// Ensure a time duration can be parsed.
func TestParseDuration(t *testing.T) {
var tests = []struct {
s string
d time.Duration
err string
}{
{s: `3`, d: 3 * time.Microsecond},
{s: `1000`, d: 1000 * time.Microsecond},
{s: `10u`, d: 10 * time.Microsecond},
{s: `10µ`, d: 10 * time.Microsecond},
{s: `15ms`, d: 15 * time.Millisecond},
{s: `100s`, d: 100 * time.Second},
{s: `2m`, d: 2 * time.Minute},
{s: `2h`, d: 2 * time.Hour},
{s: `2d`, d: 2 * 24 * time.Hour},
{s: `2w`, d: 2 * 7 * 24 * time.Hour},
{s: ``, err: "invalid duration"},
{s: `w`, err: "invalid duration"},
{s: `1.2w`, err: "invalid duration"},
{s: `10x`, err: "invalid duration"},
}
for i, tt := range tests {
d, err := influxql.ParseDuration(tt.s)
if !reflect.DeepEqual(tt.err, errstring(err)) {
t.Errorf("%d. %q: error mismatch:\n exp=%s\n got=%s\n\n", i, tt.s, tt.err, err)
} else if tt.d != d {
t.Errorf("%d. %q\n\nduration mismatch:\n\nexp=%#v\n\ngot=%#v\n\n", i, tt.s, tt.d, d)
}
}
}
// create a new number from a text string
func newDur(p int, text string) (*DurationNode, error) {
n := &DurationNode{
pos: pos(p),
}
d, err := influxql.ParseDuration(text)
if err != nil {
return nil, err
}
n.Dur = d
return n, nil
}
func (ts *Service) handleSave(w http.ResponseWriter, r *http.Request) {
name := r.URL.Query().Get("name")
newTask := &rawTask{
Name: name,
SnapshotInterval: ts.snapshotInterval,
}
// Check for existing task
raw, err := ts.LoadRaw(name)
exists := err == nil
if exists {
newTask = raw
}
// Get task type
ttStr := r.URL.Query().Get("type")
switch ttStr {
case "stream":
newTask.Type = kapacitor.StreamTask
case "batch":
newTask.Type = kapacitor.BatchTask
default:
if !exists {
if ttStr == "" {
httpd.HttpError(w, fmt.Sprintf("no task with name %q exists cannot infer type.", name), true, http.StatusBadRequest)
} else {
httpd.HttpError(w, fmt.Sprintf("unknown type %q", ttStr), true, http.StatusBadRequest)
}
return
}
}
// Get tick script
tick, err := ioutil.ReadAll(r.Body)
if err != nil {
httpd.HttpError(w, err.Error(), true, http.StatusBadRequest)
return
}
if len(tick) > 0 {
newTask.TICKscript = string(tick)
} else if !exists {
httpd.HttpError(w, fmt.Sprintf("must provide TICKscript via POST data."), true, http.StatusBadRequest)
return
}
// Get dbrps
dbrpsStr := r.URL.Query().Get("dbrps")
if dbrpsStr != "" {
dbrps := make([]kapacitor.DBRP, 0)
err = json.Unmarshal([]byte(dbrpsStr), &dbrps)
if err != nil {
httpd.HttpError(w, err.Error(), true, http.StatusBadRequest)
return
}
newTask.DBRPs = dbrps
} else if !exists {
httpd.HttpError(w, fmt.Sprintf("must provide at least one database and retention policy."), true, http.StatusBadRequest)
return
}
// Get snapshot interval
snapshotIntervalStr := r.URL.Query().Get("snapshot")
if snapshotIntervalStr != "" {
snapshotInterval, err := influxql.ParseDuration(snapshotIntervalStr)
if err != nil {
httpd.HttpError(w, err.Error(), true, http.StatusBadRequest)
return
}
newTask.SnapshotInterval = snapshotInterval
}
err = ts.Save(newTask)
if err != nil {
httpd.HttpError(w, err.Error(), true, http.StatusInternalServerError)
return
}
}
func (r *Service) handleRecord(w http.ResponseWriter, req *http.Request) {
type doFunc func() error
var doF doFunc
started := make(chan struct{})
rid := uuid.NewV4()
typ := req.URL.Query().Get("type")
switch typ {
case "stream":
task := req.URL.Query().Get("name")
if task == "" {
httpd.HttpError(w, "no task specified", true, http.StatusBadRequest)
return
}
t, err := r.TaskStore.Load(task)
if err != nil {
httpd.HttpError(w, err.Error(), true, http.StatusNotFound)
return
}
durStr := req.URL.Query().Get("duration")
dur, err := influxql.ParseDuration(durStr)
if err != nil {
httpd.HttpError(w, "invalid duration string: "+err.Error(), true, http.StatusBadRequest)
return
}
doF = func() error {
err := r.doRecordStream(rid, dur, t.DBRPs, started)
if err != nil {
close(started)
}
return err
}
case "batch":
var err error
// Determine start time.
var start time.Time
startStr := req.URL.Query().Get("start")
pastStr := req.URL.Query().Get("past")
if startStr != "" && pastStr != "" {
httpd.HttpError(w, "must not pass both 'start' and 'past' parameters", true, http.StatusBadRequest)
return
}
now := time.Now()
switch {
case startStr != "":
start, err = time.Parse(time.RFC3339, startStr)
if err != nil {
httpd.HttpError(w, err.Error(), true, http.StatusBadRequest)
return
}
case pastStr != "":
diff, err := influxql.ParseDuration(pastStr)
if err != nil {
httpd.HttpError(w, err.Error(), true, http.StatusBadRequest)
return
}
start = now.Add(-1 * diff)
}
// Get stop time, if present
stop := now
stopStr := req.URL.Query().Get("stop")
if stopStr != "" {
stop, err = time.Parse(time.RFC3339, stopStr)
if err != nil {
httpd.HttpError(w, err.Error(), true, http.StatusBadRequest)
return
}
}
// Get task
task := req.URL.Query().Get("name")
if task == "" {
httpd.HttpError(w, "no task specified", true, http.StatusBadRequest)
return
}
t, err := r.TaskStore.Load(task)
if err != nil {
httpd.HttpError(w, err.Error(), true, http.StatusNotFound)
return
}
doF = func() error {
close(started)
return r.doRecordBatch(rid, t, start, stop)
}
case "query":
query := req.URL.Query().Get("query")
if query == "" {
httpd.HttpError(w, "must pass query parameter", true, http.StatusBadRequest)
return
}
typeStr := req.URL.Query().Get("ttype")
var tt kapacitor.TaskType
switch typeStr {
case "stream":
tt = kapacitor.StreamTask
case "batch":
tt = kapacitor.BatchTask
default:
httpd.HttpError(w, fmt.Sprintf("invalid type %q", typeStr), true, http.StatusBadRequest)
return
}
doF = func() error {
close(started)
return r.doRecordQuery(rid, query, tt)
}
default:
httpd.HttpError(w, "invalid recording type", true, http.StatusBadRequest)
return
}
// Store recording in running recordings.
errC := make(chan error, 1)
func() {
r.recordingsMu.Lock()
defer r.recordingsMu.Unlock()
r.runningRecordings[rid.String()] = errC
}()
// Spawn routine to perform actual recording.
go func() {
err := doF()
if err != nil {
// Always log an error since the user may not have requested the error.
r.logger.Printf("E! recording %s failed: %v", rid.String(), err)
}
errC <- err
// We have finished delete from running map
r.recordingsMu.Lock()
defer r.recordingsMu.Unlock()
delete(r.runningRecordings, rid.String())
}()
// Wait till the goroutine for doing the recording has actually started
<-started
// Respond with the recording ID
type response struct {
RecordingID string `json:"RecordingID"`
}
w.Write(httpd.MarshalJSON(response{rid.String()}, true))
}
