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Commons Lang

[http://jakarta.apache.org/commons/lang Lang] aims to provide:

  • Comprehensive String handling utilities
  • Enumerated types (pre JDK 1.5)
  • Nested exceptions (pre JDK 1.4)
  • Builders to create hashCode, equals, toString and compareTo methods
  • Utilities for Object, Date and Numbers

The Javadoc of the latest version (2.1) is [http://jakarta.apache.org/commons/lang/api/index.html available].

The Javadoc of the CVS version (development) is [http://jakarta.apache.org/commons/lang/apidocs/index.html available].

Development plan for 2.2

Release the text package and bug fixes.

Seeking opinions (2.1)

  1. [http://issues.apache.org/bugzilla/show_bug.cgi?id=22692 22692] [StringUtils].split ignores empty items - new splitPreserveAllTokens Needs to be reviewed.

  2. [http://issues.apache.org/bugzilla/show_bug.cgi?id=24910 24910] new [StringUtils].split methods that split on the whole separator string - committed as splitByWholeSeparator

  3. [http://issues.apache.org/bugzilla/show_bug.cgi?id=15082 15082] [lang] elapsed time formatting utility method - DurationFormatUtils.

  4. DateUtils.isSameDay()
  5. DurationUtils ISO_EXTENDED_FORMAT uses FastDateFormat. This has problems with padding of years. See commented TODO in DurationFormatUtils. - No longer uses FastDateFormat. Instead it uses the DurationFormatUtils format code, of which a new variant has been added

Pushed back (2.1)

  1. [http://issues.apache.org/bugzilla/show_bug.cgi?id=21663 21663] [lang] Add support in [ToStringStyle] for [DateFormat]. - Grows quickly into commons-convert

  2. [http://issues.apache.org/bugzilla/show_bug.cgi?id=27643 27643] [lang][patch] [ClassUtils].newInstance method - Seems unnecessary

  3. [http://issues.apache.org/bugzilla/show_bug.cgi?id=29149 29149] [lang] [StringEscapeUtils].unescapeHtml() doesn't handle an empty entity - Empty entity is in fact illegal HTML, so need to decide if we should ignore. Current behaviour seems acceptable as we're not in the work with bad HTML market.

  4. StringBuffer replacement - Probably 2.2/3.0. A lot of work in this I'd imagine.

  5. [http://issues.apache.org/bugzilla/show_bug.cgi?id=26659 26659] [lang] add method to [DateUtils] to get the distance between 2 dates - Mainly replicated by [DurationFormatUtils], or non-obvious

  6. [http://issues.apache.org/bugzilla/show_bug.cgi?id=29692 29692] [lang] String indentation feature request - Needs design as a non-simple problem

  7. [http://issues.apache.org/bugzilla/show_bug.cgi?id=22172 22172] [lang] [DateUtils].parseCVS behavior parsing "h:mm z" - Moved to sandbox

  8. [http://issues.apache.org/bugzilla/show_bug.cgi?id=26297 26297] [lang] [BitSetUtils] class, toIndexArray and fromIndexArray

  9. [http://issues.apache.org/bugzilla/show_bug.cgi?id=26922 26922] [lang] public static boolean [DateUtils].equals(Date dt1, Date dt2)

  10. [http://issues.apache.org/bugzilla/show_bug.cgi?id=21333 21333] Add [TimeoutController] - Class in [HttpClient]. Leaving til 3.0 as not much movement on it

  11. [http://issues.apache.org/bugzilla/show_bug.cgi?id=30674 30674] Support [HttpClient]'s [DateParser] class - This is basically a Date parseDate(String dateValue, String[] dateFormats) method.

  12. [http://issues.apache.org/bugzilla/show_bug.cgi?id=15082 15082] [lang] elapsed time formatting utility method - DurationFormatUtils. Needs finishing.

  13. New text package with Interpolation class moved there and MappedMessageFormat from code in Digester.

  14. [http://issues.apache.org/bugzilla/show_bug.cgi?id=18962 18962] [lang] New Method: getSubstitutedValues( String, Map ) - org.apache.commons.lang.text.Interpolation available for opinions

Resolved list (2.1)

  1. [http://issues.apache.org/bugzilla/show_bug.cgi?id=30929 30929] [lang] Nestable.indexOfThrowable(Class)uses Class.equals() to match - DONE

  2. [http://issues.apache.org/bugzilla/show_bug.cgi?id=27592 27592] [lang] [WordUtils] capitalize improvement - DONE

  3. [http://issues.apache.org/bugzilla/show_bug.cgi?id=23557 23557] [WordUtils].capitalizeFully(String str) should take a delimiter - DONE

  4. [http://issues.apache.org/bugzilla/show_bug.cgi?id=27778 27778] [lang] add remove methods to [ArrayUtils] - DONE

  5. StringTokenizer replacement: (DONE - Tokenizer)

  6. [http://issues.apache.org/bugzilla/show_bug.cgi?id=25227 25227] [lang] [StringEscapeUtils].unescapeHtml() doesn't handle hex entities - DONE

  7. [http://issues.apache.org/bugzilla/show_bug.cgi?id=27640 27640] [lang][patch] [ClassUtils].primitivesToWrappers method - DONE

  8. [http://issues.apache.org/bugzilla/show_bug.cgi?id=23749 23749] [lang] [PATCH] [NumberRange] - adds inclusive and exclusive end points - WONTFIX

  9. [http://issues.apache.org/bugzilla/show_bug.cgi?id=27876 27876] [lang] [ReflectionToStringBuilder].toString(null) throws exception by design - DONE

  10. [http://issues.apache.org/bugzilla/show_bug.cgi?id=27877 27877] [lang][patch] Make [ClassUtils] methods null-safe and not throw an IAE. - DONE

  11. StringUtils.ordinalIndexOf() - Appears to be DONE

  12. [http://issues.apache.org/bugzilla/show_bug.cgi?id=29673 29673] [lang] [ExceptionUtils]: new getCause() methodname (for tomcat-exception) - DONE

  13. [http://issues.apache.org/bugzilla/show_bug.cgi?id=25560 25560] [DateUtils].truncate() is off by one hour when using a date in DST switch 'zone' - DONE

  14. [http://issues.apache.org/bugzilla/show_bug.cgi?id=19331 19331] [lang] General case: infinite loop: [ToStringBuilder].reflectionToString - The bugzilla entry Gary Gregory 2003-06-23 17:27 shows this to have been fixed.

  15. [http://issues.apache.org/bugzilla/show_bug.cgi?id=29294 29294] [lang][PATCH] Fix the Fraction class - DONE

  16. [http://issues.apache.org/bugzilla/show_bug.cgi?id=29794 29794] Add convenience format(long) methods to [FastDateFormat] - DONE

  17. [http://issues.apache.org/bugzilla/show_bug.cgi?id=28468 28468] [StringUtils].defaultString: Documentation error - DONE

  18. [http://issues.apache.org/bugzilla/show_bug.cgi?id=22489 22489] [lang]patch] [StringUtils].isAsciiPrintable() - DONE

  19. [http://issues.apache.org/bugzilla/show_bug.cgi?id=26646 26646] [lang] [FastDateFormat].getDateInstance(int, Locale) always uses the pattern from the first invocation - DONE

  20. [http://issues.apache.org/bugzilla/show_bug.cgi?id=31181 31181] [FastDateFormat] year bug - DONE

  21. [http://issues.apache.org/bugzilla/show_bug.cgi?id=32198 32198] [lang] Error in [JavaDoc] for [StringUtils].chomp(String, String) - DONE

  22. [http://issues.apache.org/bugzilla/show_bug.cgi?id=22717 22717] [lang] MutableNumbers - see lang.mutable. - COMPLETE

  23. [http://issues.apache.org/bugzilla/show_bug.cgi?id=30334 30334] [lang] New class proposal: CharacterEncoding - COMPLETE

  24. [http://issues.apache.org/bugzilla/show_bug.cgi?id=29163 29163] Make [StopWatch] validate state transitions - COMPLETE

  25. [http://issues.apache.org/bugzilla/show_bug.cgi?id=26056 26056] [lang] Add methods to [ArrayUtils]: add at end and insert-like ops - 'DONE - add(Object[], Object) is overloaded for all the primitives, as is add(Object[], int, Object) and addAll(Object[], Object[]).

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