Has anyone succesfully used the CXF HttpConduitFeature for DOSGi ?
Looking at the CXF code for HttpConduitFeature.java
public class HttpConduitFeature extends DelegatingFeature<HttpConduitFeature.Portable> {
public HttpConduitFeature() {
super(new Portable());
}
public void setConduitConfig(HttpConduitConfig conduitConfig) {
delegate.setConduitConfig(conduitConfig);
}
public static class Portable implements AbstractPortableFeature {
private HttpConduitConfig conduitConfig;
#Override
public void initialize(Client client, Bus bus) {
Conduit conduit = client.getConduit();
if (conduitConfig != null && conduit instanceof HTTPConduit) {
conduitConfig.apply((HTTPConduit)conduit);
}
}
public void setConduitConfig(HttpConduitConfig conduitConfig) {
this.conduitConfig = conduitConfig;
}
}
}
And this method from the class JAXRSClientFactoryBean.java
protected void applyFeatures(AbstractClient client) {
if (getFeatures() != null) {
getFeatures().forEach(feature -> {
feature.initialize(client.getConfiguration(), getBus());
});
}
}
Which is what happens from the RsProvider-class in CXF-DOSGi, I don't understand how the initialize() from the HttpConduitFeature.Portable class will ever get called..
I tried to create my own implementation, a copy from HttpConduitFeature, but with an override of the method initialize(final InterceptorProvider interceptorProvider, final Bus bus), but then I have nothing to add the conduitConfig to. I don't see how I can make progress here.
Anyone has a better idea to add a Basic Authentication AuthorizationPolicy to my DOSGi client ? This was my attempt :
public class BasicAuthorizationIntent implements IntentsProvider {
#Override
public List<?> getIntents() {
HttpConduitConfig conduitConfig = new HttpConduitConfig();
conduitConfig.setAuthorizationPolicy(basicAuthorization());
HttpConduitFeature conduitFeature = new HttpConduitFeature();
conduitFeature.setConduitConfig(conduitConfig);
return Arrays.asList((Object) conduitFeature);
}
private AuthorizationPolicy basicAuthorization() {
AuthorizationPolicy authorizationPolicy = new AuthorizationPolicy();
authorizationPolicy.setUserName("dosgi");
authorizationPolicy.setPassword("dosgi");
authorizationPolicy.setAuthorizationType("Basic");
return authorizationPolicy;
}
}
Related
I'm currently working with AWS Kinesis using the KCL Library. I can consume the records and print them with println. But when I try to call a repository class, it returns null (I'm autowiring it).
RecordProcessor
public class ScoreRecordProcessor implements ShardRecordProcessor {
private String shardId;
#Autowired
private ConstatacoesRepository repo;
#Override
public void initialize(InitializationInput initializationInput) {
shardId = initializationInput.shardId();
System.out.println(String.format("Inicializando leitura na shard %s # sequence: %s", shardId,
initializationInput.extendedSequenceNumber().toString()));
}
#Override
public void processRecords(ProcessRecordsInput processRecordsInput) {
ObjectMapper mapper = new ObjectMapper();
for (KinesisClientRecord record : processRecordsInput.records()) {
byte[] byteArr = new byte[record.data().remaining()];
record.data().get(byteArr);
System.out.println("Constatacao recebida -> " + new String(byteArr));
try {
ResponseScoreDTO score = mapper.readValue(new String(byteArr), ResponseScoreDTO.class);
for(Constatacao constatacao : score.getConstatacao()) {
Constatacoes entidadeBanco = new Constatacoes();
entidadeBanco.setArea(constatacao.getArea());
entidadeBanco.setConstatacaoNotaFiscal(constatacao.getConstatacao());
entidadeBanco.setCriticidade(constatacao.getCriticidade());
entidadeBanco.setEfetivaEscrituracao(constatacao.getEfetivaEscReg());
entidadeBanco.setEscopo(constatacao.getEscopo());
entidadeBanco.setIdSolicitacaoNotaFiscal(BigInteger.valueOf(Long.valueOf(score.getIdTransacao())));
entidadeBanco.setTxtConstatacao(null);
repo.save(entidadeBanco);
System.out.println("Entidade salva com sucesso.");
}
} catch (JsonProcessingException e) {
e.printStackTrace();
}
}
}
#Override
public void leaseLost(LeaseLostInput leaseLostInput) {
}
#Override
public void shardEnded(ShardEndedInput shardEndedInput) {
System.out.println(String.format("Shard %s chegou ao fim.", shardId));
}
#Override
public void shutdownRequested(ShutdownRequestedInput shutdownRequestedInput) {
}
}
RecordProcessorFactory
public class ScoreRecordProcessorFactory implements ShardRecordProcessorFactory {
#Override
public ShardRecordProcessor shardRecordProcessor() {
return new ScoreRecordProcessor();
}
}
Repository
#Repository
public interface ConstatacoesRepository extends JpaRepository<Constatacoes,BigInteger>{
}
Print of the console
I have a spring boot application where i have instrumented my code using automatic instrumentation.
Now in my application i am trying to attach a baggage in the traces or some specific span.
I know it uses contextPropagation. but i am not able to implement how contextPropagator, baggage and span work together.
Here is my relevant code implementation:
#WithSpan
private void doSomeWorkNewSpan() {
logger.info("Doing some work In New span");
Span span = Span.current();
ContextPropagators contextPropagators = new ContextPropagators() {
#Override
public TextMapPropagator getTextMapPropagator() {
return null;
}
};
Context context = new Context() {
#Override
public <V> V get(ContextKey<V> contextKey) {
return null;
}
#Override
public <V> Context with(ContextKey<V> contextKey, V v) {
return null;
}
};
Baggage baggage = new Baggage() {
#Override
public int size() {
return 0;
}
#Override
public void forEach(BiConsumer<? super String, ? super BaggageEntry> biConsumer) {
}
#Override
public Map<String, BaggageEntry> asMap() {
return null;
}
#Override
public String getEntryValue(String s) {
return null;
}
#Override
public BaggageBuilder toBuilder() {
return null;
}
};
baggage.storeInContext(context);
// span.storeInContext();
span.setAttribute("crun","yes");
span.addEvent("app.processing2.start", atttributes("321"));
span.addEvent("app.processing2.end", atttributes("321"));
}
private Attributes atttributes(String id) {
return Attributes.of(AttributeKey.stringKey("app.id"), id);
}
I'm a beginner with Simple Injector and have a scenario where I need help to implement. I will try to simplify what I need to do.
I have a WebAPI where I need to authenticate users and based on the type of user choose an implementation.
Consider this structure
public interface ICarRepository {
void SaveCar(Car car);
}
//Some implementation for ICarRepository
public interface ICarLogic {
void CreateCar(Car car);
}
public class CarLogicStandard: ICarLogic {
private ICarRepository _carRepository;
public CarLogicStandard(ICarRepository carRepository) {
_carRepository = carRepository;
}
public void CreateCar(Car car) {
car.Color = "Blue";
_carRepository.SaveCar();
//Other stuff...
}
}
public class CarLogicPremium: ICarLogic {
private ICarRepository _carRepository;
public CarLogicPremium(ICarRepository carRepository) {
_carRepository = carRepository;
}
public void CreateCar(Car car) {
car.Color = "Red";
_carRepository.SaveCar();
//Other stuff 2...
}
}
And now I have a controller
public class CarController: ApiController {
private ICarLogic _carLogic;
public CarController(ICarLogic carLogic) {
_carLogic = carLogic;
}
public void Post(somePostData) {
//Identify the user based on post data
//....
Car car = somePostData.SomeCar();
_carLogic.CreateCar(car);
}
}
The code above will not work because in my request I need to identify the user. If it is a premium user the controller should use the CarLogicPremium and if it is a standard user the controller should use the CarLogicStandard.
I can configure the repository and others interfaces that don't need this logic on Global.asax however, since this case I need the request to decide which implementation should be used, I supose that I need to solve this in some other way.
There is a "Simple Injector" way to handle this? Or should I try another approach?
The simplest solution would be to configure the decision in the composition root, along with the rest of the container's configuration:
protected void Application_Start()
{
GlobalConfiguration.Configure(WebApiConfig.Register);
var container = new Container();
container.Register<CarLogicStandard>();
container.Register<CarLogicPremium>();
container.RegisterPerWebRequest<ICarRepository, CarRepository>();
container.Register<ICarLogic>(
() =>
HttpContext.Current != null &&
HttpContext.Current.User != null &&
HttpContext.Current.User.IsInRole("Premium")
? (ICarLogic)container.GetInstance<CarLogicPremium>()
: (ICarLogic)container.GetInstance<CarLogicStandard>()
);
// This is an extension method from the integration package.
container.RegisterWebApiControllers(GlobalConfiguration.Configuration);
container.Verify();
GlobalConfiguration.Configuration.DependencyResolver =
new SimpleInjectorWebApiDependencyResolver(container);
}
You could also create an abstraction over the current user and decorate standard features with premium features
public class CarLogicPremium : ICarLogic
{
private readonly ICarLogic decorated;
private readonly ICurrentUser currentUser;
private readonly ICarRepository carRepository;
public CarLogicPremium(
ICarLogic decorated,
ICurrentUser currentUser,
ICarRepository carRepository)
{
this.decorated = decorated;
this.currentUser = currentUser;
this.carRepository = carRepository;
}
public void CreateCar(Car car)
{
if (currentUser.IsPremiumMember)
{
car.Color = "Red";
this.carRepository.SaveCar(car);
//Other stuff 2...
}
else
{
this.decorated.CreateCar(car);
}
}
}
which would be configured a bit like this
protected void Application_Start()
{
GlobalConfiguration.Configure(WebApiConfig.Register);
var container = new Container();
container.Register<ICurrentUser, HttpCurrentUserProxy>();
container.RegisterPerWebRequest<ICarRepository, CarRepository>();
container.Register<ICarLogic, CarLogicStandard>();
container.RegisterDecorator(typeof(ICarLogic), typeof(CarLogicPremium));
container.RegisterWebApiControllers(GlobalConfiguration.Configuration);
container.Verify();
GlobalConfiguration.Configuration.DependencyResolver =
new SimpleInjectorWebApiDependencyResolver(container);
}
But it really depends how many variations of services you will be creating over time. If you will be constantly adding new premium features you should look to implement a variation of the Try-X pattern. Let me know if one of the above works for you or if you need more info ...
I am using Umbraco 6.1 with an UmbracoApiController which has a IUnitOfWork injected into it's constructor. To inject the dependencies, I am using Unity, like I have in the past with standard Web API projects. Normally, I set unity up in the Global.asax.cs. As Umbraco does not have this I have created my own UmbracoEvents handler, which inherits from IApplicationEventHandler, and has the methods:
OnApplicationInitialized
OnApplicationStarting
OnApplicationStarted
ConfigureApi
In the OnApplicationStarted method I set up my EF database, db initializer etc and call ConfigureApi to set up Unity. My OnApplication Started and ConfigureApi methods looks like this:
public void OnApplicationStarted(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
{
_applicationContext = applicationContext;
_umbracoApplication = umbracoApplication;
_contentService = ApplicationContext.Current.Services.ContentService;
this.ConfigureApi(GlobalConfiguration.Configuration);
Database.SetInitializer(null);
PropertySearchContext db = new PropertySearchContext();
db.Database.Initialize(true);
}
private void ConfigureApi(HttpConfiguration config)
{
var unity = new UnityContainer();
unity.RegisterType<PropertiesApiController>();
unity.RegisterType<IUnitOfWork, UnitOfWork>(new HierarchicalLifetimeManager());
config.DependencyResolver = new IoCContainer(unity);
}
My Controller code:
public class PropertiesApiController : UmbracoApiController
{
private readonly IUnitOfWork _unitOfWork;
public PropertiesApiController(IUnitOfWork unitOfWork)
{
if(null == unitOfWork)
throw new ArgumentNullException();
_unitOfWork = unitOfWork;
}
public IEnumerable GetAllProperties()
{
return new[] {"Table", "Chair", "Desk", "Computer", "Beer fridge"};
}
}
My Scope Container/IoC Container code: (as per http://www.asp.net/web-api/overview/extensibility/using-the-web-api-dependency-resolver)
public class ScopeContainer : IDependencyScope
{
protected IUnityContainer container;
public ScopeContainer(IUnityContainer container)
{
if (container == null)
{
throw new ArgumentNullException("container");
}
this.container = container;
}
public object GetService(Type serviceType)
{
if (container.IsRegistered(serviceType))
{
return container.Resolve(serviceType);
}
else
{
return null;
}
}
public IEnumerable<object> GetServices(Type serviceType)
{
if (container.IsRegistered(serviceType))
{
return container.ResolveAll(serviceType);
}
else
{
return new List<object>();
}
}
public void Dispose()
{
container.Dispose();
}
}
public class IoCContainer : ScopeContainer, IDependencyResolver
{
public IoCContainer(IUnityContainer container)
: base(container)
{
}
public IDependencyScope BeginScope()
{
var child = this.container.CreateChildContainer();
return new ScopeContainer(child);
}
}
My IUnitOfWork code:
public interface IUnitOfWork : IDisposable
{
GenericRepository<Office> OfficeRepository { get; }
GenericRepository<Property> PropertyRepository { get; }
void Save();
void Dispose(bool disposing);
void Dispose();
}
My UnitOfWork implementation:
public class UnitOfWork : IUnitOfWork
{
private readonly PropertySearchContext _context = new PropertySearchContext();
private GenericRepository<Office> _officeRepository;
private GenericRepository<Property> _propertyRepository;
public GenericRepository<Office> OfficeRepository
{
get
{
if (this._officeRepository == null)
{
this._officeRepository = new GenericRepository<Office>(_context);
}
return _officeRepository;
}
}
public GenericRepository<Property> PropertyRepository
{
get
{
if (this._propertyRepository == null)
{
this._propertyRepository = new GenericRepository<Property>(_context);
}
return _propertyRepository;
}
}
public void Save()
{
_context.SaveChanges();
}
private bool disposed = false;
public virtual void Dispose(bool disposing)
{
if (!this.disposed)
{
if (disposing)
{
_context.Dispose();
}
}
this.disposed = true;
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
}
I have used unity/DI with MVC4/WebAPI controllers and this implementation of UnitOfWork many times before without issue, so I'm thinking it's Umbraco specific.
I have also debugged the application and made sure that it hits OnApplicationStarted and that its parameters are not null.
The GetAllProperties method in the controller is just a test method to make sure it is all working fine, however, when I try and access this action I get the error:
"The type IUnitOfWork does not have an accessible constructor"
Does anyone have experience with using Umbraco 6.1 and it's UmbracoApiController with dependency injection/Unity?
Also, on an unrelated note, is there a way to return JSON instead of XML in the action? In Web API you would just define the formatter in the WebApi.config but there is none in Umbraco.
Thanks,
Justin
In case you haven't found a solution to your problem? Download this nuget package and right after building your unity container:
GlobalConfiguration.Configuration.DependencyResolver =
new Unity.WebApi.UnityDependencyResolver(Bootstrapper.Container);
Notice the namespace which is different than Unity.Mvc4.UnityDependencyResolver.
I have a springframework application in which I would like to add a transaction listener to a transaction which is currently in progress. The motivation is to trigger a post commit action which notifies downstream systems. I am using #Transactional to wrap a transaction around some service method -- which is where I want to create/register the post transaction listener. I want to do something "like" the following.
public class MyService {
#Transaction
public void doIt() {
modifyObjects();
// something like this
getTransactionManager().registerPostCommitAction(new
TransactionSynchronizationAdapter() {
public void afterCommit() {
notifyDownstream();
}
});
}
}
Spring has a TransactionSynchronization interface and adapter class which seems exactly what I want; however it is not immediately clear how to register one dynamically with either the current transaction, or the transaction manager. I would rather not subclass JtaTransactionManager if I can avoid it.
Q: Has anyone done this before.
Q: what is the simplest way to register my adapter?
Actually it was not as hard as I thought; spring has a static helper class that puts the 'right' stuff into the thread context.
TransactionSynchronizationManager.registerSynchronization(
new TransactionSynchronizationAdapter() {
#Override
public void afterCommit() {
s_logger.info("TRANSACTION COMPLETE!!!");
}
}
);
you could use an aspect to match transactional methods aspect in your service to accomplish this:
#Aspect
public class AfterReturningExample {
#AfterReturning("execution(* com.mypackage.MyService.*(..))")
public void afterReturning() {
// ...
}
}
Here is a more complete solution I did for a similar problem that with wanting my messages sent after transactions are committed (I could have used RabbitMQ TX but they are rather slow).
public class MessageBusUtils {
public static Optional<MessageBusResourceHolder> getTransactionalResourceHolder(TxMessageBus messageBus) {
if ( ! TransactionSynchronizationManager.isActualTransactionActive()) {
return Optional.absent();
}
MessageBusResourceHolder o = (MessageBusResourceHolder) TransactionSynchronizationManager.getResource(messageBus);
if (o != null) return Optional.of(o);
o = new MessageBusResourceHolder();
TransactionSynchronizationManager.bindResource(messageBus, o);
o.setSynchronizedWithTransaction(true);
if (TransactionSynchronizationManager.isSynchronizationActive()) {
TransactionSynchronizationManager.registerSynchronization(new MessageBusResourceSynchronization(o, messageBus));
}
return Optional.of(o);
}
private static class MessageBusResourceSynchronization extends ResourceHolderSynchronization<MessageBusResourceHolder, TxMessageBus> {
private final TxMessageBus messageBus;
private final MessageBusResourceHolder holder;
public MessageBusResourceSynchronization(MessageBusResourceHolder resourceHolder, TxMessageBus resourceKey) {
super(resourceHolder, resourceKey);
this.messageBus = resourceKey;
this.holder = resourceHolder;
}
#Override
protected void cleanupResource(MessageBusResourceHolder resourceHolder, TxMessageBus resourceKey,
boolean committed) {
resourceHolder.getPendingMessages().clear();
}
#Override
public void afterCompletion(int status) {
if (status == TransactionSynchronization.STATUS_COMMITTED) {
for (Object o : holder.getPendingMessages()) {
messageBus.post(o, false);
}
}
else {
holder.getPendingMessages().clear();
}
super.afterCompletion(status);
}
}
}
public class MessageBusResourceHolder extends ResourceHolderSupport {
private List<Object> pendingMessages = Lists.newArrayList();
public void addMessage(Object message) {
pendingMessages.add(message);
}
protected List<Object> getPendingMessages() {
return pendingMessages;
}
}
Now in your class where you actually send the message you will do
#Override
public void postAfterCommit(Object o) {
Optional<MessageBusResourceHolder> holder = MessageBusTxUtils.getTransactionalResourceHolder(this);
if (holder.isPresent()) {
holder.get().addMessage(o);
}
else {
post(o, false);
}
}
Sorry for the long winded coding samples but hopefully that will show someone how to do something after a commit.
Does it make sense to override the transaction manager on the commit and rollback methods, calling super.commit() right at the beginning.