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Glassfish example source code file (J2EEObjectStreamFactoryImpl.java)

This example Glassfish source code file (J2EEObjectStreamFactoryImpl.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

ejbobjectinputstream, ejbobjectinputstream, ejbobjectoutputstream, exception, exception, io, ioexception, ioexception, j2eeobjectstreamfactory, j2eeobjectstreamfactoryimpl, objectinputstream, objectinputstream, objectoutputstream, privilegedactionexception, privilegedexceptionaction, security

The Glassfish J2EEObjectStreamFactoryImpl.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.ejb.base.io;

import java.io.*;
import java.security.*;

import com.sun.ejb.spi.io.J2EEObjectStreamFactory;

/**
 * A Factory class for creating EJBObject input/output Stream
 *
 * @author Mahesh Kannan
 */
public class J2EEObjectStreamFactoryImpl
    implements J2EEObjectStreamFactory
{

    public J2EEObjectStreamFactoryImpl() {
    }

    /**
     *
     * Obtain an ObjectOutputStream that allows serialization
     *  of a graph of objects. The objects can be plain Serializable objects
     *  or can be converted into Serializable objects using
     *  the handler
     *
     *@throws IOException when the serialziation fails
     *@return an ObjectOutputStream that can be used to serialize objects
     */
    public ObjectOutputStream createObjectOutputStream(
            final OutputStream os,
            final boolean replaceObject)
        throws IOException
    {
        // Need privileged block here because EJBObjectOutputStream
        // does enableReplaceObject
        ObjectOutputStream oos = null;
        if(System.getSecurityManager() == null) {
            oos = new EJBObjectOutputStream(os, replaceObject);
        } else {
            try {
                oos = (ObjectOutputStream)AccessController.doPrivileged(
                        new PrivilegedExceptionAction() {
                    public java.lang.Object run()
                    throws Exception {
                        return new EJBObjectOutputStream(
                                os, replaceObject);
                    }
                });
            } catch ( PrivilegedActionException ex ) {
                throw (IOException) ex.getException();
            }
        }
        return oos; 
    }

    /**
     *
     * Obtain an ObjectInputStream that allows de-serialization
     *  of a graph of objects.
     *
     *@throws IOException when the de-serialziation fails
     *@return an ObjectInputStream that can be used to deserialize objects
     */
	public ObjectInputStream createObjectInputStream(
            final InputStream is,
            final boolean resolveObject,
            final ClassLoader appClassLoader)
        throws Exception
    {
        ObjectInputStream ois = null;
        if ( appClassLoader != null ) {
            // Need privileged block here because EJBObjectInputStream
            // does enableResolveObject
            if(System.getSecurityManager() == null) {
                ois = new EJBObjectInputStream(is, appClassLoader, resolveObject);
            } else {
                try {
                    ois = (ObjectInputStream)AccessController.doPrivileged(
                            new PrivilegedExceptionAction() {
                        public java.lang.Object run()
                        throws Exception {
                            return new EJBObjectInputStream(
                                    is, appClassLoader, resolveObject);
                        }
                    });
                } catch ( PrivilegedActionException ex ) {
                    throw (IOException) ex.getException();
                }
            }
        } else {
            ois = new ObjectInputStream(is);
        }

        return ois;
    }

}

Other Glassfish examples (source code examples)

Here is a short list of links related to this Glassfish J2EEObjectStreamFactoryImpl.java source code file:

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