Wykryto awarię HK2 w kodzie, który nie działa w aktywnym zakresie błędu Jersey.

Question

Obecnie pracuję nad aplikacją RESTful opartą na koszulce i chcę korzystać z DPI w moich zasobach. (Uwaga: Wersja koszulki to 2.23.1, a kontener serwletu to tomcat 8.5.3.)

Dlatego też postępowałem zgodnie z tutorialem Chapter 23. Custom Injection and Lifecycle Management w dokumentacji jersey i utworzyłem zasób, fabrykę i związałem fabrykę z klasą tak:

zasobów:

@Path("/{project}/catalogs") 
public class ProjectsResource { 

    @Inject 
    Project project; 

    ... 
} 

fabryczne

public class ProjectFactory extends Factory<Project> { 

    private final Cache cache = cache.getInstance(); 

    @PathParam("project") 
    private String project; 

    private HttpServletRequest request; 

    @Inject 
    public ProjectFactory(HttpServletRequest request) { 
    this.request = request; 
    } 

    @Override 
    public Project provide() { 
    return cache.get(project, Project.class); 
    } 

    @Override 
    public void dispose(Project instance) {} 

} 

również posiada funkcję, która rejestruje AbstractBinder, który wiąże mój ProjectFactory z moją klasą Project.

@Provider 
public class ProjectFeature implements Feature { 

    @Override 
    public boolean configure(FeatureContext context) { 

    context.register(new AbstractBinder() { 
     @Override 
     protected void configure() { 
     bindFactory(ProjectFactory.class) 
      .to(Project.class) 
      .proxy(false) 
      .proxyForSameScope(true) 
      .in(RequestScoped.class); 
    }); 

    return true; 
    } 

} 

Faktycznie jest problem, gdy zgłoszę mój zasób wszystko jest w porządku i nie mogę uzyskać dostępu do instancji projektu, ale w moich tomcat Catalina dzienników otrzymuję następujący ułożonych Ślad:

 
22-Jul-2016 16:29:46.510 WARNING [pool-24-thread-1] org.glassfish.jersey.internal.Errors.logErrors The following warnings have been detected: WARNING: HK2 failure has been detected in a code that does not run in an active Jersey Error scope. 
WARNING: Unknown HK2 failure detected: 
MultiException stack 1 of 3 
java.lang.IllegalStateException: Not inside a request scope. 
    at jersey.repackaged.com.google.common.base.Preconditions.checkState(Preconditions.java:173) 
    at org.glassfish.jersey.process.internal.RequestScope.current(RequestScope.java:233) 
    at org.glassfish.jersey.process.internal.RequestScope.findOrCreate(RequestScope.java:158) 
    at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2022) 
    at org.jvnet.hk2.internal.ServiceLocatorImpl.internalGetService(ServiceLocatorImpl.java:765) 
    at org.jvnet.hk2.internal.ServiceLocatorImpl.getUnqualifiedService(ServiceLocatorImpl.java:772) 
    at org.jvnet.hk2.internal.IterableProviderImpl.get(IterableProviderImpl.java:111) 
    at org.glassfish.jersey.server.internal.inject.AbstractContainerRequestValueFactory.getContainerRequest(AbstractContainerRequestValueFactory.java:71) 
    at org.glassfish.jersey.server.internal.inject.PathParamValueFactoryProvider$PathParamValueFactory.provide(PathParamValueFactoryProvider.java:93) 
    at org.glassfish.jersey.server.internal.inject.ParamInjectionResolver.resolve(ParamInjectionResolver.java:134) 
    at org.jvnet.hk2.internal.ClazzCreator.resolve(ClazzCreator.java:211) 
    at org.jvnet.hk2.internal.ClazzCreator.resolveAllDependencies(ClazzCreator.java:234) 
    at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:357) 
    at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:471) 
    at org.jvnet.hk2.internal.PerLookupContext.findOrCreate(PerLookupContext.java:70) 
    at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2022) 
    at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:114) 
    at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:88) 
    at org.jvnet.hk2.internal.FactoryCreator.dispose(FactoryCreator.java:175) 
    at org.jvnet.hk2.internal.SystemDescriptor.dispose(SystemDescriptor.java:526) 
    at org.glassfish.jersey.process.internal.RequestScope$Instance.remove(RequestScope.java:532) 
    at org.glassfish.jersey.process.internal.RequestScope$Instance.release(RequestScope.java:549) 
    at org.glassfish.jersey.server.ServerRuntime$AsyncResponder.resume(ServerRuntime.java:968) 
    at org.glassfish.jersey.server.ServerRuntime$AsyncResponder.resume(ServerRuntime.java:922) 
    at de.moss.ems.rest.resource.AbstractBaseResource.send(AbstractBaseResource.java:118) 
    at de.moss.ems.rest.resource.AbstractBaseResource.resume(AbstractBaseResource.java:165) 
    at de.moss.ems.rest.resource.catalog.CatalogsResource.handleGet(CatalogsResource.java:49) 
    at de.moss.ems.rest.resource.catalog.AbstractCatalogResource.lambda$asyncGetRequest$0(AbstractCatalogResource.java:44) 
    at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1626) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
    at java.lang.Thread.run(Thread.java:745) 
MultiException stack 2 of 3 
java.lang.IllegalArgumentException: While attempting to resolve the dependencies of de.moss.ems.rest.factory.ProjectFactory errors were found 
    at org.jvnet.hk2.internal.ClazzCreator.resolveAllDependencies(ClazzCreator.java:246) 
    at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:357) 
    at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:471) 
    at org.jvnet.hk2.internal.PerLookupContext.findOrCreate(PerLookupContext.java:70) 
    at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2022) 
    at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:114) 
    at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:88) 
    at org.jvnet.hk2.internal.FactoryCreator.dispose(FactoryCreator.java:175) 
    at org.jvnet.hk2.internal.SystemDescriptor.dispose(SystemDescriptor.java:526) 
    at org.glassfish.jersey.process.internal.RequestScope$Instance.remove(RequestScope.java:532) 
    at org.glassfish.jersey.process.internal.RequestScope$Instance.release(RequestScope.java:549) 
    at org.glassfish.jersey.server.ServerRuntime$AsyncResponder.resume(ServerRuntime.java:968) 
    at org.glassfish.jersey.server.ServerRuntime$AsyncResponder.resume(ServerRuntime.java:922) 
    at de.moss.ems.rest.resource.AbstractBaseResource.send(AbstractBaseResource.java:118) 
    at de.moss.ems.rest.resource.AbstractBaseResource.resume(AbstractBaseResource.java:165) 
    at de.moss.ems.rest.resource.catalog.CatalogsResource.handleGet(CatalogsResource.java:49) 
    at de.moss.ems.rest.resource.catalog.AbstractCatalogResource.lambda$asyncGetRequest$0(AbstractCatalogResource.java:44) 
    at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1626) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
    at java.lang.Thread.run(Thread.java:745) 
MultiException stack 3 of 3 
java.lang.IllegalStateException: Unable to perform operation: resolve on de.moss.ems.rest.factory.ProjectFactory 
    at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:386) 
    at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:471) 
    at org.jvnet.hk2.internal.PerLookupContext.findOrCreate(PerLookupContext.java:70) 
    at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2022) 
    at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:114) 
    at org.jvnet.hk2.internal.ServiceHandleImpl.getService(ServiceHandleImpl.java:88) 
    at org.jvnet.hk2.internal.FactoryCreator.dispose(FactoryCreator.java:175) 
    at org.jvnet.hk2.internal.SystemDescriptor.dispose(SystemDescriptor.java:526) 
    at org.glassfish.jersey.process.internal.RequestScope$Instance.remove(RequestScope.java:532) 
    at org.glassfish.jersey.process.internal.RequestScope$Instance.release(RequestScope.java:549) 
    at org.glassfish.jersey.server.ServerRuntime$AsyncResponder.resume(ServerRuntime.java:968) 
    at org.glassfish.jersey.server.ServerRuntime$AsyncResponder.resume(ServerRuntime.java:922) 
    at de.moss.ems.rest.resource.AbstractBaseResource.send(AbstractBaseResource.java:118) 
    at de.moss.ems.rest.resource.AbstractBaseResource.resume(AbstractBaseResource.java:165) 
    at de.moss.ems.rest.resource.catalog.CatalogsResource.handleGet(CatalogsResource.java:49) 
    at de.moss.ems.rest.resource.catalog.AbstractCatalogResource.lambda$asyncGetRequest$0(AbstractCatalogResource.java:44) 
    at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1626) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
    at java.lang.Thread.run(Thread.java:745) 

Any pomysły, w jaki sposób mogę rozwiązać te ostrzeżenia?

Answer 1

udało mi się rozwiązać ten problem za pomocą HK2 za org.glassfish.hk2.api.PerLookup adnotacji zamiast Bluzy org.glassfish.jersey.process.internal.RequestScoped adnotacji w mojej klasie AbstractBinder kiedy wiążę moja fabryka do mojego interfejsu.

import org.glassfish.hk2.api.PerLookup; 

@Provider 
public class ProjectFeature implements Feature { 

    @Override 
    public boolean configure(FeatureContext context) { 

    context.register(new AbstractBinder() { 
     @Override 
     protected void configure() { 
     bindFactory(ProjectFactory.class) 
      .to(Project.class) 
      .proxy(false) 
      .proxyForSameScope(true) 
      .in(PerLookup.class); 
    }); 

    return true; 
    } 

} 

Answer 2

Udało mi się obejść ten błąd przez wstrzyknięcie Factory zamiast bezpośredniej klasy. Testowałem również z wtryskiem HttpServletRequest i działa również. Jednak żadna inna inteligentna adnotacja nie zadziałała dla mnie, więc najprawdopodobniej będziesz musiał obejść ich użycie.

Mój stary kod:

@Inject 
public void setContext(ContainerRequestContext context) { 
    this.context = context; 
} 

@Override 
public SomeInfo provide() { 
    return (SomeInfo) context.getProperty(SOME_KEY); 
} 

Mój nowy kod:

@Inject 
public void setContext(Factory<ContainerRequestContext> contextFactory) { 
    this.contextFactory = contextFactory; 
} 

@Override 
public SomeInfo provide() { 
    ContainerRequestContext ctx = contextFactory.provide(); 
    try { 
     return (SomeInfo) ctx.getProperty(SOME_KEY); 
    } finally { 
     contextFactory.dispose(ctx); 
    } 
} 

Answer 3

Można sprawdzić, czy masz błąd składni w jednym ze swoich metod w klasie nie można „import” z Jersey, dla mnie to był przypadek. Miałem dwie niezamknięte plusy w sznurku.