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Java > Open Source Codes > org > columba > ristretto > composer > mimepartrenderers > DefaultMimePartRenderer


1 /* ***** BEGIN LICENSE BLOCK *****
2  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
3  *
4  * The contents of this file are subject to the Mozilla Public License Version
5  * 1.1 (the "License"); you may not use this file except in compliance with
6  * the License. You may obtain a copy of the License at
7  * http://www.mozilla.org/MPL/
8  *
9  * Software distributed under the License is distributed on an "AS IS" basis,
10  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
11  * for the specific language governing rights and limitations under the
12  * License.
13  *
14  * The Original Code is Ristretto Mail API.
15  *
16  * The Initial Developers of the Original Code are
17  * Timo Stich and Frederik Dietz.
18  * Portions created by the Initial Developers are Copyright (C) 2004
19  * All Rights Reserved.
20  *
21  * Contributor(s):
22  *
23  * Alternatively, the contents of this file may be used under the terms of
24  * either the GNU General Public License Version 2 or later (the "GPL"), or
25  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
26  * in which case the provisions of the GPL or the LGPL are applicable instead
27  * of those above. If you wish to allow use of your version of this file only
28  * under the terms of either the GPL or the LGPL, and not to allow others to
29  * use your version of this file under the terms of the MPL, indicate your
30  * decision by deleting the provisions above and replace them with the notice
31  * and other provisions required by the GPL or the LGPL. If you do not delete
32  * the provisions above, a recipient may use your version of this file under
33  * the terms of any one of the MPL, the GPL or the LGPL.
34  *
35  * ***** END LICENSE BLOCK ***** */
36 package org.columba.ristretto.composer.mimepartrenderers;
37
38 import java.io.IOException JavaDoc;
39 import java.io.InputStream JavaDoc;
40
41 import org.columba.ristretto.coder.Base64EncoderInputStream;
42 import org.columba.ristretto.coder.CanonizeFilterInputStream;
43 import org.columba.ristretto.coder.QuotedPrintableEncoderInputStream;
44 import org.columba.ristretto.composer.MimePartRenderer;
45 import org.columba.ristretto.io.SequenceInputStream;
46 import org.columba.ristretto.message.MimeHeader;
47 import org.columba.ristretto.message.MimePart;
48 import org.columba.ristretto.message.StreamableMimePart;
49
50 /**
51  * Default MimePartRenderer.
52  *
53  * <br>
54  * <b>RFC(s):</b> 2046
55  * @author Timo Stich <tstich@users.sourceforge.net>
56  */
57 public class DefaultMimePartRenderer extends MimePartRenderer {
58
59     /**
60      * @see org.columba.ristretto.composer.MimePartRenderer#getRegisterString()
61      */
62     public String JavaDoc getRegisterString() {
63         return null;
64     }
65
66     /**
67      * @see org.columba.ristretto.composer.MimePartRenderer#render(org.columba.ristretto.message.MimePart)
68      */
69     public InputStream JavaDoc render(MimePart part) throws IOException JavaDoc {
70         MimeHeader header = part.getHeader();
71         int encoding = header.getContentTransferEncoding();
72         InputStream JavaDoc body = ((StreamableMimePart) part).getInputStream();
73
74         switch (encoding) {
75             case MimeHeader.BASE64 :
76                 {
77                     body = new Base64EncoderInputStream(body);
78                     break;
79                 }
80
81             case MimeHeader.QUOTED_PRINTABLE :
82                 {
83                     body = new QuotedPrintableEncoderInputStream(body);
84                     break;
85                 }
86             default :
87                 {
88                     // make sure that lineendings are renderer correctly
89 body = new CanonizeFilterInputStream(body);
90                 }
91         }
92
93         return new SequenceInputStream(header.getInputStream(), body);
94     }
95
96 }
97
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