public static function getInstance($cachefile = NULL, $configtmpDir, $config)
{
$viewerconfig = $config;
$tmpDir = $configtmpDir;
if ($cachefile) {
if ($myxmlfile = file_get_contents("{$tmpDir}/{$cachefile}")) {
libxml_use_internal_errors(true);
$filecheck = simplexml_load_string($myxmlfile);
if (!$myxmlfile) {
$error_msg = "Error loading XML.\n<br />\n";
foreach (libxml_get_errors() as $error) {
$error_msg .= "\t" . $error->message;
}
throw new Exception($error_msg);
}
} else {
throw new Exception("Invalid CacheFile.");
}
} else {
throw new Exception("Initialization requires valid CacheFile.");
}
$cacheversion = (string) $filecheck->record->version;
if ($cacheversion == '') {
require_once 'LegacyCacheFile.class.php';
return LegacyCacheFile::getInstanceLegacy($cachefile, $tmpDir, $viewerconfig);
} else {
require_once 'Version3CacheFile.class.php';
return Version3CacheFile::getInstanceVersion3($cachefile, $tmpDir, $viewerconfig);
}
}
public static function getInstanceVersion3($cachefile = NULL, $tmpDir, $viewerconfig)
{
if (!self::$InstanceVersion3) {
self::$InstanceVersion3 = new Version3CacheFile($cachefile, $tmpDir, $viewerconfig);
}
return self::$InstanceVersion3;
}
