Package org.jboss.errai.ioc.rebind.ioc.injector.api

Examples of org.jboss.errai.ioc.rebind.ioc.injector.api.InjectionContext

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    super(decoratesWith);
  }

  @Override
  public List<? extends Statement> generateDecorator(final InjectableInstance<Service> injectableInstance) {
    final InjectionContext ctx = injectableInstance.getInjectionContext();

    /**
     * Ensure the the container generates a stub to internally expose the field if it's private.
     */
    injectableInstance.ensureMemberExposed();
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  public ProducerInjector(final MetaClass injectedType,
                          final MetaClassMember producerMember,
                          final InjectableInstance producerInjectableInstance) {

    final InjectionContext injectionContext = producerInjectableInstance.getInjectionContext();

    switch (producerInjectableInstance.getTaskType()) {
      case PrivateField:
      case PrivateMethod:
        producerInjectableInstance.ensureMemberExposed(PrivateAccessType.Read);
    }

    super.qualifyingMetadata = producerInjectableInstance.getQualifyingMetadata();
    this.provider = true;
    this.injectedType = injectedType;
    this.enclosingType = producerMember.getDeclaringClass();
    this.producerMember = producerMember;
    this.producerInjectableInstance = producerInjectableInstance;

    this.singleton = injectionContext.isElementType(WiringElementType.SingletonBean, getProducerMember());

    this.disposerMethod = findDisposerMethod(injectionContext.getProcessingContext());

    this.creationalCallbackVarName = InjectUtil.getNewInjectorName().concat("_")
        .concat(injectedType.getName().concat("_creational"));

    final Set<Annotation> qualifiers = new HashSet<Annotation>();
    qualifiers.addAll(InjectUtil.getQualifiersFromAnnotations(producerMember.getAnnotations()));

    if (qualifiers.isEmpty()) {
      qualifiers.add(BuiltInQualifiers.DEFAULT_INSTANCE);
    }

    qualifiers.add(BuiltInQualifiers.ANY_INSTANCE);

    qualifyingMetadata = injectionContext.getProcessingContext().getQualifyingMetadataFactory()
        .createFrom(qualifiers.toArray(new Annotation[qualifiers.size()]));

    if (producerMember.isAnnotationPresent(Specializes.class)) {
      makeSpecialized(injectionContext);
    }

    if (producerMember.isAnnotationPresent(Named.class)) {
      final Named namedAnnotation = producerMember.getAnnotation(Named.class);

      this.beanName = namedAnnotation.value().equals("")
          ? ReflectionUtil.getPropertyFromAccessor(producerMember.getName()) : namedAnnotation.value();
    }

    injectionContext.addInjectorRegistrationListener(producerMember.getDeclaringClass(),
        new InjectorRegistrationListener() {
          @Override
          public void onRegister(final MetaClass type, final Injector injector) {
            injector.addDisablingHook(new Runnable() {
              @Override
              public void run() {
                setEnabled(false);
              }
            });
          }
        });

    injectionContext.addInjectorRegistrationListener(injectedType,
        new InjectorRegistrationListener() {
          @Override
          public void onRegister(final MetaClass type, Injector injector) {
            while (injector instanceof QualifiedTypeInjectorDelegate) {
              injector = ((QualifiedTypeInjectorDelegate) injector).getDelegate();
            }

            if (!(injector instanceof ProducerInjector)) {
              injector.setEnabled(false);
            }
          }
        });

    if (producerMember instanceof MetaMethod && injectionContext.isOverridden((MetaMethod) producerMember)) {
      setEnabled(false);
    }

    if (injectionContext.isInjectorRegistered(enclosingType, qualifyingMetadata)) {
      setRendered(true);
    }
    else {
      injectionContext.getProcessingContext().registerTypeDiscoveryListener(new TypeDiscoveryListener() {
        @Override
        public void onDiscovery(final IOCProcessingContext context,
                                final InjectionPoint injectionPoint,
                                final MetaClass injectedType) {
          if (injectionPoint.getEnclosingType().equals(enclosingType)) {
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    renderGlobalProvider(injectableInstance);
  }

  @Override
  public Statement getBeanInstance(final InjectableInstance injectableInstance) {
    final InjectionContext injectionContext = injectableInstance.getInjectionContext();

    if (isDependent()) {
      renderGlobalProvider(injectableInstance);
      return registerDestructorCallback(injectionContext, injectionContext.getProcessingContext().getBlockBuilder(),
          producerInjectableInstance.getValueStatement(), disposerMethod);
    }

    final BlockBuilder callbackBuilder = injectionContext.getProcessingContext().getBlockBuilder();

    final MetaClass creationCallbackRef = parameterizedAs(BeanProvider.class,
        typeParametersOf(injectedType));

    final String var = InjectUtil.getUniqueVarName();
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    return Refs.get(varName);
  }

  private void renderGlobalProvider(final InjectableInstance injectableInstance) {
    final InjectionContext injectionContext = injectableInstance.getInjectionContext();
    if (!injectionContext.isTypeInjectable(producerMember.getDeclaringClass())) {
      injectionContext.getInjector(producerMember.getDeclaringClass()).addRenderingHook(
          new RenderingHook() {
            @Override
            public void onRender(final InjectableInstance instance) {
              renderGlobalProvider(injectableInstance);
            }
          }
      );
      return;
    }

    if (creationalCallbackRendered) {
      return;
    }

    creationalCallbackRendered = true;

    final MetaClass creationCallbackRef = parameterizedAs(BeanProvider.class,
        typeParametersOf(injectedType));

    final String var = InjectUtil.getUniqueVarName();

    final BlockBuilder<AnonymousClassStructureBuilder> statements = ObjectBuilder.newInstanceOf(creationCallbackRef)
        .extend()
        .publicOverridesMethod("getInstance", Parameter.of(CreationalContext.class, "pContext"));

    injectionContext.getProcessingContext().pushBlockBuilder(statements);

    final Statement producerCreationalCallback = statements
        ._(Stmt.declareVariable(injectedType)
            .named(var).initializeWith(getValueStatement(injectionContext,
                injectionContext.getInjector(producerMember.getDeclaringClass()).getBeanInstance(injectableInstance))))
        ._(loadVariable("context").invoke("addBean",
            loadVariable("context").invoke("getBeanReference",
                Stmt.load(injectedType),
                Stmt.load(qualifyingMetadata.getQualifiers())), Refs.get(var)))
        ._(Stmt.loadVariable(var).returnValue())
        .finish().finish();

    injectionContext.getProcessingContext().getBootstrapBuilder()
        .privateField(creationalCallbackVarName, creationCallbackRef).modifiers(Modifier.Final)
        .initializesWith(producerCreationalCallback).finish();

    registerWithBeanManager(injectionContext, null);

    injectionContext.getProcessingContext().popBlockBuilder();
  }
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    final IOCProcessingContext procContext = iocProcContextBuilder.build();

    injectionContextBuilder.processingContext(procContext);
    injectionContextBuilder.reachableTypes(allDeps);
    final InjectionContext injectionContext = injectionContextBuilder.build();

    defaultConfigureProcessor(injectionContext);

    // generator constructor source code
    final IOCProcessorFactory procFactory = new IOCProcessorFactory(injectionContext);
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  public AsyncProducerInjector(final MetaClass injectedType,
                               final MetaClassMember producerMember,
                               final InjectableInstance producerInjectableInstance) {

    final InjectionContext injectionContext = producerInjectableInstance.getInjectionContext();

    switch (producerInjectableInstance.getTaskType()) {
      case PrivateField:
      case PrivateMethod:
        producerInjectableInstance.ensureMemberExposed(PrivateAccessType.Read);
    }

    super.qualifyingMetadata = producerInjectableInstance.getQualifyingMetadata();
    this.provider = true;
    this.injectedType = injectedType;
    this.enclosingType = producerMember.getDeclaringClass();
    this.producerMember = producerMember;
    this.producerInjectableInstance = producerInjectableInstance;

    this.singleton = injectionContext.isElementType(WiringElementType.SingletonBean, getProducerMember());

    this.disposerMethod = findDisposerMethod(injectionContext.getProcessingContext());

    this.creationalCallbackVarName = InjectUtil.getNewInjectorName().concat("_")
        .concat(injectedType.getName().concat("_creational"));

    final Set<Annotation> qualifiers = new HashSet<Annotation>();
    qualifiers.addAll(InjectUtil.getQualifiersFromAnnotations(producerMember.getAnnotations()));

    if (qualifiers.isEmpty()) {
      qualifiers.add(BuiltInQualifiers.DEFAULT_INSTANCE);
    }

    qualifiers.add(BuiltInQualifiers.ANY_INSTANCE);

    qualifyingMetadata = injectionContext.getProcessingContext().getQualifyingMetadataFactory()
        .createFrom(qualifiers.toArray(new Annotation[qualifiers.size()]));

    if (producerMember.isAnnotationPresent(Specializes.class)) {
      makeSpecialized(injectionContext);
    }

    if (producerMember.isAnnotationPresent(Named.class)) {
      final Named namedAnnotation = producerMember.getAnnotation(Named.class);

      this.beanName = namedAnnotation.value().equals("")
          ? ReflectionUtil.getPropertyFromAccessor(producerMember.getName()) : namedAnnotation.value();
    }

    injectionContext.addInjectorRegistrationListener(producerMember.getDeclaringClass(),
        new InjectorRegistrationListener() {
          @Override
          public void onRegister(final MetaClass type, final Injector injector) {
            injector.addDisablingHook(new Runnable() {
              @Override
              public void run() {
                setEnabled(false);
              }
            });
          }
        });

    if (producerMember instanceof MetaMethod && injectionContext.isOverridden((MetaMethod) producerMember)) {
      setEnabled(false);
    }

    if (injectionContext.isInjectorRegistered(enclosingType, qualifyingMetadata)) {
      setRendered(true);
    }
    else {
      injectionContext.getProcessingContext().registerTypeDiscoveryListener(new TypeDiscoveryListener() {
        @Override
        public void onDiscovery(final IOCProcessingContext context,
                                final InjectionPoint injectionPoint,
                                final MetaClass injectedType) {
          if (injectionPoint.getEnclosingType().equals(enclosingType)) {
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    }
  }

  @Override
  public void renderProvider(final InjectableInstance injectableInstance) {
    final InjectionContext injectionContext = injectableInstance.getInjectionContext();
    if (!injectionContext.isTypeInjectable(producerMember.getDeclaringClass())) {
      injectionContext.getInjector(producerMember.getDeclaringClass()).addRenderingHook(
          new RenderingHook() {
            @Override
            public void onRender(final InjectableInstance instance) {
              renderProvider(injectableInstance);
            }
          }
      );
      return;
    }

    if (creationalCallbackRendered) {
      return;
    }

    creationalCallbackRendered = true;

    final MetaClass beanProviderMC = parameterizedAs(AsyncBeanProvider.class,
        typeParametersOf(injectedType));
    final MetaClass creationCallbackMC = parameterizedAs(CreationalCallback.class,
        typeParametersOf(injectedType));

    final BlockBuilder<AnonymousClassStructureBuilder> statements = ObjectBuilder.newInstanceOf(beanProviderMC)
        .extend()
        .publicOverridesMethod("getInstance",
            Parameter.finalOf(creationCallbackMC, "callback"),
            Parameter.finalOf(AsyncCreationalContext.class, "pContext")
        );

    injectionContext.getProcessingContext().pushBlockBuilder(statements);

    statements
        ._(Stmt.declareFinalVariable("async", AsyncBeanContext.class, Stmt.newObject(AsyncBeanContext.class)));

    if (producerMember instanceof MetaMethod) {
      final MetaMethod producerMethod = (MetaMethod) producerMember;
      for (final MetaParameter metaParameter : producerMethod.getParameters()) {
        final Injector inj = injectionContext.getQualifiedInjector(metaParameter.getType(), metaParameter.getAnnotations());

        final MetaClass concreteInjectedType = inj.getConcreteInjectedType();
        final String varName = InjectUtil.getVarNameFromType(concreteInjectedType, metaParameter);

        final MetaClass depCreationCallbackMC = parameterizedAs(CreationalCallback.class,
            typeParametersOf(concreteInjectedType));

        final ObjectBuilder callback = Stmt.newObject(depCreationCallbackMC)
            .extend().publicOverridesMethod("callback", Parameter.finalOf(concreteInjectedType, "beanValue"))
            .append(Stmt.loadVariable("async").invoke("finish", Refs.get("this"), Refs.get("beanValue")))
            .finish().finish();

        statements.append(Stmt.declareFinalVariable(varName, depCreationCallbackMC, callback));
        statements.append(Stmt.loadVariable("async").invoke("wait", Refs.get(varName)));
      }
    }

    final String producerBeanCBVar = InjectUtil.getVarNameFromType(producerMember.getDeclaringClass(), injectableInstance);
    final MetaClass callbackMC = parameterizedAs(CreationalCallback.class, typeParametersOf(producerMember.getDeclaringClass()));

    final BlockBuilder<AnonymousClassStructureBuilder> blockBuilder = Stmt.create().newObject(callbackMC)
        .extend()
        .publicOverridesMethod("callback", Parameter.finalOf(producerMember.getDeclaringClass(), "bean"));

    doBindings(blockBuilder, injectionContext, Refs.get("bean"));

    final Statement producerCreationalCallback = blockBuilder.finish().finish();

    statements.append(Stmt.loadVariable("async").invoke("runOnFinish", Stmt.newObject(Runnable.class)
        .extend().publicOverridesMethod("run")
        .append(Stmt.declareFinalVariable(producerBeanCBVar, callbackMC, producerCreationalCallback))
        .append(AsyncInjectUtil.getInjectorOrProxy(injectionContext, injectableInstance,
            producerMember.getDeclaringClass(), producerInjectableInstance.getQualifyingMetadata())
        ).finish().finish()
    ));

    statements.append(Stmt.loadVariable("async").invoke("finish"));

    final Statement producerBeanProvider = statements.finish().finish();

    injectionContext.getProcessingContext().getBootstrapBuilder()
        .privateField(creationalCallbackVarName, beanProviderMC).modifiers(Modifier.Final)
        .initializesWith(producerBeanProvider).finish();

    registerWithBeanManager(injectionContext, null);

    injectionContext.getProcessingContext().popBlockBuilder();
  }
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    injectionContext.getProcessingContext().popBlockBuilder();
  }

  @Override
  public Statement getBeanInstance(final InjectableInstance injectableInstance) {
    final InjectionContext injectionContext = injectableInstance.getInjectionContext();

    final BlockBuilder callbackBuilder = injectionContext.getProcessingContext().getBlockBuilder();

    if (isDependent()) {
      callbackBuilder.append(
          Stmt.loadVariable(creationalCallbackVarName)
              .invoke("getInstance", Refs.get(InjectUtil.getVarNameFromType(injectedType, injectableInstance)), Refs.get("context"))
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//  }

  private void registerDestructorCallback(final InjectableInstance injectableInstance,
                                          final MetaMethod disposerMethod) {

    final InjectionContext injectionContext = injectableInstance.getInjectionContext();


    if (disposerMethod == null) {
      return;
    }

    final BlockBuilder<?> bb
        = (BlockBuilder<?>) injectionContext.getAttribute(AsyncInjectionTask.RECEIVING_CALLBACK_ATTRIB);

    final String varName = InjectUtil.getUniqueVarName() + "_XXX";

    final MetaClass destructionCallbackType =
        parameterizedAs(DestructionCallback.class, typeParametersOf(injectedType));

    final BlockBuilder<AnonymousClassStructureBuilder> initMeth
        = ObjectBuilder.newInstanceOf(destructionCallbackType).extend()
        .publicOverridesMethod("destroy", Parameter.of(injectedType, "obj", true));

    final String destroyVarName = "destroy_" + varName;

    if (!disposerMethod.isPublic()) {
      injectionContext.addExposedMethod(disposerMethod);
    }

  //  ensureTargetInjectorAvailable(injectableInstance);

    final String producerClassCallbackVar = InjectUtil.getUniqueVarName();
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  public void renderProvider(final InjectableInstance injectableInstance) {
    if (isRendered() && isEnabled()) {
      return;
    }

    final InjectionContext injectContext = injectableInstance.getInjectionContext();
    final IOCProcessingContext ctx = injectContext.getProcessingContext();

     /*
     get a parameterized version of the BeanProvider class, parameterized with the type of
     bean it produces.
     */
    final MetaClass creationCallbackRef = parameterizedAs(BeanProvider.class, typeParametersOf(type));

     /*
     begin building the creational callback, implement the "getInstance" method from the interface
     and assign its BlockBuilder to a callbackBuilder so we can work with it.
     */
    final BlockBuilder<AnonymousClassStructureBuilder> callbackBuilder
        = newInstanceOf(creationCallbackRef).extend()
        .publicOverridesMethod("getInstance", Parameter.of(CreationalContext.class, "context", true));

     /* push the method block builder onto the stack, so injection tasks are rendered appropriately. */
    ctx.pushBlockBuilder(callbackBuilder);

     /* get a new unique variable for the creational callback */
    creationalCallbackVarName = InjectUtil.getNewInjectorName().concat("_")
        .concat(type.getName()).concat("_creational");

     /* get the construction strategy and execute it to wire the bean */
    getConstructionStrategy(this, injectContext).generateConstructor(new ConstructionStatusCallback() {
      @Override
      public void beanConstructed(final ConstructionType constructionType) {
        final Statement beanRef = Refs.get(instanceVarName);

        callbackBuilder.append(
            loadVariable("context").invoke("addBean", loadVariable("context").invoke("getBeanReference", load(type),
                load(qualifyingMetadata.getQualifiers())), beanRef)
        );

         /* mark this injector as injected so we don't go into a loop if there is a cycle. */
        setCreated(true);
      }
    });


    callbackBuilder.appendAll(getAddToEndStatements());

     /*
     return the instance of the bean from the creational callback.
     */
    if (isProxied()) {
      callbackBuilder.appendAll(createProxyDeclaration(injectContext));
      callbackBuilder.append(loadVariable(getProxyInstanceVarName()).returnValue());
    }
    else {
      callbackBuilder.append(loadVariable(instanceVarName).returnValue());
    }
     /* pop the block builder of the stack now that we're done wiring. */
    ctx.popBlockBuilder();

     /*
     declare a final variable for the BeanProvider and initialize it with the anonymous class we just
     built.
     */
    ctx.getBootstrapBuilder().privateField(creationalCallbackVarName, creationCallbackRef).modifiers(Modifier.Final)
        .initializesWith(callbackBuilder.finish().finish()).finish();

    if (isSingleton()) {
       /*
        if the injector is for a singleton, we create a variable to hold the singleton reference in the bootstrapper
        method and assign it with SimpleCreationalContext.getInstance().
        */
      ctx.getBootstrapBuilder().privateField(instanceVarName, type).modifiers(Modifier.Final)
          .initializesWith(loadVariable(creationalCallbackVarName).invoke("getInstance", Refs.get("context"))).finish();

      registerWithBeanManager(injectContext, Refs.get(instanceVarName));
    }
    else {
      registerWithBeanManager(injectContext, null);
    }

    setRendered(true);
    markRendered(injectableInstance);

     /*
       notify any component waiting for this type that is is ready now.
      */
    injectableInstance.getInjectionContext().getProcessingContext()
        .handleDiscoveryOfType(injectableInstance, getInjectedType());

    injectContext.markProxyClosedIfNeeded(getInjectedType(), getQualifyingMetadata());
  }
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Related Classes of org.jboss.errai.ioc.rebind.ioc.injector.api.InjectionContext

  • org.jboss.errai.codegen.meta.MetaClass
  • org.jboss.errai.ioc.rebind.ioc.bootstrapper.IOCBootstrapGenerator
  • org.jboss.errai.ioc.rebind.ioc.builtin.ServiceIOCExtension
  • org.jboss.errai.ioc.rebind.ioc.exception.InjectionFailure
  • org.jboss.errai.ioc.rebind.ioc.injector.AbstractInjector
  • org.jboss.errai.ioc.rebind.ioc.injector.async.AsyncProducerInjector
  • org.jboss.errai.ioc.rebind.ioc.injector.async.AsyncTypeInjector
  • org.jboss.errai.ioc.rebind.ioc.injector.basic.ProducerInjector
  • org.jboss.errai.ioc.rebind.ioc.injector.basic.TypeInjector
  • org.jboss.errai.ioc.rebind.ioc.injector.Injector
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