protected function _getTable()
    {
        $table = TableRegistry::get($this->args[0]);
        $connection = $table->connection();
        $tables = $connection->schemaCollection()->listTables();
        if (!in_array($table->table(), $tables)) {
            $this->abort(__d('Burzum/HtmlPurifier', 'Table `{0}` does not exist in connection `{1}`!', $table->table(), $connection->configName()));
        }
        return $table;
    }