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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2008, Red Hat, Inc., and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jboss.weld.module.ejb;

import java.io.Serializable;

import jakarta.enterprise.context.BeforeDestroyed;
import jakarta.enterprise.context.Destroyed;
import jakarta.enterprise.context.Initialized;
import jakarta.enterprise.context.RequestScoped;
import jakarta.interceptor.InvocationContext;

import org.jboss.weld.context.ejb.EjbRequestContext;
import org.jboss.weld.event.ContextEvent;
import org.jboss.weld.event.FastEvent;
import org.jboss.weld.manager.BeanManagerImpl;
import org.jboss.weld.util.LazyValueHolder;

/**
 * Interceptor for ensuring the request context is active during requests to EJBs.
 * 

* Normally, a servlet will start the request context, however in non-servlet * requests (e.g. MDB, async, timeout) the contexts may need starting. *

* The Application context is active for duration of the deployment * * @author Pete Muir * @author Jozef Hartinger */ public abstract class AbstractEJBRequestScopeActivationInterceptor implements Serializable { private static final long serialVersionUID = 7327757031821596782L; private final LazyValueHolder> requestInitializedEvent = new LazyValueHolder.Serializable>() { private static final long serialVersionUID = 1L; @Override protected FastEvent computeValue() { return FastEvent.of(Object.class, getBeanManager(), getBeanManager().getGlobalLenientObserverNotifier(), Initialized.Literal.REQUEST); } }; private final LazyValueHolder> requestBeforeDestroyedEvent = new LazyValueHolder.Serializable>() { private static final long serialVersionUID = 1L; @Override protected FastEvent computeValue() { return FastEvent.of(Object.class, getBeanManager(), getBeanManager().getGlobalLenientObserverNotifier(), BeforeDestroyed.Literal.REQUEST); } }; private final LazyValueHolder> requestDestroyedEvent = new LazyValueHolder.Serializable>() { private static final long serialVersionUID = 1L; @Override protected FastEvent computeValue() { return FastEvent.of(Object.class, getBeanManager(), getBeanManager().getGlobalLenientObserverNotifier(), Destroyed.Literal.REQUEST); } }; public Object aroundInvoke(InvocationContext invocation) throws Exception { if (isRequestContextActive()) { return invocation.proceed(); } else { EjbRequestContext requestContext = getEjbRequestContext(); try { requestContext.associate(invocation); requestContext.activate(); try { // An event with qualifier @Initialized(RequestScoped.class) is fired when the request context is initialized requestInitializedEvent.get().fire(ContextEvent.REQUEST_INITIALIZED_EJB); return invocation.proceed(); } finally { requestBeforeDestroyedEvent.get().fire(ContextEvent.REQUEST_BEFORE_DESTROYED_EJB); requestContext.invalidate(); requestContext.deactivate(); } } finally { requestContext.dissociate(invocation); // An event with qualifier @Destroyed(RequestScoped.class) when the request context is destroyed requestDestroyedEvent.get().fire(ContextEvent.REQUEST_DESTROYED_EJB); } } } protected boolean isRequestContextActive() { return getBeanManager().isContextActive(RequestScoped.class); } protected EjbRequestContext getEjbRequestContext() { return getBeanManager().instance().select(EjbRequestContext.class).get(); } protected abstract BeanManagerImpl getBeanManager(); }