/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

package com.sun.xml.internal.messaging.saaj.soap;

import java.io.*;

import java.awt.datatransfer.DataFlavor;

import javax.activation.*;

import com.sun.xml.internal.messaging.saaj.packaging.mime.internet.MimeMultipart;

import com.sun.xml.internal.messaging.saaj.packaging.mime.internet.ContentType;

import com.sun.xml.internal.messaging.saaj.util.ByteOutputStream;

public class MultipartDataContentHandler implements DataContentHandler {

    private ActivationDataFlavor myDF = new ActivationDataFlavor(

            com.sun.xml.internal.messaging.saaj.packaging.mime.internet.MimeMultipart.class,

            "multipart/mixed",

            "Multipart");

    /**

     * Return the DataFlavors for this <code>DataContentHandler</code>.

     *

     * @return The DataFlavors

     */

    public DataFlavor[] getTransferDataFlavors() { // throws Exception;

        return new DataFlavor[] { myDF };

    }

    /**

     * Return the Transfer Data of type DataFlavor from InputStream.

     *

     * @param df The DataFlavor

     * @return String object

     */

    public Object getTransferData(DataFlavor df, DataSource ds) {

        // use myDF.equals to be sure to get ActivationDataFlavor.equals,

        // which properly ignores Content-Type parameters in comparison

        if (myDF.equals(df))

            return getContent(ds);

        else

            return null;

    }

    /**

     * Return the content.

     */

    public Object getContent(DataSource ds) {

        try {

            return new MimeMultipart(

                ds, new ContentType(ds.getContentType()));

        } catch (Exception e) {

            return null;

        }

    }

    /**

     * Write the object to the output stream, using the specific MIME type.

     */

    public void writeTo(Object obj, String mimeType, OutputStream os)

                        throws IOException {

        if (obj instanceof MimeMultipart) {

            try {

                //TODO: temporarily allow only ByteOutputStream

                // Need to add writeTo(OutputStream) on MimeMultipart

                ByteOutputStream baos = null;

                if (os instanceof ByteOutputStream) {

                    baos = (ByteOutputStream)os;

                } else {

                    throw new IOException("Input Stream expected to be a com.sun.xml.internal.messaging.saaj.util.ByteOutputStream, but found " +

                        os.getClass().getName());

                }

                ((MimeMultipart)obj).writeTo(baos);

            } catch (Exception e) {

                throw new IOException(e.toString());

            }

        }

    }

}