func SingleNodeCluster()

in util/util.go [99:128]

• 17 lines of code
• 5 McCabe index (conditional complexity)

func SingleNodeCluster(hostport string, hostMap map[string][]string) bool {
	// If the map contains more than one host then clearly there is more than
	// one address so we can't be a single node cluster.
	if len(hostMap) > 1 {
		return false
	}

	host := CaptureHost(hostport)

	// If hostport is not even in the map at all then it's not possible for
	// us to be a single node cluster.
	_, ok := hostMap[host]
	if !ok {
		return false
	}

	// Same as above; there is most than one host
	if len(hostMap[host]) > 1 {
		return false
	}

	// There is a single hostport in the map; check that it matches
	if hostMap[host][0] == hostport {
		return true
	}

	// There is a single hostport in the map but it doesn't match the given
	// hostport.
	return false
}