mirror of
https://github.com/tiennm99/java-design-patterns.git
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Ilkka Seppälä
0ca162a55c
* remove spring dep move junit, logging, mockito under dep mgmt * upgrade anti-corruption-layer deps * async method invocation * balking, bloc * bridge to bytecode * caching * callback - cqrs * component - health check * hexagonal - metadata mapping * rest of the patterns * remove checkstyle, take spotless into use
78 lines
3.6 KiB
Java
78 lines
3.6 KiB
Java
/*
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* This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
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*
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* The MIT License
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* Copyright © 2014-2022 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.hexagonal;
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import com.google.inject.Guice;
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import com.iluwatar.hexagonal.domain.LotteryAdministration;
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import com.iluwatar.hexagonal.domain.LotteryService;
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import com.iluwatar.hexagonal.module.LotteryTestingModule;
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import com.iluwatar.hexagonal.sampledata.SampleData;
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/**
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* Hexagonal Architecture pattern decouples the application core from the services it uses. This
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* allows the services to be plugged in and the application will run with or without the services.
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*
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* <p>The core logic, or business logic, of an application consists of the algorithms that are
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* essential to its purpose. They implement the use cases that are the heart of the application.
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* When you change them, you change the essence of the application.
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*
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* <p>The services are not essential. They can be replaced without changing the purpose of the
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* application. Examples: database access and other types of storage, user interface components,
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* e-mail and other communication components, hardware devices.
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*
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* <p>This example demonstrates Hexagonal Architecture with a lottery system. The application core
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* is separate from the services that drive it and from the services it uses.
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*
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* <p>The primary ports for the application are console interfaces {@link
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* com.iluwatar.hexagonal.administration.ConsoleAdministration} through which the lottery round is
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* initiated and run and {@link com.iluwatar.hexagonal.service.ConsoleLottery} that allows players
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* to submit lottery tickets for the draw.
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*
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* <p>The secondary ports that application core uses are{@link
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* com.iluwatar.hexagonal.banking.WireTransfers} which is a banking service, {@link
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* com.iluwatar.hexagonal.eventlog.LotteryEventLog} that delivers eventlog as lottery events occur
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* and {@link com.iluwatar.hexagonal.database.LotteryTicketRepository} that is the storage for the
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* lottery tickets.
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*/
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public class App {
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/** Program entry point. */
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public static void main(String[] args) {
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var injector = Guice.createInjector(new LotteryTestingModule());
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// start new lottery round
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var administration = injector.getInstance(LotteryAdministration.class);
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administration.resetLottery();
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// submit some lottery tickets
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var service = injector.getInstance(LotteryService.class);
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SampleData.submitTickets(service, 20);
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// perform lottery
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administration.performLottery();
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}
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}
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