Ejemplo n.º 1
0
func sendAck(transp *mockTransport, seq uint32) {
	buf := streambuf.New(nil)
	buf.WriteByte('2')
	buf.WriteByte('A')
	buf.WriteNetUint32(seq)
	transp.sendBytes(buf.Bytes())
}
Ejemplo n.º 2
0
func TestSimpleEvent(t *testing.T) {
	transp := newMockTransport()
	client := newClientTestDriver(
		newLumberjackClient(transp, testMaxWindowSize, 5*time.Second))

	event := common.MapStr{"name": "me", "line": 10}
	client.Publish([]common.MapStr{event})

	// receive window message
	buf := streambuf.New(nil)
	win, err := recvMessage(buf, transp)
	assert.Nil(t, err)

	// receive data message
	msg, err := recvMessage(buf, transp)
	assert.Nil(t, err)

	// send ack
	sendAck(transp, 1)

	// stop test driver
	transp.Close()
	client.Stop()

	// validate
	assert.NotNil(t, win)
	assert.NotNil(t, msg)
	assert.Equal(t, 1, len(msg.events))
	msg = msg.events[0]
	assert.Equal(t, "me", msg.doc["name"])
	assert.Equal(t, 10.0, msg.doc["line"])
}
Ejemplo n.º 3
0
func (c *mockConn) sendACK(seq uint32) {
	buf := streambuf.New(nil)
	buf.WriteByte('2')
	buf.WriteByte('A')
	buf.WriteNetUint32(seq)
	c.conn.Write(buf.Bytes())
}
Ejemplo n.º 4
0
func testCloseAfterWindowSize(t *testing.T, factory clientFactory) {
	enableLogging([]string{"*"})
	server := transptest.NewMockServerTCP(t, 100*time.Millisecond, "", nil)

	sock, transp, err := server.ConnectPair()
	if err != nil {
		t.Fatalf("Failed to connect server and client: %v", err)
	}
	client := factory(transp)
	conn := &mockConn{sock, streambuf.New(nil)}
	defer transp.Close()
	defer sock.Close()
	defer client.Stop()

	client.Publish([]common.MapStr{common.MapStr{
		"type":    "test",
		"message": "hello world",
	}})

	_, err = conn.recvMessage()
	if err != nil {
		t.Fatalf("failed to read window size message: %v", err)
	}

}
Ejemplo n.º 5
0
func (msg *udpMessage) addDatagram(
	header *mcUdpHeader,
	data []byte,
) *streambuf.Buffer {
	if msg.isComplete {
		return nil
	}

	if msg.numDatagrams == 1 {
		msg.isComplete = true
		return streambuf.NewFixed(data)
	}

	if msg.count < msg.numDatagrams {
		if msg.datagrams[header.seqNumber] != nil {
			return nil
		}
		msg.datagrams[header.seqNumber] = data
		msg.count++
	}

	if msg.count < msg.numDatagrams {
		return nil
	}

	buffer := streambuf.New(nil)
	for _, payload := range msg.datagrams {
		buffer.Append(payload)
	}
	msg.isComplete = true
	msg.datagrams = nil
	buffer.Fix()
	return buffer
}
Ejemplo n.º 6
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func newTestParser(tst *testing.T, state parserState) *testParser {
	t := &testParser{
		testing: tst,
		parser:  newParser(&defaultTestParserConfig),
		buf:     streambuf.New(nil),
	}
	return t
}
Ejemplo n.º 7
0
func sockSendACK(out io.Writer, seq uint32) error {
	buf := streambuf.New(nil)
	buf.WriteByte('2')
	buf.WriteByte('A')
	buf.WriteNetUint32(seq)
	_, err := out.Write(buf.Bytes())
	return err
}
Ejemplo n.º 8
0
func prepareBinMessage(
	hdr *binHeader,
	extras []extraFn,
	key valueFn,
	value valueFn,
) (*streambuf.Buffer, error) {
	buf := streambuf.New(nil)
	gen := genBinMessage(hdr, extras, key, value)
	err := gen(buf)
	return buf, err
}
Ejemplo n.º 9
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// NewLine creates a new Line reader object
func NewLine(input io.Reader, codec encoding.Encoding, bufferSize int) (*Line, error) {

	encoder := codec.NewEncoder()

	// Create newline char based on encoding
	nl, _, err := transform.Bytes(encoder, []byte{'\n'})
	if err != nil {
		return nil, err
	}

	return &Line{
		reader:     input,
		codec:      codec,
		bufferSize: bufferSize,
		nl:         nl,
		decoder:    codec.NewDecoder(),
		inBuffer:   streambuf.New(nil),
		outBuffer:  streambuf.New(nil),
	}, nil
}
Ejemplo n.º 10
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func (l *LineReader) init(
	input io.Reader,
	codec encoding.Encoding,
	bufferSize int,
) error {
	l.rawInput = input
	l.codec = codec
	l.bufferSize = bufferSize

	l.codec.NewEncoder()
	nl, _, err := transform.Bytes(l.codec.NewEncoder(), []byte{'\n'})
	if err != nil {
		return err
	}

	l.nl = nl
	l.decoder = l.codec.NewDecoder()
	l.inBuffer = streambuf.New(nil)
	l.outBuffer = streambuf.New(nil)
	return nil
}
Ejemplo n.º 11
0
func testStructuredEvent(t *testing.T, factory clientFactory) {
	enableLogging([]string{"*"})
	server := transptest.NewMockServerTCP(t, 1*time.Second, "", nil)

	sock, transp, err := server.ConnectPair()
	if err != nil {
		t.Fatalf("Failed to connect server and client: %v", err)
	}
	client := factory(transp)
	conn := &mockConn{sock, streambuf.New(nil)}
	defer transp.Close()
	defer sock.Close()

	event := common.MapStr{
		"type": "test",
		"name": "test",
		"struct": common.MapStr{
			"field1": 1,
			"field2": true,
			"field3": []int{1, 2, 3},
			"field4": []interface{}{
				1,
				"test",
				common.MapStr{
					"sub": "field",
				},
			},
			"field5": common.MapStr{
				"sub1": 2,
			},
		},
	}
	client.Publish([]common.MapStr{event})

	win, err := conn.recvMessage()
	assert.Nil(t, err)

	msg, err := conn.recvMessage()
	assert.Nil(t, err)

	conn.sendACK(1)
	defer client.Stop()

	// validate
	assert.NotNil(t, win)
	assert.NotNil(t, msg)
	assert.Equal(t, 1, len(msg.events))
	msg = msg.events[0]
	assert.Equal(t, "test", msg.doc["name"])
	assert.Equal(t, 1.0, msg.doc.get("struct.field1"))
	assert.Equal(t, true, msg.doc.get("struct.field2"))
	assert.Equal(t, 2.0, msg.doc.get("struct.field5.sub1"))
}
Ejemplo n.º 12
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func (s *protocolServer) connectPair(compressLevel int) (*mockConn, *protocol, error) {
	client, transp, err := s.MockServer.ConnectPair()
	if err != nil {
		return nil, nil, err
	}

	proto, err := newClientProcol(transp, 100*time.Millisecond, compressLevel, "test")
	if err != nil {
		return nil, nil, err
	}

	conn := &mockConn{client, streambuf.New(nil)}
	return conn, proto, nil
}
Ejemplo n.º 13
0
func (s *clientServer) connectPair(compressLevel int) (*mockConn, *client, error) {
	client, transp, err := s.mockServer.connectPair(100 * time.Millisecond)
	if err != nil {
		return nil, nil, err
	}

	lc, err := newLumberjackClient(transp, compressLevel,
		defaultMaxWindowSize, 100*time.Millisecond)
	if err != nil {
		return nil, nil, err
	}

	conn := &mockConn{client, streambuf.New(nil)}
	return conn, lc, nil
}
Ejemplo n.º 14
0
func TestStructuredEvent(t *testing.T) {
	transp := newMockTransport()
	client := newClientTestDriver(
		newLumberjackClient(transp, testMaxWindowSize, 5*time.Second))
	event := common.MapStr{
		"name": "test",
		"struct": common.MapStr{
			"field1": 1,
			"field2": true,
			"field3": []int{1, 2, 3},
			"field4": []interface{}{
				1,
				"test",
				common.MapStr{
					"sub": "field",
				},
			},
			"field5": common.MapStr{
				"sub1": 2,
			},
		},
	}
	client.Publish([]common.MapStr{event})

	buf := streambuf.New(nil)
	win, err := recvMessage(buf, transp)
	assert.Nil(t, err)

	msg, err := recvMessage(buf, transp)
	assert.Nil(t, err)

	sendAck(transp, 1)

	transp.Close()
	client.Stop()

	// validate
	assert.NotNil(t, win)
	assert.NotNil(t, msg)
	assert.Equal(t, 1, len(msg.events))
	msg = msg.events[0]
	assert.Equal(t, "test", msg.doc["name"])
	assert.Equal(t, 1.0, msg.doc.get("struct.field1"))
	assert.Equal(t, true, msg.doc.get("struct.field2"))
	assert.Equal(t, 2.0, msg.doc.get("struct.field5.sub1"))
}
Ejemplo n.º 15
0
func testSimpleEvent(t *testing.T, factory clientFactory) {
	enableLogging([]string{"*"})
	server := newMockServerTCP(t, 1*time.Second, "")

	sock, transp, err := server.connectPair(1 * time.Second)
	if err != nil {
		t.Fatalf("Failed to connect server and client: %v", err)
	}
	client := factory(transp)
	conn := &mockConn{sock, streambuf.New(nil)}
	defer transp.Close()
	defer sock.Close()

	event := common.MapStr{"name": "me", "line": 10}
	client.Publish([]common.MapStr{event})

	// receive window message
	err = sock.SetReadDeadline(time.Now().Add(1 * time.Second))
	win, err := conn.recvMessage()
	assert.Nil(t, err)

	// receive data message
	msg, err := conn.recvMessage()
	assert.Nil(t, err)

	// send ack
	conn.sendACK(1)

	client.Stop()

	// validate
	assert.NotNil(t, win)
	assert.NotNil(t, msg)
	assert.Equal(t, 1, len(msg.events))
	msg = msg.events[0]
	assert.Equal(t, "me", msg.doc["name"])
	assert.Equal(t, 10.0, msg.doc["line"])
}
Ejemplo n.º 16
0
func testConnectionType(
	t *testing.T,
	server *mockLSServer,
	makeOutputer func() outputs.BulkOutputer,
) {
	var result struct {
		err       error
		win, data *message
		signal    bool
	}

	var wg struct {
		ready  sync.WaitGroup
		finish sync.WaitGroup
	}

	wg.ready.Add(1)  // server signaling readiness to client worker
	wg.finish.Add(2) // server/client signaling test end

	// server loop
	go func() {
		defer wg.finish.Done()
		wg.ready.Done()

		client := server.accept()
		server.handshake(client)

		buf := streambuf.New(nil)
		result.win = server.readMessage(buf, client)
		result.data = server.readMessage(buf, client)
		server.sendACK(client, 1)
		result.err = server.err
	}()

	// worker loop
	go func() {
		defer wg.finish.Done()
		wg.ready.Wait()

		output := makeOutputer()

		signal := outputs.NewSyncSignal()
		output.PublishEvent(signal, testOptions, testEvent())
		result.signal = signal.Wait()
	}()

	// wait shutdown
	wg.finish.Wait()
	server.Close()

	// validate output
	assert.Nil(t, result.err)
	assert.True(t, result.signal)

	data := result.data
	assert.NotNil(t, result.win)
	assert.NotNil(t, result.data)
	if data != nil {
		assert.Equal(t, 1, len(data.events))
		data = data.events[0]
		assert.Equal(t, 10.0, data.doc["extra"])
		assert.Equal(t, "message", data.doc["message"])
	}

}
Ejemplo n.º 17
0
func testMultiFailMaxTimeouts(t *testing.T, factory clientFactory) {
	enableLogging([]string{"*"})

	server := newMockServerTCP(t, 100*time.Millisecond, "")
	transp, err := server.transp()
	if err != nil {
		t.Fatalf("Failed to connect server and client: %v", err)
	}

	N := 8
	client := factory(transp)
	defer transp.Close()
	defer client.Stop()

	event := common.MapStr{"name": "me", "line": 10}

	for i := 0; i < N; i++ {
		await := server.await()
		err = transp.Connect(100 * time.Millisecond)
		if err != nil {
			t.Fatalf("Transport client Failed to connect: %v", err)
		}
		sock := <-await
		conn := &mockConn{sock, streambuf.New(nil)}

		// close socket only once test has finished
		// so no EOF error can be generated
		defer sock.Close()

		// publish event. With client returning on timeout, we have to send
		// messages again
		client.Publish([]common.MapStr{event})

		// read window
		msg, err := conn.recvMessage()
		if err != nil {
			t.Errorf("Failed receiving window size: %v", err)
			break
		}
		if msg.code != 'W' {
			t.Errorf("expected window size message")
			break
		}

		// read message
		msg, err = conn.recvMessage()
		if err != nil {
			t.Errorf("Failed receiving data message: %v", err)
			break
		}
		if msg.code != 'C' {
			t.Errorf("expected data message")
			break
		}
		// do not respond -> enforce timeout

		// check connection being closed,
		// timeout required in case of sender not closing the connection
		// correctly
		sock.SetDeadline(time.Now().Add(30 * time.Second))
		msg, err = conn.recvMessage()
		if msg != nil {
			t.Errorf("Received message on connection expected to be closed")
			break
		}
		if nerr, ok := err.(net.Error); ok && nerr.Timeout() {
			t.Errorf("Unexpected timeout error (client did not close connection in time?): %v", err)
			break
		}
	}

	client.Stop()

	returns := client.Returns()
	if len(returns) != N {
		t.Fatalf("PublishEvents did not return")
	}

	for _, ret := range returns {
		assert.Equal(t, 0, ret.n)
		assert.NotNil(t, ret.err)
	}
}
Ejemplo n.º 18
0
func readMessage(buf *streambuf.Buffer) (*message, error) {
	if !buf.Avail(2) {
		return nil, nil
	}

	version, _ := buf.ReadNetUint8At(0)
	if version != '2' {
		return nil, errors.New("version error")
	}

	code, _ := buf.ReadNetUint8At(1)
	switch code {
	case 'W':
		if !buf.Avail(6) {
			return nil, nil
		}
		size, _ := buf.ReadNetUint32At(2)
		buf.Advance(6)
		buf.Reset()
		return &message{code: code, size: size}, buf.Err()
	case 'C':
		if !buf.Avail(6) {
			return nil, nil
		}
		len, _ := buf.ReadNetUint32At(2)
		if !buf.Avail(int(len) + 6) {
			return nil, nil
		}
		buf.Advance(6)

		tmp, _ := buf.Collect(int(len))
		buf.Reset()

		dataBuf := streambuf.New(nil)
		// decompress data
		decomp, err := zlib.NewReader(streambuf.NewFixed(tmp))
		if err != nil {
			return nil, err
		}
		// dataBuf.ReadFrom(streambuf.NewFixed(tmp))
		dataBuf.ReadFrom(decomp)
		decomp.Close()

		// unpack data
		dataBuf.Fix()
		var events []*message
		for dataBuf.Len() > 0 {
			version, _ := dataBuf.ReadNetUint8()
			if version != '2' {
				return nil, errors.New("version error 2")
			}

			code, _ := dataBuf.ReadNetUint8()
			if code != 'J' {
				return nil, errors.New("expected json data frame")
			}

			seq, _ := dataBuf.ReadNetUint32()
			payloadLen, _ := dataBuf.ReadNetUint32()
			jsonRaw, _ := dataBuf.Collect(int(payloadLen))

			var doc interface{}
			err = json.Unmarshal(jsonRaw, &doc)
			if err != nil {
				return nil, err
			}

			events = append(events, &message{
				code: code,
				seq:  seq,
				doc:  doc.(map[string]interface{}),
			})
		}
		return &message{code: 'C', events: events}, nil
	default:
		return nil, errors.New("unknown code")
	}
}