I am using Spring Flex project 1.5. I wish to create a service with session scope.
#Service("storeService")
#Scope(value = "session", proxyMode = ScopedProxyMode.INTERFACES)
#RemotingDestination(channels = { "my-amf" })
public class StoreService implements IStoreService {
When I access the service, I got No destination error.
org.springframework.flex.core.DefaultExceptionLogger - The following exception occurred during request processing by the BlazeDS MessageBroker and will be serialized back to the client:
flex.messaging.MessageException: No destination with id 'storeService' is registered with any service.
I have no issue if I do not annotate with #Scope, but it is singleton scope not session scope. Am I missing anything?
Problem is solved after I changed proxyMode to ScopedProxyMode.TARGET_CLASS.
Related
I'm developing a spring application (client) that is secured with an OAuth2 provider. This application should do some REST calls to another spring application (resource server). For performing the REST calls, I will use spring's WebClient.
I therefore try to create a bean of type WebClient as can be found in several blogs.
#Configuration
public class AppConfig {
#Bean
public WebClient webClient(ReactiveClientRegistrationRepository clientRegistrations) {
ServerOAuth2AuthorizedClientExchangeFilterFunction oauth =
new ServerOAuth2AuthorizedClientExchangeFilterFunction(clientRegistrations,
new UnAuthenticatedServerOAuth2AuthorizedClientRepository());
oauth.setDefaultClientRegistrationId("myprovider");
return WebClient.builder().filter(oauth).build();
}
}
When starting the application, I get the following error:
The following candidates were found but could not be injected:
- Bean method 'clientRegistrationRepository' in 'ReactiveOAuth2ClientAutoConfiguration' not loaded because NoneNestedConditions 1 matched 0 did not; NestedCondition on ReactiveOAuth2ClientAutoConfiguration.NonServletApplicationCondition.ServletApplicationCondition found 'session' scope
Action:
Consider revisiting the entries above or defining a bean of type 'org.springframework.security.oauth2.client.registration.ReactiveClientRegistrationRepository' in your configuration.
As several websites recommend exactly this code for generating a WebClient instance when using OAuth2 authentication, I'm wondering what I'm doing wrong?
Do you have any suggestions for me?
Thanks.
I got the same issue. I changed the code as provided in the video : https://www.youtube.com/watch?v=1N-xwmoN83w&t=1569s and that worked
#Bean
public WebClient webClient(ClientRegistrationRepository clientRegistrationRepository , OAuth2AuthorizedClientRepository authorizedClientRepository) {
ServletOAuth2AuthorizedClientExchangeFilterFunction oauth =
new ServletOAuth2AuthorizedClientExchangeFilterFunction (clientRegistrationRepository , authorizedClientRepository);
return WebClient.builder().apply(oauth.oauth2Configuration()).build();
}
Hope that helps.
I have the gRPC server code as below:
public void buildServer() {
List<BindableService> theServiceList = new ArrayList<BindableService>();
theServiceList.add(new CreateModuleContentService());
theServiceList.add(new RemoveModuleContentService());
ServerBuilder<?> sb = ServerBuilder.forPort(m_port);
for (BindableService aService : theServiceList) {
sb.addService(aService);
}
m_server = sb.build();
}
and client code as below:
public class JavaMainClass {
public static void main(String[] args) {
CreateModuleService createModuleService = new CreateModuleService();
ESDStandardResponse esdReponse = createModuleService.createAtomicBlock("8601934885970354030", "atm1");
RemoveModuleService moduleService = new RemoveModuleService();
moduleService.removeAtomicBlock("8601934885970354030", esdReponse.getId());
}
}
While I am running the client I am getting an exception as below:
Exception in thread "main" io.grpc.StatusRuntimeException: UNIMPLEMENTED: Method grpc.blocks.operations.ModuleContentServices/createAtomicBlock is unimplemented
at io.grpc.stub.ClientCalls.toStatusRuntimeException(ClientCalls.java:233)
at io.grpc.stub.ClientCalls.getUnchecked(ClientCalls.java:214)
at io.grpc.stub.ClientCalls.blockingUnaryCall(ClientCalls.java:139)
In the above server class, if I am commenting the line theServiceList.add(new RemoveModuleContentService()); then the CreateModuleContentService service is working fine, also without commenting all the services of RemoveModuleContentService class are working as expected, which means the problem is with the first service when another gets added.
Can someone please suggest how can I add two services to Server Builder.
A particular gRPC service can only be implemented once per server. Since the name of the gRPC service in the error message is ModuleContentServices, I'm assuming CreateModuleContentService and RemoveModuleContentService both extend ModuleContentServicesImplBase.
When you add the same service multiple times, the last one wins. The way the generated code works, every method of a service is registered even if you don't implement that particular method. Every service method defaults to a handler that simply returns "UNIMPLEMENTED: Method X is unimplemented". createAtomicBlock isn't implemented in RemoveModuleContentService, so it returns that error.
If you interact with the ServerServiceDefinition returned by bindService(), you can mix-and-match methods a bit more, but this is a more advanced API and is intended more for frameworks to use because it can become verbose to compose every application service individually.
We're having an odd issue with a WebAPI application hosted by another ASP.NET webapp. The WebAPI controllers are all mapped with Ninject but the ASP.NET host site does not use Ninject.
The issue is that any requests to any of the WebAPI controllers fail with a Ninject error and HTTP 500:
"An error occurred when trying to create a controller of type 'MyObjectsController'. Make sure that the controller has a parameterless public constructor."
However, once even a single request to the main webapp is made (such as opening the login page) then the WebAPI calls all work as expected. The WebAPI is registered and initialized as part of the Application_Start global event. The start event is triggered regardless of whether the first request comes in under the WebAPI or the webapp so it's not bypassing the global startup when coming through the WebAPI before the main app. The WebAPI registration is pretty standard stuff:
GlobalConfiguration.Configure(AddressOf WebApiConfig.Register)
And the Register function itself is nothing unusual:
// Web API configuration and services
var cors = new EnableCorsAttribute("*", "*", "*", "X-Pagination");
//To allow cross-origin credentials in Web API
cors.SupportsCredentials = true;
config.EnableCors(cors);
// To disable host-level authentication inside the Web API pipeline and "un-authenticates" the request.
config.SuppressHostPrincipal();
config.Filters.Add(new HostAuthenticationFilter(Startup.OAuthBearerOptions.AuthenticationType));
// Web API routes
var constraintResolver = new DefaultInlineConstraintResolver();
constraintResolver.ConstraintMap.Add("nonzero", typeof(NonZeroConstraint));
//constraintResolver.ConstraintMap.Add("NonEmptyFolderIds", typeof(NonEmptyFolderIdsConstraint));
config.MapHttpAttributeRoutes(constraintResolver);
var jsonFormatter = config.Formatters.OfType<JsonMediaTypeFormatter>().First();
jsonFormatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
The NinjectConfig is also pretty standard:
public static class NinjectConfig
{
/// <summary>
/// THe kernel of Ninject
/// </summary>
public static Lazy<IKernel> CreateKernel = new Lazy<IKernel>(() =>
{
var kernel = new StandardKernel();
kernel.Load(Assembly.GetExecutingAssembly());
RegisterServices(kernel);
return kernel;
});
private static void RegisterServices(KernelBase kernel)
{
kernel.Bind<IMyObjectRepository>().To<MyObjectRepository>().InRequestScope();
...
}
}
An example of the DI usage (again, very basic and standard) is:
public class MyObjectRepository : IMyObjectRepository
{
private readonly IMyOtherObjectRepository _objectRepository;
...
public MyObjectRepository(IMyOtherObjectRepository objectRepository)
{
_objectRepository = objectRepository;
...
}
...
}
We want to avoid the requirement of the initial request to the webapp before the WebAPI is available for requests but nothing seems to be getting us towards a solution.
We initially tried out the IIS preloading/app initialization by setting Start Mode to AlwaysRunning and Start automatically to True in the AppPool config. We also enabled preloadEnabled to true and then added the applicationInitialization config section to the web.config such as the following:
<system.webServer>
...
<applicationInitialization>
<add initializationPage="login.aspx" />
</applicationInitialization>
...
</system.webServer>
However, none of these changes and variations of made any difference to the behavior of the WebAPI. We've scoured the web for more help but are at somewhat of a loss as pretty much everything we've come across points to setting the Start Mode, Start Automatically, preloadEnabled, and applicationInitialization and then it will magically work but that's definitely not our experience.
Does anyone have suggestions or ideas?
Install Ninject integration for WebApi nuget package. It creates a file which initializes Ninject on startup. Here is the doc.
I have got a problem with ejb remote method invocation. For testing I created a ejb project with a statless bean and a simple method, declared in a remote interface. I deployed this project in a JBoss 7.1.
Now I want to call the business method hello in my bean from another class, which is not part of the project and not deployed in that jboss server. So if I understand it correct, this is a normal remote method call from a client.
I wrote my HelloWorldClient, declared the properties for the InitialContext(). But when I run this client, I got a NameNotFoundException. For me it seems like the exception is because of a false jndi-name, but I tried a lot to get the correct one.
On the console I got jndi names from my server for the project, but it doesn't work. Could someone help me solve this problem?
Client with context:
Properties jndiProps = new Properties();
jndiProps.put(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory");
jndiProps.put(Context.URL_PKG_PREFIXES, "org.jboss.ejb.client.naming");
jndiProps.put(Context.PROVIDER_URL,"remote://localhost:4447");
jndiProps.put(Context.SECURITY_PRINCIPAL, "testuser");
jndiProps.put(Context.SECURITY_CREDENTIALS, "testpasswort");
Context ctx = new InitialContext(jndiProps);
HelloWorldRemote hello = (HelloWorldRemote) ctx.lookup("java:global[/ejbproject1]/ejbproject1/HelloWorldBean[/HelloWorldRemote]");
My Bean:
#Stateless(name="hello")
public class HelloWorldBean implements HelloWorldRemote{
#Override
public String hello(String value) {
System.out.println("Say hello to "+value);
return "Hello " + value;
}
the jndi names from the jboss
18:19:07,464 INFO [org.jboss.as.ejb3.deployment.processors.EjbJndiBindingsDeploymentUnitProcessor] (MSC service thread 1-6) JNDI bindings for session bean named hello in deployment unit deployment "ejbproject1.jar" are as follows:
java:global/ejbproject1/hello!interfaces.HelloWorldRemote
java:app/ejbproject1/hello!interfaces.HelloWorldRemote
java:module/hello!interfaces.HelloWorldRemote
java:jboss/exported/ejbproject1/hello!interfaces.HelloWorldRemote
java:global/ejbproject1/hello
java:app/ejbproject1/hello
java:module/hello
and the exception:
javax.naming.NameNotFoundException: global[/ejbproject1]/ejbproject1/HelloWorldBean[/HelloWorldRemote] -- service jboss.naming.context.java.jboss.exported.global[.ejbproject1].ejbproject1.HelloWorldBean[.HelloWorldRemote]
Change from
java:global/ejbproject1/hello!interfaces.HelloWorldRemote
to
java:/ejbproject1/hello!interfaces.HelloWorldRemote
That will work.
I am creating Dynamic Destinations
MessageBroker broker = MessageBroker.getMessageBroker(null);
MessageService service = (MessageService) broker.getService("message-service");
MessageDestination destination = (MessageDestination) service.createDestination("Group1");
if (service.isStarted()) {
destination.start();
}
But I am getting Null Pointer Exception
MessageBroker broker = MessageBroker.getMessageBroker(null);
Can Anyone Help Me
You may be using Spring blazeds integration. Flex, by default uses "__default__" as the messageBroker id in which case your MessageBroker.getMessageBroker(null) holds true. However, Spring uses "_messageBroker" as the broker id. Therefore you might have to use
MessageBroker broker=MessageBroker.getMessageBroker("_messageBroker");
This URL says it even better....
http://forum.springsource.org/showthread.php?t=72964
MessageBroker broker=MessageBroker.getMessageBroker(BeanIds.MESSAGE_BROKER);