blob: 12bf46b6d73af96b0e19c0ebe76df573c6528736 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
// ========================================================================
// Copyright (c) 2008-2009 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
package org.eclipse.jetty.server;
import java.io.IOException;
import java.io.Writer;
import javax.servlet.ServletOutputStream;
import org.eclipse.jetty.http.AbstractGenerator;
import org.eclipse.jetty.http.Generator;
import org.eclipse.jetty.io.Buffer;
import org.eclipse.jetty.io.ByteArrayBuffer;
import org.eclipse.jetty.io.EofException;
import org.eclipse.jetty.util.ByteArrayOutputStream2;
/** Output.
*
* <p>
* Implements {@link javax.servlet.ServletOutputStream} from the <code>javax.servlet</code> package.
* </p>
* A {@link ServletOutputStream} implementation that writes content
* to a {@link AbstractGenerator}. The class is designed to be reused
* and can be reopened after a close.
*/
public class HttpOutput extends ServletOutputStream
{
protected final AbstractHttpConnection _connection;
protected final AbstractGenerator _generator;
private boolean _closed;
// These are held here for reuse by Writer
String _characterEncoding;
Writer _converter;
char[] _chars;
ByteArrayOutputStream2 _bytes;
/* ------------------------------------------------------------ */
public HttpOutput(AbstractHttpConnection connection)
{
_connection=connection;
_generator=(AbstractGenerator)connection.getGenerator();
}
/* ------------------------------------------------------------ */
public int getMaxIdleTime()
{
return _connection.getMaxIdleTime();
}
/* ------------------------------------------------------------ */
public boolean isWritten()
{
return _generator.getContentWritten()>0;
}
/* ------------------------------------------------------------ */
/*
* @see java.io.OutputStream#close()
*/
@Override
public void close() throws IOException
{
_closed=true;
}
/* ------------------------------------------------------------ */
public boolean isClosed()
{
return _closed;
}
/* ------------------------------------------------------------ */
public void reopen()
{
_closed=false;
}
/* ------------------------------------------------------------ */
@Override
public void flush() throws IOException
{
_generator.flush(getMaxIdleTime());
}
/* ------------------------------------------------------------ */
@Override
public void write(byte[] b, int off, int len) throws IOException
{
write(new ByteArrayBuffer(b,off,len));
}
/* ------------------------------------------------------------ */
/*
* @see java.io.OutputStream#write(byte[])
*/
@Override
public void write(byte[] b) throws IOException
{
write(new ByteArrayBuffer(b));
}
/* ------------------------------------------------------------ */
/*
* @see java.io.OutputStream#write(int)
*/
@Override
public void write(int b) throws IOException
{
if (_closed)
throw new IOException("Closed");
if (!_generator.isOpen())
throw new EofException();
// Block until we can add _content.
while (_generator.isBufferFull())
{
_generator.blockForOutput(getMaxIdleTime());
if (_closed)
throw new IOException("Closed");
if (!_generator.isOpen())
throw new EofException();
}
// Add the _content
if (_generator.addContent((byte)b))
// Buffers are full so commit.
_connection.commitResponse(Generator.MORE);
if (_generator.isAllContentWritten())
{
flush();
close();
}
}
/* ------------------------------------------------------------ */
private void write(Buffer buffer) throws IOException
{
if (_closed)
throw new IOException("Closed");
if (!_generator.isOpen())
throw new EofException();
// Block until we can add _content.
while (_generator.isBufferFull())
{
_generator.blockForOutput(getMaxIdleTime());
if (_closed)
throw new IOException("Closed");
if (!_generator.isOpen())
throw new EofException();
}
// Add the _content
_generator.addContent(buffer, Generator.MORE);
// Have to flush and complete headers?
if (_generator.isAllContentWritten())
{
flush();
close();
}
else if (_generator.isBufferFull())
_connection.commitResponse(Generator.MORE);
// Block until our buffer is free
while (buffer.length() > 0 && _generator.isOpen())
{
_generator.blockForOutput(getMaxIdleTime());
}
}
/* ------------------------------------------------------------ */
/*
* @see javax.servlet.ServletOutputStream#print(java.lang.String)
*/
@Override
public void print(String s) throws IOException
{
write(s.getBytes());
}
}
|
