diff options
Diffstat (limited to 'src/SemanticScuttle/Service/Cache.php')
| -rw-r--r-- | src/SemanticScuttle/Service/Cache.php | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/SemanticScuttle/Service/Cache.php b/src/SemanticScuttle/Service/Cache.php new file mode 100644 index 0000000..fa719d3 --- /dev/null +++ b/src/SemanticScuttle/Service/Cache.php @@ -0,0 +1,72 @@ +<?php +/** + * SemanticScuttle - your social bookmark manager. + * + * PHP version 5. + * + * @category Bookmarking + * @package SemanticScuttle + * @author Benjamin Huynh-Kim-Bang <mensonge@users.sourceforge.net> + * @author Christian Weiske <cweiske@cweiske.de> + * @author Eric Dane <ericdane@users.sourceforge.net> + * @license GPL http://www.gnu.org/licenses/gpl.html + * @link http://sourceforge.net/projects/semanticscuttle + */ + +/** + * SemanticScuttle caching service + * + * @category Bookmarking + * @package SemanticScuttle + * @author Benjamin Huynh-Kim-Bang <mensonge@users.sourceforge.net> + * @author Christian Weiske <cweiske@cweiske.de> + * @author Eric Dane <ericdane@users.sourceforge.net> + * @license GPL http://www.gnu.org/licenses/gpl.html + * @link http://sourceforge.net/projects/semanticscuttle + */ +class SemanticScuttle_Service_Cache extends SemanticScuttle_Service +{ + var $basedir; + var $fileextension = '.cache'; + + /** + * Returns the single service instance + * + * @param DB $db Database object + * + * @return SemanticScuttle_Service + */ + public static function getInstance($db) + { + static $instance; + if (!isset($instance)) { + $instance = new self($db); + } + return $instance; + } + + protected function __construct() + { + $this->basedir = $GLOBALS['dir_cache']; + } + + function Start($hash, $time = 300) { + $cachefile = $this->basedir .'/'. $hash . $this->fileextension; + if (file_exists($cachefile) && time() < filemtime($cachefile) + $time) { + @readfile($cachefile); + echo "\n<!-- Cached: ". date('r', filemtime($cachefile)) ." -->\n"; + unset($cachefile); + exit; + } + ob_start("ob_gzhandler"); + } + + function End($hash) { + $cachefile = $this->basedir .'/'. $hash . $this->fileextension; + $handle = fopen($cachefile, 'w'); + fwrite($handle, ob_get_contents()); + fclose($handle); + ob_flush(); + } +} +?>
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