From a47afec7e6c4100555ad1c91e6ef8b0e8f0eb953 Mon Sep 17 00:00:00 2001 From: Ezra Nyabuti Date: Mon, 7 Apr 2025 15:10:28 +0000 Subject: [PATCH] feat: add exception handling for product and order not found scenarios --- .../lesson14/ecommerce/EcommerceSystem.java | 10 ++++++++-- .../lesson14/ecommerce/OrderNotFoundException.java | 6 +++++- .../lesson14/ecommerce/ProductNotFoundException.java | 6 +++++- 3 files changed, 18 insertions(+), 4 deletions(-) diff --git a/lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/ecommerce/EcommerceSystem.java b/lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/ecommerce/EcommerceSystem.java index 77cf26937..cdbfe2b57 100644 --- a/lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/ecommerce/EcommerceSystem.java +++ b/lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/ecommerce/EcommerceSystem.java @@ -17,9 +17,12 @@ public void addProduct(String productId, String name) { products.put(productId, new Product(productId, name)); } - public String placeOrder(String productId, int quantity) { + public String placeOrder(String productId, int quantity) throws ProductNotFoundException { Product product = products.get(productId); String orderId = UUID.randomUUID().toString(); + if (product == null) { + throw new ProductNotFoundException("Product with ID " + productId + " not found"); + } orders.put(orderId, new Order(orderId, product, quantity)); return orderId; } @@ -28,8 +31,11 @@ public void cancelOrder(String orderId) { orders.remove(orderId); } - public String checkOrderStatus(String orderId) { + public String checkOrderStatus(String orderId) throws OrderNotFoundException { Order order = orders.get(orderId); + if (order == null) { + throw new OrderNotFoundException("Order with ID " + orderId + " not found"); + } return "Order ID: " + orderId + ", Product: " diff --git a/lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/ecommerce/OrderNotFoundException.java b/lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/ecommerce/OrderNotFoundException.java index 0104e0ab8..8db950eb9 100644 --- a/lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/ecommerce/OrderNotFoundException.java +++ b/lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/ecommerce/OrderNotFoundException.java @@ -5,4 +5,8 @@ package com.codedifferently.lesson14.ecommerce; -class OrderNotFoundException {} +public class OrderNotFoundException extends RuntimeException { + public OrderNotFoundException(String message) { + super(message); + } +} diff --git a/lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/ecommerce/ProductNotFoundException.java b/lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/ecommerce/ProductNotFoundException.java index 25aa814eb..3f371f236 100644 --- a/lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/ecommerce/ProductNotFoundException.java +++ b/lesson_14/exceptions/exceptions_app/src/main/java/com/codedifferently/lesson14/ecommerce/ProductNotFoundException.java @@ -5,4 +5,8 @@ package com.codedifferently.lesson14.ecommerce; -class ProductNotFoundException {} +public class ProductNotFoundException extends RuntimeException { + public ProductNotFoundException(String message) { + super(message); + } +}