private DatePatternConverter()

in src/main/java/org/apache/log4j/pattern/DatePatternConverter.java [112:163]
39 lines of code
10 McCabe index (conditional complexity)

  private DatePatternConverter(final String[] options) {
    super("Date", "date");

    String patternOption;

    if ((options == null) || (options.length == 0)) {
      // the branch could be optimized, but here we are making explicit
      // that null values for patternOption are allowed.
      patternOption = null;
    } else {
      patternOption = options[0];
    }

    String pattern;

    if (
      (patternOption == null)
        || patternOption.equalsIgnoreCase(ISO8601_FORMAT)) {
      pattern = ISO8601_PATTERN;
    } else if (patternOption.equalsIgnoreCase(ABSOLUTE_FORMAT)) {
      pattern = ABSOLUTE_TIME_PATTERN;
    } else if (patternOption.equalsIgnoreCase(DATE_AND_TIME_FORMAT)) {
      pattern = DATE_AND_TIME_PATTERN;
    } else {
      pattern = patternOption;
    }

    int maximumCacheValidity = 1000;
    DateFormat simpleFormat = null;

    try {
      simpleFormat = new SimpleDateFormat(pattern);
      maximumCacheValidity = CachedDateFormat.getMaximumCacheValidity(pattern);
    } catch (IllegalArgumentException e) {
        LogLog.warn(
          "Could not instantiate SimpleDateFormat with pattern "
          + patternOption, e);

      // default to the ISO8601 format
      simpleFormat = new SimpleDateFormat(ISO8601_PATTERN);
    }

    // if the option list contains a TZ option, then set it.
    if ((options != null) && (options.length > 1)) {
      TimeZone tz = TimeZone.getTimeZone((String) options[1]);
      simpleFormat.setTimeZone(tz);
    } else {
      simpleFormat = new DefaultZoneDateFormat(simpleFormat);
    }

    df = new CachedDateFormat(simpleFormat, maximumCacheValidity);
  }