void FieldAccessor::SetJavaField(Isolate *isolate, const Local<Object>& target, const Local<Value>& value, FieldCallbackData *fieldData) { JEnv env; HandleScope handleScope(isolate); auto runtime = Runtime::GetRuntime(isolate); auto objectManager = runtime->GetObjectManager(); JniLocalRef targetJavaObject; const auto& fieldTypeName = fieldData->signature; auto isStatic = fieldData->isStatic; auto isPrimitiveType = fieldTypeName.size() == 1; auto isFieldArray = fieldTypeName[0] == '['; if (fieldData->fid == nullptr) { auto fieldJniSig = isPrimitiveType ? fieldTypeName : (isFieldArray ? fieldTypeName : ("L" + fieldTypeName + ";")); if (isStatic) { fieldData->clazz = env.FindClass(fieldData->declaringType); assert(fieldData->clazz != nullptr); fieldData->fid = env.GetStaticFieldID(fieldData->clazz, fieldData->name, fieldJniSig); assert(fieldData->fid != nullptr); } else { fieldData->clazz = env.FindClass(fieldData->declaringType); assert(fieldData->clazz != nullptr); fieldData->fid = env.GetFieldID(fieldData->clazz, fieldData->name, fieldJniSig); assert(fieldData->fid != nullptr); } } if (!isStatic) { targetJavaObject = objectManager->GetJavaObjectByJsObject(target); if (targetJavaObject.IsNull()) { stringstream ss; ss << "Cannot access property '" << fieldData->name << "' because there is no corresponding Java object"; throw NativeScriptException(ss.str()); } } auto fieldId = fieldData->fid; auto clazz = fieldData->clazz; if (isPrimitiveType) { switch (fieldTypeName[0]) { case 'Z': //bool { //TODO: validate value is a boolean before calling if (isStatic) { env.SetStaticBooleanField(clazz, fieldId, value->BooleanValue()); } else { env.SetBooleanField(targetJavaObject, fieldId, value->BooleanValue()); } break; } case 'B': //byte { //TODO: validate value is a byte before calling if (isStatic) { env.SetStaticByteField(clazz, fieldId, value->Int32Value()); } else { env.SetByteField(targetJavaObject, fieldId, value->Int32Value()); } break; } case 'C': //char { //TODO: validate value is a single char String::Utf8Value stringValue(value->ToString()); JniLocalRef value(env.NewStringUTF(*stringValue)); const char* chars = env.GetStringUTFChars(value, 0); if (isStatic) { env.SetStaticCharField(clazz, fieldId, chars[0]); } else { env.SetCharField(targetJavaObject, fieldId, chars[0]); } env.ReleaseStringUTFChars(value, chars); break; } case 'S': //short { //TODO: validate value is a short before calling if (isStatic) { env.SetStaticShortField(clazz, fieldId, value->Int32Value()); } else { env.SetShortField(targetJavaObject, fieldId, value->Int32Value()); } break; } case 'I': //int { //TODO: validate value is a int before calling if (isStatic) { env.SetStaticIntField(clazz, fieldId, value->Int32Value()); } else { env.SetIntField(targetJavaObject, fieldId, value->Int32Value()); } break; } case 'J': //long { jlong longValue = static_cast<jlong>(ArgConverter::ConvertToJavaLong(value)); if (isStatic) { env.SetStaticLongField(clazz, fieldId, longValue); } else { env.SetLongField(targetJavaObject, fieldId, longValue); } break; } case 'F': //float { if (isStatic) { env.SetStaticFloatField(clazz, fieldId, static_cast<jfloat>(value->NumberValue())); } else { env.SetFloatField(targetJavaObject, fieldId, static_cast<jfloat>(value->NumberValue())); } break; } case 'D': //double { if (isStatic) { env.SetStaticDoubleField(clazz, fieldId, value->NumberValue()); } else { env.SetDoubleField(targetJavaObject, fieldId, value->NumberValue()); } break; } default: { stringstream ss; ss << "(InternalError): in FieldAccessor::SetJavaField: Unknown field type: '" << fieldTypeName[0] << "'"; throw NativeScriptException(ss.str()); } } } else { bool isString = fieldTypeName == "java/lang/String"; JniLocalRef result; if (!value->IsNull()) { if (isString) { //TODO: validate valie is a string; result = ConvertToJavaString(value); } else { auto objectWithHiddenID = value->ToObject(); result = objectManager->GetJavaObjectByJsObject(objectWithHiddenID); } } if (isStatic) { env.SetStaticObjectField(clazz, fieldId, result); } else { env.SetObjectField(targetJavaObject, fieldId, result); } } }
void FieldAccessor::SetJavaField(const Local<Object>& target, const Local<Value>& value, FieldCallbackData *fieldData) { JEnv env; auto isolate = Isolate::GetCurrent(); HandleScope handleScope(isolate); jweak targetJavaObject; const auto& fieldTypeName = fieldData->signature; auto isStatic = fieldData->isStatic; auto isPrimitiveType = fieldTypeName.size() == 1; auto isFieldArray = fieldTypeName[0] == '['; if (fieldData->fid == nullptr) { auto fieldJniSig = isPrimitiveType ? fieldTypeName : (isFieldArray ? fieldTypeName : ("L" + fieldTypeName + ";")); if (isStatic) { fieldData->clazz = env.FindClass(fieldData->declaringType); assert(fieldData->clazz != nullptr); fieldData->fid = env.GetStaticFieldID(fieldData->clazz, fieldData->name, fieldJniSig); assert(fieldData->fid != nullptr); } else { fieldData->clazz = env.FindClass(fieldData->declaringType); assert(fieldData->clazz != nullptr); fieldData->fid = env.GetFieldID(fieldData->clazz, fieldData->name, fieldJniSig); assert(fieldData->fid != nullptr); } } if (!isStatic) { targetJavaObject = objectManager->GetJavaObjectByJsObject(target); } auto fieldId = fieldData->fid; auto clazz = fieldData->clazz; if (isPrimitiveType) { switch (fieldTypeName[0]) { case 'Z': //bool { //TODO: validate value is a boolean before calling if (isStatic) { env.SetStaticBooleanField(clazz, fieldId, value->BooleanValue()); } else { env.SetBooleanField(targetJavaObject, fieldId, value->BooleanValue()); } break; } case 'B': //byte { //TODO: validate value is a byte before calling if (isStatic) { env.SetStaticByteField(clazz, fieldId, value->Int32Value()); } else { env.SetByteField(targetJavaObject, fieldId, value->Int32Value()); } break; } case 'C': //char { //TODO: validate value is a single char String::Utf8Value stringValue(value->ToString()); JniLocalRef value(env.NewStringUTF(*stringValue)); const char* chars = env.GetStringUTFChars(value, 0); if (isStatic) { env.SetStaticCharField(clazz, fieldId, chars[0]); } else { env.SetCharField(targetJavaObject, fieldId, chars[0]); } env.ReleaseStringUTFChars(value, chars); break; } case 'S': //short { //TODO: validate value is a short before calling if (isStatic) { env.SetStaticShortField(clazz, fieldId, value->Int32Value()); } else { env.SetShortField(targetJavaObject, fieldId, value->Int32Value()); } break; } case 'I': //int { //TODO: validate value is a int before calling if (isStatic) { env.SetStaticIntField(clazz, fieldId, value->Int32Value()); } else { env.SetIntField(targetJavaObject, fieldId, value->Int32Value()); } break; } case 'J': //long { jlong longValue = static_cast<jlong>(ArgConverter::ConvertToJavaLong(value)); if (isStatic) { env.SetStaticLongField(clazz, fieldId, longValue); } else { env.SetLongField(targetJavaObject, fieldId, longValue); } break; } case 'F': //float { if (isStatic) { env.SetStaticFloatField(clazz, fieldId, static_cast<jfloat>(value->NumberValue())); } else { env.SetFloatField(targetJavaObject, fieldId, static_cast<jfloat>(value->NumberValue())); } break; } case 'D': //double { if (isStatic) { env.SetStaticDoubleField(clazz, fieldId, value->NumberValue()); } else { env.SetDoubleField(targetJavaObject, fieldId, value->NumberValue()); } break; } default: { // TODO: ASSERT_FAIL("Unknown field type"); break; } } } else { bool isString = fieldTypeName == "java/lang/String"; jobject result = nullptr; if(!value->IsNull()) { if (isString) { //TODO: validate valie is a string; result = ConvertToJavaString(value); } else { auto objectWithHiddenID = value->ToObject(); result =objectManager->GetJavaObjectByJsObject(objectWithHiddenID); } } if (isStatic) { env.SetStaticObjectField(clazz, fieldId, result); } else { env.SetObjectField(targetJavaObject, fieldId, result); } if (isString) { env.DeleteLocalRef(result); } } }