/**
* Tries to load the logfile from a cached request.
*
* @return string cachecontent, false if cache is invalid or no cached log was found
*/
private function getContentFromCache()
{
//search for a cached file
$strFilename = $this->generateCachename();
if (is_file(SVN2RSS_PROJECT_ROOT . "/" . SVN2RSS_SYSTEM_FOLDER . "/" . SVN2RSS_CACHE_FOLDER . "/" . $strFilename)) {
//file exists, read content
$strFileContent = file_get_contents(SVN2RSS_PROJECT_ROOT . "/" . SVN2RSS_SYSTEM_FOLDER . "/" . SVN2RSS_CACHE_FOLDER . "/" . $strFilename);
//validate cache-lease-time, so get first row
$strFirstRow = trim(substr($strFileContent, 0, strpos($strFileContent, "\r\n")));
//format: projectname | version | generation time hr | gentime in secs
$arrFirstRowParts = explode("|", $strFirstRow);
$intTimestamp = trim($arrFirstRowParts[3]);
//validate the timestamp against the refreh interval
if ($intTimestamp >= time() - $this->objConfig->getIntRefreshInterval()) {
$strLogContent = substr($strFileContent, strpos($strFileContent, "\r\n") + 2);
return $strLogContent;
}
}
return false;
}
