func Parse()

in tracing/connstr/connection_string_parser.go [17:55]

• 30 lines of code
• 9 McCabe index (conditional complexity)

func Parse(connectionString string) (driverName string, options map[string]string, err error) {
	if connectionString == "" {
		return "", nil, errInvalidConnection
	}

	URL, err := url.Parse(connectionString)
	if err != nil {
		return "", nil, errInvalidConnection
	}

	if URL.Scheme != "opentracing" {
		return "", nil, errInvalidConnection
	}

	driverName = URL.Host
	if driverName == "" {
		return "", nil, errInvalidConnection
	}

	// Connection strings should not have a path
	if URL.Path != "" {
		return "", nil, errInvalidConnection
	}

	matched, err := regexp.MatchString("^[a-z0-9_]+$", driverName)
	if err != nil || !matched {
		return "", nil, errInvalidConnection
	}

	query := URL.Query()
	driverName = URL.Host
	options = make(map[string]string, len(query))

	for k := range query {
		options[k] = query.Get(k)
	}

	return driverName, options, nil
}