SplObjectStorage amélioré (3ème mot)
Bonjour à tous,
Ayant eu besoin d'utiliser massivement un SplObjectStorage, je me suis cogné à ses limitations par défaut. Du coup étant adepte du yaka se servir soi-même, j'ai décidé de l'améliorer en lui ajoutant des fonctionnalités qui m'ont été indispensables et surtout qui m'ont facilité grandement la vie.
Voici une classe SplObjectStoragePlus qui j'espère vous servira un jour :-)
Code:
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
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
| <?php
/**
* Copyright (C) 2011+ Martin Lacroix
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* @license GNU General Public License Version 3 (GPLv3)
* @link http://www.gnu.org/licenses/
*/
/**
* PHP_VER : PHP 5.3+
* LIBRARIES : SPL
* KEYWORDS : SPLOBJECTSTORAGE EXTENDED IMPROVED
* SPLOBJECTSTORAGE ETENDU AMELIORE
*
* Class managing an extended SplObjectStorage
* New features:
* - always move the internal pointer to the last object inserted into the storage
* - compute the hashcode of any arbitrary object without inserting it into the storage
* - read the hashcode of every or all objects in the storage
* - access an object by its hashcode or position in the storage
* - directly access the data attached to an object by its hashcode or position in the storage
*
* Classe gérant un SplObjectStorage amélioré
* Nouveautés :
* - déplace automatiquement le pointeur interne sur le dernier objet inséré
* - calcule le hashcode de n'importe quel objet sans l'insérer dans le silo
* - extraction d'un ou de tous les hashcodes du silo
* - sélection d'un objet identifié par son hashcode ou sa position dans le silo
* - lecture directe des infos attachées à un objet identifié par son hashcode ou sa position dans le silo
*
* @package tools
* @version 1.0.0
* @author Martin Lacroix
*/
class SplObjectStoragePlus extends SplObjectStorage {
private $_map = array();
private $_index = -1;
/**
* @param SplObjectStorage $storage
*/
function addAll(SplObjectStorage $storage) {
$storage->rewind();
while($storage->valid()) {
$this->offsetSet($storage->current(), $storage->getInfo());
$storage->next();
}
}
/**
* Add an object to the storage
* @param object $object
* @param mixed $data
*/
function attach($object, $data = NULL) {
$this->offsetSet($object, $data);
}
/**
* Remove an object from the storage
* @param object object
*/
function detach($object) {
$this->offsetUnset($object);
}
/**
* Add an object to the storage and set the internal pointer on it
* @param object $object
* @param mixed $data
*/
function offsetSet($object, $data = NULL) {
$hash = spl_object_hash($object);
if (FALSE === array_search($hash, $this->_map, TRUE)) {
parent::attach($object, $data);
$this->_map[++$this->_index] = $hash;
$this->selectObjectByKey($this->_index);
}
}
/**
* Remove an object from the storage
* @param object object
*/
function offsetUnset($object) {
$index = array_search(spl_object_hash($object), $this->_map, TRUE);
if (FALSE !== $index) {
parent::offsetUnset($object);
unset($this->_map[$index]);
}
}
/**
* @param SplObjectStorage $storage
*/
function removeAll(SplObjectStorage $storage) {
$storage->rewind();
while($storage->valid()) {
$this->offsetUnset($storage->current());
$storage->next();
}
}
/**
* @param SplObjectStorage $storage
*/
function removeAllExcept(SplObjectStorage $storage) {
parent::rewind();
while(parent::valid()) {
$current = parent::current();
parent::next();
if ( ! $storage->contains($current)) {
$this->offsetUnset($object);
}
}
}
/**
* Returns the hashcode of the current object
* @return string
*/
function getHash() {
return spl_object_hash(parent::current());
}
/**
* Returns the object identified by its hashcode
* @param string $hash
* @return object|NULL
*/
function getObjectByHash($hash) {
$index = array_search($hash, $this->_map);
if (FALSE !== $index) {
parent::rewind();
while(parent::valid()) {
if (parent::key() === $index) {
return parent::current();
}
parent::next();
}
}
}
/**
* Returns the position of an object in the storage
* Object identified by its hashcode
* @param string $hash
* @return int|NULL
*/
function getKeyByHash($hash) {
$index = array_search($hash, $this->_map, TRUE);
return (FALSE === $index) ? NULL : $index;
}
/**
* Returns the hashcode of an object identified by its position
* @param int $key
* @return string|NULL
*/
function getHashByKey($key) {
return $this->_map[$key];
}
/**
* Returns the data associated with an object identified by its hashcode
* @param string $hash
* @return mixed|NULL
*/
function getInfoByHash($hash) {
$index = array_search($hash, $this->_map, TRUE);
if (FALSE !== $index) {
return $this->getInfoByKey($index);
}
}
/**
* Returns the data associated with an object identified by its position
* @param int $key
* @return mixed|NULL
*/
function getInfoByKey($key) {
if (isset($this->_map[$key])) {
parent::rewind();
while(parent::valid()) {
if (parent::key() === $key) {
return parent::getInfo();
}
parent::next();
}
}
}
/**
* Move the internal pointer to an object identified by its hashcode
* @param mixed $hash
* @return bool FALSE if the object doesn't exist
*/
function selectObjectByHash($hash) {
$index = array_search($hash, $this->_map, TRUE);
return (FALSE !== $index)
? $this->selectObjectByKey($index)
: FALSE;
}
/**
* Move the internal pointer to an object identified by its position in the storage
* @param int $key
* @return bool FALSE if the object doesn't exist
*/
function selectObjectByKey($key) {
if (isset($this->_map[$key])) {
parent::rewind();
while(parent::valid()) {
if (parent::key() === $key) {
return TRUE;
}
parent::next();
}
}
return FALSE;
}
/**
* Returns the hashcode of the object in parameter
* @param mixed $object
* @return string
*/
static function computeHash($object) {
return spl_object_hash($object);
}
/**
* Returns the array of hashs
* @return array Array(position in the storage => hashcode)
*/
function allHashs() {
return $this->_map;
}
}
?> |
Si vous tombez sur un problème n'hésitez pas à m'en faire part.
Bon code :ccool:
