// parseTcollectorValue parses a tcollector-style line into a data point.
func parseTcollectorValue(line string) (*opentsdb.DataPoint, error) {
sp := strings.Fields(line)
if len(sp) < 3 {
return nil, fmt.Errorf("bad line: %s", line)
}
ts, err := strconv.ParseInt(sp[1], 10, 64)
if err != nil {
return nil, fmt.Errorf("bad timestamp: %s", sp[1])
}
val, err := strconv.ParseFloat(sp[2], 64)
if err != nil {
return nil, fmt.Errorf("bad value: %s", sp[2])
}
if !opentsdb.ValidTag(sp[0]) {
return nil, fmt.Errorf("bad metric: %s", sp[0])
}
dp := opentsdb.DataPoint{
Metric: sp[0],
Timestamp: ts,
Value: val,
}
tags := opentsdb.TagSet{}
for _, tag := range sp[3:] {
ts, err := opentsdb.ParseTags(tag)
if err != nil {
return nil, fmt.Errorf("bad tag, metric %s: %v: %v", sp[0], tag, err)
}
tags.Merge(ts)
}
setExternalTags(tags)
dp.Tags = tags
return &dp, nil
}
// NewWatchedProc takes a string of the form "command,name,regex".
func NewWatchedProc(params ProcessParams) (*WatchedProc, error) {
if params.Name == "" {
params.Name = params.Command
}
if !opentsdb.ValidTag(params.Name) {
return nil, fmt.Errorf("bad process name: %v", params.Name)
}
return &WatchedProc{
Command: params.Command,
Name: params.Name,
Processes: make(map[string]int),
ArgMatch: regexp.MustCompile(params.Args),
idPool: new(idPool),
}, nil
}