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*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
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*
* This software is distributed in the hope that it will be useful,
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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package org.jboss.as.ejb3.deployment.processors.merging;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import javax.ejb.Asynchronous;
import org.jboss.as.ee.component.ComponentConfiguration;
import org.jboss.as.ee.component.ComponentConfigurator;
import org.jboss.as.ee.component.ComponentDescription;
import org.jboss.as.ee.component.DependencyConfigurator;
import org.jboss.as.ee.component.EEApplicationClasses;
import org.jboss.as.ee.component.ViewConfiguration;
import org.jboss.as.ee.component.ViewConfigurator;
import org.jboss.as.ee.component.ViewDescription;
import org.jboss.as.ee.component.interceptors.InterceptorOrder;
import org.jboss.as.ee.metadata.MethodAnnotationAggregator;
import org.jboss.as.ee.metadata.RuntimeAnnotationInformation;
import org.jboss.as.ejb3.logging.EjbLogger;
import org.jboss.as.ejb3.component.EJBViewDescription;
import org.jboss.as.ejb3.component.interceptors.AsyncFutureInterceptorFactory;
import org.jboss.as.ejb3.component.interceptors.LogDiagnosticContextRecoveryInterceptor;
import org.jboss.as.ejb3.component.interceptors.LogDiagnosticContextStorageInterceptor;
import org.jboss.as.ejb3.component.session.SessionBeanComponentCreateService;
import org.jboss.as.ejb3.component.session.SessionBeanComponentDescription;
import org.jboss.as.ejb3.deployment.processors.dd.MethodResolutionUtils;
import org.jboss.as.server.deployment.DeploymentPhaseContext;
import org.jboss.as.server.deployment.DeploymentUnit;
import org.jboss.as.server.deployment.DeploymentUnitProcessingException;
import org.jboss.as.server.deployment.reflect.ClassReflectionIndexUtil;
import org.jboss.as.server.deployment.reflect.DeploymentReflectionIndex;
import org.jboss.invocation.proxy.MethodIdentifier;
import org.jboss.metadata.ejb.spec.AsyncMethodMetaData;
import org.jboss.metadata.ejb.spec.AsyncMethodsMetaData;
import org.jboss.metadata.ejb.spec.SessionBean31MetaData;
import org.jboss.metadata.ejb.spec.SessionBeanMetaData;
import org.jboss.msc.service.ServiceBuilder;
import org.jboss.msc.service.ServiceName;
/**
* Merging processor that handles EJB async methods, and adds a configurator to configure any that are found.
*
* @author Stuart Douglas
*/
public class AsynchronousMergingProcessor extends AbstractMergingProcessor<SessionBeanComponentDescription> {
final ServiceName asynchronousThreadPoolService;
public AsynchronousMergingProcessor(final ServiceName asynchronousThreadPoolService) {
super(SessionBeanComponentDescription.class);
this.asynchronousThreadPoolService = asynchronousThreadPoolService;
}
@Override
protected void handleAnnotations(final DeploymentUnit deploymentUnit, final EEApplicationClasses applicationClasses, final DeploymentReflectionIndex deploymentReflectionIndex, final Class<?> componentClass, final SessionBeanComponentDescription description) throws DeploymentUnitProcessingException {
final RuntimeAnnotationInformation<Boolean> data = MethodAnnotationAggregator.runtimeAnnotationInformation(componentClass, applicationClasses, deploymentReflectionIndex, Asynchronous.class);
for (final Map.Entry<String, List<Boolean>> entry : data.getClassAnnotations().entrySet()) {
if (!entry.getValue().isEmpty()) {
description.addAsynchronousClass(entry.getKey());
}
}
for (final Map.Entry<Method, List<Boolean>> entry : data.getMethodAnnotations().entrySet()) {
if (!entry.getValue().isEmpty()) {
description.addAsynchronousMethod(MethodIdentifier.getIdentifierForMethod(entry.getKey()));
}
}
}
@Override
protected void handleDeploymentDescriptor(final DeploymentUnit deploymentUnit, final DeploymentReflectionIndex deploymentReflectionIndex, final Class<?> componentClass, final SessionBeanComponentDescription description) throws DeploymentUnitProcessingException {
final SessionBeanMetaData data = description.getDescriptorData();
if (data != null) {
if (data instanceof SessionBean31MetaData) {
final SessionBean31MetaData sessionBeanData = (SessionBean31MetaData) data;
final AsyncMethodsMetaData async = sessionBeanData.getAsyncMethods();
if (async != null) {
for (AsyncMethodMetaData method : async) {
final Collection<Method> methods = MethodResolutionUtils.resolveMethods(method.getMethodName(), method.getMethodParams(), componentClass, deploymentReflectionIndex);
for(final Method m : methods ) {
description.addAsynchronousMethod(MethodIdentifier.getIdentifierForMethod(m));
}
}
}
}
}
if (!description.getAsynchronousClasses().isEmpty() ||
!description.getAsynchronousMethods().isEmpty()) {
//setup a dependency on the executor service
description.getConfigurators().add(new ComponentConfigurator() {
@Override
public void configure(final DeploymentPhaseContext context, final ComponentDescription description, final ComponentConfiguration configuration) throws DeploymentUnitProcessingException {
configuration.getCreateDependencies().add(new DependencyConfigurator<SessionBeanComponentCreateService>() {
@Override
public void configureDependency(final ServiceBuilder<?> serviceBuilder, final SessionBeanComponentCreateService service) throws DeploymentUnitProcessingException {
serviceBuilder.addDependency(asynchronousThreadPoolService, ExecutorService.class, service.getAsyncExecutorService());
}
});
}
});
for (final ViewDescription view : description.getViews()) {
final EJBViewDescription ejbView = (EJBViewDescription) view;
ejbView.getConfigurators().add(new ViewConfigurator() {
@Override
public void configure(final DeploymentPhaseContext context, final ComponentConfiguration componentConfiguration, final ViewDescription description, final ViewConfiguration configuration) throws DeploymentUnitProcessingException {
final SessionBeanComponentDescription componentDescription = (SessionBeanComponentDescription) componentConfiguration.getComponentDescription();
for (final Method method : configuration.getProxyFactory().getCachedMethods()) {
//we need the component method to get the correct declaring class
final Method componentMethod = ClassReflectionIndexUtil.findMethod(deploymentReflectionIndex, componentClass, method);
if (componentMethod != null) {
if (componentDescription.getAsynchronousClasses().contains(componentMethod.getDeclaringClass().getName())) {
addAsyncInterceptor(configuration, method);
configuration.addAsyncMethod(method);
} else {
MethodIdentifier id = MethodIdentifier.getIdentifierForMethod(method);
if (componentDescription.getAsynchronousMethods().contains(id)) {
addAsyncInterceptor(configuration, method);
configuration.addAsyncMethod(method);
}
}
}
}
}
});
}
}
}
private static void addAsyncInterceptor(final ViewConfiguration configuration, final Method method) throws DeploymentUnitProcessingException {
if (method.getReturnType().equals(void.class) || method.getReturnType().equals(Future.class)) {
configuration.addClientInterceptor(method, LogDiagnosticContextStorageInterceptor.getFactory(), InterceptorOrder.Client.LOCAL_ASYNC_LOG_SAVE);
configuration.addClientInterceptor(method, AsyncFutureInterceptorFactory.INSTANCE, InterceptorOrder.Client.LOCAL_ASYNC_INVOCATION);
configuration.addClientInterceptor(method, LogDiagnosticContextRecoveryInterceptor.getFactory(), InterceptorOrder.Client.LOCAL_ASYNC_LOG_RESTORE);
} else {
throw EjbLogger.ROOT_LOGGER.wrongReturnTypeForAsyncMethod(method);
}
}
}