1 // ========================================================================
2 // Copyright (c) 1996-2009 Mort Bay Consulting Pty. Ltd.
3 // ------------------------------------------------------------------------
4 // All rights reserved. This program and the accompanying materials
5 // are made available under the terms of the Eclipse Public License v1.0
6 // and Apache License v2.0 which accompanies this distribution.
7 // The Eclipse Public License is available at
8 // http://www.eclipse.org/legal/epl-v10.html
9 // The Apache License v2.0 is available at
10 // http://www.opensource.org/licenses/apache2.0.php
11 // You may elect to redistribute this code under either of these licenses.
12 // ========================================================================
13
14 package org.eclipse.jetty.util;
15
16 import java.io.FilterWriter;
17 import java.io.IOException;
18 import java.io.Writer;
19
20
21 /* ================================================================ */
22 /** Handle a multipart MIME response.
23 *
24 *
25 *
26 */
27 public class MultiPartWriter extends FilterWriter
28 {
29 /* ------------------------------------------------------------ */
30 private final static String __CRLF="\015\012";
31 private final static String __DASHDASH="--";
32
33 public static String MULTIPART_MIXED=MultiPartOutputStream.MULTIPART_MIXED;
34 public static String MULTIPART_X_MIXED_REPLACE=MultiPartOutputStream.MULTIPART_X_MIXED_REPLACE;
35
36 /* ------------------------------------------------------------ */
37 private String boundary;
38
39 /* ------------------------------------------------------------ */
40 private boolean inPart=false;
41
42 /* ------------------------------------------------------------ */
43 public MultiPartWriter(Writer out)
44 throws IOException
45 {
46 super(out);
47 boundary = "jetty"+System.identityHashCode(this)+
48 Long.toString(System.currentTimeMillis(),36);
49
50 inPart=false;
51 }
52
53 /* ------------------------------------------------------------ */
54 /** End the current part.
55 * @exception IOException IOException
56 */
57 @Override
58 public void close()
59 throws IOException
60 {
61 if (inPart)
62 out.write(__CRLF);
63 out.write(__DASHDASH);
64 out.write(boundary);
65 out.write(__DASHDASH);
66 out.write(__CRLF);
67 inPart=false;
68 super.close();
69 }
70
71 /* ------------------------------------------------------------ */
72 public String getBoundary()
73 {
74 return boundary;
75 }
76
77 /* ------------------------------------------------------------ */
78 /** Start creation of the next Content.
79 */
80 public void startPart(String contentType)
81 throws IOException
82 {
83 if (inPart)
84 out.write(__CRLF);
85 out.write(__DASHDASH);
86 out.write(boundary);
87 out.write(__CRLF);
88 out.write("Content-Type: ");
89 out.write(contentType);
90 out.write(__CRLF);
91 out.write(__CRLF);
92 inPart=true;
93 }
94
95 /* ------------------------------------------------------------ */
96 /** end creation of the next Content.
97 */
98 public void endPart()
99 throws IOException
100 {
101 if (inPart)
102 out.write(__CRLF);
103 inPart=false;
104 }
105
106 /* ------------------------------------------------------------ */
107 /** Start creation of the next Content.
108 */
109 public void startPart(String contentType, String[] headers)
110 throws IOException
111 {
112 if (inPart)
113 out.write(__CRLF);
114 out.write(__DASHDASH);
115 out.write(boundary);
116 out.write(__CRLF);
117 out.write("Content-Type: ");
118 out.write(contentType);
119 out.write(__CRLF);
120 for (int i=0;headers!=null && i<headers.length;i++)
121 {
122 out.write(headers[i]);
123 out.write(__CRLF);
124 }
125 out.write(__CRLF);
126 inPart=true;
127 }
128
129 }
130
131
132
133