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EjbComponentProvider.java
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EjbComponentProvider.java
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/*
* Copyright (c) 2021, 2024 Contributors to the Eclipse Foundation.
* Copyright (c) 2012, 2021 Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2018, 2019 Payara Foundation and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.glassfish.jersey.gf.ejb.internal;
import com.sun.ejb.containers.BaseContainer;
import com.sun.ejb.containers.EjbContainerUtil;
import com.sun.ejb.containers.EjbContainerUtilImpl;
import com.sun.ejb.containers.InternalInterceptorBindingImpl;
import com.sun.ejb.containers.InternalInterceptorBindingNamingProxy;
import com.sun.enterprise.config.serverbeans.Application;
import com.sun.enterprise.config.serverbeans.Applications;
import jakarta.annotation.Priority;
import jakarta.ejb.Singleton;
import jakarta.ejb.Stateful;
import jakarta.ejb.Stateless;
import jakarta.ws.rs.ext.ExceptionMapper;
import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.text.MessageFormat;
import java.util.Collection;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import org.glassfish.ejb.deployment.descriptor.EjbBundleDescriptorImpl;
import org.glassfish.ejb.deployment.descriptor.EjbDescriptor;
import org.glassfish.internal.data.ApplicationInfo;
import org.glassfish.internal.data.ApplicationRegistry;
import org.glassfish.internal.data.ModuleInfo;
import org.glassfish.jersey.inject.hk2.AbstractBinder;
import org.glassfish.jersey.internal.inject.Binding;
import org.glassfish.jersey.inject.hk2.Bindings;
import org.glassfish.jersey.internal.inject.InjectionManager;
import org.glassfish.jersey.server.model.Invocable;
import org.glassfish.jersey.server.spi.ComponentProvider;
import org.glassfish.jersey.server.spi.internal.ResourceMethodInvocationHandlerProvider;
import static org.glassfish.api.naming.SimpleJndiName.JNDI_CTX_JAVA_APP;
import static org.glassfish.jersey.gf.ejb.internal.EjbClassUtilities.getRemoteAndLocalIfaces;
/**
* EJB component provider.
*
* @author Paul Sandoz
* @author Jakub Podlesak
*/
@Priority(300)
public final class EjbComponentProvider implements ComponentProvider, ResourceMethodInvocationHandlerProvider {
private static final Logger LOG = Logger.getLogger(EjbComponentProvider.class.getName());
private static final String JNDI_JAVA_APP_NAME = JNDI_CTX_JAVA_APP + "AppName";
/**Annotations to determine EJB components. */
private static final Set<String> EJB_ANNOTATIONS = Stream.of(Stateful.class, Stateless.class, Singleton.class)
.map(Class::getName).collect(Collectors.toUnmodifiableSet());
private final List<String> moduleNames = new CopyOnWriteArrayList<>();
private InitialContext initialContext;
private InjectionManager injectionManager;
private boolean ejbInterceptorRegistered;
@Override
public void initialize(final InjectionManager injectionManager) {
this.injectionManager = injectionManager;
this.injectionManager.register(
Bindings.service(EjbComponentProvider.this)
.to(ResourceMethodInvocationHandlerProvider.class));
}
@Override
public boolean bind(final Class<?> component, final Set<Class<?>> providerContracts) {
LOG.log(Level.FINE, "Class, {0}, is being checked with Jersey EJB component provider.", component);
if (injectionManager == null) {
throw new IllegalStateException("EJB component provider has not been initialized properly.");
}
if (!isEjbComponent(component)) {
return false;
}
if (!ejbInterceptorRegistered) {
registerEjbInterceptor(component);
}
registerBinding(component, providerContracts);
LOG.log(Level.CONFIG, "Class, {0}, has been bound by Jersey EJB component provider.", component);
return true;
}
@Override
public void done() {
injectionManager.register(new EjbComponentBinder());
}
@Override
public InvocationHandler create(Invocable method) {
final Class<?> resourceClass = method.getHandler().getHandlerClass();
if (resourceClass == null || !isEjbComponent(resourceClass)) {
return null;
}
final Method handlingMethod = method.getDefinitionMethod();
for (Class<?> iFace : getRemoteAndLocalIfaces(resourceClass)) {
try {
final Method iFaceMethod = iFace.getDeclaredMethod(handlingMethod.getName(), handlingMethod.getParameterTypes());
if (iFaceMethod != null) {
return (target, ignored, args) -> iFaceMethod.invoke(target, args);
}
} catch (NoSuchMethodException | SecurityException ex) {
logLookupException(handlingMethod, resourceClass, iFace, ex);
}
}
return null;
}
/**
* @return list of application's modules.
*/
public List<String> getModuleNames() {
return List.copyOf(moduleNames);
}
private void registerEjbInterceptor(final Class<?> component) {
try {
initialContext = getInitialContext();
final EjbComponentInterceptor interceptor = new EjbComponentInterceptor(injectionManager);
final EjbContainerUtil ejbUtil = EjbContainerUtilImpl.getInstance();
final ApplicationInfo appInfo = getApplicationInfo(ejbUtil);
for (ModuleInfo moduleInfo : appInfo.getModuleInfos()) {
final String fileName = moduleInfo.getName();
if (isProbableEjbModule(fileName)) {
final String moduleName = fileName.substring(0, fileName.length() - 4);
final Object bundleDescriptor = moduleInfo.getMetaData(EjbBundleDescriptorImpl.class.getName());
if (bundleDescriptor instanceof EjbBundleDescriptorImpl) {
final Collection<EjbDescriptor> ejbs = ((EjbBundleDescriptorImpl) bundleDescriptor).getEjbs();
for (final EjbDescriptor ejb : ejbs) {
final BaseContainer ejbContainer = EjbContainerUtilImpl.getInstance().getContainer(ejb.getUniqueId());
if (ejbContainer.getEJBClass() != component) {
continue;
}
moduleNames.add(moduleName);
ejbContainer.registerSystemInterceptor(interceptor);
}
}
}
}
final InternalInterceptorBindingImpl interceptorBinder = (InternalInterceptorBindingImpl) initialContext
.lookup(InternalInterceptorBindingNamingProxy.INTERCEPTOR_BINDING);
// Some implementations of InitialContext return null instead of throwing
// NamingException if there is no Object associated with the name
if (interceptorBinder == null) {
throw new IllegalStateException(
"The EJB interceptor binding API is not available. Jersey EJB integration can not be supported.");
}
interceptorBinder.registerInterceptor(interceptor);
this.ejbInterceptorRegistered = true;
LOG.log(Level.CONFIG, "The Jersey EJB interceptor is bound. Jersey EJB integration support is enabled.");
} catch (NamingException ex) {
throw new IllegalStateException(
"The EJB interceptor binding API is not available. Jersey EJB integration can not be supported.", ex);
} catch (LinkageError ex) {
throw new IllegalStateException("Linkage error when configuring to use the EJB interceptor binding API."
+ " Jersey EJB integration can not be supported.", ex);
}
}
private boolean isProbableEjbModule(final String jarName) {
return jarName.endsWith(".jar") || jarName.endsWith(".war");
}
// Jersey's API is inconsistent here, missing generics
@SuppressWarnings({"rawtypes", "unchecked"})
private void registerBinding(final Class<?> component, final Set<Class<?>> providerContracts) {
final EjbSupplier ejbSupplier = new EjbSupplier<>(component, initialContext, this);
final Binding binding = Bindings.supplier(ejbSupplier).to(component).to(providerContracts);
injectionManager.register(binding);
}
private ApplicationInfo getApplicationInfo(final EjbContainerUtil ejbUtil) throws NamingException {
final ApplicationRegistry appRegistry = ejbUtil.getServices().getService(ApplicationRegistry.class);
final Applications applications = ejbUtil.getServices().getService(Applications.class);
final String appNamePrefix = (String) initialContext.lookup(JNDI_JAVA_APP_NAME);
final Set<String> appNames = appRegistry.getAllApplicationNames();
final TreeSet<String> disabledApps = new TreeSet<>();
for (final String appName : appNames) {
if (appName.startsWith(appNamePrefix)) {
final Application appDesc = applications.getApplication(appName);
if (appDesc != null && !ejbUtil.getDeployment().isAppEnabled(appDesc)) {
// skip disabled version of the app
disabledApps.add(appName);
} else {
return ejbUtil.getDeployment().get(appName);
}
}
}
// grab the latest one, there is no way to make
// sure which one the user is actually enabling,
// so use the best case, i.e. upgrade
final String lastDisabledApp = disabledApps.last();
if (lastDisabledApp != null) {
return ejbUtil.getDeployment().get(lastDisabledApp);
}
throw new NamingException("Application Information Not Found");
}
private boolean isEjbComponent(Class<?> component) {
for (Annotation a : component.getAnnotations()) {
if (EJB_ANNOTATIONS.contains(a.annotationType().getName())) {
return true;
}
}
return false;
}
private void logLookupException(final Method method, final Class<?> component, Class<?> iFace, Exception ex) {
LOG.log(Level.WARNING, MessageFormat.format(
"Exception thrown when trying to lookup actual handling method, {0}, for EJB type, {1}, using interface {2}.",
method, component, iFace), ex);
}
private static InitialContext getInitialContext() {
try {
return new InitialContext();
} catch (Exception ex) {
throw new IllegalStateException("InitialContext not found. Jersey EJB support is not available.", ex);
}
}
private static final class EjbComponentBinder extends AbstractBinder {
@Override
protected void configure() {
bind(EjbExceptionMapper.class).to(ExceptionMapper.class).in(jakarta.inject.Singleton.class);
}
}
}