Examples with AsynchronousPool org.apache.openejb.async.AsynchronousPool used on opensource projects

Example 1 with AsynchronousPool

use of org.apache.openejb.async.AsynchronousPool in project tomee by apache.

the class Assembler method destroyApplication.

public void destroyApplication(final AppInfo appInfo) throws UndeployException {
    final ReentrantLock l = lock;
    l.lock();
    try {
        deployedApplications.remove(appInfo.path);
        logger.info("destroyApplication.start", appInfo.path);
        final Context globalContext = containerSystem.getJNDIContext();
        final AppContext appContext = containerSystem.getAppContext(appInfo.appId);
        if (null == appContext) {
            logger.warning("Application id '" + appInfo.appId + "' not found in: " + Arrays.toString(containerSystem.getAppContextKeys()));
            return;
        }
        final ClassLoader classLoader = appContext.getClassLoader();
        SystemInstance.get().fireEvent(new AssemblerBeforeApplicationDestroyed(appInfo, appContext));
        // noinspection ConstantConditions
        final WebBeansContext webBeansContext = appContext.getWebBeansContext();
        if (webBeansContext != null) {
            final ClassLoader old = Thread.currentThread().getContextClassLoader();
            Thread.currentThread().setContextClassLoader(classLoader);
            try {
                final ServletContext context = appContext.isStandaloneModule() && appContext.getWebContexts().iterator().hasNext() ? appContext.getWebContexts().iterator().next().getServletContext() : null;
                webBeansContext.getService(ContainerLifecycle.class).stopApplication(context);
            } finally {
                Thread.currentThread().setContextClassLoader(old);
            }
        }
        final Map<String, Object> cb = appContext.getBindings();
        for (final Entry<String, Object> value : cb.entrySet()) {
            String path = value.getKey();
            if (path.startsWith("global")) {
                path = "java:" + path;
            }
            if (!path.startsWith("java:global")) {
                continue;
            }
            if (IvmContext.class.isInstance(globalContext)) {
                IvmContext.class.cast(globalContext).setReadOnly(false);
            }
            unbind(globalContext, path);
            unbind(globalContext, "openejb/global/" + path.substring("java:".length()));
            unbind(globalContext, path.substring("java:global".length()));
        }
        if (appInfo.appId != null && !appInfo.appId.isEmpty() && !"openejb".equals(appInfo.appId)) {
            unbind(globalContext, "global/" + appInfo.appId);
            unbind(globalContext, appInfo.appId);
        }
        final EjbResolver globalResolver = new EjbResolver(null, EjbResolver.Scope.GLOBAL);
        for (final AppInfo info : deployedApplications.values()) {
            globalResolver.addAll(info.ejbJars);
        }
        SystemInstance.get().setComponent(EjbResolver.class, globalResolver);
        final UndeployException undeployException = new UndeployException(messages.format("destroyApplication.failed", appInfo.path));
        final WebAppBuilder webAppBuilder = SystemInstance.get().getComponent(WebAppBuilder.class);
        if (webAppBuilder != null && !appInfo.webAppAlone) {
            try {
                webAppBuilder.undeployWebApps(appInfo);
            } catch (final Exception e) {
                undeployException.getCauses().add(new Exception("App: " + appInfo.path + ": " + e.getMessage(), e));
            }
        }
        // get all of the ejb deployments
        List<BeanContext> deployments = new ArrayList<>();
        for (final EjbJarInfo ejbJarInfo : appInfo.ejbJars) {
            for (final EnterpriseBeanInfo beanInfo : ejbJarInfo.enterpriseBeans) {
                final String deploymentId = beanInfo.ejbDeploymentId;
                final BeanContext beanContext = containerSystem.getBeanContext(deploymentId);
                if (beanContext == null) {
                    undeployException.getCauses().add(new Exception("deployment not found: " + deploymentId));
                } else {
                    deployments.add(beanContext);
                }
            }
        }
        // Just as with startup we need to get things in an
        // order that respects the singleton @DependsOn information
        // Theoreticlly if a Singleton depends on something in its
        // @PostConstruct, it can depend on it in its @PreDestroy.
        // Therefore we want to make sure that if A dependsOn B,
        // that we destroy A first then B so that B will still be
        // usable in the @PreDestroy method of A.
        // Sort them into the original starting order
        deployments = sort(deployments);
        // reverse that to get the stopping order
        Collections.reverse(deployments);
        // stop
        for (final BeanContext deployment : deployments) {
            final String deploymentID = String.valueOf(deployment.getDeploymentID());
            try {
                final Container container = deployment.getContainer();
                container.stop(deployment);
            } catch (final Throwable t) {
                undeployException.getCauses().add(new Exception("bean: " + deploymentID + ": " + t.getMessage(), t));
            }
        }
        // undeploy
        for (final BeanContext bean : deployments) {
            final String deploymentID = String.valueOf(bean.getDeploymentID());
            try {
                final Container container = bean.getContainer();
                container.undeploy(bean);
                bean.setContainer(null);
            } catch (final Throwable t) {
                undeployException.getCauses().add(new Exception("bean: " + deploymentID + ": " + t.getMessage(), t));
            } finally {
                bean.setDestroyed(true);
            }
        }
        if (webAppBuilder != null && appInfo.webAppAlone) {
            // now that EJB are stopped we can undeploy webapps
            try {
                webAppBuilder.undeployWebApps(appInfo);
            } catch (final Exception e) {
                undeployException.getCauses().add(new Exception("App: " + appInfo.path + ": " + e.getMessage(), e));
            }
        }
        // get the client ids
        final List<String> clientIds = new ArrayList<>();
        for (final ClientInfo clientInfo : appInfo.clients) {
            clientIds.add(clientInfo.moduleId);
            clientIds.addAll(clientInfo.localClients);
            clientIds.addAll(clientInfo.remoteClients);
        }
        for (final WebContext webContext : appContext.getWebContexts()) {
            containerSystem.removeWebContext(webContext);
        }
        TldScanner.forceCompleteClean(classLoader);
        // Clear out naming for all components first
        for (final BeanContext deployment : deployments) {
            final String deploymentID = String.valueOf(deployment.getDeploymentID());
            try {
                containerSystem.removeBeanContext(deployment);
            } catch (final Throwable t) {
                undeployException.getCauses().add(new Exception(deploymentID, t));
            }
            final JndiBuilder.Bindings bindings = deployment.get(JndiBuilder.Bindings.class);
            if (bindings != null) {
                for (final String name : bindings.getBindings()) {
                    try {
                        globalContext.unbind(name);
                    } catch (final Throwable t) {
                        undeployException.getCauses().add(new Exception("bean: " + deploymentID + ": " + t.getMessage(), t));
                    }
                }
            }
        }
        // stop this executor only now since @PreDestroy can trigger some stop events
        final AsynchronousPool pool = appContext.get(AsynchronousPool.class);
        if (pool != null) {
            pool.stop();
        }
        for (final CommonInfoObject jar : listCommonInfoObjectsForAppInfo(appInfo)) {
            try {
                globalContext.unbind(VALIDATOR_FACTORY_NAMING_CONTEXT + jar.uniqueId);
                globalContext.unbind(VALIDATOR_NAMING_CONTEXT + jar.uniqueId);
            } catch (final NamingException e) {
                if (EjbJarInfo.class.isInstance(jar)) {
                    undeployException.getCauses().add(new Exception("validator: " + jar.uniqueId + ": " + e.getMessage(), e));
                }
            // else an error but not that important
            }
        }
        try {
            if (globalContext instanceof IvmContext) {
                final IvmContext ivmContext = (IvmContext) globalContext;
                ivmContext.prune("openejb/Deployment");
                ivmContext.prune("openejb/local");
                ivmContext.prune("openejb/remote");
                ivmContext.prune("openejb/global");
            }
        } catch (final NamingException e) {
            undeployException.getCauses().add(new Exception("Unable to prune openejb/Deployments and openejb/local namespaces, this could cause future deployments to fail.", e));
        }
        deployments.clear();
        for (final String clientId : clientIds) {
            try {
                globalContext.unbind("/openejb/client/" + clientId);
            } catch (final Throwable t) {
                undeployException.getCauses().add(new Exception("client: " + clientId + ": " + t.getMessage(), t));
            }
        }
        // mbeans
        final MBeanServer server = LocalMBeanServer.get();
        for (final Object objectName : appInfo.jmx.values()) {
            try {
                final ObjectName on = new ObjectName((String) objectName);
                if (server.isRegistered(on)) {
                    server.unregisterMBean(on);
                }
                final CreationalContext cc = creationalContextForAppMbeans.remove(on);
                if (cc != null) {
                    cc.release();
                }
            } catch (final InstanceNotFoundException e) {
                logger.warning("can't unregister " + objectName + " because the mbean was not found", e);
            } catch (final MBeanRegistrationException e) {
                logger.warning("can't unregister " + objectName, e);
            } catch (final MalformedObjectNameException mone) {
                logger.warning("can't unregister because the ObjectName is malformed: " + objectName, mone);
            }
        }
        // destroy PUs before resources since the JPA provider can use datasources
        for (final PersistenceUnitInfo unitInfo : appInfo.persistenceUnits) {
            try {
                final Object object = globalContext.lookup(PERSISTENCE_UNIT_NAMING_CONTEXT + unitInfo.id);
                globalContext.unbind(PERSISTENCE_UNIT_NAMING_CONTEXT + unitInfo.id);
                // close EMF so all resources are released
                final ReloadableEntityManagerFactory remf = (ReloadableEntityManagerFactory) object;
                remf.close();
                persistenceClassLoaderHandler.destroy(unitInfo.id);
                remf.unregister();
            } catch (final Throwable t) {
                undeployException.getCauses().add(new Exception("persistence-unit: " + unitInfo.id + ": " + t.getMessage(), t));
            }
        }
        for (final String id : appInfo.resourceAliases) {
            final String name = OPENEJB_RESOURCE_JNDI_PREFIX + id;
            ContextualJndiReference.followReference.set(false);
            try {
                final Object object;
                try {
                    object = globalContext.lookup(name);
                } finally {
                    ContextualJndiReference.followReference.remove();
                }
                if (object instanceof ContextualJndiReference) {
                    final ContextualJndiReference contextualJndiReference = ContextualJndiReference.class.cast(object);
                    contextualJndiReference.removePrefix(appContext.getId());
                    if (contextualJndiReference.hasNoMorePrefix()) {
                        globalContext.unbind(name);
                    }
                // else not the last deployed application to use this resource so keep it
                } else {
                    globalContext.unbind(name);
                }
            } catch (final NamingException e) {
                logger.warning("can't unbind resource '{0}'", id);
            }
        }
        for (final String id : appInfo.resourceIds) {
            final String name = OPENEJB_RESOURCE_JNDI_PREFIX + id;
            try {
                destroyLookedUpResource(globalContext, id, name);
            } catch (final NamingException e) {
                logger.warning("can't unbind resource '{0}'", id);
            }
        }
        for (final ConnectorInfo connector : appInfo.connectors) {
            if (connector.resourceAdapter == null || connector.resourceAdapter.id == null) {
                continue;
            }
            final String name = OPENEJB_RESOURCE_JNDI_PREFIX + connector.resourceAdapter.id;
            try {
                destroyLookedUpResource(globalContext, connector.resourceAdapter.id, name);
            } catch (final NamingException e) {
                logger.warning("can't unbind resource '{0}'", connector);
            }
            for (final ResourceInfo outbound : connector.outbound) {
                try {
                    destroyLookedUpResource(globalContext, outbound.id, OPENEJB_RESOURCE_JNDI_PREFIX + outbound.id);
                } catch (final Exception e) {
                // no-op
                }
            }
            for (final ResourceInfo outbound : connector.adminObject) {
                try {
                    destroyLookedUpResource(globalContext, outbound.id, OPENEJB_RESOURCE_JNDI_PREFIX + outbound.id);
                } catch (final Exception e) {
                // no-op
                }
            }
            for (final MdbContainerInfo container : connector.inbound) {
                try {
                    containerSystem.removeContainer(container.id);
                    config.containerSystem.containers.remove(container);
                    this.containerSystem.getJNDIContext().unbind(JAVA_OPENEJB_NAMING_CONTEXT + container.service + "/" + container.id);
                } catch (final Exception e) {
                // no-op
                }
            }
        }
        for (final ContainerInfo containerInfo : appInfo.containers) {
            if (!containerInfo.applicationWide) {
                removeContainer(containerInfo.id);
            }
        }
        containerSystem.removeAppContext(appInfo.appId);
        if (!appInfo.properties.containsKey("tomee.destroying")) {
            // destroy tomee classloader after resources cleanup
            try {
                final Method m = classLoader.getClass().getMethod("internalStop");
                m.invoke(classLoader);
            } catch (final NoSuchMethodException nsme) {
            // no-op
            } catch (final Exception e) {
                logger.error("error stopping classloader of webapp " + appInfo.appId, e);
            }
            ClassLoaderUtil.cleanOpenJPACache(classLoader);
        }
        ClassLoaderUtil.destroyClassLoader(appInfo.appId, appInfo.path);
        if (undeployException.getCauses().size() > 0) {
            // logging causes here otherwise it will be eaten in later logs.
            for (Throwable cause : undeployException.getCauses()) {
                logger.error("undeployException original cause", cause);
            }
            throw undeployException;
        }
        logger.debug("destroyApplication.success", appInfo.path);
    } finally {
        l.unlock();
    }
}