Example #1
0
func TestClient_Timeout(t *testing.T) {
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		time.Sleep(1 * time.Second)
		var data client.Response
		w.WriteHeader(http.StatusOK)
		_ = json.NewEncoder(w).Encode(data)
	}))
	defer ts.Close()

	u, _ := url.Parse(ts.URL)
	config := client.Config{URL: *u, Timeout: 500 * time.Millisecond}
	c, err := client.NewClient(config)
	if err != nil {
		t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
	}

	query := client.Query{}
	_, err = c.Query(query)
	if err == nil {
		t.Fatalf("unexpected success.  expected timeout error")
	} else if !strings.Contains(err.Error(), "use of closed network connection") {
		t.Fatalf("unexpected error.  expected 'use of closed network connection' error, got %v", err)
	}

	confignotimeout := client.Config{URL: *u}
	cnotimeout, err := client.NewClient(confignotimeout)
	_, err = cnotimeout.Query(query)
	if err != nil {
		t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
	}
}
Example #2
0
func TestNewClient(t *testing.T) {
	config := client.Config{}
	_, err := client.NewClient(config)
	if err != nil {
		t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
	}
}
Example #3
0
func TestClient_BasicAuth(t *testing.T) {
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		u, p, ok := r.BasicAuth()

		if !ok {
			t.Errorf("basic auth error")
		}
		if u != "username" {
			t.Errorf("unexpected username, expected %q, actual %q", "username", u)
		}
		if p != "password" {
			t.Errorf("unexpected password, expected %q, actual %q", "password", p)
		}
		w.WriteHeader(http.StatusNoContent)
	}))
	defer ts.Close()

	u, _ := url.Parse(ts.URL)
	u.User = url.UserPassword("username", "password")
	config := client.Config{URL: *u, Username: "******", Password: "******"}
	c, err := client.NewClient(config)
	if err != nil {
		t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
	}

	_, _, err = c.Ping()
	if err != nil {
		t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
	}
}
Example #4
0
func (self *InfluxDBEngine) RecordAnomalous(w morgoth.Window) error {
	w.Tags[self.measurementTag] = w.Name
	point := client.Point{
		Measurement: self.anomalyMeasurement,
		Tags:        w.Tags,
		Fields: map[string]interface{}{
			"start": w.Start.Unix(),
			"stop":  w.Stop.Unix(),
		},
		Time:      w.Start,
		Precision: "s",
	}

	batch := client.BatchPoints{
		Points:   []client.Point{point},
		Database: self.database,
	}

	con, err := client.NewClient(self.conf)
	if err != nil {
		return err
	}
	_, err = con.Write(batch)
	return err
}
Example #5
0
func ExampleClient_Ping() {
	host, err := url.Parse(fmt.Sprintf("http://%s:%d", "localhost", 8086))
	if err != nil {
		log.Fatal(err)
	}
	con, err := client.NewClient(client.Config{URL: *host})
	if err != nil {
		log.Fatal(err)
	}

	dur, ver, err := con.Ping()
	if err != nil {
		log.Fatal(err)
	}
	log.Printf("Happy as a hippo! %v, %s", dur, ver)
}
Example #6
0
func ExampleClient_Query() {
	host, err := url.Parse(fmt.Sprintf("http://%s:%d", "localhost", 8086))
	if err != nil {
		log.Fatal(err)
	}
	con, err := client.NewClient(client.Config{URL: *host})
	if err != nil {
		log.Fatal(err)
	}

	q := client.Query{
		Command:  "select count(value) from shapes",
		Database: "square_holes",
	}
	if response, err := con.Query(q); err == nil && response.Error() == nil {
		log.Println(response.Results)
	}
}
Example #7
0
func ExampleClient_Write() {
	host, err := url.Parse(fmt.Sprintf("http://%s:%d", "localhost", 8086))
	if err != nil {
		log.Fatal(err)
	}
	con, err := client.NewClient(client.Config{URL: *host})
	if err != nil {
		log.Fatal(err)
	}

	var (
		shapes     = []string{"circle", "rectangle", "square", "triangle"}
		colors     = []string{"red", "blue", "green"}
		sampleSize = 1000
		pts        = make([]client.Point, sampleSize)
	)

	rand.Seed(42)
	for i := 0; i < sampleSize; i++ {
		pts[i] = client.Point{
			Measurement: "shapes",
			Tags: map[string]string{
				"color": strconv.Itoa(rand.Intn(len(colors))),
				"shape": strconv.Itoa(rand.Intn(len(shapes))),
			},
			Fields: map[string]interface{}{
				"value": rand.Intn(sampleSize),
			},
			Time:      time.Now(),
			Precision: "s",
		}
	}

	bps := client.BatchPoints{
		Points:          pts,
		Database:        "BumbeBeeTuna",
		RetentionPolicy: "default",
	}
	_, err = con.Write(bps)
	if err != nil {
		log.Fatal(err)
	}
}
Example #8
0
func ExampleNewClient() {
	host, err := url.Parse(fmt.Sprintf("http://%s:%d", "localhost", 8086))
	if err != nil {
		log.Fatal(err)
	}

	// NOTE: this assumes you've setup a user and have setup shell env variables,
	// namely INFLUX_USER/INFLUX_PWD. If not just ommit Username/Password below.
	conf := client.Config{
		URL:      *host,
		Username: os.Getenv("INFLUX_USER"),
		Password: os.Getenv("INFLUX_PWD"),
	}
	con, err := client.NewClient(conf)
	if err != nil {
		log.Fatal(err)
	}
	log.Println("Connection", con)
}
Example #9
0
func TestClient_Ping(t *testing.T) {
	ts := emptyTestServer()
	defer ts.Close()

	u, _ := url.Parse(ts.URL)
	config := client.Config{URL: *u}
	c, err := client.NewClient(config)
	if err != nil {
		t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
	}
	d, version, err := c.Ping()
	if err != nil {
		t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
	}
	if d == 0 {
		t.Fatalf("expected a duration greater than zero.  actual %v", d)
	}
	if version != "x.x" {
		t.Fatalf("unexpected version.  expected %s,  actual %v", "x.x", version)
	}
}
Example #10
0
func TestClient_Query(t *testing.T) {
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		var data client.Response
		w.WriteHeader(http.StatusOK)
		_ = json.NewEncoder(w).Encode(data)
	}))
	defer ts.Close()

	u, _ := url.Parse(ts.URL)
	config := client.Config{URL: *u}
	c, err := client.NewClient(config)
	if err != nil {
		t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
	}

	query := client.Query{}
	_, err = c.Query(query)
	if err != nil {
		t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
	}
}
Example #11
0
func TestClient_Write(t *testing.T) {
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		var data client.Response
		w.WriteHeader(http.StatusNoContent)
		_ = json.NewEncoder(w).Encode(data)
	}))
	defer ts.Close()

	u, _ := url.Parse(ts.URL)
	config := client.Config{URL: *u}
	c, err := client.NewClient(config)
	if err != nil {
		t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
	}

	bp := client.BatchPoints{}
	r, err := c.Write(bp)
	if err != nil {
		t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
	}
	if r != nil {
		t.Fatalf("unexpected response. expected %v, actual %v", nil, r)
	}
}
Example #12
0
func TestClient_UserAgent(t *testing.T) {
	receivedUserAgent := ""
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		receivedUserAgent = r.UserAgent()

		var data client.Response
		w.WriteHeader(http.StatusOK)
		_ = json.NewEncoder(w).Encode(data)
	}))
	defer ts.Close()

	_, err := http.Get(ts.URL)
	if err != nil {
		t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
	}

	tests := []struct {
		name      string
		userAgent string
		expected  string
	}{
		{
			name:      "Empty user agent",
			userAgent: "",
			expected:  "InfluxDBClient",
		},
		{
			name:      "Custom user agent",
			userAgent: "Test Influx Client",
			expected:  "Test Influx Client",
		},
	}

	for _, test := range tests {
		u, _ := url.Parse(ts.URL)
		config := client.Config{URL: *u, UserAgent: test.userAgent}
		c, err := client.NewClient(config)
		if err != nil {
			t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
		}

		receivedUserAgent = ""
		query := client.Query{}
		_, err = c.Query(query)
		if err != nil {
			t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
		}
		if !strings.HasPrefix(receivedUserAgent, test.expected) {
			t.Fatalf("Unexpected user agent. expected %v, actual %v", test.expected, receivedUserAgent)
		}

		receivedUserAgent = ""
		bp := client.BatchPoints{}
		_, err = c.Write(bp)
		if err != nil {
			t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
		}
		if !strings.HasPrefix(receivedUserAgent, test.expected) {
			t.Fatalf("Unexpected user agent. expected %v, actual %v", test.expected, receivedUserAgent)
		}

		receivedUserAgent = ""
		_, _, err = c.Ping()
		if err != nil {
			t.Fatalf("unexpected error.  expected %v, actual %v", nil, err)
		}
		if receivedUserAgent != test.expected {
			t.Fatalf("Unexpected user agent. expected %v, actual %v", test.expected, receivedUserAgent)
		}
	}
}
Example #13
0
func (self *InfluxDBEngine) GetWindows(query morgoth.Query) ([]*morgoth.Window, error) {

	con, err := client.NewClient(self.conf)
	if err != nil {
		return nil, err
	}

	q := client.Query{
		Command:  query.Command,
		Database: self.database,
	}

	glog.V(3).Infof("Q: %s", query)
	response, err := con.Query(q)
	if err != nil {
		return nil, err
	}
	if response.Err != nil {
		return nil, response.Err
	}
	windowCount := 0
	for _, result := range response.Results {
		if result.Err != nil {
			return nil, result.Err
		}
		windowCount += len(result.Series)
	}
	windows := make([]*morgoth.Window, windowCount)

	glog.V(3).Infof("Results: %v", response.Results)

	i := 0
	for _, result := range response.Results {
		for _, row := range result.Series {
			w := &morgoth.Window{
				Name:  row.Name,
				Data:  make([]float64, len(row.Values)),
				Tags:  row.Tags,
				Start: query.Start,
				Stop:  query.Stop,
			}

			//Find non time column
			if len(row.Columns) != 2 {
				return nil, errors.New("Queries must select only two columns, a time column and a numeric column")
			}
			numberColumn := 0
			for c, name := range row.Columns {
				if name != "time" {
					numberColumn = c
					break
				}
			}

			for j, point := range row.Values {
				//We care only about the value not the time
				//TODO check columns
				value := point[numberColumn]
				if value != nil {
					p := value.(json.Number)
					v, err := p.Float64()
					if err != nil {
						return nil, err
					}
					w.Data[j] = v
				}
			}

			windows[i] = w
			i++
			glog.V(4).Infof("W: %v", w)
		}
	}

	glog.V(3).Infof("Windows: %v", windows)
	return windows, nil
}