1 /**
2 * This file is part of the equanda project.
3 *
4 * The contents of this file are subject to the Mozilla Public License Version 1.1 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at http://www.mozilla.org/MPL/
7 *
8 * Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF
9 * ANY KIND, either express or implied. See the License for the specific language governing rights and
10 * limitations under the License.
11 *
12 * Alternatively, the contents of this file may be used under the terms of
13 * either the GNU General Public License Version 2 or later (the "GPL"), or
14 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
15 * in which case the provisions of the GPL or the LGPL are applicable instead
16 * of those above. If you wish to allow use of your version of this file only
17 * under the terms of either the GPL or the LGPL, and not to allow others to
18 * use your version of this file under the terms of the MPL, indicate your
19 * decision by deleting the provisions above and replace them with the notice
20 * and other provisions required by the GPL or the LGPL. If you do not delete
21 * the provisions above, a recipient may use your version of this file under
22 * the terms of any one of the MPL, the GPL or the LGPL.
23 */
24
25 package org.equanda.tapestry5.data;
26
27 import org.apache.tapestry5.StreamResponse;
28 import org.apache.tapestry5.services.Response;
29
30 import java.io.ByteArrayInputStream;
31 import java.io.IOException;
32 import java.io.InputStream;
33
34 /**
35 * Container for a (string) message
36 *
37 * @author <a href="mailto:joachim@progs.be">Joachim Van der Auwera</a>
38 */
39 public class BinaryStreamResponse
40 implements StreamResponse
41 {
42 private String mimeType;
43 private String fileName;
44 private byte[] data;
45
46 public BinaryStreamResponse( byte[] data, String mime )
47 {
48 this.data = data;
49 this.mimeType = mime;
50 }
51
52 public BinaryStreamResponse( byte[] data, String mime, String fileName )
53 {
54 this.data = data;
55 this.mimeType = mime;
56 this.fileName = fileName;
57 }
58
59 public String getContentType()
60 {
61 return mimeType;
62 }
63
64 public InputStream getStream()
65 throws IOException
66 {
67 return new ByteArrayInputStream( data );
68 }
69
70 public void prepareResponse( Response response )
71 {
72 if ( null != fileName ) response.setHeader( "Content-Disposition", "attachment; filename=" + fileName );
73 if ( null != mimeType ) response.setHeader( "Content-Type", mimeType );
74 response.setHeader( "Expires", "0" );
75 response.setHeader( "Cache-Control", "must-revalidate, post-check=0, pre-check=0" );
76 response.setHeader( "Pragma", "public" );
77 }
78 }