func parseHeader()

in pkg/metrics/collector/conntrack.go [94:131]

• 38 lines of code
• 16 McCabe index (conditional complexity)

func parseHeader(line string) (*conntrackIndices, error) {
	indices := &conntrackIndices{
		found:         -1,
		invalid:       -1,
		insert:        -1,
		insertFailed:  -1,
		drop:          -1,
		earlyDrop:     -1,
		searchRestart: -1,
	}
	nameParts := strings.Split(line, " ")
	indices.numFields = len(nameParts)
	for i, v := range nameParts {
		switch v {
		case "found":
			indices.found = i
		case "invalid":
			indices.invalid = i
		case "insert":
			indices.insert = i
		case "insert_failed":
			indices.insertFailed = i
		case "drop":
			indices.drop = i
		case "early_drop":
			indices.earlyDrop = i
		case "search_restart":
			indices.searchRestart = i
		}
	}
	if indices.found == -1 || indices.invalid == -1 ||
		indices.insert == -1 || indices.insertFailed == -1 ||
		indices.drop == -1 || indices.earlyDrop == -1 ||
		indices.searchRestart == -1 {
		return nil, fmt.Errorf("invalid header %q: doesn't have target fields", line)
	}
	return indices, nil
}