54 lines
1.9 KiB
Java
54 lines
1.9 KiB
Java
/*
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* The MIT License
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* Copyright © 2014-2021 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.front.controller;
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/**
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* FrontController is the handler class that takes in all the requests and renders the correct
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* response.
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*/
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public class FrontController {
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public void handleRequest(String request) {
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var command = getCommand(request);
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command.process();
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}
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private Command getCommand(String request) {
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var commandClass = getCommandClass(request);
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try {
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return (Command) commandClass.newInstance();
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} catch (Exception e) {
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throw new ApplicationException(e);
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}
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}
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private static Class<?> getCommandClass(String request) {
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try {
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return Class.forName("com.iluwatar.front.controller." + request + "Command");
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} catch (ClassNotFoundException e) {
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return UnknownCommand.class;
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}
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}
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}
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