Hi Reza,
not really. Client is _not_ (and should not be) automatically notified
about error on server side (when it is not violation of WebSocket
protocol and/or "critical" error which will cause closing current
connection.
Error should be propagated to @OnError annotated method on *server*
endpoint and it is up to application logic to notify client about
malformed message.
Anyway, I think your sample demonstrates usecase we actually don't have
in our test so we will add something similar leveraging BeanValidation.
Thanks and regards,
Pavel
On 8/8/13 11:06 PM, Reza Rahman wrote:
> I have a pretty simple chat server that uses Bean Validation 1.1 to
> validate an inbound WebSocket message like so:
>
> @OnMessage
> public void message(@Valid ChatMessage message) {
>
> The validation part is working correctly (i.e. I can make the
> validation fail). However, the part that I'm finding surprising is the
> fact that when the validation fails, the websocket client does not
> receive an error message? I just see the below error message on the
> console and the @OnMessage processing is blocked (which is desirable).
> Is this correct? Should it be fixed such that an error is sent back to
> the client when validation fails (a la JAX-RS 2)? My code is attached
> in the zip.
>
> WARNING: EJB5184:A system exception occurred during an invocation on
> EJB ChatServer, method: public void
> org.example.chat.server.ChatServer.message(org.example.chat.server.ChatMessage)
> WARNING: javax.ejb.EJBException
> at
> com.sun.ejb.containers.EJBContainerTransactionManager.processSystemException(EJBContainerTransactionManager.java:748)
> at
> com.sun.ejb.containers.EJBContainerTransactionManager.completeNewTx(EJBContainerTransactionManager.java:698)
> at
> com.sun.ejb.containers.EJBContainerTransactionManager.postInvokeTx(EJBContainerTransactionManager.java:503)
> at
> com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4475)
> at
> com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2009)
> at
> com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1979)
> at
> com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:220)
> at
> com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
> at com.sun.proxy.$Proxy305.message(Unknown Source)
> at
> org.example.chat.server.__EJB31_Generated__ChatServer__Intf____Bean__.message(Unknown
> Source)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at
> org.jboss.weld.util.reflection.Reflections.invokeAndUnwrap(Reflections.java:396)
> at
> org.jboss.weld.bean.proxy.EnterpriseBeanProxyMethodHandler.invoke(EnterpriseBeanProxyMethodHandler.java:108)
> at
> org.jboss.weld.bean.proxy.EnterpriseTargetBeanInstance.invoke(EnterpriseTargetBeanInstance.java:56)
> at
> org.jboss.weld.bean.proxy.InjectionPointPropagatingEnterpriseTargetBeanInstance.invoke(InjectionPointPropagatingEnterpriseTargetBeanInstance.java:63)
> at
> org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:101)
> at
> org.example.chat.server.ChatServer$Proxy$_$$_Weld$EnterpriseProxy$.message(Unknown
> Source)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at
> org.glassfish.tyrus.core.AnnotatedEndpoint.callMethod(AnnotatedEndpoint.java:431)
> at
> org.glassfish.tyrus.core.AnnotatedEndpoint.access$100(AnnotatedEndpoint.java:83)
> at
> org.glassfish.tyrus.core.AnnotatedEndpoint$WholeHandler$1.onMessage(AnnotatedEndpoint.java:518)
> at
> org.glassfish.tyrus.core.SessionImpl.notifyMessageHandlers(SessionImpl.java:389)
> at
> org.glassfish.tyrus.core.EndpointWrapper.onMessage(EndpointWrapper.java:495)
> at
> org.glassfish.tyrus.server.TyrusEndpoint.onMessage(TyrusEndpoint.java:174)
> at
> org.glassfish.tyrus.websockets.DefaultWebSocket.onMessage(DefaultWebSocket.java:156)
> at
> org.glassfish.tyrus.websockets.frametypes.TextFrameType.respond(TextFrameType.java:66)
> at
> org.glassfish.tyrus.websockets.DataFrame.respond(DataFrame.java:102)
> at
> org.glassfish.tyrus.servlet.TyrusHttpUpgradeHandler.onDataAvailable(TyrusHttpUpgradeHandler.java:113)
> at
> org.apache.catalina.connector.InputBuffer$ReadHandlerImpl.processDataAvailable(InputBuffer.java:488)
> at
> org.apache.catalina.connector.InputBuffer$ReadHandlerImpl.onDataAvailable(InputBuffer.java:453)
> at
> org.glassfish.grizzly.http.io.InputBuffer.append(InputBuffer.java:855)
> at
> org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:222)
> at
> org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
> at
> org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
> at
> org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
> at
> org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
> at
> org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
> at
> org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
> at
> org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
> at
> org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
> at
> org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
> at
> org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
> at
> org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
> at
> org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
> at
> org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
> at java.lang.Thread.run(Thread.java:722)
> Caused by: javax.validation.ConstraintViolationException: 1 constraint
> violation(s) occurred during method validation.
> Constructor or Method: public void
> org.example.chat.server.ChatServer.message(org.example.chat.server.ChatMessage)
> Argument values: [org.example.chat.server.ChatMessage_at_3197e3fa]
> Constraint violations:
> (1) Kind: PROPERTY
> message: size must be between 1 and 255
> root bean: org.example.chat.server.ChatServer_at_2eedd120
> property path: message.arg0.message
> constraint:
> @javax.validation.constraints.Size(message={javax.validation.constraints.Size.message},
> min=1, max=255, payload=[], groups=[])
> at
> org.hibernate.validator.internal.cdi.interceptor.ValidationInterceptor.validateMethodInvocation(ValidationInterceptor.java:81)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at
> com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
> at
> com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
> at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:582)
> at
> org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:55)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at
> com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
> at
> com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
> at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:582)
> at
> com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doCall(SystemInterceptorProxy.java:163)
> at
> com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:140)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at
> com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
> at
> com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
> at
> com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:369)
> at
> com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:4667)
> at
> com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4655)
> at
> com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:212)
> ... 45 more