sTa1kEr
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Код: <?php
// Абсолютный путь к корню сайта
if (!defined("AL_ROOT"))
define("AL_ROOT", "/home/autoload/www");
// Путь к каталогу с классами относительно AL_ROOT
if (!defined("AL_CLASSDIR"))
define("AL_CLASSDIR", "/classes");
// Глубина сканирования директорий
if (!defined("AL_LEVEL"))
define("AL_LEVEL", 5);
// Режим отладки
if (!defined("AL_DEBUG"))
define("AL_DEBUG", true);
function __autoload($className)
{
Autoload::Instance()->LoadClass($className);
}
function Debug($msg)
{
if (AL_DEBUG)
{
if (defined("STDOUT"))
{
fwrite(STDOUT, $msg);
}
else
{
echo nl2br($msg);
flush();
}
}
}
class Autoload
{
private static $_thisInstance = null;
private $Pattern = null;
private $ClassMap = null;
private $IsParsed = false;
private function __construct()
{
if (!file_exists("classes.map"))
{
$this->ClassMap = array(array(), array());
$this->ParseSources();
$this->Serialize();
}
else
{
$this->ClassMap = unserialize(file_get_contents("classes.map"));
}
}
public function ParseSources()
{
Debug("Start parsing classes.\n");
ini_set("max_execution_time", 900);
set_time_limit(900);
ignore_user_abort();
if ($this->Pattern === null)
{
for ($i = 0; $i < AL_LEVEL + 1; $i++)
{
$level[$i] = implode("*", array_fill(0, $i + 1, "/"));
}
$this->Pattern = "{".implode(",", $level)."}*.php";
}
Debug("Get list php files.\n");
foreach (glob(AL_ROOT.AL_CLASSDIR.$this->Pattern, GLOB_BRACE) as $fileName)
{
$this->ParseFile(substr($fileName, strlen(AL_ROOT)));
}
Debug("Parse successfull finished.\n");
$this->IsParsed = true;
}
private function Serialize()
{
if (count($this->ClassMap[0]) > 0 && count($this->ClassMap[1]) > 0)
{
file_put_contents("classes.map", serialize($this->ClassMap));
}
}
private function ParseFile($fileName)
{
Debug("Parse file $fileName: ");
$lastModified = filemtime(AL_ROOT.$fileName);
if (isset($this->ClassMap[1][$fileName]))
{
if ($lastModified <= $this->ClassMap[1][$fileName])
{
Debug("File not modified.\n");
return;
}
else
{
$this->UnsetFile($fileName);
}
}
$source = file_get_contents(AL_ROOT.$fileName);
$tokens = token_get_all($source);
while (($token = array_shift($tokens)) !== null)
{
if (is_array($token) && ($token[0] == T_CLASS || $token[0] == T_INTERFACE) && $tokens[1][0] == T_STRING)
{
if (isset($this->ClassMap[0][$tokens[1][1]]))
{
Debug("\nWarning! Class {$tokens[1][1]} alrady declared in {$this->ClassMap[0][$tokens[1][1]]}\n");
}
else
{
$this->ClassMap[0][$tokens[1][1]] = $fileName;
}
Debug("{$tokens[1][1]}; ");
}
}
Debug("\n");
$this->ClassMap[1][$fileName] = $lastModified;
}
private function UnsetFile($fileName)
{
unset($this->ClassMap[1][$fileName]);
while(($key = array_search($fileName, $this->ClassMap[0])) !== false)
{
unset($this->ClassMap[0][$key]);
}
if ($this->IsParsed)
{
$this->Serialize();
}
}
private function UnsetClass($className)
{
$file = $this->ClassMap[0][$className];
$this->UnsetFile($file);
}
/**
* @return Autoload
*/
public static function Instance()
{
if (Autoload::$_thisInstance === null)
{
Autoload::$_thisInstance = new Autoload();
}
return Autoload::$_thisInstance;
}
public function LoadClass($className)
{
if (isset($this->ClassMap[0][$className]))
{
@include_once(AL_ROOT.$this->ClassMap[0][$className]);
if (!class_exists($className, false) && !interface_exists($className, false))
{
$this->UnsetClass($className);
$this->Serialize();
$this->LoadClass($className);
}
}
else
{
if (!$this->IsParsed)
{
$this->ParseSources();
$this->Serialize();
$this->LoadClass($className);
}
}
}
}
?> |
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Всего записей: 279 | Зарегистр. 28-07-2005 | Отправлено: 18:07 03-05-2007 | Исправлено: sTa1kEr, 18:10 03-05-2007 |
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