@Override public Product getProductById(String productId) { Product productById = null; for (Product product : listOfProducts) { if (productId != null && product.getProductId() != null && product.getProductId().equals(productId)) { productById = product; break; } } if (productById == null) { throw new IllegalArgumentException("No product found with the product id : " + productId); } return productById; }
public InMemoryProductRepository() { Product iphone = new Product("P1234", "iPhone 5s", new BigDecimal(500)); iphone.setDescription( "Apple iPhone 5s smartphone with 4.00-inch 640x1136 display and 8-megapixel rear camera"); iphone.setCategory("Smart Phone"); iphone.setManufacturer("Apple"); iphone.setUnitsInStock(1000); Product laptop_dell = new Product("P1235", "Dell Inspiron", new BigDecimal(700)); laptop_dell.setDescription( "Dell Inspiron 14-inch Laptop (Black) with 3rd Generation Intel Core processors"); laptop_dell.setCategory("Laptop"); laptop_dell.setManufacturer("Dell"); laptop_dell.setUnitsInStock(1000); Product tablet_Nexus = new Product("P1236", "Nexus 7", new BigDecimal(300)); tablet_Nexus.setDescription( "Google Nexus 7 is the lightest 7 inch tablet With a quad-core Qualcomm Snapdragon S4 Pro processor"); tablet_Nexus.setCategory("Tablet"); tablet_Nexus.setManufacturer("Google"); tablet_Nexus.setUnitsInStock(1000); listOfProducts.add(iphone); listOfProducts.add(laptop_dell); listOfProducts.add(tablet_Nexus); }