/**
* Returns the configured instance of an eZClusterFileHandlerInterface
* See ClusteringSettings.FileHandler in file.ini
*
* @param string|bool $filename
* Optional filename the handler should be initialized with
*
* @return eZClusterFileHandlerInterface
*/
static function instance( $filename = false )
{
if ( self::$isShutdownFunctionRegistered !== true )
{
eZExecution::addCleanupHandler( array( __CLASS__, 'cleanupGeneratingFiles' ) );
self::$isShutdownFunctionRegistered = true;
}
if( $filename !== false )
{
$optionArray = array( 'iniFile' => 'file.ini',
'iniSection' => 'ClusteringSettings',
'iniVariable' => 'FileHandler',
'handlerParams'=> array( $filename ) );
$options = new ezpExtensionOptions( $optionArray );
$handler = eZExtension::getHandlerClass( $options );
return $handler;
}
else
{
// return Filehandler from GLOBALS based on ini setting.
if ( self::$globalHandler === null )
{
$optionArray = array( 'iniFile' => 'file.ini',
'iniSection' => 'ClusteringSettings',
'iniVariable' => 'FileHandler' );
$options = new ezpExtensionOptions( $optionArray );
$handler = eZExtension::getHandlerClass( $options );
self::$globalHandler = $handler;
}
else
$handler = self::$globalHandler;
return $handler;
}
}
