_args[i];
jlongArray a = env->NewLongArray(arr.size());
for (int j = 0; j < arr.size(); j++) {
jlong val = (int64_t)arr[j];
env->SetLongArrayRegion(a, j, 1, &val);
}
argv[i].l = a;
to_free.push_back(a);
} break;
case ARG_ARRAY_BIT | ARG_TYPE_FLOAT: {
Array arr = *p_args[i];
jfloatArray a = env->NewFloatArray(arr.size());
for (int j = 0; j < arr.size(); j++) {
jfloat val = arr[j];
env->SetFloatArrayRegion(a, j, 1, &val);
}
argv[i].l = a;
to_free.push_back(a);
} break;
case ARG_ARRAY_BIT | ARG_TYPE_DOUBLE: {
Array arr = *p_args[i];
jdoubleArray a = env->NewDoubleArray(arr.size());
for (int j = 0; j < arr.size(); j++) {
jdouble val = arr[j];
env->SetDoubleArrayRegion(a, j, 1, &val);
}
argv[i].l = a;
to_free.push_back(a);
} break;
case ARG_ARRAY_BIT | ARG_TYPE_STRING: {
Array arr = *p_args[i];
jobjectArray a = env->NewObjectArray(arr.size(), env->FindClass("java/lang/String"), nullptr);
for (int j = 0; j < arr.size(); j++) {
String s = arr[j];
jstring jStr = env->NewStringUTF(s.utf8().get_data());
env->SetObjectArrayElement(a, j, jStr);
to_free.push_back(jStr);
}
argv[i].l = a;
to_free.push_back(a);
} break;
case ARG_ARRAY_BIT | ARG_TYPE_CLASS: {
argv[i].l = nullptr;
} break;
}
}
r_error.error = Callable::CallError::CALL_OK;
bool success = true;
switch (method->return_type) {
case ARG_TYPE_VOID: {
if (method->_static) {
env->CallStaticVoidMethodA(_class, method->method, argv);
} else {
env->CallVoidMethodA(p_instance->instance, method->method, argv);
}
ret = Variant();
} break;
case ARG_TYPE_BOOLEAN: {
if (method->_static) {
ret = env->CallStaticBooleanMethodA(_class, method->method, argv);
} else {
ret = env->CallBooleanMethodA(p_instance->instance, method->method, argv);
}
} break;
case ARG_TYPE_BYTE: {
if (method->_static) {
ret = env->CallStaticByteMethodA(_class, method->method, argv);
} else {
ret = env->CallByteMethodA(p_instance->instance, method->method, argv);
}
} break;
case ARG_TYPE_CHAR: {
if (method->_static) {
ret = env->CallStaticCharMethodA(_class, method->method, argv);
} else {
ret = env->CallCharMethodA(p_instance->instance, method->method, argv);
}
} break;
case ARG_TYPE_SHORT: {
if (method->_static) {
ret = env->CallStaticShortMethodA(_class, method->method, argv);
} else {
ret = env->CallShortMethodA(p_instance->instance, method->method, argv);
}
} break;
case ARG_TYPE_INT: {
if (method->_static) {
ret = env->CallStaticIntMethodA(_class, method->method, argv);
} else {
ret = env->CallIntMethodA(p_instance->instance, method->method, argv);
}
} break;
case ARG_TYPE_LONG: {
if (method->_static) {
ret = (int64_t)env->CallStaticLongMethodA(_class, method->method, argv);
} else {
ret = (int64_t)env->CallLongMethodA(p_instance->instance, method->method, argv);
}
} break;
case ARG_TYPE_FLOAT: {
if (method->_static) {
ret = env->CallStaticFloatMethodA(_class, method->method, argv);
} else {
ret = env->CallFloatMethodA(p_instance->instance, method->method, argv);
}
} break;
case ARG_TYPE_DOUBLE: {
if (method->_static) {
ret = env->CallStaticDoubleMethodA(_class, method->method, argv);
} else {
ret = env->CallDoubleMethodA(p_instance->instance, method->method, argv);
}
} break;
default: {
jobject obj;
if (method->_constructor) {
obj = env->NewObject(_class, method->method, argv);
} else if (method->_static) {
obj = env->CallStaticObjectMethodA(_class, method->method, argv);
} else {
obj = env->CallObjectMethodA(p_instance->instance, method->method, argv);
}
if (!obj) {
ret = Variant();
} else {
if (!_convert_object_to_variant(env, obj, ret, method->return_type)) {
ret = Variant();
r_error.error = Callable::CallError::CALL_ERROR_INVALID_METHOD;
success = false;
}
env->DeleteLocalRef(obj);
}
} break;
}
for (jobject &E : to_free) {
env->DeleteLocalRef(E);
}
return success;
}
Variant JavaClass::callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) {
Variant ret;
String method = (p_method == java_constructor_name) ? "<init>" : p_method;
bool found = _call_method(nullptr, method, p_args, p_argcount, r_error, ret);
if (found) {
return ret;
}
return RefCounted::callp(p_method, p_args, p_argcount, r_error);
}
String JavaClass::get_java_class_name() const {
return java_class_name;
}
TypedArray<Dictionary> JavaClass::get_java_method_list() const {
TypedArray<Dictionary> method_list;
for (const KeyValue<StringName, List<MethodInfo>> &item : methods) {
for (const MethodInfo &mi : item.value) {
Dictionary method;
method["name"] = mi._constructor ? java_constructor_name : String(item.key);
method["id"] = (uint64_t)mi.method;
method["default_args"] = Array();
method["flags"] = METHOD_FLAGS_DEFAULT & (mi._static || mi._constructor ? METHOD_FLAG_STATIC : METHOD_FLAG_NORMAL);
{
Array a;
for (uint32_t argtype : mi.param_types) {
Dictionary d;
Variant::Type t = Variant::NIL;
float likelihood = 0.0;
_convert_to_variant_type(argtype, t, likelihood);
d["type"] = t;
if (t == Variant::OBJECT) {
d["hint"] = PROPERTY_HINT_RESOURCE_TYPE;
d["hint_string"] = "JavaObject";
} else {
d["hint"] = 0;
d["hint_string"] = "";
}
a.push_back(d);
}
method["args"] = a;
}
{
Dictionary d;
if (mi._constructor) {
d["type"] = Variant::OBJECT;
d["hint"] = PROPERTY_HINT_RESOURCE_TYPE;
d["hint_string"] = "JavaObject";
} else {
Variant::Type t = Variant::NIL;
float likelihood = 0.0;
_convert_to_variant_type(mi.return_type, t, likelihood);
d["type"] = t;
if (t == Variant::OBJECT) {
d["hint"] = PROPERTY_HINT_RESOURCE_TYPE;
d["hint_string"] = "JavaObject";
} else {
d["hint"] = 0;
d["hint_string"] = "";
}
}
method["return_type"] = d;
}
method_list.push_back(method);
}
}
return method_list;
}
Ref<JavaClass> JavaClass::get_java_parent_class() const {
ERR_FAIL_NULL_V(_class, Ref<JavaClass>());
JNIEnv *env = get_jni_env();
ERR_FAIL_NULL_V(env, Ref<JavaClass>());
jclass superclass = (jclass)env->CallObjectMethod(_class, JavaClassWrapper::singleton->Class_getSuperclass);
if (!superclass) {
return Ref<JavaClass>();
}
Ref<JavaClass> ret = JavaClassWrapper::singleton->wrap_jclass(superclass);
env->DeleteLocalRef(superclass);
return ret;
}
String JavaClass::to_string() {
return "<JavaClass:" + java_class_name + ">";
}
JavaClass::JavaClass() {
}
JavaClass::~JavaClass() {
if (_class) {
JNIEnv *env = get_jni_env();
ERR_FAIL_NULL(env);
env->DeleteGlobalRef(_class);
}
}
/////////////////////
Variant JavaObject::callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) {
if (instance) {
Ref<JavaClass> c = base_class;
while (c.is_valid()) {
Variant ret;
bool found = c->_call_method(this, p_method, p_args, p_argcount, r_error, ret);
if (found) {
return ret;
}
c = c->get_java_parent_class();
}
}
return RefCounted::callp(p_method, p_args, p_argcount, r_error);
}
Ref<JavaClass> JavaObject::get_java_class() const {
return base_class;
}
String JavaObject::to_string() {
if (base_class.is_valid() && instance) {
return "<JavaObject:" + base_class->java_class_name + " \"" + (String)call("toString") + "\">";
}
return RefCounted::to_string();
}
JavaObject::JavaObject() {
}
JavaObject::JavaObject(const Ref<JavaClass> &p_base, jobject p_instance) {
JNIEnv *env = get_jni_env();
ERR_FAIL_NULL(env);
base_class = p_base;
instance = env->NewGlobalRef(p_instance);
}
JavaObject::~JavaObject() {
if (instance) {
JNIEnv *env = get_jni_env();
ERR_FAIL_NULL(env);
env->DeleteGlobalRef(instance);
}
}
////////////////////
bool JavaClassWrapper::_get_type_sig(JNIEnv *env, jobject obj, uint32_t &sig, String &strsig) {
jstring name2 = (jstring)env->CallObjectMethod(obj, Class_getName);
String str_type = jstring_to_string(name2, env);
env->DeleteLocalRef(name2);
uint32_t t = 0;
if (str_type.begins_with("[")) {
t = JavaClass::ARG_ARRAY_BIT;
strsig = "[";
str_type = str_type.substr(1, str_type.length() - 1);
if (str_type.begins_with("[")) {
print_line("Nested arrays not supported for type: " + str_type);
return false;
}
if (str_type.begins_with("L")) {
str_type = str_type.substr(1, str_type.length() - 2); //ok it's a class
}
}
if (str_type == "void" || str_type == "V") {
t |= JavaClass::ARG_TYPE_VOID;
strsig += "V";
} else if (str_type == "boolean" || str_type == "Z") {
t |= JavaClass::ARG_TYPE_BOOLEAN;
strsig += "Z";
} else if (str_type == "byte" || str_type == "B") {
t |= JavaClass::ARG_TYPE_BYTE;
strsig += "B";
} else if (str_type == "char" || str_type == "C") {
t |= JavaClass::ARG_TYPE_CHAR;
strsig += "C";
} else if (str_type == "short" || str_type == "S") {
t |= JavaClass::ARG_TYPE_SHORT;
strsig += "S";
} else if (str_type == "int" || str_type == "I") {
t |= JavaClass::ARG_TYPE_INT;
strsig += "I";
} else if (str_type == "long" || str_type == "J") {
t |= JavaClass::ARG_TYPE_LONG;
strsig += "J";
} else if (str_type == "float" || str_type == "F") {
t |= JavaClass::ARG_TYPE_FLOAT;
strsig += "F";
} else if (str_type == "double" || str_type == "D") {
t |= JavaClass::ARG_TYPE_DOUBLE;
strsig += "D";
} else if (str_type == "java.lang.String") {
t |= JavaClass::ARG_TYPE_STRING;
strsig += "Ljava/lang/String;";
} else if (str_type == "java.lang.Boolean") {
t |= JavaClass::ARG_TYPE_BOOLEAN | JavaClass::ARG_NUMBER_CLASS_BIT;
strsig += "Ljava/lang/Boolean;";
} else if (str_type == "java.lang.Byte") {
t |= JavaClass::ARG_TYPE_BYTE | JavaClass::ARG_NUMBER_CLASS_BIT;
strsig += "Ljava/lang/Byte;";
} else if (str_type == "java.lang.Character") {
t |= JavaClass::ARG_TYPE_CHAR | JavaClass::ARG_NUMBER_CLASS_BIT;
strsig += "Ljava/lang/Character;";
} else if (str_type == "java.lang.Short") {
t |= JavaClass::ARG_TYPE_SHORT | JavaClass::ARG_NUMBER_CLASS_BIT;
strsig += "Ljava/lang/Short;";
} else if (str_type == "java.lang.Integer") {
t |= JavaClass::ARG_TYPE_INT | JavaClass::ARG_NUMBER_CLASS_BIT;
strsig += "Ljava/lang/Integer;";
} else if (str_type == "java.lang.Long") {
t |= JavaClass::ARG_TYPE_LONG | JavaClass::ARG_NUMBER_CLASS_BIT;
strsig += "Ljava/lang/Long;";
} else if (str_type == "java.lang.Float") {
t |= JavaClass::ARG_TYPE_FLOAT | JavaClass::ARG_NUMBER_CLASS_BIT;
strsig += "Ljava/lang/Float;";
} else if (str_type == "java.lang.Double") {
t |= JavaClass::ARG_TYPE_DOUBLE | JavaClass::ARG_NUMBER_CLASS_BIT;
strsig += "Ljava/lang/Double;";
} else {
//a class likely
strsig += "L" + str_type.replace(".", "/") + ";";
t |= JavaClass::ARG_TYPE_CLASS;
}
sig = t;
return true;
}
bool JavaClass::_convert_object_to_variant(JNIEnv *env, jobject obj, Variant &var, uint32_t p_sig) {
if (!obj) {
var = Variant(); //seems null is just null...
return true;
}
switch (p_sig) {
case ARG_TYPE_VOID: {
return Variant();
} break;
case ARG_TYPE_BOOLEAN | ARG_NUMBER_CLASS_BIT: {
var = env->CallBooleanMethod(obj, JavaClassWrapper::singleton->Boolean_booleanValue);
return true;
} break;
case ARG_TYPE_BYTE | ARG_NUMBER_CLASS_BIT: {
var = env->CallByteMethod(obj, JavaClassWrapper::singleton->Byte_byteValue);
return true;
} break;
case ARG_TYPE_CHAR | ARG_NUMBER_CLASS_BIT: {
var = env->CallCharMethod(obj, JavaClassWrapper::singleton->Character_characterValue);
return true;
} break;
case ARG_TYPE_SHORT | ARG_NUMBER_CLASS_BIT: {
var = env->CallShortMethod(obj, JavaClassWrapper::singleton->Short_shortValue);
return true;
} break;
case ARG_TYPE_INT | ARG_NUMBER_CLASS_BIT: {
var = env->CallIntMethod(obj, JavaClassWrapper::singleton->Integer_integerValue);
return true;
} break;
case ARG_TYPE_LONG | ARG_NUMBER_CLASS_BIT: {
var = (int64_t)env->CallLongMethod(obj, JavaClassWrapper::singleton->Long_longValue);
return true;
} break;
case ARG_TYPE_FLOAT | ARG_NUMBER_CLASS_BIT: {
var = env->CallFloatMethod(obj, JavaClassWrapper::singleton->Float_floatValue);
return true;
} break;
case ARG_TYPE_DOUBLE | ARG_NUMBER_CLASS_BIT: {
var = env->CallDoubleMethod(obj, JavaClassWrapper::singleton->Double_doubleValue);
return true;
} break;
case ARG_TYPE_STRING: {
var = jstring_to_string((jstring)obj, env);
return true;
} break;
case ARG_TYPE_CLASS: {
jclass java_class = env->GetObjectClass(obj);
Ref<JavaClass> java_class_wrapped = JavaClassWrapper::singleton->wrap_jclass(java_class);
env->DeleteLocalRef(java_class);
if (java_class_wrapped.is_valid()) {
Ref<JavaObject> ret = Ref<JavaObject>(memnew(JavaObject(java_class_wrapped, obj)));
var = ret;
return true;
}
return false;
} break;
case ARG_ARRAY_BIT | ARG_TYPE_VOID: {
var = Array(); // ?
return true;
} break;
case ARG_ARRAY_BIT | ARG_TYPE_BOOLEAN: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jboolean val;
env->GetBooleanArrayRegion((jbooleanArray)arr, 0, 1, &val);
ret.push_back(val);
}
var = ret;
return true;
} break;
case ARG_ARRAY_BIT | ARG_TYPE_BYTE: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jbyte val;
env->GetByteArrayRegion((jbyteArray)arr, 0, 1, &val);
ret.push_back(val);
}
var = ret;
return true;
} break;
case ARG_ARRAY_BIT | ARG_TYPE_CHAR: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jchar val;
env->GetCharArrayRegion((jcharArray)arr, 0, 1, &val);
ret.push_back(val);
}
var = ret;
return true;
} break;
case ARG_ARRAY_BIT | ARG_TYPE_SHORT: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jshort val;
env->GetShortArrayRegion((jshortArray)arr, 0, 1, &val);
ret.push_back(val);
}
var = ret;
return true;
} break;
case ARG_ARRAY_BIT | ARG_TYPE_INT: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jint val;
env->GetIntArrayRegion((jintArray)arr, 0, 1, &val);
ret.push_back(val);
}
var = ret;
return true;
} break;
case ARG_ARRAY_BIT | ARG_TYPE_LONG: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jlong val;
env->GetLongArrayRegion((jlongArray)arr, 0, 1, &val);
ret.push_back((int64_t)val);
}
var = ret;
return true;
} break;
case ARG_ARRAY_BIT | ARG_TYPE_FLOAT: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jfloat val;
env->GetFloatArrayRegion((jfloatArray)arr, 0, 1, &val);
ret.push_back(val);
}
var = ret;
return true;
} break;
case ARG_ARRAY_BIT | ARG_TYPE_DOUBLE: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jdouble val;
env->GetDoubleArrayRegion((jdoubleArray)arr, 0, 1, &val);
ret.push_back(val);
}
var = ret;
return true;
} break;
case ARG_NUMBER_CLASS_BIT | ARG_ARRAY_BIT | ARG_TYPE_BOOLEAN: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jobject o = env->GetObjectArrayElement(arr, i);
if (!o) {
ret.push_back(Variant());
} else {
bool val = env->CallBooleanMethod(o, JavaClassWrapper::singleton->Boolean_booleanValue);
ret.push_back(val);
}
env->DeleteLocalRef(o);
}
var = ret;
return true;
} break;
case ARG_NUMBER_CLASS_BIT | ARG_ARRAY_BIT | ARG_TYPE_BYTE: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jobject o = env->GetObjectArrayElement(arr, i);
if (!o) {
ret.push_back(Variant());
} else {
int val = env->CallByteMethod(o, JavaClassWrapper::singleton->Byte_byteValue);
ret.push_back(val);
}
env->DeleteLocalRef(o);
}
var = ret;
return true;
} break;
case ARG_NUMBER_CLASS_BIT | ARG_ARRAY_BIT | ARG_TYPE_CHAR: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jobject o = env->GetObjectArrayElement(arr, i);
if (!o) {
ret.push_back(Variant());
} else {
int val = env->CallCharMethod(o, JavaClassWrapper::singleton->Character_characterValue);
ret.push_back(val);
}
env->DeleteLocalRef(o);
}
var = ret;
return true;
} break;
case ARG_NUMBER_CLASS_BIT | ARG_ARRAY_BIT | ARG_TYPE_SHORT: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jobject o = env->GetObjectArrayElement(arr, i);
if (!o) {
ret.push_back(Variant());
} else {
int val = env->CallShortMethod(o, JavaClassWrapper::singleton->Short_shortValue);
ret.push_back(val);
}
env->DeleteLocalRef(o);
}
var = ret;
return true;
} break;
case ARG_NUMBER_CLASS_BIT | ARG_ARRAY_BIT | ARG_TYPE_INT: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jobject o = env->GetObjectArrayElement(arr, i);
if (!o) {
ret.push_back(Variant());
} else {
int val = env->CallIntMethod(o, JavaClassWrapper::singleton->Integer_integerValue);
ret.push_back(val);
}
env->DeleteLocalRef(o);
}
var = ret;
return true;
} break;
case ARG_NUMBER_CLASS_BIT | ARG_ARRAY_BIT | ARG_TYPE_LONG: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jobject o = env->GetObjectArrayElement(arr, i);
if (!o) {
ret.push_back(Variant());
} else {
int64_t val = env->CallLongMethod(o, JavaClassWrapper::singleton->Long_longValue);
ret.push_back(val);
}
env->DeleteLocalRef(o);
}
var = ret;
return true;
} break;
case ARG_NUMBER_CLASS_BIT | ARG_ARRAY_BIT | ARG_TYPE_FLOAT: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jobject o = env->GetObjectArrayElement(arr, i);
if (!o) {
ret.push_back(Variant());
} else {
float val = env->CallFloatMethod(o, JavaClassWrapper::singleton->Float_floatValue);
ret.push_back(val);
}
env->DeleteLocalRef(o);
}
var = ret;
return true;
} break;
case ARG_NUMBER_CLASS_BIT | ARG_ARRAY_BIT | ARG_TYPE_DOUBLE: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jobject o = env->GetObjectArrayElement(arr, i);
if (!o) {
ret.push_back(Variant());
} else {
double val = env->CallDoubleMethod(o, JavaClassWrapper::singleton->Double_doubleValue);
ret.push_back(val);
}
env->DeleteLocalRef(o);
}
var = ret;
return true;
} break;
case ARG_ARRAY_BIT | ARG_TYPE_STRING: {
Array ret;
jobjectArray arr = (jobjectArray)obj;
int count = env->GetArrayLength(arr);
for (int i = 0; i < count; i++) {
jobject o = env->GetObjectArrayElement(arr, i);
if (!o) {
ret.push_back(Variant());
} else {
String val = jstring_to_string((jstring)o, env);
ret.push_back(val);
}
env->DeleteLocalRef(o);
}
var = ret;
return true;
} break;
case ARG_ARRAY_BIT | ARG_TYPE_CLASS: {
} break;
}
return false;
}
Ref<JavaClass> JavaClassWrapper::_wrap(const String &p_class, bool p_allow_private_methods_access) {
String class_name_dots = p_class.replace("/", ".");
if (class_cache.has(class_name_dots)) {
return class_cache[class_name_dots];
}
JNIEnv *env = get_jni_env();
ERR_FAIL_NULL_V(env, Ref<JavaClass>());
jclass bclass = env->FindClass(class_name_dots.replace(".", "/").utf8().get_data());
ERR_FAIL_NULL_V(bclass, Ref<JavaClass>());
jobjectArray constructors = (jobjectArray)env->CallObjectMethod(bclass, Class_getDeclaredConstructors);
ERR_FAIL_NULL_V(constructors, Ref<JavaClass>());
jobjectArray methods = (jobjectArray)env->CallObjectMethod(bclass, Class_getDeclaredMethods);
ERR_FAIL_NULL_V(methods, Ref<JavaClass>());
Ref<JavaClass> java_class = memnew(JavaClass);
java_class->java_class_name = class_name_dots;
Vector<String> class_name_parts = class_name_dots.split(".");
java_class->java_constructor_name = class_name_parts[class_name_parts.size() - 1];
java_class->_class = (jclass)env->NewGlobalRef(bclass);
class_cache[class_name_dots] = java_class;
LocalVector<jobject> methods_and_constructors;
int constructor_count = env->GetArrayLength(constructors);
int method_count = env->GetArrayLength(methods);
methods_and_constructors.resize(method_count + constructor_count);
for (int i = 0; i < constructor_count; i++) {
methods_and_constructors[i] = env->GetObjectArrayElement(constructors, i);
}
for (int i = 0; i < method_count; i++) {
methods_and_constructors[constructor_count + i] = env->GetObjectArrayElement(methods, i);
}
for (int i = 0; i < (int)methods_and_constructors.size(); i++) {
jobject obj = methods_and_constructors[i];
ERR_CONTINUE(!obj);
bool is_constructor = i < constructor_count;
String str_method;
if (is_constructor) {
str_method = "<init>";
} else {
jstring name = (jstring)env->CallObjectMethod(obj, Method_getName);
str_method = jstring_to_string(name, env);
env->DeleteLocalRef(name);
}
Vector<String> params;
jint mods = env->CallIntMethod(obj, is_constructor ? Constructor_getModifiers : Method_getModifiers);
if (!(mods & 0x0001) && (is_constructor || !p_allow_private_methods_access)) {
env->DeleteLocalRef(obj);
continue; //not public bye
}
jobjectArray param_types = (jobjectArray)env->CallObjectMethod(obj, is_constructor ? Constructor_getParameterTypes : Method_getParameterTypes);
int count = env->GetArrayLength(param_types);
if (!java_class->methods.has(str_method)) {
java_class->methods[str_method] = List<JavaClass::MethodInfo>();
}
JavaClass::MethodInfo mi;
mi._static = (mods & 0x8) != 0;
mi._constructor = is_constructor;
bool valid = true;
String signature = "(";
for (int j = 0; j < count; j++) {
jobject obj2 = env->GetObjectArrayElement(param_types, j);
String strsig;
uint32_t sig = 0;
if (!_get_type_sig(env, obj2, sig, strsig)) {
valid = false;
env->DeleteLocalRef(obj2);
break;
}
signature += strsig;
mi.param_types.push_back(sig);
mi.param_sigs.push_back(strsig);
env->DeleteLocalRef(obj2);
}
if (!valid) {
print_line("Method can't be bound (unsupported arguments): " + class_name_dots + "::" + str_method);
env->DeleteLocalRef(obj);
env->DeleteLocalRef(param_types);
continue;
}
signature += ")";
if (is_constructor) {
signature += "V";
mi.return_type = JavaClass::ARG_TYPE_CLASS;
} else {
jobject return_type = (jobject)env->CallObjectMethod(obj, Method_getReturnType);
String strsig;
uint32_t sig = 0;
if (!_get_type_sig(env, return_type, sig, strsig)) {
print_line("Method can't be bound (unsupported return type): " + class_name_dots + "::" + str_method);
env->DeleteLocalRef(obj);
env->DeleteLocalRef(param_types);
env->DeleteLocalRef(return_type);
continue;
}
signature += strsig;
mi.return_type = sig;
env->DeleteLocalRef(return_type);
}
bool discard = false;
for (List<JavaClass::MethodInfo>::Element *E = java_class->methods[str_method].front(); E; E = E->next()) {
float new_likeliness = 0;
float existing_likeliness = 0;
if (E->get().param_types.size() != mi.param_types.size()) {
continue;
}
bool this_valid = true;
for (int j = 0; j < E->get().param_types.size(); j++) {
Variant::Type _new;
float new_l;
Variant::Type existing;
float existing_l;
JavaClass::_convert_to_variant_type(E->get().param_types[j], existing, existing_l);
JavaClass::_convert_to_variant_type(mi.param_types[j], _new, new_l);
if (_new != existing) {
this_valid = false;
break;
}
new_likeliness += new_l;
existing_likeliness = existing_l;
}
if (!this_valid) {
continue;
}
if (new_likeliness > existing_likeliness) {
java_class->methods[str_method].erase(E);
break;
} else {
discard = true;
}
}
if (!discard) {
if (mi._static) {
mi.method = env->GetStaticMethodID(bclass, str_method.utf8().get_data(), signature.utf8().get_data());
} else {
mi.method = env->GetMethodID(bclass, str_method.utf8().get_data(), signature.utf8().get_data());
}
ERR_CONTINUE(!mi.method);
java_class->methods[str_method].push_back(mi);
}
env->DeleteLocalRef(obj);
env->DeleteLocalRef(param_types);
}
env->DeleteLocalRef(constructors);
env->DeleteLocalRef(methods);
jobjectArray fields = (jobjectArray)env->CallObjectMethod(bclass, Class_getFields);
int count = env->GetArrayLength(fields);
for (int i = 0; i < count; i++) {
jobject obj = env->GetObjectArrayElement(fields, i);
ERR_CONTINUE(!obj);
jstring name = (jstring)env->CallObjectMethod(obj, Field_getName);
String str_field = jstring_to_string(name, env);
env->DeleteLocalRef(name);
int mods = env->CallIntMethod(obj, Field_getModifiers);
if ((mods & 0x8) && (mods & 0x10) && (mods & 0x1)) { //static final public!
jobject objc = env->CallObjectMethod(obj, Field_get, nullptr);
if (objc) {
uint32_t sig;
String strsig;
jclass cl = env->GetObjectClass(objc);
if (JavaClassWrapper::_get_type_sig(env, cl, sig, strsig)) {
if ((sig & JavaClass::ARG_TYPE_MASK) <= JavaClass::ARG_TYPE_STRING) {
Variant value;
if (JavaClass::_convert_object_to_variant(env, objc, value, sig)) {
java_class->constant_map[str_field] = value;
}
}
}
env->DeleteLocalRef(cl);
}
env->DeleteLocalRef(objc);
}
env->DeleteLocalRef(obj);
}
env->DeleteLocalRef(fields);
return java_class;
}
Ref<JavaClass> JavaClassWrapper::wrap_jclass(jclass p_class, bool p_allow_private_methods_access) {
JNIEnv *env = get_jni_env();
ERR_FAIL_NULL_V(env, Ref<JavaClass>());
jstring class_name = (jstring)env->CallObjectMethod(p_class, Class_getName);
String class_name_string = jstring_to_string(class_name, env);
env->DeleteLocalRef(class_name);
return _wrap(class_name_string, p_allow_private_methods_access);
}
JavaClassWrapper *JavaClassWrapper::singleton = nullptr;
JavaClassWrapper::JavaClassWrapper() {
singleton = this;
JNIEnv *env = get_jni_env();
ERR_FAIL_NULL(env);
jclass bclass = env->FindClass("java/lang/Class");
Class_getDeclaredConstructors = env->GetMethodID(bclass, "getDeclaredConstructors", "()[Ljava/lang/reflect/Constructor;");
Class_getDeclaredMethods = env->GetMethodID(bclass, "getDeclaredMethods", "()[Ljava/lang/reflect/Method;");
Class_getFields = env->GetMethodID(bclass, "getFields", "()[Ljava/lang/reflect/Field;");
Class_getName = env->GetMethodID(bclass, "getName", "()Ljava/lang/String;");
Class_getSuperclass = env->GetMethodID(bclass, "getSuperclass", "()Ljava/lang/Class;");
env->DeleteLocalRef(bclass);
bclass = env->FindClass("java/lang/reflect/Constructor");
Constructor_getParameterTypes = env->GetMethodID(bclass, "getParameterTypes", "()[Ljava/lang/Class;");
Constructor_getModifiers = env->GetMethodID(bclass, "getModifiers", "()I");
env->DeleteLocalRef(bclass);
bclass = env->FindClass("java/lang/reflect/Method");
Method_getParameterTypes = env->GetMethodID(bclass, "getParameterTypes", "()[Ljava/lang/Class;");
Method_getReturnType = env->GetMethodID(bclass, "getReturnType", "()Ljava/lang/Class;");
Method_getName = env->GetMethodID(bclass, "getName", "()Ljava/lang/String;");
Method_getModifiers = env->GetMethodID(bclass, "getModifiers", "()I");
env->DeleteLocalRef(bclass);
bclass = env->FindClass("java/lang/reflect/Field");
Field_getName = env->GetMethodID(bclass, "getName", "()Ljava/lang/String;");
Field_getModifiers = env->GetMethodID(bclass, "getModifiers", "()I");
Field_get = env->GetMethodID(bclass, "get", "(Ljava/lang/Object;)Ljava/lang/Object;");
env->DeleteLocalRef(bclass);
bclass = env->FindClass("java/lang/Boolean");
Boolean_booleanValue = env->GetMethodID(bclass, "booleanValue", "()Z");
env->DeleteLocalRef(bclass);
bclass = env->FindClass("java/lang/Byte");
Byte_byteValue = env->GetMethodID(bclass, "byteValue", "()B");
env->DeleteLocalRef(bclass);
bclass = env->FindClass("java/lang/Character");
Character_characterValue = env->GetMethodID(bclass, "charValue", "()C");
env->DeleteLocalRef(bclass);
bclass = env->FindClass("java/lang/Short");
Short_shortValue = env->GetMethodID(bclass, "shortValue", "()S");
env->DeleteLocalRef(bclass);
bclass = env->FindClass("java/lang/Integer");
Integer_integerValue = env->GetMethodID(bclass, "intValue", "()I");
env->DeleteLocalRef(bclass);
bclass = env->FindClass("java/lang/Long");
Long_longValue = env->GetMethodID(bclass, "longValue", "()J");
env->DeleteLocalRef(bclass);
bclass = env->FindClass("java/lang/Float");
Float_floatValue = env->GetMethodID(bclass, "floatValue", "()F");
env->DeleteLocalRef(bclass);
bclass = env->FindClass("java/lang/Double");
Double_doubleValue = env->GetMethodID(bclass, "doubleValue", "()D");
env->DeleteLocalRef(bclass);
}
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