_siteIdent = createSiteIdentifier(_context);
// create a site resource loader if the user set up the site-specific jar file path
String siteJarPath = getInitParameter(config, SITE_JAR_PATH_KEY);
if (!StringUtil.isBlank(siteJarPath)) {
_siteLoader = new SiteResourceLoader(_siteIdent, siteJarPath);
}
// instantiate our message manager if the application wants one
String bundlePath = getInitParameter(config, MESSAGE_BUNDLE_PATH_KEY);
if (!StringUtil.isBlank(bundlePath)) {