58 lines
2.4 KiB
Java
58 lines
2.4 KiB
Java
/**
|
|
* The MIT License
|
|
* Copyright (c) 2014 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 web site.
|
|
* <p>
|
|
* The Front Controller pattern consolidates request handling through a single handler object (
|
|
* {@link FrontController}). This object can carry out the common the behavior such as
|
|
* authorization, request logging and routing requests to corresponding views.
|
|
* <p>
|
|
* Typically the requests are mapped to command objects ({@link Command}) which then display the
|
|
* correct view ({@link View}).
|
|
* <p>
|
|
* 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) {
|
|
FrontController controller = new FrontController();
|
|
controller.handleRequest("Archer");
|
|
controller.handleRequest("Catapult");
|
|
controller.handleRequest("foobar");
|
|
}
|
|
}
|