private StreamListenerMessageHandler buildStreamListener(Class<?> handlerClass, String handlerMethodName, Class<?>... parameters) throws Exception { String channelName = "reply_" + System.nanoTime(); GenericApplicationContext context = new GenericApplicationContext(); context.getBeanFactory().registerSingleton(channelName, new QueueChannel()); Method m = ReflectionUtils.findMethod(handlerClass, handlerMethodName, parameters); InvocableHandlerMethod method = new InvocableHandlerMethod(this, m); HandlerMethodArgumentResolverComposite resolver = new HandlerMethodArgumentResolverComposite(); CompositeMessageConverterFactory factory = new CompositeMessageConverterFactory(); resolver.addResolver(new PayloadArgumentResolver( factory.getMessageConverterForAllRegistered())); method.setMessageMethodArgumentResolvers(resolver); Constructor<?> c = ReflectionUtils.accessibleConstructor( StreamListenerMessageHandler.class, InvocableHandlerMethod.class, boolean.class, String[].class); StreamListenerMessageHandler handler = (StreamListenerMessageHandler) c .newInstance(method, false, new String[] { }); handler.setOutputChannelName(channelName); handler.setBeanFactory(context); handler.afterPropertiesSet(); context.refresh(); return handler; }
public HandlerMethodService(ConversionService conversionService, List<HandlerMethodArgumentResolver> customArgumentResolvers, ObjectMapper objectMapper, ApplicationContext applicationContext) { this.conversionService = conversionService; this.parameterNameDiscoverer = new DefaultParameterNameDiscoverer(); this.argumentResolvers = new HandlerMethodArgumentResolverComposite(); ConfigurableBeanFactory beanFactory = ClassUtils.isAssignableValue( ConfigurableApplicationContext.class, applicationContext) ? ((ConfigurableApplicationContext) applicationContext) .getBeanFactory() : null; this.argumentResolvers.addResolver( new HeaderMethodArgumentResolver(this.conversionService, beanFactory)); this.argumentResolvers.addResolver(new HeadersMethodArgumentResolver()); this.argumentResolvers.addResolver(new WampMessageMethodArgumentResolver()); this.argumentResolvers.addResolver(new PrincipalMethodArgumentResolver()); this.argumentResolvers.addResolver(new WampSessionIdMethodArgumentResolver()); this.argumentResolvers.addResolvers(customArgumentResolvers); this.objectMapper = objectMapper; }