mirror of
https://github.com/tiennm99/java-design-patterns.git
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Anurag Agarwal
01e489c77b
* Reduces checkstyle errors in dao * Reduces checkstyle errors in data-bus * Reduces checkstyle errors in data-locality * Reduces checkstyle errors in data-mapper * Reduces checkstyle errors in data-transfer-object * Reduces checkstyle errors in decorator
83 lines
3.3 KiB
Java
83 lines
3.3 KiB
Java
/*
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* The MIT License
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* Copyright © 2014-2019 Ilkka Seppälä
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package com.iluwatar.datatransfer;
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import java.util.ArrayList;
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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 CustomerClientApp}) as as customer details consumer i.e. client to
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* request for customer details to server.
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*
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* <p>CustomerResource ({@link CustomerResource}) act as server to serve customer information. And
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* The CustomerDto ({@link CustomerDto} is data transfer object to share customer information.
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*/
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public class CustomerClientApp {
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private static final Logger LOGGER = LoggerFactory.getLogger(CustomerClientApp.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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List<CustomerDto> customers = new ArrayList<>();
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CustomerDto customerOne = new CustomerDto("1", "Kelly", "Brown");
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CustomerDto customerTwo = new CustomerDto("2", "Alfonso", "Bass");
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customers.add(customerOne);
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customers.add(customerTwo);
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CustomerResource customerResource = new CustomerResource(customers);
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LOGGER.info("All customers:-");
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List<CustomerDto> allCustomers = customerResource.getAllCustomers();
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printCustomerDetails(allCustomers);
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LOGGER.info("----------------------------------------------------------");
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LOGGER.info("Deleting customer with id {1}");
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customerResource.delete(customerOne.getId());
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allCustomers = customerResource.getAllCustomers();
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printCustomerDetails(allCustomers);
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LOGGER.info("----------------------------------------------------------");
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LOGGER.info("Adding customer three}");
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CustomerDto customerThree = new CustomerDto("3", "Lynda", "Blair");
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customerResource.save(customerThree);
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allCustomers = customerResource.getAllCustomers();
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printCustomerDetails(allCustomers);
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}
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private static void printCustomerDetails(List<CustomerDto> allCustomers) {
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allCustomers.forEach(customer -> LOGGER.info(customer.getFirstName()));
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}
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}
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