1.1 --- a/src/net/fortuna/ical4j/model/CalendarDateFormatFactory.java Thu Feb 12 18:02:00 2015 +0100
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,420 +0,0 @@
1.4 -/**
1.5 - * Copyright (c) 2012, Ben Fortuna
1.6 - * All rights reserved.
1.7 - *
1.8 - * Redistribution and use in source and binary forms, with or without
1.9 - * modification, are permitted provided that the following conditions
1.10 - * are met:
1.11 - *
1.12 - * o Redistributions of source code must retain the above copyright
1.13 - * notice, this list of conditions and the following disclaimer.
1.14 - *
1.15 - * o Redistributions in binary form must reproduce the above copyright
1.16 - * notice, this list of conditions and the following disclaimer in the
1.17 - * documentation and/or other materials provided with the distribution.
1.18 - *
1.19 - * o Neither the name of Ben Fortuna nor the names of any other contributors
1.20 - * may be used to endorse or promote products derived from this software
1.21 - * without specific prior written permission.
1.22 - *
1.23 - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.24 - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.25 - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.26 - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
1.27 - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
1.28 - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
1.29 - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
1.30 - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
1.31 - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
1.32 - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
1.33 - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.34 - */
1.35 -package net.fortuna.ical4j.model;
1.36 -
1.37 -import java.text.FieldPosition;
1.38 -import java.text.NumberFormat;
1.39 -import java.text.ParsePosition;
1.40 -import java.text.SimpleDateFormat;
1.41 -import java.util.Date;
1.42 -import java.util.GregorianCalendar;
1.43 -import java.util.TimeZone;
1.44 -
1.45 -import org.apache.commons.logging.Log;
1.46 -import org.apache.commons.logging.LogFactory;
1.47 -
1.48 -/**
1.49 - * $Id$ [06-Apr-2004]
1.50 - *
1.51 - * Creates DateFormat objects optimized for common iCalendar date patterns.
1.52 - *
1.53 - * @author Dave Nault dnault@laszlosystems.com
1.54 - * @see #getInstance(String)
1.55 - */
1.56 -public final class CalendarDateFormatFactory {
1.57 - private static final Log LOG = LogFactory.getLog(CalendarDateFormatFactory.class);
1.58 -
1.59 - private static final String DATETIME_PATTERN = "yyyyMMdd'T'HHmmss";
1.60 - private static final String DATETIME_UTC_PATTERN = "yyyyMMdd'T'HHmmss'Z'";
1.61 - private static final String DATE_PATTERN = "yyyyMMdd";
1.62 - private static final String TIME_PATTERN = "HHmmss";
1.63 - private static final String TIME_UTC_PATTERN = "HHmmss'Z'";
1.64 -
1.65 - /**
1.66 - * Constructor made private to enforce static nature.
1.67 - */
1.68 - private CalendarDateFormatFactory() {
1.69 - }
1.70 -
1.71 - /**
1.72 - * Returns DateFormat objects optimized for common iCalendar date patterns. The DateFormats are *not* thread safe.
1.73 - * Attempts to get or set the Calendar or NumberFormat of an optimized DateFormat will result in an
1.74 - * UnsupportedOperation exception being thrown.
1.75 - *
1.76 - * @param pattern
1.77 - * a SimpleDateFormat-compatible pattern
1.78 - * @return an optimized DateFormat instance if possible, otherwise a normal SimpleDateFormat instance
1.79 - */
1.80 - public static java.text.DateFormat getInstance(String pattern) {
1.81 - java.text.DateFormat instance = null;
1.82 -
1.83 - // if (true) {
1.84 - // return new SimpleDateFormat(pattern);
1.85 - // }
1.86 -
1.87 - if (pattern.equals(DATETIME_PATTERN) || pattern.equals(DATETIME_UTC_PATTERN)) {
1.88 - instance = new DateTimeFormat(pattern);
1.89 - }
1.90 - else if (pattern.equals(DATE_PATTERN)) {
1.91 - instance = new DateFormat(pattern);
1.92 - }
1.93 - else if (pattern.equals(TIME_PATTERN) || pattern.equals(TIME_UTC_PATTERN)) {
1.94 - instance = new TimeFormat(pattern);
1.95 - }
1.96 - else {
1.97 - if (LOG.isDebugEnabled()) {
1.98 - LOG.debug("unexpected date format pattern: " + pattern);
1.99 - }
1.100 -
1.101 - instance = new SimpleDateFormat(pattern);
1.102 - }
1.103 - return instance;
1.104 - }
1.105 -
1.106 - private abstract static class CalendarDateFormat extends java.text.DateFormat {
1.107 - /**
1.108 - *
1.109 - */
1.110 - private static final long serialVersionUID = -4191402739860280205L;
1.111 -
1.112 - private static final java.util.TimeZone DEFAULT_TIME_ZONE = TimeZone.getDefault();
1.113 -
1.114 - private final String pattern;
1.115 -
1.116 - private boolean lenient = true;
1.117 -
1.118 - private java.util.TimeZone timeZone = DEFAULT_TIME_ZONE;
1.119 -
1.120 - public CalendarDateFormat(String pattern) {
1.121 - this.pattern = pattern;
1.122 - }
1.123 -
1.124 - public java.util.TimeZone getTimeZone() {
1.125 - return this.timeZone;
1.126 - }
1.127 -
1.128 - public void setTimeZone(java.util.TimeZone tz) {
1.129 - this.timeZone = tz;
1.130 - }
1.131 -
1.132 - public void setLenient(boolean lenient) {
1.133 - this.lenient = lenient;
1.134 - }
1.135 -
1.136 - public boolean isLenient() {
1.137 - return lenient;
1.138 - }
1.139 -
1.140 - public java.util.Calendar getCalendar() {
1.141 - throw new UnsupportedOperationException();
1.142 - }
1.143 -
1.144 - public void setCalendar(java.util.Calendar c) {
1.145 - throw new UnsupportedOperationException();
1.146 - }
1.147 -
1.148 - public NumberFormat getNumberFormat() {
1.149 - throw new UnsupportedOperationException();
1.150 - }
1.151 -
1.152 - public void setNumberFormat(NumberFormat n) {
1.153 - throw new UnsupportedOperationException();
1.154 - }
1.155 -
1.156 - public Object clone() {
1.157 - // don't call super.clone()
1.158 - final CalendarDateFormat f = (CalendarDateFormat) CalendarDateFormatFactory.getInstance(pattern);
1.159 - f.setTimeZone(getTimeZone());
1.160 - f.setLenient(isLenient());
1.161 - return f;
1.162 - }
1.163 -
1.164 - public boolean equals(Object o) {
1.165 - if (this == o) {
1.166 - return true;
1.167 - }
1.168 - if (o == null || getClass() != o.getClass()) {
1.169 - return false;
1.170 - }
1.171 - if (!super.equals(o)) {
1.172 - return false;
1.173 - }
1.174 -
1.175 - final CalendarDateFormat that = (CalendarDateFormat) o;
1.176 -
1.177 - if (lenient != that.lenient) {
1.178 - return false;
1.179 - }
1.180 - if (!pattern.equals(that.pattern)) {
1.181 - return false;
1.182 - }
1.183 - if (!timeZone.equals(that.timeZone)) {
1.184 - return false;
1.185 - }
1.186 -
1.187 - return true;
1.188 - }
1.189 -
1.190 - public int hashCode() {
1.191 - int result = super.hashCode();
1.192 - result = 31 * result + pattern.hashCode();
1.193 - result = 31 * result + (lenient ? 1 : 0);
1.194 - result = 31 * result + timeZone.hashCode();
1.195 - return result;
1.196 - }
1.197 - }
1.198 -
1.199 - /**
1.200 - * A custom date-time formatter.
1.201 - * Parses and formats these patterns:
1.202 - *
1.203 - * <pre>
1.204 - * yyyyMMdd'T'HHmmss
1.205 - * yyyyMMdd'T'HHmmss'Z'
1.206 - * </pre>
1.207 - */
1.208 - private static class DateTimeFormat extends CalendarDateFormat {
1.209 -
1.210 - /**
1.211 - *
1.212 - */
1.213 - private static final long serialVersionUID = 3005824302269636122L;
1.214 -
1.215 - final boolean patternEndsWithZ;
1.216 -
1.217 - public DateTimeFormat(String pattern) {
1.218 - super(pattern);
1.219 - patternEndsWithZ = pattern.endsWith("'Z'");
1.220 - }
1.221 -
1.222 - public StringBuffer format(Date date, StringBuffer toAppendTo, FieldPosition fieldPosition) {
1.223 - final java.util.Calendar cal = new GregorianCalendar(getTimeZone());
1.224 - cal.setTimeInMillis(date.getTime());
1.225 -
1.226 - appendPadded(toAppendTo, cal.get(GregorianCalendar.YEAR), 4);
1.227 - appendPadded(toAppendTo, cal.get(GregorianCalendar.MONTH) + 1, 2);
1.228 - appendPadded(toAppendTo, cal.get(GregorianCalendar.DAY_OF_MONTH), 2);
1.229 - toAppendTo.append("T");
1.230 -
1.231 - appendPadded(toAppendTo, cal.get(GregorianCalendar.HOUR_OF_DAY), 2);
1.232 - appendPadded(toAppendTo, cal.get(GregorianCalendar.MINUTE), 2);
1.233 - appendPadded(toAppendTo, cal.get(GregorianCalendar.SECOND), 2);
1.234 -
1.235 - if (patternEndsWithZ) {
1.236 - toAppendTo.append("Z");
1.237 - }
1.238 -
1.239 - return toAppendTo;
1.240 - }
1.241 -
1.242 - public Date parse(String source, ParsePosition pos) {
1.243 - // if lenient ignore superfluous input..
1.244 - if (patternEndsWithZ) {
1.245 - if (source.length() > DATETIME_UTC_PATTERN.length() && !isLenient()) {
1.246 - pos.setErrorIndex(DATETIME_UTC_PATTERN.length());
1.247 - return null;
1.248 - }
1.249 - } else if (source.length() > DATETIME_PATTERN.length() && !isLenient()) {
1.250 - pos.setErrorIndex(DATETIME_PATTERN.length());
1.251 - return null;
1.252 - }
1.253 -
1.254 - try {
1.255 - if (source.charAt(8) != 'T') {
1.256 - pos.setErrorIndex(8);
1.257 - return null;
1.258 - }
1.259 - if (patternEndsWithZ && source.charAt(15) != 'Z') {
1.260 - pos.setErrorIndex(15);
1.261 - return null;
1.262 - }
1.263 -
1.264 - final int year = Integer.parseInt(source.substring(0, 4));
1.265 - final int month = Integer.parseInt(source.substring(4, 6)) - 1;
1.266 - final int day = Integer.parseInt(source.substring(6, 8));
1.267 - final int hour = Integer.parseInt(source.substring(9, 11));
1.268 - final int minute = Integer.parseInt(source.substring(11, 13));
1.269 - final int second = Integer.parseInt(source.substring(13, 15));
1.270 -
1.271 - final Date d = makeCalendar(isLenient(), getTimeZone(),
1.272 - year, month, day, hour, minute, second).getTime();
1.273 - pos.setIndex(15);
1.274 - return d;
1.275 - } catch (Exception e) {
1.276 - return null;
1.277 - }
1.278 - }
1.279 - }
1.280 -
1.281 - /**
1.282 - * Custom date formatter.
1.283 - * Parses and formats this pattern:
1.284 - *
1.285 - * <pre>
1.286 - * yyyyMMdd
1.287 - * </pre>
1.288 - */
1.289 - private static class DateFormat extends CalendarDateFormat {
1.290 -
1.291 - /**
1.292 - *
1.293 - */
1.294 - private static final long serialVersionUID = -7626077667268431779L;
1.295 -
1.296 - public DateFormat(String pattern) {
1.297 - super(pattern);
1.298 - }
1.299 -
1.300 - public StringBuffer format(Date date, StringBuffer toAppendTo, FieldPosition fieldPosition) {
1.301 - final java.util.Calendar cal = java.util.Calendar.getInstance(getTimeZone());
1.302 - cal.setTimeInMillis(date.getTime());
1.303 -
1.304 - appendPadded(toAppendTo, cal.get(GregorianCalendar.YEAR), 4);
1.305 - appendPadded(toAppendTo, cal.get(GregorianCalendar.MONTH) + 1, 2);
1.306 - appendPadded(toAppendTo, cal.get(GregorianCalendar.DAY_OF_MONTH), 2);
1.307 -
1.308 - return toAppendTo;
1.309 - }
1.310 -
1.311 - public Date parse(String source, ParsePosition pos) {
1.312 - // if lenient ignore superfluous input..
1.313 - if (source.length() > DATE_PATTERN.length() && !isLenient()) {
1.314 - pos.setErrorIndex(DATE_PATTERN.length());
1.315 - return null;
1.316 - }
1.317 -
1.318 - try {
1.319 - final int year = Integer.parseInt(source.substring(0, 4));
1.320 - final int month = Integer.parseInt(source.substring(4, 6)) - 1;
1.321 - final int day = Integer.parseInt(source.substring(6, 8));
1.322 -
1.323 - final Date d = makeCalendar(isLenient(), getTimeZone(), year, month, day).getTime();
1.324 - pos.setIndex(8);
1.325 - return d;
1.326 - } catch (Exception e) {
1.327 - return null;
1.328 - }
1.329 - }
1.330 - }
1.331 -
1.332 - /**
1.333 - * Custom time formatter.
1.334 - * Parses and formats these patterns:
1.335 - *
1.336 - * <pre>
1.337 - * HHmmss
1.338 - * HHmmss'Z'
1.339 - * </pre>
1.340 - */
1.341 - private static class TimeFormat extends CalendarDateFormat {
1.342 -
1.343 - /**
1.344 - *
1.345 - */
1.346 - private static final long serialVersionUID = -1367114409994225425L;
1.347 -
1.348 - final boolean patternEndsWithZ;
1.349 -
1.350 - public TimeFormat(String pattern) {
1.351 - super(pattern);
1.352 - patternEndsWithZ = pattern.endsWith("'Z'");
1.353 - }
1.354 -
1.355 - public StringBuffer format(Date date, StringBuffer toAppendTo, FieldPosition fieldPosition) {
1.356 - final java.util.Calendar cal = new GregorianCalendar(getTimeZone());
1.357 - cal.setTimeInMillis(date.getTime());
1.358 -
1.359 - appendPadded(toAppendTo, cal.get(GregorianCalendar.HOUR_OF_DAY), 2);
1.360 - appendPadded(toAppendTo, cal.get(GregorianCalendar.MINUTE), 2);
1.361 - appendPadded(toAppendTo, cal.get(GregorianCalendar.SECOND), 2);
1.362 -
1.363 - if (patternEndsWithZ) {
1.364 - toAppendTo.append("Z");
1.365 - }
1.366 -
1.367 - return toAppendTo;
1.368 - }
1.369 -
1.370 - public Date parse(String source, ParsePosition pos) {
1.371 - // if lenient ignore superfluous input..
1.372 - if (patternEndsWithZ) {
1.373 - if (source.length() > TIME_UTC_PATTERN.length() && !isLenient()) {
1.374 - pos.setErrorIndex(TIME_UTC_PATTERN.length());
1.375 - return null;
1.376 - }
1.377 - } else if (source.length() > TIME_PATTERN.length() && !isLenient()) {
1.378 - pos.setErrorIndex(TIME_PATTERN.length());
1.379 - return null;
1.380 - }
1.381 -
1.382 - try {
1.383 - if (patternEndsWithZ && source.charAt(6) != 'Z') {
1.384 - pos.setErrorIndex(6);
1.385 - return null;
1.386 - }
1.387 -
1.388 - final int hour = Integer.parseInt(source.substring(0, 2));
1.389 - final int minute = Integer.parseInt(source.substring(2, 4));
1.390 - final int second = Integer.parseInt(source.substring(4, 6));
1.391 -
1.392 - final Date d = makeCalendar(isLenient(), getTimeZone(), 1970, 0, 1, hour, minute, second).getTime();
1.393 - pos.setIndex(6);
1.394 - return d;
1.395 - } catch (Exception e) {
1.396 - return null;
1.397 - }
1.398 - }
1.399 - }
1.400 -
1.401 - private static java.util.Calendar makeCalendar(boolean lenient, java.util.TimeZone timeZone, int year,
1.402 - int zeroBasedMonth, int day, int hour, int minutes, int seconds) {
1.403 - final java.util.Calendar cal = new GregorianCalendar(timeZone);
1.404 - cal.setLenient(lenient);
1.405 - cal.set(year, zeroBasedMonth, day, hour, minutes, seconds);
1.406 - cal.set(java.util.Calendar.MILLISECOND, 0);
1.407 - return cal;
1.408 - }
1.409 -
1.410 - private static java.util.Calendar makeCalendar(boolean lenient, TimeZone timeZone, int year, int month, int day) {
1.411 - return makeCalendar(lenient, timeZone, year, month, day, 0, 0, 0);
1.412 - }
1.413 -
1.414 - private static void appendPadded(StringBuffer toAppendTo, int value, int fieldWidth) {
1.415 - final String s = Integer.toString(value);
1.416 - final int max = fieldWidth - s.length();
1.417 - for (int i = 0; i < max; i++) {
1.418 - toAppendTo.append("0");
1.419 - }
1.420 - toAppendTo.append(s);
1.421 - }
1.422 -
1.423 -}
