// Returns byte array of a line protocol representation of the point
func (p Point) Bytes(precision string) []byte {
key := imodels.MakeKey([]byte(p.Name), imodels.Tags(p.Tags))
fields := imodels.Fields(p.Fields).MarshalBinary()
kl := len(key)
fl := len(fields)
var bytes []byte
if p.Time.IsZero() {
bytes = make([]byte, fl+kl+1)
copy(bytes, key)
bytes[kl] = ' '
copy(bytes[kl+1:], fields)
} else {
timeStr := strconv.FormatInt(p.Time.UnixNano()/imodels.GetPrecisionMultiplier(precision), 10)
tl := len(timeStr)
bytes = make([]byte, fl+kl+tl+2)
copy(bytes, key)
bytes[kl] = ' '
copy(bytes[kl+1:], fields)
bytes[kl+fl+1] = ' '
copy(bytes[kl+fl+2:], []byte(timeStr))
}
return bytes
}
func TestMakeKeyEscaped(t *testing.T) {
if exp, got := `cpu\ load`, models.MakeKey([]byte(`cpu\ load`), models.Tags{}); string(got) != exp {
t.Errorf("MakeKey() mismatch.\ngot %v\nexp %v", got, exp)
}
if exp, got := `cpu\ load`, models.MakeKey([]byte(`cpu load`), models.Tags{}); string(got) != exp {
t.Errorf("MakeKey() mismatch.\ngot %v\nexp %v", got, exp)
}
if exp, got := `cpu\,load`, models.MakeKey([]byte(`cpu\,load`), models.Tags{}); string(got) != exp {
t.Errorf("MakeKey() mismatch.\ngot %v\nexp %v", got, exp)
}
if exp, got := `cpu\,load`, models.MakeKey([]byte(`cpu,load`), models.Tags{}); string(got) != exp {
t.Errorf("MakeKey() mismatch.\ngot %v\nexp %v", got, exp)
}
}
func TestWriteTimeField(t *testing.T) {
tmpDir, _ := ioutil.TempDir("", "shard_test")
defer os.RemoveAll(tmpDir)
tmpShard := path.Join(tmpDir, "shard")
tmpWal := path.Join(tmpDir, "wal")
index := tsdb.NewDatabaseIndex("db")
opts := tsdb.NewEngineOptions()
opts.Config.WALDir = filepath.Join(tmpDir, "wal")
sh := tsdb.NewShard(1, index, tmpShard, tmpWal, opts)
if err := sh.Open(); err != nil {
t.Fatalf("error opening shard: %s", err.Error())
}
defer sh.Close()
pt := models.MustNewPoint(
"cpu",
models.NewTags(map[string]string{"time": "now"}),
map[string]interface{}{"value": 1.0},
time.Unix(1, 2),
)
buf := bytes.NewBuffer(nil)
sh.SetLogOutput(buf)
if err := sh.WritePoints([]models.Point{pt}); err != nil {
t.Fatalf("unexpected error: %v", err)
} else if got, exp := buf.String(), "dropping tag 'time'"; !strings.Contains(got, exp) {
t.Fatalf("unexpected log message: %s", strings.TrimSpace(got))
}
key := models.MakeKey([]byte("cpu"), nil)
series := index.Series(string(key))
if series == nil {
t.Fatal("expected series")
} else if len(series.Tags) != 0 {
t.Fatalf("unexpected number of tags: got=%v exp=%v", len(series.Tags), 0)
}
}