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1
10 package org.mmbase.util;
11 import org.mmbase.util.dateparser.*;
12 import java.util.*;
13
14
26 public class DynamicDate extends Date {
27
28
29
35 public static Date getInstance(final String  format) throws ParseException {
36 if (format.equals("null")) return null;
37 DateParser parser = new DateParser(new java.io.StringReader (format));
38 try {
39 parser.start();
40 if (parser.dynamic()) {
41 return new DynamicDate(format);
42 } else {
43 return parser.toDate();
44 }
45 } catch (ParseException pe) {
46 ParseException p = new ParseException("In " + format + " " + pe.getMessage());
47 p.initCause(pe);
48 throw p;
49 }
50
51 }
52
53
57 public static Date eval(final Date date) {
58 if (date instanceof DynamicDate) {
59 return ((DynamicDate) date).evalDate();
60 } else {
61 return date;
62 }
63 }
64
65
68 protected final String date;
69
70 protected DynamicDate(String d) {
71 date = d;
72 }
73
74 public String getFormat() {
75 return date;
76 }
77
78
81 protected Date evalDate() {
82 DateParser parser = new DateParser(new java.io.StringReader (date));
83 try {
84 parser.start();
85 return parser.toDate();
86 } catch (org.mmbase.util.dateparser.ParseException pe) {
87 return new Date();
88 }
89 }
90
91
92
94 public boolean after(Date when) {
95 return evalDate().after(when);
96 }
97
98 public boolean before(Date when) {
99 return evalDate().before(when);
100 }
101
102 public Object clone() {
103 try {
104 return getInstance(date);
105 } catch (org.mmbase.util.dateparser.ParseException pe) {
106 return new Date();
107 }
108 }
109 public int compareTo(Date anotherDate) {
110 return evalDate().compareTo(anotherDate);
111 }
112
113 public boolean equals(Object obj) {
114 if (obj instanceof DynamicDate) {
115 return date.equals(((DynamicDate)obj).date);
116 } else {
117 return false;
118 }
119 }
120 public int getDate() {
121 return evalDate().getDate();
122 }
123 public int getDay() {
124 return evalDate().getDay();
125 }
126 public int getHours() {
127 return evalDate().getHours();
128 }
129 public int getMinutes() {
130 return evalDate().getMinutes();
131 }
132 public int getMonth() {
133 return evalDate().getMonth();
134 }
135
136 public int getSeconds() {
137 return evalDate().getSeconds();
138 }
139 public long getTime() {
140 return evalDate().getTime();
141 }
142 public int getTimezoneOffset() {
143 return evalDate().getTimezoneOffset();
144 }
145 public int getYear() {
146 return evalDate().getYear();
147 }
148 public int hashCode() {
149 return date.hashCode();
150 }
151 public void setDate(int date) {
152 throw new UnsupportedOperationException ("Cannot set date in dynamic date");
153 }
154 public void setHours(int hours) {
155 throw new UnsupportedOperationException ("Cannot set date in dynamic date");
156 }
157 public void setMinutes(int minutes) {
158 throw new UnsupportedOperationException ("Cannot set date in dynamic date");
159 }
160 public void setMonth(int month) {
161 throw new UnsupportedOperationException ("Cannot set date in dynamic date");
162 }
163
164 public void setSeconds(int seconds) {
165 throw new UnsupportedOperationException ("Cannot set date in dynamic date");
166 }
167 public void setTime(long time) {
168 throw new UnsupportedOperationException ("Cannot set date in dynamic date");
169 }
170 public void setYear(int year) {
171 throw new UnsupportedOperationException ("Cannot set date in dynamic date");
172 }
173 public String toGMTString() {
174 return evalDate().toGMTString();
175 }
176 public String toLocaleString() {
177 return evalDate().toLocaleString();
178 }
179
180 public String toString() {
181 return date + ": " + evalDate().toString();
182 }
183
184 public static String [] getDemo() {
185 return new String [] {
186 "0", "10000", "-10000", "+1000", "1973-05-03", "2006-05-09", "-3-12-25", "2000-01-01 16:00", "TZUTC 2001-01-01 16:00","today 12:34:56.789",
189 "now", "today", "tomorrow", "now + 10 minute", "today + 5 day",
190 "now this year", "next august", "today + 6 month next august", "tomonth", "borreltijd", "today + 5 dayish", "yesteryear", "mondayish",
191 "duration + 5 minute", "duration + 100 year",
192 "TZUTC today noon", "TZEurope/Amsterdam today noon", "TZUTC today", "TZEurope/Amsterdam today",
193 "TZ UTC today noon", "TZ Europe/Amsterdam today noon", "TZ UTC today", "TZ Europe/Amsterdam today",
194 "TZ Europe/Amsterdam -1000",
195 "today 6 oclock", "today 23 oclock", "today 43 oclock",
196 "tosecond", "tominute", "tohour", "today", "previous monday", "tomonth", "toyear", "tocentury", "tocentury_pedantic", "toera",
197 "now this second", "now this minute", "now this hour", "now this day", "today previous monday", "now this month", "now this year", "now this century", "now this era",
198 "now - 15 year this century", "now - 20 year this century_pedantic", "today + 2 century", "toera - 1 minute",
199 "this july", "previous july", "next july", "this sunday", "previous sunday", "next sunday",
200 "2009-W01-01", "2009-W53-7", "2006-123"
201 };
202 }
203
204
205 public static void main(String argv[]) throws java.text.ParseException , ParseException {
206
207 java.text.DateFormat formatter = new java.text.SimpleDateFormat ("GGGG yyyy-MM-dd HH:mm:ss.SSS zzz E");
210 if (argv.length == 0) {
211 String [] demo = getDemo();
212 for (int i = 0; i < demo.length; i++) {
213 try {
214 Date d1 = getInstance(demo[i]);
215 System.out.print(formatter.format(d1) + "\t");
216 } catch (Exception e) {
217 System.out.println(e.getMessage());
218 }
219 System.out.println(demo[i]);
220
221 }
222 System.out.println("This was demo, you can also call with an argument, to try it yourself");
223 System.out.println("Also try with different values for -Duser.timezone=");
224 } else {
225 Date d1 = getInstance(argv[0]);
226 System.out.println(formatter.format(d1) + " " + d1.getTime());
229 }
232 }
233
234 }
235
236
237
238 |
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