1 /**
2 *
3 * Copyright 2003-2006 The Apache Software Foundation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package javax.mail.internet;
19
20 import java.io.IOException;
21 import java.io.InputStream;
22 import java.io.OutputStream;
23 import java.net.UnknownServiceException;
24 import javax.activation.DataSource;
25 import javax.mail.MessageAware;
26 import javax.mail.MessageContext;
27 import javax.mail.MessagingException;
28
29 /**
30 * @version $Rev: 421852 $ $Date: 2006-07-14 03:02:19 -0700 (Fri, 14 Jul 2006) $
31 */
32 public class MimePartDataSource implements DataSource, MessageAware {
33
34 protected MimePart part;
35
36 public MimePartDataSource(MimePart part) {
37 this.part = part;
38 }
39
40 public InputStream getInputStream() throws IOException {
41 try {
42 InputStream stream;
43 if (part instanceof MimeMessage) {
44 stream = ((MimeMessage) part).getContentStream();
45 } else if (part instanceof MimeBodyPart) {
46 stream = ((MimeBodyPart) part).getContentStream();
47 } else {
48 throw new MessagingException("Unknown part");
49 }
50 String encoding = part.getEncoding();
51 return encoding == null ? stream : MimeUtility.decode(stream, encoding);
52 } catch (MessagingException e) {
53 throw (IOException) new IOException(e.getMessage()).initCause(e);
54 }
55 }
56
57 public OutputStream getOutputStream() throws IOException {
58 throw new UnknownServiceException();
59 }
60
61 public String getContentType() {
62 try {
63 return part.getContentType();
64 } catch (MessagingException e) {
65 return null;
66 }
67 }
68
69 public String getName() {
70 return "";
71 }
72
73 public synchronized MessageContext getMessageContext() {
74 return new MessageContext(part);
75 }
76 }