public function import()
 {
     ini_set("auto_detect_line_endings", true);
     $domain_name = $this->_domain_name;
     $file_name = $this->csv_file_path;
     $file_handle = fopen($file_name, "r");
     /**
      * id,area_name,pincode 
      */
     $line_number = 0;
     $header_line = null;
     $buffered_record_count = 0;
     $buffered_records = array();
     while (($line = fgetcsv($file_handle, $file_name)) !== FALSE) {
         $line_number++;
         //Skip first line as they are the column headers in excel sheet
         if ($line_number == 1) {
             $header_line = $line;
             continue;
         }
         $id = $line[0];
         $category = $line[1];
         $category = trim($category, '"');
         $attributes = array($header_line[0] => $id, $header_line[1] => $category);
         $simpledb_record = array("name" => $id, "attributes" => $attributes);
         //SimpleDb can save a maximum of 25 records in a batch
         if ($buffered_record_count < 25) {
             $buffered_record_count++;
             array_push($buffered_records, $simpledb_record);
         } else {
             $items = SimpleDbUtils::genSimpleDbMultipleItemsArray($buffered_records);
             SimpleDbPersister::batch_save($domain_name, $items);
             $buffered_records = array();
             $buffered_record_count = 0;
         }
     }
     //Upload remaining buffered records
     if ($buffered_record_count > 0) {
         $items = SimpleDbUtils::genSimpleDbMultipleItemsArray($buffered_records);
         SimpleDbPersister::batch_save($domain_name, $items);
     }
 }