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Glassfish example source code file (ManagedBeanManagerImpl.java)

This example Glassfish source code file (ManagedBeanManagerImpl.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Glassfish tags/keywords

annotation, bundledescriptor, bundledescriptor, class, exception, exception, illegalstateexception, inject, interceptorinvoker, javaeeinterceptorbuilder, log, logging, managedbeandescriptor, map, map, naming, object, object, reflection, util

The Glassfish ManagedBeanManagerImpl.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package com.sun.enterprise.container.common.impl.managedbean;

import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.Set;
import java.util.Map;
import java.util.List;
import java.util.Collections;
import java.util.HashMap;
import java.lang.reflect.Method;
import java.lang.reflect.Member;
import java.lang.reflect.Field;
import java.lang.reflect.Proxy;
import java.lang.annotation.Annotation;

import javax.naming.InitialContext;


import org.glassfish.api.invocation.InvocationManager;
import org.glassfish.api.invocation.ComponentInvocation;
import org.glassfish.api.naming.GlassfishNamingManager;


import com.sun.enterprise.deployment.util.ModuleDescriptor;

import com.sun.enterprise.deployment.*;
import com.sun.enterprise.container.common.spi.util.ComponentEnvManager;
import com.sun.enterprise.container.common.spi.util.InjectionManager;
import com.sun.logging.LogDomains;

import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.annotations.Inject;
import org.jvnet.hk2.component.Habitat;

import org.jvnet.hk2.component.PostConstruct;

import org.glassfish.api.event.EventListener;
import org.glassfish.api.event.Events;
import org.glassfish.internal.deployment.Deployment;
import org.glassfish.internal.data.ApplicationInfo;
import org.glassfish.internal.api.*;

import org.glassfish.api.admin.ProcessEnvironment;
import org.glassfish.api.admin.ProcessEnvironment.ProcessType;
import org.glassfish.api.Startup;

import com.sun.enterprise.container.common.spi.util.InterceptorInfo;
import com.sun.enterprise.container.common.spi.*;

import org.glassfish.api.naming.NamingObjectProxy;

/**
 */
@Service(name="ManagedBeanManagerImpl")
public class ManagedBeanManagerImpl implements ManagedBeanManager, PostStartup, PostConstruct, EventListener {

     private static Logger _logger = LogDomains.getLogger(ManagedBeanManagerImpl.class,
            LogDomains.CORE_LOGGER);

    @Inject
    private ComponentEnvManager compEnvManager;

    @Inject
    private InvocationManager invocationMgr;

    @Inject
    private InjectionManager injectionMgr;

    @Inject
    private GlassfishNamingManager namingManager;

    @Inject
    private Habitat habitat;

    @Inject
    private Events events;

    @Inject
    private ProcessEnvironment processEnv;

    private ProcessType processType;

    // Keep track of contexts for managed bean instances instantiated via JCDI
    private Map<BundleDescriptor, Map jcdiManagedBeanInstanceMap =
            new HashMap<BundleDescriptor, Map();

    // Used to hold managed beans in app client container
    private Map<String, NamingObjectProxy> appClientManagedBeans = new HashMap();

    public void postConstruct() {
        events.register(this);
        processType = processEnv.getProcessType();
    }

    public Startup.Lifecycle getLifecycle() { return Startup.Lifecycle.SERVER; }

    public void event(Event event) {
        
         if (event.is(Deployment.APPLICATION_LOADED) ) {
             ApplicationInfo info =  Deployment.APPLICATION_LOADED.getHook(event);

             loadManagedBeans(info);

             registerAppLevelDependencies(info);

         } else if( event.is(Deployment.APPLICATION_UNLOADED) ) {
             
             ApplicationInfo info =  Deployment.APPLICATION_UNLOADED.getHook(event);
             Application app = info.getMetaData(Application.class);

             doCleanup(app);

         } else if( event.is(Deployment.DEPLOYMENT_FAILURE) ) {

             Application app = Deployment.DEPLOYMENT_FAILURE.getHook(event).getModuleMetaData(Application.class);

             doCleanup(app);

         }
    }

    private void doCleanup(Application app) {

        if( app != null ) {

            unloadManagedBeans(app);

            unregisterAppLevelDependencies(app);
        }

    }

    private void registerAppLevelDependencies(ApplicationInfo appInfo) {

        Application app = appInfo.getMetaData(Application.class);

        if( app == null ) {
            return;
        }

        try {
            compEnvManager.bindToComponentNamespace(app);
        } catch(Exception e) {
            throw new RuntimeException("Error binding app-level env dependencies " +
                    app.getAppName(), e);
        }

    }


    private void unregisterAppLevelDependencies(Application app) {

         if( app != null ) {
            try {
                compEnvManager.unbindFromComponentNamespace(app);
            } catch(Exception e) {
                _logger.log(Level.FINE, "Exception unbinding app objects", e);
            }
         }
     }



    private void loadManagedBeans(ApplicationInfo appInfo) {

        Application app = appInfo.getMetaData(Application.class);

        if( app == null ) {
            return;
        }

        loadManagedBeans(app);
    }
    
    public void loadManagedBeans(Application app) {


        for(BundleDescriptor bundle : app.getBundleDescriptors()) {

            if (!bundleEligible(bundle)) {
                continue;
            }

            boolean validationRequired  = (bundle instanceof EjbBundleDescriptor)
                    || (bundle instanceof ApplicationClientDescriptor);

            for(ManagedBeanDescriptor next : bundle.getManagedBeans()) {

                try {

                    // TODO Should move this to regular DOL processing stage                                      
                    if( validationRequired ) {
                        next.validate();
                    }

                    Set<String> interceptorClasses = next.getAllInterceptorClasses();


                    Class targetClass = bundle.getClassLoader().loadClass(next.getBeanClassName());
                    InterceptorInfo interceptorInfo = new InterceptorInfo();
                    interceptorInfo.setTargetClass(targetClass);
                    interceptorInfo.setInterceptorClassNames(interceptorClasses);
                    interceptorInfo.setPostConstructInterceptors
                            (next.getCallbackInterceptors(LifecycleCallbackDescriptor.CallbackType.POST_CONSTRUCT));
                      interceptorInfo.setPreDestroyInterceptors
                            (next.getCallbackInterceptors(LifecycleCallbackDescriptor.CallbackType.PRE_DESTROY));
                    if( next.hasAroundInvokeMethod() ) {
                        interceptorInfo.setHasTargetClassAroundInvoke(true);
                    }

                    Map<Method, List> interceptorChains = new HashMap();
                    for(Method m : targetClass.getMethods()) {
                        interceptorChains.put(m, next.getAroundInvokeInterceptors(m) );
                    }

                    interceptorInfo.setAroundInvokeInterceptorChains(interceptorChains);

                    // TODO can optimize this out for the non-JAXRS, non-application specified interceptor case
                    interceptorInfo.setSupportRuntimeDelegate(true);

                    JavaEEInterceptorBuilderFactory interceptorBuilderFactory =
                            habitat.getByContract(JavaEEInterceptorBuilderFactory.class);

                    JavaEEInterceptorBuilder builder = interceptorBuilderFactory.createBuilder(interceptorInfo);

                    next.setInterceptorBuilder(builder);


                    compEnvManager.bindToComponentNamespace(next);

                    String jndiName = next.getGlobalJndiName();
                    ManagedBeanNamingProxy namingProxy =
                        new ManagedBeanNamingProxy(next, habitat);

                    if( processType.isServer() ) {
                        namingManager.publishObject(jndiName, namingProxy, true);
                    } else {
                        // Can't store them in server's global naming service so keep
                        // them in local map.
                        appClientManagedBeans.put(jndiName, namingProxy);
                    }


                } catch(Exception e) {
                    throw new RuntimeException("Error binding ManagedBean " + next.getBeanClassName() +
                    " with name = " + next.getName(), e);
                }
            }

            jcdiManagedBeanInstanceMap.put(bundle,
                Collections.synchronizedMap(new HashMap<Object, JCDIService.JCDIInjectionContext>()));
        }

    }

    public Object getManagedBean(String globalJndiName) throws Exception {

        NamingObjectProxy proxy = appClientManagedBeans.get(globalJndiName);

        Object managedBean = null;

        if( proxy != null ) {

            managedBean = proxy.create(new InitialContext());

        }

        return managedBean;      
    }

    /**
     * Apply a runtime interceptor instance to all managed beans in the given module
     * @param interceptorInstance
     * @param bundle bundle descripto
     *
     */
    public void registerRuntimeInterceptor(Object interceptorInstance, BundleDescriptor bundle) {


        for(ManagedBeanDescriptor next :  bundle.getManagedBeans()) {

            JavaEEInterceptorBuilder interceptorBuilder = (JavaEEInterceptorBuilder)
                       next.getInterceptorBuilder();

            interceptorBuilder.addRuntimeInterceptor(interceptorInstance);

        }

    }

    public void unloadManagedBeans(Application app) {

        for(BundleDescriptor bundle : app.getBundleDescriptors()) {

            if (!bundleEligible(bundle)) {
                continue;
            }

            Map<Object, JCDIService.JCDIInjectionContext> jcdiInstances =
                    jcdiManagedBeanInstanceMap.remove(bundle);

            if( jcdiInstances != null ) {
                for(JCDIService.JCDIInjectionContext next : jcdiInstances.values()) {
                    try {
                        next.cleanup(true);
                    } catch(Exception e) {
                        _logger.log(Level.FINE, "Exception during JCDI cleanup for " + next, e);
                    }
                }
            }

            for(ManagedBeanDescriptor next : bundle.getManagedBeans()) {

                for(Object instance : next.getBeanInstances()) {

                    InterceptorInvoker invoker = (InterceptorInvoker)
                        next.getSupportingInfoForBeanInstance(instance);

                    try {
                        invoker.invokePreDestroy();
                    } catch(Exception e) {
                        _logger.log(Level.FINE, "Managed bean " + next.getBeanClassName() + " PreDestroy", e);
                    }

                }                                 

                com.sun.enterprise.container.common.spi.util.ComponentEnvManager compEnvManager =
                    habitat.getByContract(com.sun.enterprise.container.common.spi.util.ComponentEnvManager.class);

                try {
                    compEnvManager.unbindFromComponentNamespace(next);
                } catch(javax.naming.NamingException ne) {
                    _logger.log(Level.FINE, "Managed bean " + next.getBeanClassName() + " unbind", ne);
                }

                org.glassfish.api.naming.GlassfishNamingManager namingManager =
                        habitat.getByContract(org.glassfish.api.naming.GlassfishNamingManager.class);
                String jndiName = next.getGlobalJndiName();

                if( processType.isServer() ) {
                    try {
                        namingManager.unpublishObject(jndiName);
                    } catch(javax.naming.NamingException ne) {
                        _logger.log(Level.FINE, "Error unpubishing managed bean " +
                               next.getBeanClassName() + " with jndi name " + jndiName, ne);
                    }
                } else {
                    appClientManagedBeans.remove(jndiName);
                }

                next.clearAllBeanInstanceInfo();

            }
        }

    }

    private boolean bundleEligible(BundleDescriptor bundle) {

        boolean eligible = false;

        if( processType.isServer() ) {

            eligible = (bundle instanceof WebBundleDescriptor) ||
                (bundle instanceof EjbBundleDescriptor);

        } else if( processType == ProcessType.ACC ) {
            eligible = (bundle instanceof ApplicationClientDescriptor);
        }

        return eligible;
    }

    public Object createManagedBean(Class managedBeanClass) throws Exception {

        JCDIService jcdiService = habitat.getByContract(JCDIService.class);

        ManagedBeanDescriptor managedBeanDesc = null;

        try {
            BundleDescriptor bundle = getBundle();

            managedBeanDesc = getManagedBeanDescriptor(bundle, managedBeanClass);
        } catch(Exception e) {
            // OK.  Can mean that it's not annotated with @ManagedBean but 299 can handle it.
        }

        return createManagedBean(managedBeanDesc, managedBeanClass);
    }

    public Object createManagedBean(Class managedBeanClass, boolean invokePostConstruct) throws Exception {

        JCDIService jcdiService = habitat.getByContract(JCDIService.class);

        ManagedBeanDescriptor managedBeanDesc = null;

        try {
            BundleDescriptor bundle = getBundle();

            managedBeanDesc = getManagedBeanDescriptor(bundle, managedBeanClass);
        } catch(Exception e) {
            // OK.  Can mean that it's not annotated with @ManagedBean but 299 can handle it.
        }

        return createManagedBean(managedBeanDesc, managedBeanClass, invokePostConstruct);
    }

    /**
     *
     * @param desc can be null if JCDI enabled bundle.
     * @param managedBeanClass
     * @return
     * @throws Exception
     */
    public Object createManagedBean(ManagedBeanDescriptor desc, Class managedBeanClass) throws Exception {

        JCDIService jcdiService = habitat.getByContract(JCDIService.class);

        BundleDescriptor bundleDescriptor = null;

        if( desc == null ) {
            bundleDescriptor = getBundle();
        } else {
            bundleDescriptor = desc.getBundleDescriptor();
        }

        if( bundleDescriptor == null ) {
            throw new IllegalStateException
                ("Class " + managedBeanClass + " is not a valid EE ManagedBean class");
        }

        Object callerObject = null;
        
        if( (jcdiService != null) && jcdiService.isJCDIEnabled(bundleDescriptor)) {

            // Have 299 create, inject, and call PostConstruct on managed bean

            JCDIService.JCDIInjectionContext jcdiContext =
                jcdiService.createManagedObject(managedBeanClass, bundleDescriptor);
            callerObject = jcdiContext.getInstance();

            // Need to keep track of context in order to destroy properly
            Map<Object, JCDIService.JCDIInjectionContext> bundleNonManagedObjs =
                jcdiManagedBeanInstanceMap.get(bundleDescriptor);
            bundleNonManagedObjs.put(callerObject, jcdiContext);

        } else {


            JavaEEInterceptorBuilder interceptorBuilder = (JavaEEInterceptorBuilder)
                desc.getInterceptorBuilder();

            // This is the managed bean class instance
            Object managedBean = managedBeanClass.newInstance();

            InterceptorInvoker interceptorInvoker =
                    interceptorBuilder.createInvoker(managedBean);

            // This is the object passed back to the caller.
            callerObject = interceptorInvoker.getProxy();

            Object[] interceptorInstances = interceptorInvoker.getInterceptorInstances();

            inject(managedBean, desc);

            // Inject interceptor instances
            for(int i = 0; i < interceptorInstances.length; i++) {
                inject(interceptorInstances[i], desc);
            }

            interceptorInvoker.invokePostConstruct();

            desc.addBeanInstanceInfo(managedBean, interceptorInvoker);

        }

        return callerObject;

    }

    /**
     *
     * @param desc can be null if JCDI enabled bundle.
     * @param managedBeanClass
     * @param invokePostConstruct
     * @return
     * @throws Exception
     */
    public Object createManagedBean(ManagedBeanDescriptor desc, Class managedBeanClass,
        boolean invokePostConstruct) throws Exception {

        JCDIService jcdiService = habitat.getByContract(JCDIService.class);

        BundleDescriptor bundleDescriptor = null;

        if( desc == null ) {
            bundleDescriptor = getBundle();
        } else {
            bundleDescriptor = desc.getBundleDescriptor();
        }

        if( bundleDescriptor == null ) {
            throw new IllegalStateException
                ("Class " + managedBeanClass + " is not a valid EE ManagedBean class");
        }

        Object callerObject = null;

        if( (jcdiService != null) && jcdiService.isJCDIEnabled(bundleDescriptor)) {

            // Have 299 create, inject, and call PostConstruct (if desired) on managed bean

            JCDIService.JCDIInjectionContext jcdiContext =
                jcdiService.createManagedObject(managedBeanClass, bundleDescriptor, invokePostConstruct);
            callerObject = jcdiContext.getInstance();
            // Need to keep track of context in order to destroy properly
            Map<Object, JCDIService.JCDIInjectionContext> bundleNonManagedObjs =
                jcdiManagedBeanInstanceMap.get(bundleDescriptor);
            bundleNonManagedObjs.put(callerObject, jcdiContext);

        } else {


            JavaEEInterceptorBuilder interceptorBuilder = (JavaEEInterceptorBuilder)
                desc.getInterceptorBuilder();

            // This is the managed bean class instance
            Object managedBean = managedBeanClass.newInstance();

            InterceptorInvoker interceptorInvoker =
                    interceptorBuilder.createInvoker(managedBean);

            // This is the object passed back to the caller.
            callerObject = interceptorInvoker.getProxy();

            Object[] interceptorInstances = interceptorInvoker.getInterceptorInstances();

            inject(managedBean, desc);

            // Inject interceptor instances
            for(int i = 0; i < interceptorInstances.length; i++) {
                inject(interceptorInstances[i], desc);
            }

            interceptorInvoker.invokePostConstruct();

            desc.addBeanInstanceInfo(managedBean, interceptorInvoker);

        }

        return callerObject;

    }

    public boolean isManagedBean(Object object) {

        JavaEEInterceptorBuilderFactory interceptorBuilderFactory =
                            habitat.getByContract(JavaEEInterceptorBuilderFactory.class);

        return interceptorBuilderFactory.isClientProxy(object);

    }

    private void inject(Object instance, ManagedBeanDescriptor managedBeanDesc)
        throws Exception {
        BundleDescriptor bundle = managedBeanDesc.getBundle();
        if( (bundle instanceof EjbBundleDescriptor) || (bundle instanceof ApplicationClientDescriptor) ) {
            injectionMgr.injectInstance(instance, managedBeanDesc.getGlobalJndiName(), false);
        } else {
            //  Inject instances, but use injection invoker for PostConstruct
            injectionMgr.injectInstance(instance, (JndiNameEnvironment) bundle, false);
        }
    }

    public void destroyManagedBean(Object managedBean)  {
        destroyManagedBean(managedBean, true);
    }

    public void destroyManagedBean(Object managedBean, boolean validate)  {

        BundleDescriptor bundle = getBundle();

        JCDIService jcdiService = habitat.getByContract(JCDIService.class);

        if( (jcdiService != null) && jcdiService.isJCDIEnabled(bundle)) {

            Map<Object, JCDIService.JCDIInjectionContext> bundleNonManagedObjs =
                jcdiManagedBeanInstanceMap.get(bundle);
            JCDIService.JCDIInjectionContext context =
                    bundleNonManagedObjs.remove(managedBean);  

            if( context == null ) {
                if (validate) {
                    throw new IllegalStateException("Unknown JCDI-enabled managed bean " +
                            managedBean + " of class " + managedBean.getClass());
                }
                _logger.log(Level.FINE, "Unknown JCDI-enabled managed bean " +
                            managedBean + " of class " + managedBean.getClass());
                return;
            }

            // Call PreDestroy and cleanup
            context.cleanup(true);

        } else {

            Object managedBeanInstance = null;

            try {

                Field proxyField = managedBean.getClass().getDeclaredField("__ejb31_delegate");

                final Field finalF = proxyField;
                    java.security.AccessController.doPrivileged(
                    new java.security.PrivilegedExceptionAction() {
                        public java.lang.Object run() throws Exception {
                            if( !finalF.isAccessible() ) {
                                finalF.setAccessible(true);
                            }
                            return null;
                        }
                    });

                Proxy proxy = (Proxy) proxyField.get(managedBean);

                InterceptorInvoker invoker = (InterceptorInvoker) Proxy.getInvocationHandler(proxy);

                managedBeanInstance = invoker.getTargetInstance();

            } catch(Exception e) {
                throw new IllegalArgumentException("invalid managed bean " + managedBean, e);
            }

            ManagedBeanDescriptor desc = getManagedBeanDescriptor(bundle, managedBeanInstance.getClass());

            if( desc == null ) {
                throw new IllegalStateException("Could not retrieve managed bean descriptor for " +
                    managedBean + " of class " + managedBean.getClass());
            }

            InterceptorInvoker invoker = (InterceptorInvoker)
                desc.getSupportingInfoForBeanInstance(managedBeanInstance);

            try {
                invoker.invokePreDestroy();
            } catch(Exception e) {
                _logger.log(Level.FINE, "Managed bean " + desc.getBeanClassName() + " PreDestroy", e);
            }

            desc.clearBeanInstanceInfo(managedBeanInstance);
        }                      

    }

    private BundleDescriptor getBundle() {
        ComponentEnvManager compEnvManager = habitat.getByContract(ComponentEnvManager.class);

        JndiNameEnvironment env = compEnvManager.getCurrentJndiNameEnvironment();

        BundleDescriptor bundle = null;

        if( env instanceof BundleDescriptor) {

           bundle = (BundleDescriptor) env;

        } else if( env instanceof EjbDescriptor ) {

           bundle = (BundleDescriptor)
                   ((EjbDescriptor)env).getEjbBundleDescriptor().getModuleDescriptor().getDescriptor();
        }

        if( bundle == null ) {
           throw new IllegalStateException("Invalid context for managed bean creation");
        }

        return bundle;

    }

    private ManagedBeanDescriptor getManagedBeanDescriptor(BundleDescriptor bundle, Class managedBeanClass) {


        ManagedBeanDescriptor managedBeanDesc =
                bundle.getManagedBeanByBeanClass(managedBeanClass.getName());

        if( managedBeanDesc == null ) {
            throw new IllegalArgumentException("No managed bean with name " + managedBeanClass +
                    " found in bundle " + bundle.getModuleName());
        }

        return managedBeanDesc;
    }


    

}

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