Glassfish example source code file (BootstrapContextImpl.java)

This example Glassfish source code file (BootstrapContextImpl.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

bootstrapcontextimpl, bootstrapcontextimpl, classloader, connectorruntimeexception, initialcontext, initialcontext, io, log, logging, naming, runtimeexception, serializable, string, string, timer, transaction, util, workmanager, workmanager, xaterminator

The Glassfish BootstrapContextImpl.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:
 * "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.connectors;

import com.sun.appserv.connectors.internal.api.ConnectorRuntimeException;
import com.sun.appserv.connectors.internal.api.WorkContextHandler;
import com.sun.logging.LogDomains;

import javax.resource.spi.BootstrapContext;
import javax.resource.spi.XATerminator;
import javax.resource.spi.work.WorkManager;
import javax.resource.spi.work.WorkContext;
import javax.transaction.TransactionSynchronizationRegistry;
import javax.naming.InitialContext;
import java.io.Serializable;
import java.util.Timer;
import java.util.logging.Logger;
import java.util.logging.Level;


/**
 * BootstrapContext implementation.
 *
 * @author Qingqing Ouyang, Binod P.G
 */
public final class BootstrapContextImpl implements BootstrapContext, Serializable {

    private String poolId;
    private WorkManager wm;
    private XATerminator xa;
    private String moduleName;
    private String threadPoolId;
    private ClassLoader rarCL;

    private static final Logger logger =
            LogDomains.getLogger(BootstrapContextImpl.class, LogDomains.RSR_LOGGER);

    /**
     * Constructs a <code>BootstrapContext with default
     * thread pool for work manager.
     *
     * @param moduleName resource-adapter name
     * @throws ConnectorRuntimeException If there is a failure in
     *         retrieving WorkManager.
     */
    public BootstrapContextImpl (String moduleName) throws ConnectorRuntimeException{
        this.moduleName = moduleName;
        initializeWorkManager();
    }

    /**
     * Constructs a <code>BootstrapContext with a specified
     * thread pool for work manager.
     *
     * @param poolId thread-pool-id
     * @param moduleName resource-adapter name
     * @throws ConnectorRuntimeException If there is a failure in
     *         retrieving WorkManager.
     */
    public BootstrapContextImpl (String poolId, String moduleName, ClassLoader rarCL)
                                 throws ConnectorRuntimeException{
        this.threadPoolId = poolId;
        this.moduleName = moduleName;
        this.rarCL = rarCL;
        initializeWorkManager();
    }

    /**
     * Creates a <code>java.util.Timer instance.
     * This can cause a problem, since the timer threads are not actually
     * under appserver control. We should override the timer later.
     *
     * @return <code>java.util.Timer object.
     */
    public Timer createTimer() {
        // set the timer as 'daemon' such that RAs that do not cancel the timer during
        // ra.stop() will not block (eg : server shutdown)
        return new Timer("connectors-runtime-context", true);
    }

    /**
     * {@inheritDoc}
     */
    public boolean isContextSupported(Class<? extends WorkContext> aClass) {
        WorkContextHandler wch = ConnectorRuntime.getRuntime().getWorkContextHandler();
        wch.init(moduleName, rarCL);
        return wch.isContextSupported(true, aClass.getName());
    }

    /**
     * {@inheritDoc}
     */
    public TransactionSynchronizationRegistry getTransactionSynchronizationRegistry() {
        try{
            InitialContext ic = new InitialContext();
            return (TransactionSynchronizationRegistry)ic.lookup("java:comp/TransactionSynchronizationRegistry");
        }catch(Exception e){
            logger.log(Level.WARNING, "tx.sync.registry.lookup.failed", e);
            RuntimeException re = new RuntimeException("Transaction Synchronization Registry Unavailable");
            re.initCause(e);
            throw re;
        }
    }

    /**
     * Retrieves the work manager.
     *
     * @return <code>WorkManager instance.
     * @see com.sun.enterprise.connectors.work.CommonWorkManager
     * @see com.sun.enterprise.connectors.work.WorkManagerFactory
     */
    public WorkManager getWorkManager() {
        initializeWorkManager();
        return wm;
    }

    /**
     * initialize work manager reference
     */
    private void initializeWorkManager() {
        if (wm == null) {
            try {
                wm = ConnectorRuntime.getRuntime().getWorkManagerProxy(threadPoolId, moduleName, rarCL);
            } catch(Exception e) {
           	    logger.log(Level.SEVERE, "workmanager.instantiation_error", e);
            }
        }
    }


    /**
     * Retrieves the <code>XATerminator object.
     */
    public XATerminator getXATerminator() {
        initializeXATerminator();
        return xa;
    }

    /**
     * initializes XATerminator reference
     */
    private void initializeXATerminator() {
        if (xa == null) {                                   
            xa = ConnectorRuntime.getRuntime().getXATerminatorProxy(moduleName);
        }
    }
}