Ant example source code file (MultipleChoiceInputRequest.java)

This example Ant source code file (MultipleChoiceInputRequest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Ant tags/keywords

illegalargumentexception, illegalargumentexception, inputrequest, inputrequest, multiplechoiceinputrequest, multiplechoiceinputrequest, util, vector, vector

The MultipleChoiceInputRequest.java source code

/*
 *  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.tools.ant.input;

import java.util.Vector;

/**
 * Encapsulates an input request.
 *
 * @since Ant 1.5
 */
public class MultipleChoiceInputRequest extends InputRequest {
    private Vector choices = new Vector();

    /**
     * @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, Vector choices) {
        super(prompt);
        if (choices == null) {
            throw new IllegalArgumentException("choices must not be null");
        }
        this.choices = choices;
    }

    /**
     * @return The possible values.
     */
    public Vector getChoices() {
        return choices;
    }

    /**
     * @return true if the input is one of the allowed values.
     */
    public boolean isInputValid() {
        return choices.contains(getInput()) || ("".equals(getInput()) && getDefaultValue() != null);
    }
}