multipart_mixed.java

java Email you can use it to send email to others

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * 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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 * 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
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/*
 * @(#)multipart_mixed.java	1.12 07/05/04
 */
package com.sun.mail.handlers;

import java.io.*;
import java.awt.datatransfer.DataFlavor;
import javax.activation.*;
import javax.mail.MessagingException;
import javax.mail.internet.*;


public class multipart_mixed implements DataContentHandler {
    private ActivationDataFlavor myDF = new ActivationDataFlavor(
	    javax.mail.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
     * @param ins The InputStream corresponding to the data
     * @return String object
     */
    public Object getTransferData(DataFlavor df, DataSource ds)
				throws IOException {
	// 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) throws IOException {
	try {
	    return new MimeMultipart(ds); 
	} catch (MessagingException e) {
	    IOException ioex =
		new IOException("Exception while constructing MimeMultipart");
	    ioex.initCause(e);
	    throw ioex;
	}
    }
    
    /**
     * 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 {
		((MimeMultipart)obj).writeTo(os);
	    } catch (MessagingException e) {
		throw new IOException(e.toString());
	    }
	}
    }
}