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 * 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.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
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 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
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package com.sun.ejb.base.io;

import java.io.*;
import java.security.*;
import java.rmi.*;
import javax.ejb.*;
import javax.naming.*;

import java.util.logging.*;
import com.sun.logging.*;

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

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

    private static final Logger _ejbLogger =
       LogDomains.getLogger(LogDomains.EJB_LOGGER);

    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,
            final NonSerializableObjectHandler handler)
        throws IOException
    {
        // Need privileged block here because EJBObjectOutputStream
        // does enableReplaceObject
        ObjectOutputStream oos = null;
        if(System.getSecurityManager() == null) {
            oos = new EJBObjectOutputStream(os, replaceObject, handler);
        } else {
            try {
                oos = (ObjectOutputStream)AccessController.doPrivileged(
                        new PrivilegedExceptionAction() {
                    public java.lang.Object run()
                    throws Exception {
                        return new EJBObjectOutputStream(
                                os, replaceObject, handler);
                    }
                });
            } 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 loader)
        throws Exception
    {
        ObjectInputStream ois = null;
        if ( loader != null ) {
            // Need privileged block here because EJBObjectInputStream
            // does enableResolveObject
            if(System.getSecurityManager() == null) {
                ois = new EJBObjectInputStream(is, loader, resolveObject);
            } else {
                try {
                    ois = (ObjectInputStream)AccessController.doPrivileged(
                            new PrivilegedExceptionAction() {
                        public java.lang.Object run()
                        throws Exception {
                            return new EJBObjectInputStream(
                                    is, loader, resolveObject);
                        }
                    });
                } catch ( PrivilegedActionException ex ) {
                    throw (IOException) ex.getException();
                }
            }
        } else {
            ois = new ObjectInputStream(is);
        }

        return ois;
    }

}
