| /* |
| * 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 |
| * |
| * https://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.tools.ant.input; |
| |
| import java.util.Collection; |
| import java.util.LinkedHashSet; |
| import java.util.Vector; |
| |
| /** |
| * Encapsulates an input request. |
| * |
| * @since Ant 1.5 |
| */ |
| public class MultipleChoiceInputRequest extends InputRequest { |
| private final LinkedHashSet<String> choices; |
| |
| /** |
| * @param prompt The prompt to show to the user. Must not be null. |
| * @param choices holds all input values that are allowed. |
| * Must not be null. |
| * @deprecated Use {@link #MultipleChoiceInputRequest(String,Collection)} instead |
| */ |
| @Deprecated |
| public MultipleChoiceInputRequest(String prompt, Vector<String> choices) { |
| this(prompt, (Collection<String>) choices); |
| } |
| |
| /** |
| * @param prompt The prompt to show to the user. Must not be null. |
| * @param choices holds all input values that are allowed. |
| * Must not be null. |
| */ |
| public MultipleChoiceInputRequest(String prompt, Collection<String> choices) { |
| super(prompt); |
| if (choices == null) { |
| throw new IllegalArgumentException("choices must not be null"); |
| } |
| this.choices = new LinkedHashSet<>(choices); |
| } |
| |
| /** |
| * @return The possible values. |
| */ |
| public Vector<String> getChoices() { |
| return new Vector<>(choices); |
| } |
| |
| /** |
| * @return true if the input is one of the allowed values. |
| */ |
| @Override |
| public boolean isInputValid() { |
| return choices.contains(getInput()) |
| || (getInput().isEmpty() && getDefaultValue() != null); |
| } |
| } |