func handleTCPRequest(conn net.Conn, errorChannel chan error, closeOnError bool) {
defer conn.Close()
remoteAddress := conn.RemoteAddr().String()
errorChannel <- gotelemetry.NewDebugError("Graphite => New connection from %s", remoteAddress)
r := bufio.NewScanner(conn)
for r.Scan() {
if err := parseRequest(remoteAddress, r.Text(), errorChannel); err != nil {
errorChannel <- err
if closeOnError {
return
}
}
}
if err := r.Err(); err != nil && err != io.EOF {
errorChannel <- err
}
errorChannel <- gotelemetry.NewDebugError("Graphite => Connection from %s terminated.", remoteAddress)
}
// Debugf sends a formatted string to the agent's debug log, if it exists. It works like log.Logf
func (m *Manager) Debugf(format string, v ...interface{}) {
if m.errorChannel != nil {
m.errorChannel <- gotelemetry.NewDebugError("Data Manager -> %#s", fmt.Sprintf(format, v...))
}
}
func ProcessPipeRequest(configFile *config.ConfigFile, errorChannel chan error, completionChannel chan bool, data []byte) {
errorChannel <- gotelemetry.NewLogError("Piped mode is on.")
errorChannel <- gotelemetry.NewDebugError("Input data is %s", strings.Replace(string(data), "\n", "\\n", -1))
submissionType := gotelemetry.BatchTypePATCH
if config.CLIConfig.UseJSONPatch {
errorChannel <- gotelemetry.NewDebugError("Will perform a JSON-Patch operation")
submissionType = gotelemetry.BatchTypeJSONPATCH
} else if config.CLIConfig.UsePOST {
errorChannel <- gotelemetry.NewDebugError("Will perform a POST operation")
submissionType = gotelemetry.BatchTypePOST
} else {
errorChannel <- gotelemetry.NewDebugError("Will perform a Rails-style HTTP PATCH operation")
}
apiToken, err := configFile.APIToken()
if err != nil {
errorChannel <- err
completionChannel <- true
return
}
credentials, err := gotelemetry.NewCredentials(apiToken, configFile.APIURL())
if err != nil {
errorChannel <- err
completionChannel <- true
return
}
credentials.SetDebugChannel(errorChannel)
updates := map[string]interface{}{}
err = json.Unmarshal(data, &updates)
if err != nil {
errorChannel <- err
completionChannel <- true
return
}
b := gotelemetry.Batch{}
for tag, update := range updates {
b.SetData(tag, update)
}
err = b.Publish(credentials, configFile.ChannelTag(), submissionType)
if err != nil {
errorChannel <- err
}
errorChannel <- gotelemetry.NewLogError("Processing complete. Exiting.")
completionChannel <- true
}
func parseTraditionalRequest(remoteAddress string, line []string, errorChannel chan error) error {
seriesName := line[0]
value, err := strconv.ParseFloat(line[1], 64)
if err != nil {
return gotelemetry.NewErrorWithFormat(
400, "Graphite => [%s] Invalid value %s: %s",
nil,
remoteAddress,
line[1],
err.Error(),
)
}
timestamp, err := strconv.ParseInt(line[2], 10, 64)
if err != nil {
return gotelemetry.NewErrorWithFormat(
400, "Graphite => [%s] Invalid timestamp %s: %s",
nil,
remoteAddress,
line[2],
err.Error(),
)
}
series, isCreated, err := aggregations.GetSeries(seriesName)
if err != nil {
return gotelemetry.NewErrorWithFormat(
500, "Graphite => [%s] Unable to get series %s: %s",
nil,
remoteAddress,
seriesName,
err.Error(),
)
}
if isCreated {
errorChannel <- gotelemetry.NewLogError("Graphite => Started receiving graphite data for '%s'", seriesName)
}
ts := time.Unix(timestamp, 0)
if err := series.Push(&ts, value); err != nil {
return gotelemetry.NewErrorWithFormat(
500, "Graphite => [%s] Unable to push value %f with timestamp %s to series %s: %s",
nil,
remoteAddress,
value,
ts,
seriesName,
err.Error(),
)
}
errorChannel <- gotelemetry.NewDebugError(
"Graphite => [%s] Pushed value %f to series %s at time %s",
remoteAddress,
value,
seriesName,
ts,
)
return nil
}
// Debugf sends a formatted string to the agent's debug log, if it exists. It works like log.Logf
func (j *Job) Debugf(format string, v ...interface{}) {
if j.errorChannel != nil {
j.errorChannel <- gotelemetry.NewDebugError("%s -> %#s", j.ID, fmt.Sprintf(format, v...))
}
}