60 lines
2.4 KiB
Java
60 lines
2.4 KiB
Java
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package com.iluwatar.datatransferenum;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* The Data Transfer Object pattern is a design pattern in which an data transfer object is used to
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* serve related information together to avoid multiple call for each piece of information.
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*
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* <p>In this example, ({@link App}) as as product details consumer i.e. client to
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* request for product details to server.
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*
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* <p>productResource ({@link ProductResource}) act as server to serve product information. And
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* The productDto ({@link ProductDto} is data transfer object to share product information.
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*/
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public class App {
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private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
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/**
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* Method as act client and request to server for details.
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*
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* @param args program argument.
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*/
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public static void main(String[] args) {
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Product tv =
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new Product().setId(1L).setName("TV").setSupplier("Sony").setPrice(1000D).setCost(1090D);
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Product microwave =
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new Product().setId(2L).setName("microwave").setSupplier("Delonghi").setPrice(1000D)
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.setCost(1090D);
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Product refrigerator =
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new Product().setId(3L).setName("refrigerator").setSupplier("Botsch").setPrice(1000D)
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.setCost(1090D);
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Product airConditioner =
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new Product().setId(4L).setName("airConditioner").setSupplier("LG").setPrice(1000D)
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.setCost(1090D);
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List<Product> products =
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new ArrayList<>(Arrays.asList(tv, microwave, refrigerator, airConditioner));
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ProductResource productResource = new ProductResource(products);
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LOGGER.info("####### List of products including sensitive data just for admins: \n {}",
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Arrays.toString(productResource.getAllProductsForAdmin().toArray()));
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LOGGER.info("####### List of products for customers: \n {}",
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Arrays.toString(productResource.getAllProductsForCustomer().toArray()));
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LOGGER.info("####### Going to save Sony PS5 ...");
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ProductDto.Request.Create createProductRequestDto = new ProductDto.Request.Create()
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.setName("PS5")
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.setCost(1000D)
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.setPrice(1220D)
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.setSupplier("Sony");
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productResource.save(createProductRequestDto);
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LOGGER.info("####### List of products after adding PS5: {}",
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Arrays.toString(productResource.getProducts().toArray()));
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}
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}
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