| /* |
| * 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.guacamole.form; |
| |
| import java.text.DateFormat; |
| import java.text.ParseException; |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| |
| /** |
| * Represents a date field. The field may contain only date values which |
| * conform to a standard pattern, defined by DateField.FORMAT. |
| */ |
| public class DateField extends Field { |
| |
| /** |
| * The date format used by date fields, compatible with SimpleDateFormat. |
| */ |
| public static final String FORMAT = "yyyy-MM-dd"; |
| |
| /** |
| * Creates a new DateField with the given name. |
| * |
| * @param name |
| * The unique name to associate with this field. |
| */ |
| public DateField(String name) { |
| super(name, Field.Type.DATE); |
| } |
| |
| /** |
| * Converts the given date into a string which follows the format used by |
| * date fields. |
| * |
| * @param date |
| * The date value to format, which may be null. |
| * |
| * @return |
| * The formatted date, or null if the provided time was null. |
| */ |
| public static String format(Date date) { |
| DateFormat dateFormat = new SimpleDateFormat(DateField.FORMAT); |
| return date == null ? null : dateFormat.format(date); |
| } |
| |
| /** |
| * Parses the given string into a corresponding date. The string must |
| * follow the standard format used by date fields, as defined by FORMAT |
| * and as would be produced by format(). |
| * |
| * @param dateString |
| * The date string to parse, which may be null. |
| * |
| * @return |
| * The date corresponding to the given date string, or null if the |
| * provided date string was null or blank. |
| * |
| * @throws ParseException |
| * If the given date string does not conform to the standard format |
| * used by date fields. |
| */ |
| public static Date parse(String dateString) |
| throws ParseException { |
| |
| // Return null if no date provided |
| if (dateString == null || dateString.isEmpty()) |
| return null; |
| |
| // Parse date according to format |
| DateFormat dateFormat = new SimpleDateFormat(DateField.FORMAT); |
| return dateFormat.parse(dateString); |
| |
| } |
| |
| } |