protected Realm getRealm(HttpServletRequest request) {
String serverName = request.getServerName();
String contextPath = request.getContextPath();
Host host = (Host) engine.findChild(serverName);
if (host == null) {
// if it cannot find host, then use the default host.
host = (Host) engine.findChild(engine.getDefaultHost());
if (host == null)
throw new NullPointerException(
"Could not find Tomcat host for: " + serverName + " or: " + engine.getDefaultHost());
}
Context context = (Context) host.findChild(contextPath);
if (context == null)
throw new NullPointerException("Could not find Tomcat context for: " + contextPath);
Realm realm = context.getRealm();
if (realm == null)
throw new NullPointerException(
"Could not find Tomcat realm for: " + serverName + "" + contextPath);
return realm;
}
