1 /*
2 * $Source: /usr/cvsroot/melati/melati/src/main/java/org/melati/template/webmacro/MelatiFastWriter.java,v $
3 * $Revision: 1.17 $
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.IOException;
47 import java.io.OutputStream;
48
49 import javax.servlet.http.HttpServletResponse;
50
51 import org.melati.template.TemplateEngine;
52 import org.melati.util.MelatiWriter;
53 import org.webmacro.Broker;
54
55 /**
56 * Writes to an output object.
57 */
58
59 public class MelatiFastWriter extends MelatiWriter
60 implements MelatiWebmacroWriter {
61
62 protected OutputStream outputStream;
63
64 /**
65 * Constructor.
66 */
67 public MelatiFastWriter(Broker broker, HttpServletResponse response)
68 throws IOException {
69 this(broker, response.getOutputStream(), response.getCharacterEncoding());
70 }
71 /*
72 public MelatiFastWriter(HttpServletResponse response)
73 throws IOException {
74 this(response.getOutputStream(), response.getCharacterEncoding());
75 }
76 */
77 /**
78 * Constructor.
79 */
80 public MelatiFastWriter(Broker broker, OutputStream output, String encoding)
81 throws IOException {
82 // need to make this accessable to subclasses
83 outputStream = output;
84 out = FastWriter.getInstance(broker, output, encoding);
85 }
86 /*
87 public MelatiFastWriter(OutputStream output, String encoding)
88 throws IOException {
89 // need to make this accessable to subcalsses
90 outputStream = output;
91 out = FastWriter.getInstance(output, encoding);
92 }
93 */
94 /**
95 * @return the peer
96 */
97 public FastWriter getPeer() {
98 // as we can write to the underlying peer, the Flusher may not get started
99 // so we should start it here
100 startFlushing();
101 return (FastWriter)out;
102 }
103
104 /**
105 * Return a <code>FastWriter</code> that can be used for a while instead.
106 *
107 * @see #stopUsingFastWriter(FastWriter)
108 */
109 public FastWriter getFastWriter(TemplateEngine engine) {
110 return getPeer();
111 }
112
113 /**
114 * Returns the underlying <code>OutputStream</code> that can be used.
115 *
116 * @see #stopUsingFastWriter(FastWriter)
117 */
118 public OutputStream getOutputStream() {
119 return outputStream;
120 }
121
122 /**
123 * Stop using the given <code>FastWriter</code> obtained from
124 * this object.
125 *
126 * @see #getFastWriter(TemplateEngine)
127 */
128 public void stopUsingFastWriter(FastWriter fw) throws IOException {
129 // Do nothing
130 }
131
132
133 }