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6a488035 TO |
1 | <?php |
2 | ||
3 | class CRM_Utils_Cache_SerializeCache implements CRM_Utils_Cache_Interface { | |
4 | ||
5 | /** | |
6 | * The cache storage container, an array by default, stored in a file under templates | |
7 | */ | |
8 | private $_cache; | |
9 | ||
10 | /** | |
11 | * Constructor | |
12 | * | |
13 | * @param array $config an array of configuration params | |
14 | * | |
15 | * @return void | |
16 | */ | |
17 | function __construct($config) { | |
18 | $this->_cache = array(); | |
19 | } | |
20 | ||
21 | function fileName ($key) { | |
22 | if (strlen($key) > 50) | |
23 | return CIVICRM_TEMPLATE_COMPILEDIR ."CRM_".md5($key).".php"; | |
24 | return CIVICRM_TEMPLATE_COMPILEDIR .$key.".php"; | |
25 | } | |
26 | ||
27 | function get ($key) { | |
28 | if (array_key_exists($key,$this->_cache)) | |
29 | return $this->_cache[$key]; | |
30 | ||
31 | if (!file_exists($this->fileName ($key))) { | |
32 | return; | |
33 | } | |
34 | $this->_cache[$key] = unserialize (substr (file_get_contents ($this->fileName ($key)),8)); | |
35 | return $this->_cache[$key]; | |
36 | } | |
37 | ||
38 | function set($key, &$value) { | |
39 | if (file_exists($this->fileName ($key))) { | |
40 | return; | |
41 | } | |
42 | $this->_cache[$key] = $value; | |
43 | file_put_contents ($this->fileName ($key),"<?php //".serialize ($value)); | |
44 | } | |
45 | ||
46 | function delete($key) { | |
47 | if (file_exists($this->fileName ($key))) { | |
48 | unlink ($this->fileName ($key)); | |
49 | } | |
50 | unset($this->_cache[$key]); | |
51 | } | |
52 | ||
53 | function flush($key =null) { | |
54 | $prefix = "CRM_"; | |
55 | if (!$handle = opendir(CIVICRM_TEMPLATE_COMPILEDIR)) { | |
56 | return; // die? Error? | |
57 | } | |
58 | while (false !== ($entry = readdir($handle))) { | |
59 | if (substr ($entry,0,4) == $prefix) { | |
60 | unlink (CIVICRM_TEMPLATE_COMPILEDIR.$entry); | |
61 | } | |
62 | } | |
63 | closedir($handle); | |
64 | unset($this->_cache); | |
65 | $this->_cache = array(); | |
66 | } | |
67 | } | |
68 |