smolnar82 commented on code in PR #826:
URL: https://github.com/apache/knox/pull/826#discussion_r1473202455


##########
gateway-server/src/main/java/org/apache/knox/gateway/services/factory/TokenStateServiceFactory.java:
##########
@@ -61,17 +62,32 @@ protected Service createService(GatewayServices 
gatewayServices, ServiceType ser
           service.init(gatewayConfig, options);
         } catch (ServiceLifecycleException e) {
           LOG.errorInitializingService(implementation, e.getMessage(), e);
-          service = new AliasBasedTokenStateService();
-          ((AliasBasedTokenStateService) 
service).setAliasService(getAliasService(gatewayServices));
+          service = useDerbyDatabaseTokenStateService(gatewayServices, 
gatewayConfig, options);
         }
+      } else if (matchesImplementation(implementation, 
DerbyDBTokenStateService.class, true)) {
+        service = useDerbyDatabaseTokenStateService(gatewayServices, 
gatewayConfig, options);
       }
 
-      logServiceUsage(isEmptyDefaultImplementation(implementation) ? 
AliasBasedTokenStateService.class.getName() : implementation, serviceType);
+      logServiceUsage(service.getClass().getName(), serviceType);
     }
 
     return service;
   }
 
+  private Service useDerbyDatabaseTokenStateService(GatewayServices 
gatewayServices, GatewayConfig gatewayConfig, Map<String, String> options) {
+    Service service;
+    try {
+      service = new DerbyDBTokenStateService();
+      ((DerbyDBTokenStateService) 
service).setAliasService(getAliasService(gatewayServices));
+      ((DerbyDBTokenStateService) 
service).setMasterService(getMasterService(gatewayServices));
+      service.init(gatewayConfig, options);
+    } catch (ServiceLifecycleException e) {
+      LOG.errorInitializingService(DerbyDBTokenStateService.class.getName(), 
e.getMessage(), e);
+      service = new DefaultTokenStateService();

Review Comment:
   Nope, I don't think that's a good idea. The aim here is to have a TSS 
working OOTB even if there were some initialization issues. The same as we had 
in previous versions.



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