Coverage Report - org.apache.commons.lang3.time.FastDateFormat
 
Classes in this File Line Coverage Branch Coverage Complexity
FastDateFormat
86%
39/45
100%
2/2
1,053
FastDateFormat$1
100%
2/2
N/A
1,053
 
 1  
 /*
 2  
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3  
  * contributor license agreements.  See the NOTICE file distributed with
 4  
  * this work for additional information regarding copyright ownership.
 5  
  * The ASF licenses this file to You under the Apache License, Version 2.0
 6  
  * (the "License"); you may not use this file except in compliance with
 7  
  * the License.  You may obtain a copy of the License at
 8  
  *
 9  
  *      http://www.apache.org/licenses/LICENSE-2.0
 10  
  *
 11  
  * Unless required by applicable law or agreed to in writing, software
 12  
  * distributed under the License is distributed on an "AS IS" BASIS,
 13  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  * See the License for the specific language governing permissions and
 15  
  * limitations under the License.
 16  
  */
 17  
 package org.apache.commons.lang3.time;
 18  
 
 19  
 import java.text.DateFormat;
 20  
 import java.text.FieldPosition;
 21  
 import java.text.Format;
 22  
 import java.text.ParseException;
 23  
 import java.text.ParsePosition;
 24  
 import java.util.Calendar;
 25  
 import java.util.Date;
 26  
 import java.util.Locale;
 27  
 import java.util.TimeZone;
 28  
 
 29  
 /**
 30  
  * <p>FastDateFormat is a fast and thread-safe version of
 31  
  * {@link java.text.SimpleDateFormat}.</p>
 32  
  *
 33  
  * <p>To obtain an instance of FastDateFormat, use one of the static factory methods: 
 34  
  * {@link #getInstance(String, TimeZone, Locale)}, {@link #getDateInstance(int, TimeZone, Locale)}, 
 35  
  * {@link #getTimeInstance(int, TimeZone, Locale)}, or {@link #getDateTimeInstance(int, int, TimeZone, Locale)} 
 36  
  * </p>
 37  
  * 
 38  
  * <p>Since FastDateFormat is thread safe, you can use a static member instance:</p>
 39  
  * <code>
 40  
  *   private static final FastDateFormat DATE_FORMATTER = FastDateFormat.getDateTimeInstance(FastDateFormat.LONG, FastDateFormat.SHORT);
 41  
  * </code>
 42  
  * 
 43  
  * <p>This class can be used as a direct replacement to
 44  
  * {@code SimpleDateFormat} in most formatting and parsing situations.
 45  
  * This class is especially useful in multi-threaded server environments.
 46  
  * {@code SimpleDateFormat} is not thread-safe in any JDK version,
 47  
  * nor will it be as Sun have closed the bug/RFE.
 48  
  * </p>
 49  
  *
 50  
  * <p>All patterns are compatible with
 51  
  * SimpleDateFormat (except time zones and some year patterns - see below).</p>
 52  
  *
 53  
  * <p>Since 3.2, FastDateFormat supports parsing as well as printing.</p>
 54  
  *
 55  
  * <p>Java 1.4 introduced a new pattern letter, {@code 'Z'}, to represent
 56  
  * time zones in RFC822 format (eg. {@code +0800} or {@code -1100}).
 57  
  * This pattern letter can be used here (on all JDK versions).</p>
 58  
  *
 59  
  * <p>In addition, the pattern {@code 'ZZ'} has been made to represent
 60  
  * ISO 8601 full format time zones (eg. {@code +08:00} or {@code -11:00}).
 61  
  * This introduces a minor incompatibility with Java 1.4, but at a gain of
 62  
  * useful functionality.</p>
 63  
  *
 64  
  * <p>Javadoc cites for the year pattern: <i>For formatting, if the number of
 65  
  * pattern letters is 2, the year is truncated to 2 digits; otherwise it is
 66  
  * interpreted as a number.</i> Starting with Java 1.7 a pattern of 'Y' or
 67  
  * 'YYY' will be formatted as '2003', while it was '03' in former Java
 68  
  * versions. FastDateFormat implements the behavior of Java 7.</p>
 69  
  *
 70  
  * @since 2.0
 71  
  * @version $Id: FastDateFormat.java 1591488 2014-04-30 21:49:35Z ggregory $
 72  
  */
 73  
 public class FastDateFormat extends Format implements DateParser, DatePrinter {
 74  
     /**
 75  
      * Required for serialization support.
 76  
      *
 77  
      * @see java.io.Serializable
 78  
      */
 79  
     private static final long serialVersionUID = 2L;
 80  
 
 81  
     /**
 82  
      * FULL locale dependent date or time style.
 83  
      */
 84  
     public static final int FULL = DateFormat.FULL;
 85  
     /**
 86  
      * LONG locale dependent date or time style.
 87  
      */
 88  
     public static final int LONG = DateFormat.LONG;
 89  
     /**
 90  
      * MEDIUM locale dependent date or time style.
 91  
      */
 92  
     public static final int MEDIUM = DateFormat.MEDIUM;
 93  
     /**
 94  
      * SHORT locale dependent date or time style.
 95  
      */
 96  
     public static final int SHORT = DateFormat.SHORT;
 97  
 
 98  744
     private static final FormatCache<FastDateFormat> cache= new FormatCache<FastDateFormat>() {
 99  
         @Override
 100  
         protected FastDateFormat createInstance(final String pattern, final TimeZone timeZone, final Locale locale) {
 101  743
             return new FastDateFormat(pattern, timeZone, locale);
 102  
         }
 103  
     };
 104  
 
 105  
     private final FastDatePrinter printer;
 106  
     private final FastDateParser parser;
 107  
 
 108  
     //-----------------------------------------------------------------------
 109  
     /**
 110  
      * <p>Gets a formatter instance using the default pattern in the
 111  
      * default locale.</p>
 112  
      *
 113  
      * @return a date/time formatter
 114  
      */
 115  
     public static FastDateFormat getInstance() {
 116  3
         return cache.getInstance();
 117  
     }
 118  
 
 119  
     /**
 120  
      * <p>Gets a formatter instance using the specified pattern in the
 121  
      * default locale.</p>
 122  
      *
 123  
      * @param pattern  {@link java.text.SimpleDateFormat} compatible
 124  
      *  pattern
 125  
      * @return a pattern based date/time formatter
 126  
      * @throws IllegalArgumentException if pattern is invalid
 127  
      */
 128  
     public static FastDateFormat getInstance(final String pattern) {
 129  646
         return cache.getInstance(pattern, null, null);
 130  
     }
 131  
 
 132  
     /**
 133  
      * <p>Gets a formatter instance using the specified pattern and
 134  
      * time zone.</p>
 135  
      *
 136  
      * @param pattern  {@link java.text.SimpleDateFormat} compatible
 137  
      *  pattern
 138  
      * @param timeZone  optional time zone, overrides time zone of
 139  
      *  formatted date
 140  
      * @return a pattern based date/time formatter
 141  
      * @throws IllegalArgumentException if pattern is invalid
 142  
      */
 143  
     public static FastDateFormat getInstance(final String pattern, final TimeZone timeZone) {
 144  4
         return cache.getInstance(pattern, timeZone, null);
 145  
     }
 146  
 
 147  
     /**
 148  
      * <p>Gets a formatter instance using the specified pattern and
 149  
      * locale.</p>
 150  
      *
 151  
      * @param pattern  {@link java.text.SimpleDateFormat} compatible
 152  
      *  pattern
 153  
      * @param locale  optional locale, overrides system locale
 154  
      * @return a pattern based date/time formatter
 155  
      * @throws IllegalArgumentException if pattern is invalid
 156  
      */
 157  
     public static FastDateFormat getInstance(final String pattern, final Locale locale) {
 158  4
         return cache.getInstance(pattern, null, locale);
 159  
     }
 160  
 
 161  
     /**
 162  
      * <p>Gets a formatter instance using the specified pattern, time zone
 163  
      * and locale.</p>
 164  
      *
 165  
      * @param pattern  {@link java.text.SimpleDateFormat} compatible
 166  
      *  pattern
 167  
      * @param timeZone  optional time zone, overrides time zone of
 168  
      *  formatted date
 169  
      * @param locale  optional locale, overrides system locale
 170  
      * @return a pattern based date/time formatter
 171  
      * @throws IllegalArgumentException if pattern is invalid
 172  
      *  or {@code null}
 173  
      */
 174  
     public static FastDateFormat getInstance(final String pattern, final TimeZone timeZone, final Locale locale) {
 175  1364
         return cache.getInstance(pattern, timeZone, locale);
 176  
     }
 177  
 
 178  
     //-----------------------------------------------------------------------
 179  
     /**
 180  
      * <p>Gets a date formatter instance using the specified style in the
 181  
      * default time zone and locale.</p>
 182  
      *
 183  
      * @param style  date style: FULL, LONG, MEDIUM, or SHORT
 184  
      * @return a localized standard date formatter
 185  
      * @throws IllegalArgumentException if the Locale has no date
 186  
      *  pattern defined
 187  
      * @since 2.1
 188  
      */
 189  
     public static FastDateFormat getDateInstance(final int style) {
 190  3
         return cache.getDateInstance(style, null, null);
 191  
     }
 192  
 
 193  
     /**
 194  
      * <p>Gets a date formatter instance using the specified style and
 195  
      * locale in the default time zone.</p>
 196  
      *
 197  
      * @param style  date style: FULL, LONG, MEDIUM, or SHORT
 198  
      * @param locale  optional locale, overrides system locale
 199  
      * @return a localized standard date formatter
 200  
      * @throws IllegalArgumentException if the Locale has no date
 201  
      *  pattern defined
 202  
      * @since 2.1
 203  
      */
 204  
     public static FastDateFormat getDateInstance(final int style, final Locale locale) {
 205  2
         return cache.getDateInstance(style, null, locale);
 206  
     }
 207  
 
 208  
     /**
 209  
      * <p>Gets a date formatter instance using the specified style and
 210  
      * time zone in the default locale.</p>
 211  
      *
 212  
      * @param style  date style: FULL, LONG, MEDIUM, or SHORT
 213  
      * @param timeZone  optional time zone, overrides time zone of
 214  
      *  formatted date
 215  
      * @return a localized standard date formatter
 216  
      * @throws IllegalArgumentException if the Locale has no date
 217  
      *  pattern defined
 218  
      * @since 2.1
 219  
      */
 220  
     public static FastDateFormat getDateInstance(final int style, final TimeZone timeZone) {
 221  1
         return cache.getDateInstance(style, timeZone, null);
 222  
     }
 223  
 
 224  
     /**
 225  
      * <p>Gets a date formatter instance using the specified style, time
 226  
      * zone and locale.</p>
 227  
      *
 228  
      * @param style  date style: FULL, LONG, MEDIUM, or SHORT
 229  
      * @param timeZone  optional time zone, overrides time zone of
 230  
      *  formatted date
 231  
      * @param locale  optional locale, overrides system locale
 232  
      * @return a localized standard date formatter
 233  
      * @throws IllegalArgumentException if the Locale has no date
 234  
      *  pattern defined
 235  
      */
 236  
     public static FastDateFormat getDateInstance(final int style, final TimeZone timeZone, final Locale locale) {
 237  3
         return cache.getDateInstance(style, timeZone, locale);
 238  
     }
 239  
 
 240  
     //-----------------------------------------------------------------------
 241  
     /**
 242  
      * <p>Gets a time formatter instance using the specified style in the
 243  
      * default time zone and locale.</p>
 244  
      *
 245  
      * @param style  time style: FULL, LONG, MEDIUM, or SHORT
 246  
      * @return a localized standard time formatter
 247  
      * @throws IllegalArgumentException if the Locale has no time
 248  
      *  pattern defined
 249  
      * @since 2.1
 250  
      */
 251  
     public static FastDateFormat getTimeInstance(final int style) {
 252  1
         return cache.getTimeInstance(style, null, null);
 253  
     }
 254  
 
 255  
     /**
 256  
      * <p>Gets a time formatter instance using the specified style and
 257  
      * locale in the default time zone.</p>
 258  
      *
 259  
      * @param style  time style: FULL, LONG, MEDIUM, or SHORT
 260  
      * @param locale  optional locale, overrides system locale
 261  
      * @return a localized standard time formatter
 262  
      * @throws IllegalArgumentException if the Locale has no time
 263  
      *  pattern defined
 264  
      * @since 2.1
 265  
      */
 266  
     public static FastDateFormat getTimeInstance(final int style, final Locale locale) {
 267  1
         return cache.getTimeInstance(style, null, locale);
 268  
     }
 269  
 
 270  
     /**
 271  
      * <p>Gets a time formatter instance using the specified style and
 272  
      * time zone in the default locale.</p>
 273  
      *
 274  
      * @param style  time style: FULL, LONG, MEDIUM, or SHORT
 275  
      * @param timeZone  optional time zone, overrides time zone of
 276  
      *  formatted time
 277  
      * @return a localized standard time formatter
 278  
      * @throws IllegalArgumentException if the Locale has no time
 279  
      *  pattern defined
 280  
      * @since 2.1
 281  
      */
 282  
     public static FastDateFormat getTimeInstance(final int style, final TimeZone timeZone) {
 283  1
         return cache.getTimeInstance(style, timeZone, null);
 284  
     }
 285  
 
 286  
     /**
 287  
      * <p>Gets a time formatter instance using the specified style, time
 288  
      * zone and locale.</p>
 289  
      *
 290  
      * @param style  time style: FULL, LONG, MEDIUM, or SHORT
 291  
      * @param timeZone  optional time zone, overrides time zone of
 292  
      *  formatted time
 293  
      * @param locale  optional locale, overrides system locale
 294  
      * @return a localized standard time formatter
 295  
      * @throws IllegalArgumentException if the Locale has no time
 296  
      *  pattern defined
 297  
      */
 298  
     public static FastDateFormat getTimeInstance(final int style, final TimeZone timeZone, final Locale locale) {
 299  3
         return cache.getTimeInstance(style, timeZone, locale);
 300  
     }
 301  
 
 302  
     //-----------------------------------------------------------------------
 303  
     /**
 304  
      * <p>Gets a date/time formatter instance using the specified style
 305  
      * in the default time zone and locale.</p>
 306  
      *
 307  
      * @param dateStyle  date style: FULL, LONG, MEDIUM, or SHORT
 308  
      * @param timeStyle  time style: FULL, LONG, MEDIUM, or SHORT
 309  
      * @return a localized standard date/time formatter
 310  
      * @throws IllegalArgumentException if the Locale has no date/time
 311  
      *  pattern defined
 312  
      * @since 2.1
 313  
      */
 314  
     public static FastDateFormat getDateTimeInstance(final int dateStyle, final int timeStyle) {
 315  4
         return cache.getDateTimeInstance(dateStyle, timeStyle, null, null);
 316  
     }
 317  
 
 318  
     /**
 319  
      * <p>Gets a date/time formatter instance using the specified style and
 320  
      * locale in the default time zone.</p>
 321  
      *
 322  
      * @param dateStyle  date style: FULL, LONG, MEDIUM, or SHORT
 323  
      * @param timeStyle  time style: FULL, LONG, MEDIUM, or SHORT
 324  
      * @param locale  optional locale, overrides system locale
 325  
      * @return a localized standard date/time formatter
 326  
      * @throws IllegalArgumentException if the Locale has no date/time
 327  
      *  pattern defined
 328  
      * @since 2.1
 329  
      */
 330  
     public static FastDateFormat getDateTimeInstance(final int dateStyle, final int timeStyle, final Locale locale) {
 331  6
         return cache.getDateTimeInstance(dateStyle, timeStyle, null, locale);
 332  
     }
 333  
 
 334  
     /**
 335  
      * <p>Gets a date/time formatter instance using the specified style and
 336  
      * time zone in the default locale.</p>
 337  
      *
 338  
      * @param dateStyle  date style: FULL, LONG, MEDIUM, or SHORT
 339  
      * @param timeStyle  time style: FULL, LONG, MEDIUM, or SHORT
 340  
      * @param timeZone  optional time zone, overrides time zone of
 341  
      *  formatted date
 342  
      * @return a localized standard date/time formatter
 343  
      * @throws IllegalArgumentException if the Locale has no date/time
 344  
      *  pattern defined
 345  
      * @since 2.1
 346  
      */
 347  
     public static FastDateFormat getDateTimeInstance(final int dateStyle, final int timeStyle, final TimeZone timeZone) {
 348  1
         return getDateTimeInstance(dateStyle, timeStyle, timeZone, null);
 349  
     }
 350  
     /**
 351  
      * <p>Gets a date/time formatter instance using the specified style,
 352  
      * time zone and locale.</p>
 353  
      *
 354  
      * @param dateStyle  date style: FULL, LONG, MEDIUM, or SHORT
 355  
      * @param timeStyle  time style: FULL, LONG, MEDIUM, or SHORT
 356  
      * @param timeZone  optional time zone, overrides time zone of
 357  
      *  formatted date
 358  
      * @param locale  optional locale, overrides system locale
 359  
      * @return a localized standard date/time formatter
 360  
      * @throws IllegalArgumentException if the Locale has no date/time
 361  
      *  pattern defined
 362  
      */
 363  
     public static FastDateFormat getDateTimeInstance(
 364  
             final int dateStyle, final int timeStyle, final TimeZone timeZone, final Locale locale) {
 365  4
         return cache.getDateTimeInstance(dateStyle, timeStyle, timeZone, locale);
 366  
     }
 367  
 
 368  
     // Constructor
 369  
     //-----------------------------------------------------------------------
 370  
     /**
 371  
      * <p>Constructs a new FastDateFormat.</p>
 372  
      *
 373  
      * @param pattern  {@link java.text.SimpleDateFormat} compatible pattern
 374  
      * @param timeZone  non-null time zone to use
 375  
      * @param locale  non-null locale to use
 376  
      * @throws NullPointerException if pattern, timeZone, or locale is null.
 377  
      */
 378  
     protected FastDateFormat(final String pattern, final TimeZone timeZone, final Locale locale) {
 379  743
         this(pattern, timeZone, locale, null);
 380  738
     }
 381  
 
 382  
     // Constructor
 383  
     //-----------------------------------------------------------------------
 384  
     /**
 385  
      * <p>Constructs a new FastDateFormat.</p>
 386  
      *
 387  
      * @param pattern  {@link java.text.SimpleDateFormat} compatible pattern
 388  
      * @param timeZone  non-null time zone to use
 389  
      * @param locale  non-null locale to use
 390  
      * @param centuryStart The start of the 100 year period to use as the "default century" for 2 digit year parsing.  If centuryStart is null, defaults to now - 80 years
 391  
      * @throws NullPointerException if pattern, timeZone, or locale is null.
 392  
      */
 393  743
     protected FastDateFormat(final String pattern, final TimeZone timeZone, final Locale locale, final Date centuryStart) {
 394  743
         printer= new FastDatePrinter(pattern, timeZone, locale);
 395  739
         parser= new FastDateParser(pattern, timeZone, locale, centuryStart);
 396  738
     }
 397  
 
 398  
     // Format methods
 399  
     //-----------------------------------------------------------------------
 400  
     /**
 401  
      * <p>Formats a {@code Date}, {@code Calendar} or
 402  
      * {@code Long} (milliseconds) object.</p>
 403  
      *
 404  
      * @param obj  the object to format
 405  
      * @param toAppendTo  the buffer to append to
 406  
      * @param pos  the position - ignored
 407  
      * @return the buffer passed in
 408  
      */
 409  
     @Override
 410  
     public StringBuffer format(final Object obj, final StringBuffer toAppendTo, final FieldPosition pos) {
 411  199999
         return printer.format(obj, toAppendTo, pos);
 412  
     }
 413  
 
 414  
     /**
 415  
      * <p>Formats a millisecond {@code long} value.</p>
 416  
      *
 417  
      * @param millis  the millisecond value to format
 418  
      * @return the formatted string
 419  
      * @since 2.1
 420  
      */
 421  
     @Override
 422  
     public String format(final long millis) {
 423  6
         return printer.format(millis);
 424  
     }
 425  
 
 426  
     /**
 427  
      * <p>Formats a {@code Date} object using a {@code GregorianCalendar}.</p>
 428  
      *
 429  
      * @param date  the date to format
 430  
      * @return the formatted string
 431  
      */
 432  
     @Override
 433  
     public String format(final Date date) {
 434  147
         return printer.format(date);
 435  
     }
 436  
 
 437  
     /**
 438  
      * <p>Formats a {@code Calendar} object.</p>
 439  
      *
 440  
      * @param calendar  the calendar to format
 441  
      * @return the formatted string
 442  
      */
 443  
     @Override
 444  
     public String format(final Calendar calendar) {
 445  781
         return printer.format(calendar);
 446  
     }
 447  
 
 448  
     /**
 449  
      * <p>Formats a millisecond {@code long} value into the
 450  
      * supplied {@code StringBuffer}.</p>
 451  
      *
 452  
      * @param millis  the millisecond value to format
 453  
      * @param buf  the buffer to format into
 454  
      * @return the specified string buffer
 455  
      * @since 2.1
 456  
      */
 457  
     @Override
 458  
     public StringBuffer format(final long millis, final StringBuffer buf) {
 459  0
         return printer.format(millis, buf);
 460  
     }
 461  
 
 462  
     /**
 463  
      * <p>Formats a {@code Date} object into the
 464  
      * supplied {@code StringBuffer} using a {@code GregorianCalendar}.</p>
 465  
      *
 466  
      * @param date  the date to format
 467  
      * @param buf  the buffer to format into
 468  
      * @return the specified string buffer
 469  
      */
 470  
     @Override
 471  
     public StringBuffer format(final Date date, final StringBuffer buf) {
 472  0
         return printer.format(date, buf);
 473  
     }
 474  
 
 475  
     /**
 476  
      * <p>Formats a {@code Calendar} object into the
 477  
      * supplied {@code StringBuffer}.</p>
 478  
      *
 479  
      * @param calendar  the calendar to format
 480  
      * @param buf  the buffer to format into
 481  
      * @return the specified string buffer
 482  
      */
 483  
     @Override
 484  
     public StringBuffer format(final Calendar calendar, final StringBuffer buf) {
 485  0
         return printer.format(calendar, buf);
 486  
     }
 487  
 
 488  
     // Parsing
 489  
     //-----------------------------------------------------------------------
 490  
 
 491  
 
 492  
     /* (non-Javadoc)
 493  
      * @see DateParser#parse(java.lang.String)
 494  
      */
 495  
     @Override
 496  
     public Date parse(final String source) throws ParseException {
 497  3796
         return parser.parse(source);
 498  
     }
 499  
 
 500  
     /* (non-Javadoc)
 501  
      * @see DateParser#parse(java.lang.String, java.text.ParsePosition)
 502  
      */
 503  
     @Override
 504  
     public Date parse(final String source, final ParsePosition pos) {
 505  0
             return parser.parse(source, pos);
 506  
     }
 507  
 
 508  
     /* (non-Javadoc)
 509  
      * @see java.text.Format#parseObject(java.lang.String, java.text.ParsePosition)
 510  
      */
 511  
     @Override
 512  
     public Object parseObject(final String source, final ParsePosition pos) {
 513  100000
         return parser.parseObject(source, pos);
 514  
     }
 515  
 
 516  
     // Accessors
 517  
     //-----------------------------------------------------------------------
 518  
     /**
 519  
      * <p>Gets the pattern used by this formatter.</p>
 520  
      *
 521  
      * @return the pattern, {@link java.text.SimpleDateFormat} compatible
 522  
      */
 523  
     @Override
 524  
     public String getPattern() {
 525  28
         return printer.getPattern();
 526  
     }
 527  
 
 528  
     /**
 529  
      * <p>Gets the time zone used by this formatter.</p>
 530  
      *
 531  
      * <p>This zone is always used for {@code Date} formatting. </p>
 532  
      *
 533  
      * @return the time zone
 534  
      */
 535  
     @Override
 536  
     public TimeZone getTimeZone() {
 537  10
         return printer.getTimeZone();
 538  
     }
 539  
 
 540  
     /**
 541  
      * <p>Gets the locale used by this formatter.</p>
 542  
      *
 543  
      * @return the locale
 544  
      */
 545  
     @Override
 546  
     public Locale getLocale() {
 547  16
         return printer.getLocale();
 548  
     }
 549  
 
 550  
     /**
 551  
      * <p>Gets an estimate for the maximum string length that the
 552  
      * formatter will produce.</p>
 553  
      *
 554  
      * <p>The actual formatted length will almost always be less than or
 555  
      * equal to this amount.</p>
 556  
      *
 557  
      * @return the maximum formatted length
 558  
      */
 559  
     public int getMaxLengthEstimate() {
 560  0
         return printer.getMaxLengthEstimate();
 561  
     }
 562  
 
 563  
     // Basics
 564  
     //-----------------------------------------------------------------------
 565  
     /**
 566  
      * <p>Compares two objects for equality.</p>
 567  
      *
 568  
      * @param obj  the object to compare to
 569  
      * @return {@code true} if equal
 570  
      */
 571  
     @Override
 572  
     public boolean equals(final Object obj) {
 573  20
         if (obj instanceof FastDateFormat == false) {
 574  2
             return false;
 575  
         }
 576  18
         final FastDateFormat other = (FastDateFormat) obj;
 577  
         // no need to check parser, as it has same invariants as printer
 578  18
         return printer.equals(other.printer);
 579  
     }
 580  
 
 581  
     /**
 582  
      * <p>Returns a hashcode compatible with equals.</p>
 583  
      *
 584  
      * @return a hashcode compatible with equals
 585  
      */
 586  
     @Override
 587  
     public int hashCode() {
 588  18
         return printer.hashCode();
 589  
     }
 590  
 
 591  
     /**
 592  
      * <p>Gets a debugging string version of this formatter.</p>
 593  
      *
 594  
      * @return a debugging string
 595  
      */
 596  
     @Override
 597  
     public String toString() {
 598  2
         return "FastDateFormat[" + printer.getPattern() + "," + printer.getLocale() + "," + printer.getTimeZone().getID() + "]";
 599  
     }
 600  
 
 601  
 
 602  
     /**
 603  
      * <p>Performs the formatting by applying the rules to the
 604  
      * specified calendar.</p>
 605  
      *
 606  
      * @param calendar  the calendar to format
 607  
      * @param buf  the buffer to format into
 608  
      * @return the specified string buffer
 609  
      */
 610  
     protected StringBuffer applyRules(final Calendar calendar, final StringBuffer buf) {
 611  0
         return printer.applyRules(calendar, buf);
 612  
     }
 613  
 
 614  
 
 615  
 }