updating README.md

scs-100/README.md

@@ -55,3 +55,4 @@ you should now be able to place your order by calling the following `curl` comma
 # assuming your app is listening on 8080
 ORDER_UUID=$(curl --silent -H 'Content-Type: application/json' -d "{\"itemName\":\"book\"}" http://localhost:8080/order | jq -r '.orderUuid') && for i in `seq 1 15`; do echo $(curl --silent "http://localhost:8080/order/status/"$ORDER_UUID); sleep 1; done;
 ```
+Note: make sure you have already installed the `jq` 

scs-100/src/main/java/com/ehsaniara/scs_kafka_intro/scs100/OrderService.java

@@ -72,11 +72,12 @@ public class OrderService {
 
         Thread.sleep(5_000);//5 sec delay
 
-        // just a simulation of create exception for random orders (1 in 2) in case of inventory insufficiency
+        // just to simulate an dummy exception for random order (1 in 2) [ inventory insufficiency ]
         if (System.currentTimeMillis() % 2 == 0) {
             orderIn.setOrderStatus(OrderStatus.OUT_OF_STOCK);
             orderDataBase.put(orderIn.getOrderUuid(), orderIn);
             log.warn("Let's assume we ran out of stock for item: {}", orderIn.getItemName());
+
             Thread.sleep(5_000);//5 sec delay
             throw new OrderFailedException(String.format("insufficient inventory for order: %s", orderIn.getOrderUuid()));
         }