public function init()
 {
     $this->_instanceName = $this->argumentValue('instance', '');
     $this->_logger->setInstanceName($this->_instanceName);
     if ($this->argumentIsSet('dry-run')) {
         ProcessorOptions::setDryRun(true);
     }
     TokenRange::setOverrideTableName($this->_getTokenRangesTableName());
     TokenRange::setOverrideServiceName($this->_getTokenRangesDBServiceName());
 }