Collect HAProxy Stats

def _collect(self, section=None):
        """
        Collect HAProxy Stats
        """
        if self.config['method'] == 'http':
            csv_data = self.http_get_csv_data(section)
        elif self.config['method'] == 'unix':
            csv_data = self.unix_get_csv_data()
        else:
            self.log.error("Unknown collection method: %s",
                           self.config['method'])
            csv_data = []

        data = list(csv.reader(csv_data))
        headings = self._generate_headings(data[0])
        section_name = section and self._sanitize(section.lower()) + '.' or ''

        for row in data:
            if ((self._get_config_value(section, 'ignore_servers') and
                 row[1].lower() not in ['frontend', 'backend'])):
                continue

            part_one = self._sanitize(row[0].lower())
            part_two = self._sanitize(row[1].lower())
            metric_name = '%s%s.%s' % (section_name, part_one, part_two)

            for index, metric_string in enumerate(row):
                try:
                    metric_value = float(metric_string)
                except ValueError:
                    continue

                stat_name = '%s.%s' % (metric_name, headings[index])
                self.publish(stat_name, metric_value, metric_type='GAUGE')