1 /**
2 *
3 * Copyright 2003-2004 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: 149344 $ $Date: 2005-01-31 17:07:44 -0800 (Mon, 31 Jan 2005) $
31 */
32 public class MimePartDataSource implements DataSource, MessageAware {
33 private final MimePart part;
34
35 public MimePartDataSource(MimePart part) {
36 this.part = part;
37 }
38
39 public InputStream getInputStream() throws IOException {
40 try {
41 InputStream stream;
42 if (part instanceof MimeMessage) {
43 stream = ((MimeMessage) part).getContentStream();
44 } else if (part instanceof MimeBodyPart) {
45 stream = ((MimeBodyPart) part).getContentStream();
46 } else {
47 throw new MessagingException("Unknown part");
48 }
49 String encoding = part.getEncoding();
50 return encoding == null ? stream : MimeUtility.decode(stream, encoding);
51 } catch (MessagingException e) {
52 throw (IOException) new IOException(e.getMessage()).initCause(e);
53 }
54 }
55
56 public OutputStream getOutputStream() throws IOException {
57 throw new UnknownServiceException();
58 }
59
60 public String getContentType() {
61 try {
62 return part.getContentType();
63 } catch (MessagingException e) {
64 return null;
65 }
66 }
67
68 public String getName() {
69 return "";
70 }
71
72 public synchronized MessageContext getMessageContext() {
73 return new MessageContext(part);
74 }
75 }