1 /*
2 * $Source: /usr/cvsroot/melati/melati/src/main/java/org/melati/template/webmacro/MelatiBufferedFastWriter.java,v $
3 * $Revision: 1.10 $
4 *
5 * Copyright (C) 2000 Tim Joyce
6 *
7 * Part of Melati (http://melati.org), a framework for the rapid
8 * development of clean, maintainable web applications.
9 *
10 * Melati is free software; Permission is granted to copy, distribute
11 * and/or modify this software under the terms either:
12 *
13 * a) the GNU General Public License as published by the Free Software
14 * Foundation; either version 2 of the License, or (at your option)
15 * any later version,
16 *
17 * or
18 *
19 * b) any version of the Melati Software License, as published
20 * at http://melati.org
21 *
22 * You should have received a copy of the GNU General Public License and
23 * the Melati Software License along with this program;
24 * if not, write to the Free Software Foundation, Inc.,
25 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the
26 * GNU General Public License and visit http://melati.org to obtain the
27 * Melati Software License.
28 *
29 * Feel free to contact the Developers of Melati (http://melati.org),
30 * if you would like to work out a different arrangement than the options
31 * outlined here. It is our intention to allow Melati to be used by as
32 * wide an audience as possible.
33 *
34 * This program is distributed in the hope that it will be useful,
35 * but WITHOUT ANY WARRANTY; without even the implied warranty of
36 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
37 * GNU General Public License for more details.
38 *
39 * Contact details for copyright holder:
40 *
41 * Tim Joyce <timj@paneris.org>
42 */
43
44 package org.melati.template.webmacro;
45
46 import java.io.ByteArrayOutputStream;
47 import java.io.IOException;
48 import java.io.OutputStream;
49
50 import javax.servlet.http.HttpServletResponse;
51
52 import org.webmacro.Broker;
53
54 /**
55 * Writes to a buffered output object.
56 */
57
58 public class MelatiBufferedFastWriter extends MelatiFastWriter {
59
60 private OutputStream underlying;
61 private ByteArrayOutputStream buffer;
62
63 /**
64 * Constructor.
65 */
66 public MelatiBufferedFastWriter(Broker broker, OutputStream output,
67 String encoding)
68 throws IOException {
69 super(broker, new ByteArrayOutputStream(), encoding);
70 buffer = (ByteArrayOutputStream)outputStream;
71 underlying = output;
72 }
73
74 /**
75 * Constructor.
76 */
77 public MelatiBufferedFastWriter(Broker broker, HttpServletResponse response)
78 throws IOException {
79 this(broker, response.getOutputStream(), response.getCharacterEncoding());
80 }
81
82
83 /*
84 public MelatiBufferedFastWriter(OutputStream output, String encoding)
85 throws IOException {
86 super(new ByteArrayOutputStream(), encoding);
87 buffer = (ByteArrayOutputStream)outputStream;
88 underlying = output;
89 }
90
91 public MelatiBufferedFastWriter(HttpServletResponse response)
92 throws IOException {
93 this(response.getOutputStream(), response.getCharacterEncoding());
94 }
95
96 public MelatiBufferedFastWriter(String encoding) throws IOException {
97 this(new ByteArrayOutputStream(), encoding);
98 }
99 */
100 public void close() throws IOException {
101 super.close();
102 buffer.writeTo(underlying);
103 buffer.close();
104 underlying.flush();
105 underlying.close();
106 }
107
108 public void flush() throws IOException {
109 out.flush();
110 buffer.writeTo(underlying);
111 buffer.reset();
112 underlying.flush();
113 }
114
115 public void reset() throws IOException {
116 out.flush();
117 buffer.reset();
118 }
119
120 }