| 2388 |
jpm |
1 |
<?php
|
|
|
2 |
/**
|
|
|
3 |
* PHPExcel
|
|
|
4 |
*
|
|
|
5 |
* Copyright (c) 2006 - 2013 PHPExcel
|
|
|
6 |
*
|
|
|
7 |
* This library is free software; you can redistribute it and/or
|
|
|
8 |
* modify it under the terms of the GNU Lesser General Public
|
|
|
9 |
* License as published by the Free Software Foundation; either
|
|
|
10 |
* version 2.1 of the License, or (at your option) any later version.
|
|
|
11 |
*
|
|
|
12 |
* This library is distributed in the hope that it will be useful,
|
|
|
13 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
14 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
15 |
* Lesser General Public License for more details.
|
|
|
16 |
*
|
|
|
17 |
* You should have received a copy of the GNU Lesser General Public
|
|
|
18 |
* License along with this library; if not, write to the Free Software
|
|
|
19 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
20 |
*
|
|
|
21 |
* @category PHPExcel
|
|
|
22 |
* @package PHPExcel_CachedObjectStorage
|
|
|
23 |
* @copyright Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)
|
|
|
24 |
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
|
|
|
25 |
* @version ##VERSION##, ##DATE##
|
|
|
26 |
*/
|
|
|
27 |
|
|
|
28 |
|
|
|
29 |
/**
|
|
|
30 |
* PHPExcel_CachedObjectStorage_Igbinary
|
|
|
31 |
*
|
|
|
32 |
* @category PHPExcel
|
|
|
33 |
* @package PHPExcel_CachedObjectStorage
|
|
|
34 |
* @copyright Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)
|
|
|
35 |
*/
|
|
|
36 |
class PHPExcel_CachedObjectStorage_Igbinary extends PHPExcel_CachedObjectStorage_CacheBase implements PHPExcel_CachedObjectStorage_ICache {
|
|
|
37 |
|
|
|
38 |
/**
|
|
|
39 |
* Store cell data in cache for the current cell object if it's "dirty",
|
|
|
40 |
* and the 'nullify' the current cell object
|
|
|
41 |
*
|
|
|
42 |
* @return void
|
|
|
43 |
* @throws PHPExcel_Exception
|
|
|
44 |
*/
|
|
|
45 |
protected function _storeData() {
|
|
|
46 |
if ($this->_currentCellIsDirty) {
|
|
|
47 |
$this->_currentObject->detach();
|
|
|
48 |
|
|
|
49 |
$this->_cellCache[$this->_currentObjectID] = igbinary_serialize($this->_currentObject);
|
|
|
50 |
$this->_currentCellIsDirty = false;
|
|
|
51 |
}
|
|
|
52 |
$this->_currentObjectID = $this->_currentObject = null;
|
|
|
53 |
} // function _storeData()
|
|
|
54 |
|
|
|
55 |
|
|
|
56 |
/**
|
|
|
57 |
* Add or Update a cell in cache identified by coordinate address
|
|
|
58 |
*
|
|
|
59 |
* @param string $pCoord Coordinate address of the cell to update
|
|
|
60 |
* @param PHPExcel_Cell $cell Cell to update
|
|
|
61 |
* @return void
|
|
|
62 |
* @throws PHPExcel_Exception
|
|
|
63 |
*/
|
|
|
64 |
public function addCacheData($pCoord, PHPExcel_Cell $cell) {
|
|
|
65 |
if (($pCoord !== $this->_currentObjectID) && ($this->_currentObjectID !== null)) {
|
|
|
66 |
$this->_storeData();
|
|
|
67 |
}
|
|
|
68 |
|
|
|
69 |
$this->_currentObjectID = $pCoord;
|
|
|
70 |
$this->_currentObject = $cell;
|
|
|
71 |
$this->_currentCellIsDirty = true;
|
|
|
72 |
|
|
|
73 |
return $cell;
|
|
|
74 |
} // function addCacheData()
|
|
|
75 |
|
|
|
76 |
|
|
|
77 |
/**
|
|
|
78 |
* Get cell at a specific coordinate
|
|
|
79 |
*
|
|
|
80 |
* @param string $pCoord Coordinate of the cell
|
|
|
81 |
* @throws PHPExcel_Exception
|
|
|
82 |
* @return PHPExcel_Cell Cell that was found, or null if not found
|
|
|
83 |
*/
|
|
|
84 |
public function getCacheData($pCoord) {
|
|
|
85 |
if ($pCoord === $this->_currentObjectID) {
|
|
|
86 |
return $this->_currentObject;
|
|
|
87 |
}
|
|
|
88 |
$this->_storeData();
|
|
|
89 |
|
|
|
90 |
// Check if the entry that has been requested actually exists
|
|
|
91 |
if (!isset($this->_cellCache[$pCoord])) {
|
|
|
92 |
// Return null if requested entry doesn't exist in cache
|
|
|
93 |
return null;
|
|
|
94 |
}
|
|
|
95 |
|
|
|
96 |
// Set current entry to the requested entry
|
|
|
97 |
$this->_currentObjectID = $pCoord;
|
|
|
98 |
$this->_currentObject = igbinary_unserialize($this->_cellCache[$pCoord]);
|
|
|
99 |
// Re-attach this as the cell's parent
|
|
|
100 |
$this->_currentObject->attach($this);
|
|
|
101 |
|
|
|
102 |
// Return requested entry
|
|
|
103 |
return $this->_currentObject;
|
|
|
104 |
} // function getCacheData()
|
|
|
105 |
|
|
|
106 |
|
|
|
107 |
/**
|
|
|
108 |
* Get a list of all cell addresses currently held in cache
|
|
|
109 |
*
|
|
|
110 |
* @return array of string
|
|
|
111 |
*/
|
|
|
112 |
public function getCellList() {
|
|
|
113 |
if ($this->_currentObjectID !== null) {
|
|
|
114 |
$this->_storeData();
|
|
|
115 |
}
|
|
|
116 |
|
|
|
117 |
return parent::getCellList();
|
|
|
118 |
}
|
|
|
119 |
|
|
|
120 |
|
|
|
121 |
/**
|
|
|
122 |
* Clear the cell collection and disconnect from our parent
|
|
|
123 |
*
|
|
|
124 |
* @return void
|
|
|
125 |
*/
|
|
|
126 |
public function unsetWorksheetCells() {
|
|
|
127 |
if(!is_null($this->_currentObject)) {
|
|
|
128 |
$this->_currentObject->detach();
|
|
|
129 |
$this->_currentObject = $this->_currentObjectID = null;
|
|
|
130 |
}
|
|
|
131 |
$this->_cellCache = array();
|
|
|
132 |
|
|
|
133 |
// detach ourself from the worksheet, so that it can then delete this object successfully
|
|
|
134 |
$this->_parent = null;
|
|
|
135 |
} // function unsetWorksheetCells()
|
|
|
136 |
|
|
|
137 |
|
|
|
138 |
/**
|
|
|
139 |
* Identify whether the caching method is currently available
|
|
|
140 |
* Some methods are dependent on the availability of certain extensions being enabled in the PHP build
|
|
|
141 |
*
|
|
|
142 |
* @return boolean
|
|
|
143 |
*/
|
|
|
144 |
public static function cacheMethodIsAvailable() {
|
|
|
145 |
if (!function_exists('igbinary_serialize')) {
|
|
|
146 |
return false;
|
|
|
147 |
}
|
|
|
148 |
|
|
|
149 |
return true;
|
|
|
150 |
}
|
|
|
151 |
|
|
|
152 |
}
|