1 //
2 // ========================================================================
3 // Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
4 // ------------------------------------------------------------------------
5 // All rights reserved. This program and the accompanying materials
6 // are made available under the terms of the Eclipse Public License v1.0
7 // and Apache License v2.0 which accompanies this distribution.
8 //
9 // The Eclipse Public License is available at
10 // http://www.eclipse.org/legal/epl-v10.html
11 //
12 // The Apache License v2.0 is available at
13 // http://www.opensource.org/licenses/apache2.0.php
14 //
15 // You may elect to redistribute this code under either of these licenses.
16 // ========================================================================
17 //
18
19 package org.eclipse.jetty.util;
20
21 import java.io.FilterWriter;
22 import java.io.IOException;
23 import java.io.Writer;
24
25
26 /* ================================================================ */
27 /** Handle a multipart MIME response.
28 *
29 *
30 *
31 */
32 public class MultiPartWriter extends FilterWriter
33 {
34 /* ------------------------------------------------------------ */
35 private final static String __CRLF="\015\012";
36 private final static String __DASHDASH="--";
37
38 public static String MULTIPART_MIXED=MultiPartOutputStream.MULTIPART_MIXED;
39 public static String MULTIPART_X_MIXED_REPLACE=MultiPartOutputStream.MULTIPART_X_MIXED_REPLACE;
40
41 /* ------------------------------------------------------------ */
42 private String boundary;
43
44 /* ------------------------------------------------------------ */
45 private boolean inPart=false;
46
47 /* ------------------------------------------------------------ */
48 public MultiPartWriter(Writer out)
49 throws IOException
50 {
51 super(out);
52 boundary = "jetty"+System.identityHashCode(this)+
53 Long.toString(System.currentTimeMillis(),36);
54
55 inPart=false;
56 }
57
58 /* ------------------------------------------------------------ */
59 /** End the current part.
60 * @exception IOException IOException
61 */
62 @Override
63 public void close()
64 throws IOException
65 {
66 if (inPart)
67 out.write(__CRLF);
68 out.write(__DASHDASH);
69 out.write(boundary);
70 out.write(__DASHDASH);
71 out.write(__CRLF);
72 inPart=false;
73 super.close();
74 }
75
76 /* ------------------------------------------------------------ */
77 public String getBoundary()
78 {
79 return boundary;
80 }
81
82 /* ------------------------------------------------------------ */
83 /** Start creation of the next Content.
84 */
85 public void startPart(String contentType)
86 throws IOException
87 {
88 if (inPart)
89 out.write(__CRLF);
90 out.write(__DASHDASH);
91 out.write(boundary);
92 out.write(__CRLF);
93 out.write("Content-Type: ");
94 out.write(contentType);
95 out.write(__CRLF);
96 out.write(__CRLF);
97 inPart=true;
98 }
99
100 /* ------------------------------------------------------------ */
101 /** end creation of the next Content.
102 */
103 public void endPart()
104 throws IOException
105 {
106 if (inPart)
107 out.write(__CRLF);
108 inPart=false;
109 }
110
111 /* ------------------------------------------------------------ */
112 /** Start creation of the next Content.
113 */
114 public void startPart(String contentType, String[] headers)
115 throws IOException
116 {
117 if (inPart)
118 out.write(__CRLF);
119 out.write(__DASHDASH);
120 out.write(boundary);
121 out.write(__CRLF);
122 out.write("Content-Type: ");
123 out.write(contentType);
124 out.write(__CRLF);
125 for (int i=0;headers!=null && i<headers.length;i++)
126 {
127 out.write(headers[i]);
128 out.write(__CRLF);
129 }
130 out.write(__CRLF);
131 inPart=true;
132 }
133
134 }
135
136
137
138