KickJava   Java API By Example, From Geeks To Geeks.

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


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 import java.nio.charset.Charset JavaDoc;
41
42 import org.columba.ristretto.coder.Base64EncoderInputStream;
43 import org.columba.ristretto.coder.CanonizeFilterInputStream;
44 import org.columba.ristretto.coder.CharsetEncoderInputStream;
45 import org.columba.ristretto.coder.QuotedPrintableEncoderInputStream;
46 import org.columba.ristretto.composer.MimePartRenderer;
47 import org.columba.ristretto.io.SequenceInputStream;
48 import org.columba.ristretto.message.MimeHeader;
49 import org.columba.ristretto.message.MimePart;
50 import org.columba.ristretto.message.StreamableMimePart;
51
52 /**
53  * MIME text renderer.
54  *
55  * <br>
56  * <b>RFC(s):</b> 2046
57  * @author Timo Stich <tstich@users.sourceforge.net>
58  */
59 public class TextpartRenderer extends MimePartRenderer {
60
61    /**
62     * @see org.columba.ristretto.composer.MimePartRenderer#getRegisterString()
63     */
64     public String JavaDoc getRegisterString() {
65         return "text";
66     }
67
68     /**
69      * @see org.columba.ristretto.composer.MimePartRenderer#render(org.columba.ristretto.message.MimePart)
70      */
71     public InputStream JavaDoc render(MimePart part) throws IOException JavaDoc {
72         MimeHeader header = part.getHeader();
73         int encoding = header.getContentTransferEncoding();
74         Charset JavaDoc charset = header.getCharset();
75
76         InputStream JavaDoc body =
77             new CharsetEncoderInputStream(
78                 new CanonizeFilterInputStream(
79                     ((StreamableMimePart) part).getInputStream()),
80                 charset);
81
82         switch (encoding) {
83             case MimeHeader.BASE64 :
84                 {
85                     body = new Base64EncoderInputStream(body);
86                     break;
87                 }
88
89             case MimeHeader.QUOTED_PRINTABLE :
90                 {
91                     body = new QuotedPrintableEncoderInputStream(body);
92                     break;
93                 }
94             default :
95                 {
96                     // make sure that lineendings are renderer correctly
97 body = new CanonizeFilterInputStream(body);
98                 }
99         }
100
101         return new SequenceInputStream(header.getInputStream(), body);
102     }
103
104 }
105
Popular Tags