Fix clean RepeateHandler AggregatedobjectIds log message. (#249)

Author: tobiasake

src/main/java/com/ericsson/ei/services/SubscriptionService.java

@@ -121,8 +121,10 @@ public boolean modifySubscription(Subscription subscription, String subscription
             if (result != null) {
                 String subscriptionIdQuery = String.format(SUBSCRIPTION_ID, subscriptionName);
                 if (!cleanSubscriptionRepeatFlagHandlerDb(subscriptionIdQuery)) {
-                    LOG.error("Failed to clean subscription \"" + subscriptionName
-                            + "\" matched AggregatedObjIds from RepeatFlagHandler database");
+                    LOG.info("Subscription  \"" + subscriptionName
+                            + "\" matched aggregated objects id from repeat flag handler database could not be cleaned during the update of the subscription,\n"
+                    		+ "probably due to subscription has never matched any aggregated objects and "
+                            + "no matched aggregated objects id has been stored in database for the specific subscription.");
                 }
             }
 
@@ -142,8 +144,10 @@ public boolean deleteSubscription(String subscriptionName) throws AccessExceptio
         if (deleteResult) {
             String subscriptionIdQuery = String.format(SUBSCRIPTION_ID, subscriptionName);
             if (!cleanSubscriptionRepeatFlagHandlerDb(subscriptionIdQuery)) {
-                LOG.error("Failed to clean subscription \"" + subscriptionName
-                        + "\" matched AggregatedObjIds from RepeatFlagHandler database");
+                LOG.info("Subscription  \"" + subscriptionName
+                        + "\" matched aggregated objects id from repeat flag handler database could not be cleaned during the removal of subscription,\n"
+                		+ "probably due to subscription has never matched any aggregated objects and "
+                        + "no matched aggregated objects id has been stored in database for the specific subscription.");
             }
         } else if (doSubscriptionExist(subscriptionName)) {
             String message = "Failed to delete subscription \"" + subscriptionName