StringBuffer format()

in src/main/java/org/apache/log4j/helpers/AbsoluteTimeDateFormat.java [82:136]

• 38 lines of code
• 8 McCabe index (conditional complexity)

  StringBuffer format(Date date, StringBuffer sbuf,
		      FieldPosition fieldPosition) {

    long now = date.getTime();
    int millis = (int)(now % 1000);

    if ((now - millis) != previousTime || previousTimeWithoutMillis[0] == 0) {
      // We reach this point at most once per second
      // across all threads instead of each time format()
      // is called. This saves considerable CPU time.

      calendar.setTime(date);

      int start = sbuf.length();
      
      int hour = calendar.get(Calendar.HOUR_OF_DAY);
      if(hour < 10) {
	sbuf.append('0');
      }
      sbuf.append(hour);
      sbuf.append(':');
      
      int mins = calendar.get(Calendar.MINUTE);
      if(mins < 10) {
	sbuf.append('0');
      }
      sbuf.append(mins);
      sbuf.append(':');
      
      int secs = calendar.get(Calendar.SECOND);
      if(secs < 10) {
	sbuf.append('0');
      }
      sbuf.append(secs);
      sbuf.append(',');      

      // store the time string for next time to avoid recomputation
      sbuf.getChars(start, sbuf.length(), previousTimeWithoutMillis, 0);
      
      previousTime = now - millis;
    }
    else {
      sbuf.append(previousTimeWithoutMillis);
    }
    

    
    if(millis < 100) 
      sbuf.append('0');
    if(millis < 10) 
      sbuf.append('0');
    
    sbuf.append(millis);
    return sbuf;
  }