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<?php
class PHPExcel_CachedObjectStorageFactory {
const cache_in_memory = 'Memory';
const cache_in_memory_gzip = 'MemoryGZip';
const cache_in_memory_serialized = 'MemorySerialized';
const cache_to_discISAM = 'DiscISAM';
const cache_to_apc = 'APC';
const cache_to_memcache = 'Memcache';
const cache_to_phpTemp = 'PHPTemp';
const cache_to_wincache = 'Wincache';
private static $_cacheStorageMethod = null;
private static $_cacheStorageClass = null;
private static $_storageMethods = array(
self::cache_in_memory,
self::cache_in_memory_gzip,
self::cache_in_memory_serialized,
self::cache_to_phpTemp,
self::cache_to_discISAM,
self::cache_to_apc,
self::cache_to_memcache,
self::cache_to_wincache,
);
private static $_storageMethodDefaultParameters = array(
self::cache_in_memory => array(
),
self::cache_in_memory_gzip => array(
),
self::cache_in_memory_serialized => array(
),
self::cache_to_phpTemp => array( 'memoryCacheSize' => '1MB'
),
self::cache_to_discISAM => array(
),
self::cache_to_apc => array( 'cacheTime' => 600
),
self::cache_to_memcache => array( 'memcacheServer' => 'localhost',
'memcachePort' => 11211,
'cacheTime' => 600
),
self::cache_to_wincache => array( 'cacheTime' => 600
)
);
private static $_storageMethodParameters = array();
public static function getCacheStorageMethod() {
if (!is_null(self::$_cacheStorageMethod)) {
return self::$_cacheStorageMethod;
}
return null;
} // function getCacheStorageMethod()
public static function getCacheStorageClass() {
if (!is_null(self::$_cacheStorageClass)) {
return self::$_cacheStorageClass;
}
return null;
} // function getCacheStorageClass()
public static function getCacheStorageMethods() {
return self::$_storageMethods;
} // function getCacheStorageMethods()
public static function initialize($method = self::cache_in_memory, $arguments = array()) {
if (!in_array($method,self::$_storageMethods)) {
return false;
}
switch($method) {
case self::cache_to_apc :
if (!function_exists('apc_store')) {
return false;
}
if (apc_sma_info() === false) {
return false;
}
break;
case self::cache_to_memcache :
if (!function_exists('memcache_add')) {
return false;
}
break;
case self::cache_to_wincache :
if (!function_exists('wincache_ucache_add')) {
return false;
}
break;
}
self::$_storageMethodParameters[$method] = self::$_storageMethodDefaultParameters[$method];
foreach($arguments as $k => $v) {
if (isset(self::$_storageMethodParameters[$method][$k])) {
self::$_storageMethodParameters[$method][$k] = $v;
}
}
if (is_null(self::$_cacheStorageMethod)) {
self::$_cacheStorageClass = 'PHPExcel_CachedObjectStorage_'.$method;
self::$_cacheStorageMethod = $method;
}
return true;
} // function initialize()
public static function getInstance(PHPExcel_Worksheet $parent) {
if (is_null(self::$_cacheStorageMethod)) {
self::initialize();
}
$instance = new self::$_cacheStorageClass($parent,self::$_storageMethodParameters[self::$_cacheStorageMethod]);
if (!is_null($instance)) {
return $instance;
}
return false;
} // function getInstance()
}
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