func updateDownstream(n *html.Node) map[modem.Channel]*downstreamStat {
glog.V(2).Infoln("Updating downstream table")
stats := map[modem.Channel]*downstreamStat{}
var ids []modem.Channel
// Remove nested tables
for _, t := range cascadia.MustCompile("table table").MatchAll(n) {
t.Parent.RemoveChild(t)
}
for row, tr := range cascadia.MustCompile("tr").MatchAll(n)[1:] {
switch row {
case 0:
// ID
for _, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
id := modem.Channel(htmlutil.GetText(td))
ids = append(ids, id)
stats[id] = &downstreamStat{}
}
case 1:
// Frequency
for i, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
stats[ids[i]].frequency = strings.Fields(htmlutil.GetText(td))[0]
}
case 2:
// SNR
for i, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
f, err := strconv.ParseFloat(strings.Fields(htmlutil.GetText(td))[0], 64)
if err != nil {
continue
}
stats[ids[i]].snr = f
}
case 3:
// Modulation
for i, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
stats[ids[i]].modulation = htmlutil.GetText(td)
}
case 4:
for i, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
// Power level
f, err := strconv.ParseFloat(strings.Fields(htmlutil.GetText(td))[0], 64)
if err != nil {
continue
}
stats[ids[i]].powerLevel = f
}
default:
glog.Fatalf("Unhandled %d row in downstream table", row)
}
}
return stats
}
func updateSignalStats(n *html.Node) map[modem.Channel]*downstreamErrorStat {
glog.V(2).Infoln("Updating signal stats table")
stats := map[modem.Channel]*downstreamErrorStat{}
var ids []modem.Channel
for row, tr := range cascadia.MustCompile("tr").MatchAll(n)[1:] {
switch row {
case 0:
// ID
for _, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
id := modem.Channel(htmlutil.GetText(td))
ids = append(ids, id)
stats[id] = &downstreamErrorStat{}
}
case 1:
// Total Unerrored Codewords
for i, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
f, err := strconv.ParseFloat(strings.Fields(htmlutil.GetText(td))[0], 64)
if err != nil {
continue
}
stats[ids[i]].unerrored = f
}
case 2:
// Total Correctable Codewords
for i, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
f, err := strconv.ParseFloat(strings.Fields(htmlutil.GetText(td))[0], 64)
if err != nil {
continue
}
stats[ids[i]].correctable = f
}
case 3:
// Total Uncorrectable Codewords
for i, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
f, err := strconv.ParseFloat(strings.Fields(htmlutil.GetText(td))[0], 64)
if err != nil {
continue
}
stats[ids[i]].uncorrectable = f
}
default:
glog.Fatalf("Unhandled %d row in signal stats table", row)
}
}
return stats
}
func updateUpstream(n *html.Node) map[modem.Channel]*upstreamStat {
glog.V(2).Infoln("Updating upstream table")
stats := map[modem.Channel]*upstreamStat{}
var ids []modem.Channel
for row, tr := range cascadia.MustCompile("tr").MatchAll(n)[1:] {
switch row {
case 0:
// ID
for _, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
id := modem.Channel(htmlutil.GetText(td))
ids = append(ids, id)
stats[id] = &upstreamStat{}
}
case 1:
// Frequency
for i, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
stats[ids[i]].frequency = strings.Fields(htmlutil.GetText(td))[0]
}
case 2:
// Ranging Service ID
for i, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
stats[ids[i]].rangingService = htmlutil.GetText(td)
}
case 3:
// Symbol Rate
for i, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
f, err := strconv.ParseFloat(strings.Fields(htmlutil.GetText(td))[0], 64)
if err != nil {
continue
}
stats[ids[i]].symbolRate = f * 1000000
}
case 4:
// Power level
for i, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
f, err := strconv.ParseFloat(strings.Fields(htmlutil.GetText(td))[0], 64)
if err != nil {
continue
}
stats[ids[i]].powerLevel = f
}
case 5:
// Modulation
for i, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
stats[ids[i]].modulation = strings.Replace(htmlutil.GetText(td), "\n", " ", -1)
}
case 6:
// Ranging Status
for i, td := range cascadia.MustCompile("td").MatchAll(tr)[1:] {
stats[ids[i]].rangingStatus = htmlutil.GetText(td)
}
default:
glog.Fatalf("Unhandled %d row in upstream table", row)
}
}
return stats
}
func parseDownstreamTable(n *html.Node) (map[modem.Channel]*modem.Downstream, error) {
m := map[modem.Channel]*modem.Downstream{}
rows := cascadia.MustCompile("tr").MatchAll(n)
if len(rows) <= 2 {
return nil, fmt.Errorf("Expected more than 2 row in table, got %d", len(rows))
}
for _, row := range rows[2:] {
d := &modem.Downstream{}
var ch modem.Channel
for i, col := range cascadia.MustCompile("td").MatchAll(row) {
v := htmlutil.GetText(col)
fv := v
if idx := strings.Index(v, " "); idx != -1 {
fv = fv[:idx]
}
f, _ := strconv.ParseFloat(fv, 64)
switch i {
case 0:
// Channel
ch = modem.Channel(v)
case 1:
// Lock Status
case 2:
// Modulation
d.Modulation = v
case 3:
// Channel ID
case 4:
// Frequency (Hz)
d.Frequency = v
case 5:
// Power (dBmV)
d.PowerLevel = f
case 6:
// SNR (dB)
d.SNR = f
case 7:
// Corrected
d.Correctable = f
case 8:
// Uncorrectables
d.Uncorrectable = f
default:
glog.Errorf("Unexpected %dth column in downstream table", i)
}
}
m[ch] = d
}
return m, nil
}