Examples with AttachmentKey org.jboss.ejb.client.AttachmentKey used on opensource projects

Example 1 with AttachmentKey

use of org.jboss.ejb.client.AttachmentKey in project wildfly by wildfly.

the class LocalEjbReceiver method processInvocation.

@Override
protected void processInvocation(final EJBReceiverInvocationContext receiverContext) {
    final EJBClientInvocationContext invocation = receiverContext.getClientInvocationContext();
    final EJBLocator<?> locator = invocation.getLocator();
    final EjbDeploymentInformation ejb = findBean(locator);
    final EJBComponent ejbComponent = ejb.getEjbComponent();
    final Class<?> viewClass = invocation.getViewClass();
    final ComponentView view = ejb.getView(viewClass.getName());
    if (view == null) {
        throw EjbLogger.ROOT_LOGGER.viewNotFound(viewClass.getName(), ejb.getEjbName());
    }
    // make sure it's a remote view
    if (!ejb.isRemoteView(viewClass.getName())) {
        throw EjbLogger.ROOT_LOGGER.viewNotFound(viewClass.getName(), ejb.getEjbName());
    }
    final ClonerConfiguration paramConfig = new ClonerConfiguration();
    paramConfig.setClassCloner(new ClassLoaderClassCloner(ejb.getDeploymentClassLoader()));
    final ObjectCloner parameterCloner = createCloner(paramConfig);
    // TODO: this is not very efficient
    final Method method = view.getMethod(invocation.getInvokedMethod().getName(), DescriptorUtils.methodDescriptor(invocation.getInvokedMethod()));
    final boolean async = view.isAsynchronous(method) || invocation.isClientAsync();
    final Object[] parameters;
    if (invocation.getParameters() == null) {
        parameters = EMPTY_STRING_ARRAY;
    } else {
        parameters = new Object[invocation.getParameters().length];
        for (int i = 0; i < parameters.length; ++i) {
            parameters[i] = clone(method.getParameterTypes()[i], parameterCloner, invocation.getParameters()[i], allowPassByReference);
        }
    }
    final InterceptorContext interceptorContext = new InterceptorContext();
    interceptorContext.setParameters(parameters);
    interceptorContext.setMethod(method);
    interceptorContext.setTransaction(invocation.getTransaction());
    interceptorContext.setTarget(invocation.getInvokedProxy());
    // setup the context data in the InterceptorContext
    final Map<AttachmentKey<?>, ?> privateAttachments = invocation.getAttachments();
    final Map<String, Object> invocationContextData = invocation.getContextData();
    if (invocationContextData == null && privateAttachments.isEmpty()) {
        // no private or public data
        interceptorContext.setContextData(new HashMap<String, Object>());
    } else {
        final Map<String, Object> data = new HashMap<String, Object>();
        interceptorContext.setContextData(data);
        // write out public (application specific) context data
        if (invocationContextData != null)
            for (Map.Entry<String, Object> entry : invocationContextData.entrySet()) {
                data.put(entry.getKey(), entry.getValue());
            }
        if (!privateAttachments.isEmpty()) {
            // now write out the JBoss specific attachments under a single key and the value will be the
            // entire map of JBoss specific attachments
            data.put(EJBClientInvocationContext.PRIVATE_ATTACHMENTS_KEY, privateAttachments);
        }
        // Note: The code here is just for backward compatibility of 1.0.x version of Jakarta Enterprise Beans client project
        // against AS7 7.1.x releases. Discussion here https://github.com/jbossas/jboss-ejb-client/pull/11#issuecomment-6573863
        final boolean txIdAttachmentPresent = privateAttachments.containsKey(AttachmentKeys.TRANSACTION_ID_KEY);
        if (txIdAttachmentPresent) {
            // we additionally add/duplicate the transaction id under a different attachment key
            // to preserve backward compatibility. This is here just for 1.0.x backward compatibility
            data.put(TransactionID.PRIVATE_DATA_KEY, privateAttachments.get(AttachmentKeys.TRANSACTION_ID_KEY));
        }
    }
    interceptorContext.putPrivateData(Component.class, ejbComponent);
    interceptorContext.putPrivateData(ComponentView.class, view);
    if (locator.isStateful()) {
        interceptorContext.putPrivateData(SessionID.class, locator.asStateful().getSessionId());
    } else if (locator instanceof EntityEJBLocator) {
        throw EjbLogger.ROOT_LOGGER.ejbNotFoundInDeployment(locator);
    }
    final ClonerConfiguration config = new ClonerConfiguration();
    config.setClassCloner(new LocalInvocationClassCloner(WildFlySecurityManager.getClassLoaderPrivileged(invocation.getInvokedProxy().getClass())));
    final ObjectCloner resultCloner = createCloner(config);
    if (async) {
        if (ejbComponent instanceof SessionBeanComponent) {
            final CancellationFlag flag = new CancellationFlag();
            final SessionBeanComponent component = (SessionBeanComponent) ejbComponent;
            final boolean isAsync = view.isAsynchronous(method);
            final boolean oneWay = isAsync && method.getReturnType() == void.class;
            final boolean isSessionBean = view.getComponent() instanceof SessionBeanComponent;
            if (isAsync && isSessionBean && !oneWay) {
                interceptorContext.putPrivateData(CancellationFlag.class, flag);
            }
            final SecurityDomain securityDomain;
            if (WildFlySecurityManager.isChecking()) {
                securityDomain = AccessController.doPrivileged((PrivilegedAction<SecurityDomain>) SecurityDomain::getCurrent);
            } else {
                securityDomain = SecurityDomain.getCurrent();
            }
            final SecurityIdentity securityIdentity = securityDomain != null ? securityDomain.getCurrentSecurityIdentity() : null;
            final StartupCountdown.Frame frame = StartupCountdown.current();
            final Runnable task = () -> {
                if (!flag.runIfNotCancelled()) {
                    receiverContext.requestCancelled();
                    return;
                }
                StartupCountdown.restore(frame);
                try {
                    final Object result;
                    try {
                        result = view.invoke(interceptorContext);
                    } catch (Exception e) {
                        // WFLY-4331 - clone the exception of an async task
                        receiverContext.resultReady(new CloningExceptionProducer(resultCloner, e, allowPassByReference));
                        return;
                    }
                    // if the result is null, there is no cloning needed
                    if (result == null) {
                        receiverContext.resultReady(NULL_RESULT);
                        return;
                    }
                    // WFLY-4331 - clone the result of an async task
                    if (result instanceof Future) {
                        // blocking is very unlikely here, so just defer interrupts when they happen
                        boolean intr = Thread.interrupted();
                        Object asyncValue;
                        try {
                            for (; ; ) try {
                                asyncValue = ((Future<?>) result).get();
                                break;
                            } catch (InterruptedException e) {
                                intr = true;
                            } catch (ExecutionException e) {
                                // WFLY-4331 - clone the exception of an async task
                                receiverContext.resultReady(new CloningExceptionProducer(resultCloner, e, allowPassByReference));
                                return;
                            }
                        } finally {
                            if (intr)
                                Thread.currentThread().interrupt();
                        }
                        // if the return value is null, there is no cloning needed
                        if (asyncValue == null) {
                            receiverContext.resultReady(NULL_RESULT);
                            return;
                        }
                        receiverContext.resultReady(new CloningResultProducer(invocation, resultCloner, asyncValue, allowPassByReference));
                        return;
                    }
                    receiverContext.resultReady(new CloningResultProducer(invocation, resultCloner, result, allowPassByReference));
                } finally {
                    StartupCountdown.restore(null);
                }
            };
            invocation.putAttachment(CANCELLATION_FLAG_ATTACHMENT_KEY, flag);
            interceptorContext.putPrivateData(CancellationFlag.class, flag);
            final ExecutorService executor = component.getAsynchronousExecutor();
            if (executor == null) {
                receiverContext.resultReady(new EJBReceiverInvocationContext.ResultProducer.Failed(EjbLogger.ROOT_LOGGER.executorIsNull()));
            } else {
                // this normally isn't necessary unless the client didn't detect that it was an async method for some reason
                receiverContext.proceedAsynchronously();
                executor.execute(securityIdentity == null ? task : () -> securityIdentity.runAs(task));
            }
        } else {
            throw EjbLogger.ROOT_LOGGER.asyncInvocationOnlyApplicableForSessionBeans();
        }
    } else {
        final Object result;
        try {
            result = view.invoke(interceptorContext);
        } catch (Exception e) {
            // we even have to clone the exception type
            // to make sure it matches
            receiverContext.resultReady(new CloningExceptionProducer(resultCloner, e, allowPassByReference));
            return;
        }
        receiverContext.resultReady(new CloningResultProducer(invocation, resultCloner, result, allowPassByReference));
        for (Map.Entry<String, Object> entry : interceptorContext.getContextData().entrySet()) {
            if (entry.getValue() instanceof Serializable) {
                invocation.getContextData().put(entry.getKey(), entry.getValue());
            }
        }
    }
}