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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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 * Copyright 1997-2007 Sun Microsystems, Inc. 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.html
 * or glassfish/bootstrap/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 glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
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package com.sun.ejb.base.io;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

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

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

public class IOUtils {

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

    private static J2EEObjectStreamFactory _streamFactory;

    public static final void setJ2EEObjectStreamFactory(
            J2EEObjectStreamFactory  factory)
    {
        _streamFactory = factory;
    }
    
    public static ObjectInputStream createObjectInputStream(
	    final InputStream is, final boolean resolveObject,
	    final ClassLoader loader)
	throws Exception
    {
	return _streamFactory.createObjectInputStream(is, resolveObject, loader);
    }

    public static ObjectOutputStream createObjectOutputStream(
	    final OutputStream os, final boolean replaceObject,
	    final NonSerializableObjectHandler handler)
	throws IOException
    {
	return _streamFactory.createObjectOutputStream(os, replaceObject,
		handler);
    }

    public static final byte[] serializeObject(Object obj, boolean replaceObject)
	throws java.io.NotSerializableException, java.io.IOException
    {
        byte[] data = null;
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        ObjectOutputStream oos = null;
        try {
            oos = _streamFactory.createObjectOutputStream(
                bos, replaceObject,
                new NonSerializableObjectHandler() {
                    public Object handleNonSerializableObject(Object obj) {
                        return obj;
                    }
                });

            oos.writeObject(obj);
            oos.flush();
            data = bos.toByteArray();
        } catch (java.io.NotSerializableException notSerEx) {
            throw notSerEx;
        } catch (Exception th) {
            IOException ioEx = new IOException(th.toString());
            ioEx.initCause(th);
            throw ioEx;
        } finally {
            if (oos != null) {
                try { oos.close(); } catch (Exception ex) {}
            }
            try { bos.close(); } catch (Exception ex) {}
        }

	return data;
    }

    public static final Object deserializeObject(byte[] data, boolean resolveObject,
            ClassLoader classLoader)
	throws Exception
    {
        Object obj = null;
	ByteArrayInputStream bis = null;
	ObjectInputStream ois = null;
        try {
            bis = new ByteArrayInputStream(data);
            ois = _streamFactory.createObjectInputStream(bis, resolveObject,
		    classLoader);
            obj = ois.readObject();
        } catch (Exception ex) {
            _ejbLogger.log(Level.FINE, "Error during deserialization", ex);
            throw ex;
        } finally {
            try { ois.close(); } catch (Exception ex) {
                _ejbLogger.log(Level.FINEST, "Error during ois.close()", ex);
            }
            try { bis.close(); } catch (Exception ex) {
                _ejbLogger.log(Level.FINEST, "Error during bis.close()", ex);
            }
	}
        return obj;
    }

}