* @return the extracted value, or null if no match
     */
    protected String getValue(final Pattern pattern, final String line) {
        final Matcher m = pattern.matcher(line);
        if (m.matches() && m.groupCount() > 0) {
            return m.group(1);
        }
        return null;
    }

    /**
     * Strips comments from a line (everything after '#' character).

        if (matcher.find()) {
            if (logger.isDebugEnabled()) {
                logger.debug("Matched: {}", matcher.group());
            }
            if (matcher.groupCount() > 0) {
                return matcher.group(1);
            }
        }
        return null;
    }

    /**
     * Replaces credentials in the given value.

		for g, pslc := range groupDescStats {
			var gds []madmin.GroupDesc
			groupCount := 0
			for _, ps := range pslc {
				groupCount++
				sum := info.StatsSummary[ps.DeploymentID]
				sum.TotalGroupsCount++
				info.StatsSummary[ps.DeploymentID] = sum
				gds = append(gds, ps.GroupDesc)
			}
			gdMismatch := !isGroupDescReplicated(groupCount, numSites, gds)
			for _, ps := range pslc {