2 * Copyright (C) 2001-2006 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 * and distribute linked combinations including the two. You must obey the
23 * GNU General Public License in all respects for all of the code used other than
24 * the above mentioned libraries. If you modify this file, you may extend this
25 * exception to your version of the file, but you are not obligated to do so.
26 * If you do not wish to do so, delete this exception statement from your version.
30 import mir.generator.Generator;
31 import mir.generator.GeneratorExc;
32 import mir.generator.GeneratorFailure;
34 import java.text.SimpleDateFormat;
35 import java.util.Date;
36 import java.util.List;
37 import java.util.TimeZone;
39 public class GeneratorDateTimeFunctions {
40 private GeneratorDateTimeFunctions() {
43 public static class FormatDateFunction implements Generator.Function {
44 private String defaultTimezone;
46 public FormatDateFunction(String aDefaultTimeZone) {
47 defaultTimezone = aDefaultTimeZone;
50 public Object perform(List aParameters) throws GeneratorExc, GeneratorFailure {
51 if (aParameters.size()<2 || aParameters.size()>3) {
52 throw new GeneratorExc("dateFormatFunction <date> <format> [<timezone>]: 2 or 3 parameters expected");
55 if (!(aParameters.get(0) instanceof Date) || !(aParameters.get(1) instanceof String) ||
56 (aParameters.size() > 2 && !(aParameters.get(2) instanceof String))) {
57 throw new GeneratorExc("dateFormatFunction <date> <format> [<timezone>]: type mismatch");
60 Date date = (Date) aParameters.get(0);
61 SimpleDateFormat dateFormat = new SimpleDateFormat( (String) (aParameters.get(1)));
63 String timezoneString = defaultTimezone;
64 if (aParameters.size()>2) {
65 timezoneString = (String) aParameters.get(2);
68 TimeZone timezone = TimeZone.getTimeZone(timezoneString);
70 if (timezone == null) {
71 timezone = TimeZone.getDefault();
74 dateFormat.setTimeZone(timezone);
76 return dateFormat.format(date);
81 public static class DateTimeFunctions {
82 private String defaultTimezone;
83 private Generator.Function formatDate;
85 public DateTimeFunctions(String aDefaultTimezone) {
86 defaultTimezone = aDefaultTimezone;
89 public Generator.Function getFormatDate() {
90 if (formatDate == null) {
91 formatDate = new FormatDateFunction(defaultTimezone);