public function __construct($systemName = null, $extraPrefix = null, $contextPrefix = 'ctxt_')
 {
     parent::__construct('U.u');
     $this->systemName = $systemName ? $systemName : php_uname('n');
     $this->extraPrefix = $extraPrefix;
     $this->contextPrefix = $contextPrefix;
 }
 /**
  * @param string $format     The format of the message
  * @param string $dateFormat The format of the timestamp: one supported by DateTime::format
  */
 public function __construct($format = null, $dateFormat = null)
 {
     $this->format = $format ? $format : self::SIMPLE_FORMAT;
     parent::__construct($dateFormat);
 }
 /**
  * @param string $dateFormat The format of the timestamp: one supported by DateTime::format
  */
 public function __construct($dateFormat = null)
 {
     parent::__construct($dateFormat);
 }