2 * Copyright (C) 2001, 2002 The Mir-coders group
4 * This file is part of Mir.
6 * Mir is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Mir is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with any library licensed under the Apache Software License,
22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
23 * (or with modified versions of the above that use the same license as the above),
24 * and distribute linked combinations including the two. You must obey the
25 * GNU General Public License in all respects for all of the code used other than
26 * the above mentioned libraries. If you modify this file, you may extend this
27 * exception to your version of the file, but you are not obligated to do so.
28 * If you do not wish to do so, delete this exception statement from your version.
32 import java.text.SimpleDateFormat;
33 import java.util.Date;
34 import java.util.List;
35 import java.util.TimeZone;
37 import mir.generator.Generator;
38 import mir.generator.GeneratorExc;
39 import mir.generator.GeneratorFailure;
41 public class GeneratorDateTimeFunctions {
42 private GeneratorDateTimeFunctions() {
45 public static class FormatDateFunction implements Generator.Function {
46 private String defaultTimezone;
48 public FormatDateFunction(String aDefaultTimeZone) {
49 defaultTimezone = aDefaultTimeZone;
52 public Object perform(List aParameters) throws GeneratorExc, GeneratorFailure {
53 if (aParameters.size()<2 || aParameters.size()>3) {
54 throw new GeneratorExc("dateFormatFunction <date> <format> [<timezone>]: 2 or 3 parameters expected");
57 if (!(aParameters.get(0) instanceof Date) || !(aParameters.get(1) instanceof String) ||
58 (aParameters.size() > 2 && !(aParameters.get(2) instanceof String))) {
59 throw new GeneratorExc("dateFormatFunction <date> <format> [<timezone>]: type mismatch");
62 Date date = (Date) aParameters.get(0);
63 SimpleDateFormat dateFormat = new SimpleDateFormat( (String) (aParameters.get(1)));
65 String timezoneString = defaultTimezone;
66 if (aParameters.size()>2) {
67 timezoneString = (String) aParameters.get(2);
70 TimeZone timezone = TimeZone.getTimeZone(timezoneString);
72 if (timezone == null) {
73 timezone = TimeZone.getDefault();
76 dateFormat.setTimeZone(timezone);
78 return dateFormat.format(date);
83 public static class DateTimeFunctions {
84 private String defaultTimezone;
85 private Generator.Function formatDate;
87 public DateTimeFunctions(String aDefaultTimezone) {
88 defaultTimezone = aDefaultTimezone;
91 public Generator.Function getFormatDate() {
92 if (formatDate == null) {
93 formatDate = new FormatDateFunction(defaultTimezone);