/* * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt). * * The MIT License * Copyright © 2014-2022 Ilkka Seppälä * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package com.iluwatar.front.controller; /** * The Front Controller is a presentation tier pattern. Essentially, it defines a controller that * handles all requests for a website. * *

The Front Controller pattern consolidates request handling through a single handler object ( * {@link FrontController}). This object can carry out common behavior such as authorization, * request logging and routing requests to corresponding views. * *

Typically, the requests are mapped to command objects ({@link Command}) which then display the * correct view ({@link View}). * *

In this example we have implemented two views: {@link ArcherView} and {@link CatapultView}. * These are displayed by sending correct request to the {@link FrontController} object. For * example, the {@link ArcherView} gets displayed when {@link FrontController} receives request * "Archer". When the request is unknown, we display the error view ({@link ErrorView}). */ public class App { /** * Program entry point. * * @param args command line args */ public static void main(String[] args) { var controller = new FrontController(); controller.handleRequest("Archer"); controller.handleRequest("Catapult"); controller.handleRequest("foobar"); } }