| /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| ~ Licensed to the Apache Software Foundation (ASF) under one |
| ~ or more contributor license agreements. See the NOTICE file |
| ~ distributed with this work for additional information |
| ~ regarding copyright ownership. The ASF licenses this file |
| ~ to you under the Apache License, Version 2.0 (the |
| ~ "License"); you may not use this file except in compliance |
| ~ with the License. You may obtain a copy of the License at |
| ~ |
| ~ http://www.apache.org/licenses/LICENSE-2.0 |
| ~ |
| ~ Unless required by applicable law or agreed to in writing, |
| ~ software distributed under the License is distributed on an |
| ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| ~ KIND, either express or implied. See the License for the |
| ~ specific language governing permissions and limitations |
| ~ under the License. |
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/ |
| package org.apache.sling.cli.impl; |
| |
| import java.io.Console; |
| import java.util.Arrays; |
| import java.util.LinkedHashSet; |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class UserInput { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(UserInput.class); |
| private static final InputOption[] YES_NO = new InputOption[]{InputOption.YES, InputOption.NO}; |
| |
| public static InputOption yesNo(String question, InputOption defaultOption) { |
| LOGGER.info(question); |
| Set<InputOption> answers = new LinkedHashSet<>(Arrays.asList(YES_NO)); |
| String choice = |
| answers.stream().map(InputOption::toString).collect(Collectors.joining("/")) + "? [" + defaultOption.toString() + |
| "]: "; |
| while (true) { |
| System.out.print(choice); |
| Console console = System.console(); |
| if (console != null) { |
| String answerMnemonic = console.readLine(); |
| if ("".equals(answerMnemonic)) { |
| return defaultOption; |
| } |
| for (InputOption o : YES_NO) { |
| if (o.getMnemonic().equals(answerMnemonic)) { |
| return o; |
| } |
| } |
| } else { |
| throw new IllegalStateException("System console unavailable."); |
| } |
| } |
| } |
| |
| } |