func getAddressesForSubset()

in pkg/appgw/backendaddresspools.go [145:181]
26 lines of code
9 McCabe index (conditional complexity)

func getAddressesForSubset(subset v1.EndpointSubset) *[]n.ApplicationGatewayBackendAddress {
	// We make separate maps for IP and FQDN to ensure uniqueness within the 2 groups
	// We cannot use ApplicationGatewayBackendAddress as it contains pointer to strings and the same IP string
	// at a different address would be 2 unique keys.
	addrSet := make(map[n.ApplicationGatewayBackendAddress]interface{})
	ips := make(map[string]interface{})
	fqdns := make(map[string]interface{})
	for _, address := range subset.Addresses {
		// prefer IP address
		if len(address.IP) != 0 {
			// address specified by ip
			ips[address.IP] = nil
		} else if len(address.Hostname) != 0 {
			// address specified by hostname
			fqdns[address.Hostname] = nil
		}
	}

	for _, address := range subset.NotReadyAddresses {
		// prefer IP address
		if len(address.IP) != 0 {
			// address specified by ip
			ips[address.IP] = nil
		} else if len(address.Hostname) != 0 {
			// address specified by hostname
			fqdns[address.Hostname] = nil
		}
	}

	for ip := range ips {
		addrSet[n.ApplicationGatewayBackendAddress{IPAddress: to.StringPtr(ip)}] = nil
	}
	for fqdn := range fqdns {
		addrSet[n.ApplicationGatewayBackendAddress{Fqdn: to.StringPtr(fqdn)}] = nil
	}
	return getBackendAddressMapKeys(&addrSet)
}