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Glassfish example source code file (ContainerUtilImpl.java)

This example Glassfish source code file (ContainerUtilImpl.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

callflowagent, componentenvmanager, containerutil, containerutil, containerutilimpl, entitymanager, inject, inject, invocationmanager, javaeecontainer, javaeecontainer, predestroy, timer, timer, util

The Glassfish ContainerUtilImpl.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2008-2010 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:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

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

import com.sun.enterprise.container.common.spi.util.CallFlowAgent;
import com.sun.enterprise.container.common.spi.JavaEEContainer;
import com.sun.enterprise.container.common.spi.util.ComponentEnvManager;
import com.sun.enterprise.container.common.spi.util.ContainerUtil;
import org.glassfish.api.invocation.ComponentInvocation;
import org.glassfish.api.invocation.InvocationManager;
import org.jvnet.hk2.annotations.Inject;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.component.PreDestroy;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import java.util.Timer;

@Service
public class ContainerUtilImpl
    implements ContainerUtil, PreDestroy {

    @Inject
    private InvocationManager invMgr;

    @Inject
    private ComponentEnvManager compEnvMgr;

    @Inject
    private CallFlowAgent callFlowAgent;
    
    private static Timer _timer = new Timer("container-util",true);

    private static ContainerUtil _util;

    public ContainerUtilImpl() {
        _initializeContainerUtilImpl(this);
    }

    private static void _initializeContainerUtilImpl(ContainerUtilImpl me) {
        _util = me;
    }

    public static ContainerUtil getContainerUtil() {
        return _util;
    }

    public InvocationManager getInvocationManager() {
        return invMgr;
    }

    public ComponentEnvManager getComponentEnvManager() {
        return compEnvMgr;
    }

    public EntityManager lookupExtendedEntityManager(EntityManagerFactory emf) {
        EntityManager em = null;

        ComponentInvocation inv = invMgr.getCurrentInvocation();
        if( (inv != null) &&
            (inv.getInvocationType() == ComponentInvocation.ComponentInvocationType.EJB_INVOCATION )) {
            Object obj = inv.getContainer();
            if (obj instanceof JavaEEContainer) {
                em = ((JavaEEContainer) obj).lookupExtendedEntityManager(emf);
            }
        }

        return em;
    }

    public CallFlowAgent getCallFlowAgent() {
        return callFlowAgent;
    }
    public Timer getTimer() {
        return _timer;
    }

    public void scheduleTask(Runnable runnable) {
        //TODO: Get hold of a worker threadpool and run this runnable
        //TODO: Should we take the ContextClassLoader as parameter
    }

    /**
     * The component is about to be removed from commission
     */
    public void preDestroy() {
        _timer.cancel();
    }
}

Other Glassfish examples (source code examples)

Here is a short list of links related to this Glassfish ContainerUtilImpl.java source code file:

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