C++ JEnv::CallVoidMethod方法代码示例

/* *
 * private method that takes debug message as json from v8
 * after it gets the message the message handler passes it to enqueueMessage method in java
 */
void JsDebugger::MyMessageHandler(const v8::Debug::Message& message)
{
	if (s_jsDebugger == nullptr)
	{
		return;
	}

	auto json = message.GetJSON();
	auto str = ConvertToString(json);

	JEnv env;
	JniLocalRef s(env.NewStringUTF(str.c_str()));
	env.CallVoidMethod(s_jsDebugger, s_EnqueueMessage, (jstring) s);
}

void NativePlatform::AppInitCallback(const v8::FunctionCallbackInfo<v8::Value>& args)
{
	try {
	auto isolate = Isolate::GetCurrent();

	if (args.Length() != 1)
	{
		throw NativeScriptException(string("Application should be initialized with single parameter"));
	}
	if (!args[0]->IsObject())
	{
		throw NativeScriptException(string("Application should be initialized with single object parameter containing overridden methods"));
	}

	// TODO: find another way to get "com/tns/NativeScriptApplication" metadata (move it to more appropriate place)
	auto node = MetadataNode::GetOrCreate("com/tns/NativeScriptApplication");
	auto appInstance = node->CreateJSWrapper(isolate);
	DEBUG_WRITE("Application object created id: %d", appInstance->GetIdentityHash());

	auto implementationObject = args[0]->ToObject();
	implementationObject->SetHiddenValue(V8StringConstants::GetClassImplementationObject(), External::New(isolate, node));
	DEBUG_WRITE("Application object implementation object is with id: %d", implementationObject->GetIdentityHash());
	implementationObject->SetPrototype(appInstance->GetPrototype());
	bool appSuccess = appInstance->SetPrototype(implementationObject);
	if (!appSuccess)
	{
		throw NativeScriptException(string("Application could not be initialized correctly"));
	}

	jweak applicationObject = g_objectManager->GetJavaObjectByID(AppJavaObjectID);

	JEnv env;
	jclass appClass = env.FindClass("com/tns/NativeScriptApplication");
	g_objectManager->Link(appInstance, AppJavaObjectID, appClass);

	JniLocalRef applicationClass(env.GetObjectClass(applicationObject));
	jmethodID setNativeScriptOverridesMethodId = env.GetMethodID((jclass)applicationClass, "setNativeScriptOverrides", "([Ljava/lang/String;)V");
	jobjectArray methodOverrides = NativeScriptRuntime::GetMethodOverrides(env, implementationObject);
	env.CallVoidMethod(applicationObject, setNativeScriptOverridesMethodId, methodOverrides);
	} catch (NativeScriptException& e) {
		e.ReThrowToV8();
	}
	catch (exception e) {
		DEBUG_WRITE("Error: c++ exception: %s", e.what());
	}
	catch (...) {
		DEBUG_WRITE("Error: c++ exception!");
	}
}

void JsDebugger::ConsoleMessage(const v8::FunctionCallbackInfo<v8::Value>& args)
{
	if ((args.Length() > 0) && args[0]->IsString())
	{
		std::string message = ConvertToString(args[0]->ToString());
		//jboolean isError = (jboolean) = args[1]->ToBoolean()->BooleanValue();


		std:string level = "log";
		if (args.Length() > 1  && args[1]->IsString())
		{
			level = ConvertToString(args[1]->ToString());
		}

		string srcFileName = "";
		int lineNumber = 0;
		int columnNumber = 0;

		auto stackTrace = StackTrace::CurrentStackTrace(Isolate::GetCurrent(), 2, StackTrace::kOverview);
		if (!stackTrace.IsEmpty())
		{
			auto frame = stackTrace->GetFrame(1);
			if (!frame.IsEmpty())
			{
				auto scriptName = frame->GetScriptName();
				if (!scriptName.IsEmpty())
				{
					srcFileName = ConvertToString(scriptName);
				}

				lineNumber = frame->GetLineNumber();
				columnNumber = frame->GetColumn();
			}
		}




		//    			var consoleEvent = {
		//	    			"seq":0,
		//	    			"type":"event",
		//	    			"event":"messageAdded",
		//	    			"success":true,
		//	    			"body":
		//	    			{
		//	    				"message":
		//	    				{
		//	    			        "source":"console-api",
		//	    			        "type": "log",
		//	    			        "level": 'error',
		//	    			        "line": 0,
		//	    			        "column": 0,
		//	    			        "url": "",
		//	    			        "groupLevel": 7,
		//	    			        "repeatCount": 1,
		//	    			        "text": "My message"
		//	    			    }
		//	    			}
		//    			};

		stringstream consoleEventSS;
		consoleEventSS << "{\"seq\":0, \"type\":\"event\", \"event\":\"messageAdded\", \"success\":true, \"body\": { \"message\": { \"source\":\"console-api\", "
				<< " \"type\": \"log\","
				<< " \"level\": \"" << level << "\", "
				<< " \"line\": " << lineNumber << ","
				<< " \"column\": " << columnNumber << ","
				<< " \"url\" : \"" << srcFileName << "\","
				<< " \"groupLevel\": 7, \"repeatCount\": 1, "
				<< " \"text\": \"" << message << "\" } } }";


		JEnv env;
		JniLocalRef s(env.NewStringUTF(consoleEventSS.str().c_str()));
		env.CallVoidMethod(s_jsDebugger, s_EnqueueMessage, (jstring) s);
	}
}