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
196
197
198
199
200
201
202
203
204
205
206
|
<?php
/*
* This file is part of SwiftMailer.
* (c) 2004-2009 Chris Corbyn
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* A basic KeyCache backed by an array.
*
* @author Chris Corbyn
*/
class Swift_KeyCache_ArrayKeyCache implements Swift_KeyCache
{
/**
* Cache contents.
*
* @var array
*/
private $_contents = array();
/**
* An InputStream for cloning.
*
* @var Swift_KeyCache_KeyCacheInputStream
*/
private $_stream;
/**
* Create a new ArrayKeyCache with the given $stream for cloning to make
* InputByteStreams.
*
* @param Swift_KeyCache_KeyCacheInputStream $stream
*/
public function __construct(Swift_KeyCache_KeyCacheInputStream $stream)
{
$this->_stream = $stream;
}
/**
* Set a string into the cache under $itemKey for the namespace $nsKey.
*
* @see MODE_WRITE, MODE_APPEND
*
* @param string $nsKey
* @param string $itemKey
* @param string $string
* @param int $mode
*/
public function setString($nsKey, $itemKey, $string, $mode)
{
$this->_prepareCache($nsKey);
switch ($mode) {
case self::MODE_WRITE:
$this->_contents[$nsKey][$itemKey] = $string;
break;
case self::MODE_APPEND:
if (!$this->hasKey($nsKey, $itemKey)) {
$this->_contents[$nsKey][$itemKey] = '';
}
$this->_contents[$nsKey][$itemKey] .= $string;
break;
default:
throw new Swift_SwiftException(
'Invalid mode ['.$mode.'] used to set nsKey='.
$nsKey.', itemKey='.$itemKey
);
}
}
/**
* Set a ByteStream into the cache under $itemKey for the namespace $nsKey.
*
* @see MODE_WRITE, MODE_APPEND
*
* @param string $nsKey
* @param string $itemKey
* @param Swift_OutputByteStream $os
* @param int $mode
*/
public function importFromByteStream($nsKey, $itemKey, Swift_OutputByteStream $os, $mode)
{
$this->_prepareCache($nsKey);
switch ($mode) {
case self::MODE_WRITE:
$this->clearKey($nsKey, $itemKey);
case self::MODE_APPEND:
if (!$this->hasKey($nsKey, $itemKey)) {
$this->_contents[$nsKey][$itemKey] = '';
}
while (false !== $bytes = $os->read(8192)) {
$this->_contents[$nsKey][$itemKey] .= $bytes;
}
break;
default:
throw new Swift_SwiftException(
'Invalid mode ['.$mode.'] used to set nsKey='.
$nsKey.', itemKey='.$itemKey
);
}
}
/**
* Provides a ByteStream which when written to, writes data to $itemKey.
*
* NOTE: The stream will always write in append mode.
*
* @param string $nsKey
* @param string $itemKey
* @param Swift_InputByteStream $writeThrough
*
* @return Swift_InputByteStream
*/
public function getInputByteStream($nsKey, $itemKey, Swift_InputByteStream $writeThrough = null)
{
$is = clone $this->_stream;
$is->setKeyCache($this);
$is->setNsKey($nsKey);
$is->setItemKey($itemKey);
if (isset($writeThrough)) {
$is->setWriteThroughStream($writeThrough);
}
return $is;
}
/**
* Get data back out of the cache as a string.
*
* @param string $nsKey
* @param string $itemKey
*
* @return string
*/
public function getString($nsKey, $itemKey)
{
$this->_prepareCache($nsKey);
if ($this->hasKey($nsKey, $itemKey)) {
return $this->_contents[$nsKey][$itemKey];
}
}
/**
* Get data back out of the cache as a ByteStream.
*
* @param string $nsKey
* @param string $itemKey
* @param Swift_InputByteStream $is to write the data to
*/
public function exportToByteStream($nsKey, $itemKey, Swift_InputByteStream $is)
{
$this->_prepareCache($nsKey);
$is->write($this->getString($nsKey, $itemKey));
}
/**
* Check if the given $itemKey exists in the namespace $nsKey.
*
* @param string $nsKey
* @param string $itemKey
*
* @return bool
*/
public function hasKey($nsKey, $itemKey)
{
$this->_prepareCache($nsKey);
return array_key_exists($itemKey, $this->_contents[$nsKey]);
}
/**
* Clear data for $itemKey in the namespace $nsKey if it exists.
*
* @param string $nsKey
* @param string $itemKey
*/
public function clearKey($nsKey, $itemKey)
{
unset($this->_contents[$nsKey][$itemKey]);
}
/**
* Clear all data in the namespace $nsKey if it exists.
*
* @param string $nsKey
*/
public function clearAll($nsKey)
{
unset($this->_contents[$nsKey]);
}
/**
* Initialize the namespace of $nsKey if needed.
*
* @param string $nsKey
*/
private function _prepareCache($nsKey)
{
if (!array_key_exists($nsKey, $this->_contents)) {
$this->_contents[$nsKey] = array();
}
}
}
|
