/*static*/ void JavaObject::fieldSetter(v8::Local<v8::String> property, v8::Local<v8::Value> value, const v8::AccessorInfo& info) {
v8::HandleScope scope;
JavaObject* self = node::ObjectWrap::Unwrap<JavaObject>(info.This());
JNIEnv *env = self->m_java->getJavaEnv();
JavaScope javaScope(env);
jobject newValue = v8ToJava(env, value);
v8::String::AsciiValue propertyCStr(property);
std::string propertyStr = *propertyCStr;
jobject field = javaFindField(env, self->m_class, propertyStr);
if(field == NULL) {
std::ostringstream errStr;
errStr << "Could not find field " << propertyStr;
v8::Handle<v8::Value> ex = javaExceptionToV8(env, errStr.str());
ThrowException(ex);
return;
}
jclass fieldClazz = env->FindClass("java/lang/reflect/Field");
jmethodID field_set = env->GetMethodID(fieldClazz, "set", "(Ljava/lang/Object;Ljava/lang/Object;)V");
//printf("newValue: %s\n", javaObjectToString(env, newValue).c_str());
// set field value
env->CallObjectMethod(field, field_set, self->m_obj, newValue);
if(env->ExceptionOccurred()) {
std::ostringstream errStr;
errStr << "Could not set field " << propertyStr;
v8::Handle<v8::Value> ex = javaExceptionToV8(env, errStr.str());
ThrowException(ex);
return;
}
}
jobject v8ToJava_javaLong(JNIEnv* env, v8::Local<v8::Object> obj) {
jobject longValue = v8ToJava(env, obj->Get(v8::String::New("longValue")));
jclass longClazz = env->FindClass("java/lang/Long");
jmethodID long_constructor = env->GetMethodID(longClazz, "<init>", "(Ljava/lang/String;)V");
jobject jobj = env->NewObject(longClazz, long_constructor, longValue);
return jobj;
}
/*static*/ v8::Handle<v8::Value> JavaObject::methodCallSync(const v8::Arguments& args) {
v8::HandleScope scope;
JavaObject* self = node::ObjectWrap::Unwrap<JavaObject>(args.This());
JNIEnv *env = self->m_java->getJavaEnv();
JavaScope javaScope(env);
v8::String::AsciiValue methodName(args.Data());
std::string methodNameStr = *methodName;
int argsStart = 0;
int argsEnd = args.Length();
jobjectArray methodArgs = v8ToJava(env, args, argsStart, argsEnd);
jobject method = javaFindMethod(env, self->m_class, methodNameStr, methodArgs);
if(method == NULL) {
std::string msg = methodNotFoundToString(env, self->m_class, methodNameStr, false, args, argsStart, argsEnd);
v8::Handle<v8::Value> ex = javaExceptionToV8(env, msg);
return ThrowException(ex);
}
// run
v8::Handle<v8::Value> callback = v8::Undefined();
InstanceMethodCallBaton* baton = new InstanceMethodCallBaton(self->m_java, self, method, methodArgs, callback);
v8::Handle<v8::Value> result = baton->runSync();
delete baton;
if(result->IsNativeError()) {
return ThrowException(result);
}
return scope.Close(result);
}
/*static*/ v8::Handle<v8::Value> JavaObject::methodCall(const v8::Arguments& args) {
v8::HandleScope scope;
JavaObject* self = node::ObjectWrap::Unwrap<JavaObject>(args.This());
JNIEnv *env = self->m_java->getJavaEnv();
JavaScope javaScope(env);
v8::String::AsciiValue methodName(args.Data());
std::string methodNameStr = *methodName;
int argsStart = 0;
int argsEnd = args.Length();
// arguments
ARGS_BACK_CALLBACK();
if(!callbackProvided && methodNameStr == "toString") {
return methodCallSync(args);
}
jobjectArray methodArgs = v8ToJava(env, args, argsStart, argsEnd);
jobject method = javaFindMethod(env, self->m_class, methodNameStr, methodArgs);
if(method == NULL) {
std::string msg = methodNotFoundToString(env, self->m_class, methodNameStr, false, args, argsStart, argsEnd);
EXCEPTION_CALL_CALLBACK(msg);
return v8::Undefined();
}
// run
InstanceMethodCallBaton* baton = new InstanceMethodCallBaton(self->m_java, self, method, methodArgs, callback);
baton->run();
END_CALLBACK_FUNCTION("\"Method '" << methodNameStr << "' called without a callback did you mean to use the Sync version?\"");
}
jobject v8ToJava(JNIEnv* env, v8::Local<v8::Value> arg) {
if(arg->IsNull() || arg->IsUndefined()) {
return NULL;
}
if(arg->IsArray()) {
v8::Local<v8::Array> array = v8::Array::Cast(*arg);
uint32_t arraySize = array->Length();
jclass objectClazz = env->FindClass("java/lang/Object");
jobjectArray result = env->NewObjectArray(arraySize, objectClazz, NULL);
for(uint32_t i=0; i<arraySize; i++) {
jobject val = v8ToJava(env, array->Get(i));
env->SetObjectArrayElement(result, i, val);
}
return result;
}
if(arg->IsString()) {
v8::String::AsciiValue val(arg->ToString());
return env->NewStringUTF(*val);
}
if(arg->IsInt32() || arg->IsUint32()) {
jint val = arg->ToInt32()->Value();
jclass clazz = env->FindClass("java/lang/Integer");
jmethodID constructor = env->GetMethodID(clazz, "<init>", "(I)V");
return env->NewObject(clazz, constructor, val);
}
if(arg->IsNumber()) {
jdouble val = arg->ToNumber()->Value();
jclass clazz = env->FindClass("java/lang/Double");
jmethodID constructor = env->GetMethodID(clazz, "<init>", "(D)V");
return env->NewObject(clazz, constructor, val);
}
if(arg->IsBoolean()) {
jboolean val = arg->ToBoolean()->Value();
jclass clazz = env->FindClass("java/lang/Boolean");
jmethodID constructor = env->GetMethodID(clazz, "<init>", "(Z)V");
return env->NewObject(clazz, constructor, val);
}
if(arg->IsObject()) {
v8::Local<v8::Object> obj = v8::Object::Cast(*arg);
v8::String::AsciiValue constructorName(obj->GetConstructorName());
if(strcmp(*constructorName, "JavaObject") == 0) {
JavaObject* javaObject = node::ObjectWrap::Unwrap<JavaObject>(obj);
return javaObject->getObject();
}
}
// TODO: handle other arg types
v8::String::AsciiValue typeStr(arg);
printf("Unhandled type: %s\n", *typeStr);
return NULL;
}
std::string methodNotFoundToString(JNIEnv *env, jclass clazz, std::string methodName, bool constructor, const v8::Arguments& args, int argStart, int argEnd) {
std::ostringstream startOfMessage;
std::ostringstream msg;
jclass classClazz = env->FindClass("java/lang/Class");
jmethodID class_getName = env->GetMethodID(classClazz, "getName", "()Ljava/lang/String;");
startOfMessage << "Could not find method \"" << methodName.c_str() << "(";
for(int i=argStart; i<argEnd; i++) {
jobject val = v8ToJava(env, args[i]);
if(i != argStart) {
startOfMessage << ", ";
}
if(val == NULL) {
startOfMessage << "(null)";
} else {
jclass argClass = env->GetObjectClass(val);
jstring argClassNameJava = (jstring)env->CallObjectMethod(argClass, class_getName);
std::string argClassName = javaToString(env, argClassNameJava);
startOfMessage << argClassName;
}
}
startOfMessage << ")\" on class \""<< javaObjectToString(env, clazz).c_str() << "\".";
msg << startOfMessage.str() << " Possible matches:\n";
jclass memberClazz = env->FindClass("java/lang/reflect/Member");
jmethodID member_getName = env->GetMethodID(memberClazz, "getName", "()Ljava/lang/String;");
std::list<jobject> methods;
if(constructor) {
javaReflectionGetConstructors(env, clazz, &methods);
} else {
javaReflectionGetMethods(env, clazz, &methods, true);
}
int count = 0;
for(std::list<jobject>::iterator it = methods.begin(); it != methods.end(); ++it) {
jstring methodNameTestJava = (jstring)env->CallObjectMethod(*it, member_getName);
std::string methodNameTest = javaToString(env, methodNameTestJava);
if(methodNameTest == methodName) {
msg << " " << javaObjectToString(env, *it).c_str() << "\n";
count++;
}
}
if(count == 0) {
std::ostringstream noMethodsMsg;
noMethodsMsg << startOfMessage.str() << " No methods with that name.";
return noMethodsMsg.str();
}
return msg.str();
}
jobjectArray v8ToJava(JNIEnv* env, const v8::Arguments& args, int start, int end) {
jclass clazz = env->FindClass("java/lang/Object");
jobjectArray results = env->NewObjectArray(end-start, clazz, NULL);
for(int i=start; i<end; i++) {
jobject val = v8ToJava(env, args[i]);
env->SetObjectArrayElement(results, i - start, val);
}
return results;
}
jobject v8ToJava(JNIEnv* env, v8::Local<v8::Value> arg) {
if(arg.IsEmpty() || arg->IsNull() || arg->IsUndefined()) {
return NULL;
}
if(arg->IsArray()) {
v8::Local<v8::Array> array = v8::Array::Cast(*arg);
uint32_t arraySize = array->Length();
jclass objectClazz = env->FindClass("java/lang/Object");
jobjectArray result = env->NewObjectArray(arraySize, objectClazz, NULL);
for(uint32_t i=0; i<arraySize; i++) {
jobject val = v8ToJava(env, array->Get(i));
env->SetObjectArrayElement(result, i, val);
}
return result;
}
if(arg->IsString()) {
v8::String::Utf8Value val(arg->ToString());
return env->NewStringUTF(*val);
}
if(arg->IsInt32() || arg->IsUint32()) {
jint val = arg->ToInt32()->Value();
jclass clazz = env->FindClass("java/lang/Integer");
jmethodID constructor = env->GetMethodID(clazz, "<init>", "(I)V");
return env->NewObject(clazz, constructor, val);
}
if(arg->IsNumber()) {
jdouble val = arg->ToNumber()->Value();
jclass clazz = env->FindClass("java/lang/Double");
jmethodID constructor = env->GetMethodID(clazz, "<init>", "(D)V");
return env->NewObject(clazz, constructor, val);
}
if(arg->IsBoolean()) {
jboolean val = arg->ToBoolean()->Value();
jclass clazz = env->FindClass("java/lang/Boolean");
jmethodID constructor = env->GetMethodID(clazz, "<init>", "(Z)V");
return env->NewObject(clazz, constructor, val);
}
if(arg->IsObject()) {
v8::Local<v8::Object> obj = v8::Object::Cast(*arg);
v8::Local<v8::Value> isJavaObject = obj->GetHiddenValue(v8::String::New(V8_HIDDEN_MARKER_JAVA_OBJECT));
if(!isJavaObject.IsEmpty() && isJavaObject->IsBoolean()) {
return v8ToJava_javaObject(env, obj);
}
v8::Local<v8::Value> isJavaLong = obj->GetHiddenValue(v8::String::New(V8_HIDDEN_MARKER_JAVA_LONG));
if(!isJavaLong.IsEmpty() && isJavaLong->IsBoolean()) {
return v8ToJava_javaLong(env, obj);
}
}
// TODO: handle other arg types
v8::String::AsciiValue typeStr(arg);
printf("v8ToJava: Unhandled type: %s\n", *typeStr);
return NULL;
}
void EIO_AfterCallJs(uv_work_t* req, int status) {
#else
void EIO_AfterCallJs(uv_work_t* req) {
#endif
DynamicProxyData* dynamicProxyData = static_cast<DynamicProxyData*>(req->data);
if(!dynamicProxyDataVerify(dynamicProxyData)) {
return;
}
dynamicProxyData->result = NULL;
JNIEnv* env;
int ret = dynamicProxyData->java->getJvm()->GetEnv((void**)&env, JNI_BEST_VERSION);
if (ret != JNI_OK) {
dynamicProxyData->throwableClass = "java/lang/IllegalStateException";
dynamicProxyData->throwableMessage = "Could not retrieve JNIEnv: jvm->GetEnv returned " + to_string<int>(ret);
dynamicProxyData->done = DYNAMIC_PROXY_JS_ERROR;
return;
}
Nan::HandleScope scope;
v8::Array* v8Args;
v8::Function* fn;
v8::Handle<v8::Value>* argv;
int argc;
int i;
v8::Local<v8::Value> v8Result;
jobject javaResult;
v8::Local<v8::Object> dynamicProxyDataFunctions = Nan::New(dynamicProxyData->functions);
v8::Local<v8::Value> fnObj = dynamicProxyDataFunctions->Get(Nan::New<v8::String>(dynamicProxyData->methodName.c_str()).ToLocalChecked());
if(fnObj->IsUndefined() || fnObj->IsNull()) {
dynamicProxyData->throwableClass = "java/lang/NoSuchMethodError";
dynamicProxyData->throwableMessage = "Could not find js function " + dynamicProxyData->methodName;
dynamicProxyData->done = DYNAMIC_PROXY_JS_ERROR;
return;
}
if(!fnObj->IsFunction()) {
dynamicProxyData->throwableClass = "java/lang/IllegalStateException";
dynamicProxyData->throwableMessage = dynamicProxyData->methodName + " is not a function";
dynamicProxyData->done = DYNAMIC_PROXY_JS_ERROR;
return;
}
fn = v8::Function::Cast(*fnObj);
if(dynamicProxyData->args) {
v8Args = v8::Array::Cast(*javaArrayToV8(dynamicProxyData->java, env, dynamicProxyData->args));
argc = v8Args->Length();
} else {
argc = 0;
}
argv = new v8::Handle<v8::Value>[argc];
for(i=0; i<argc; i++) {
argv[i] = v8Args->Get(i);
}
Nan::TryCatch tryCatch;
tryCatch.SetCaptureMessage(true);
v8Result = fn->Call(dynamicProxyDataFunctions, argc, argv);
delete[] argv;
if (tryCatch.HasCaught()) {
dynamicProxyData->throwableClass = "node/NodeJsException";
v8::String::Utf8Value message(tryCatch.Message()->Get());
dynamicProxyData->throwableMessage = std::string(*message);
tryCatch.Reset();
dynamicProxyData->done = DYNAMIC_PROXY_JS_ERROR;
return;
}
if(!dynamicProxyDataVerify(dynamicProxyData)) {
return;
}
javaResult = v8ToJava(env, v8Result);
if(javaResult == NULL) {
dynamicProxyData->result = NULL;
} else {
dynamicProxyData->result = env->NewGlobalRef(javaResult);
}
dynamicProxyData->done = true;
}