func TestListenerLoader(t *testing.T) {
listenFrom := &config.ListenFrom{
ListenAddr: workarounds.GolangDoesnotAllowPointerToStringLiteral("127.0.0.1:0"),
ServerAcceptDeadline: workarounds.GolangDoesnotAllowPointerToTimeLiteral(time.Millisecond),
}
ctx := context.Background()
forwardTo := dptest.NewBasicSink()
listener, err := ListenerLoader(ctx, forwardTo, listenFrom)
defer listener.Close()
assert.Equal(t, nil, err, "Should be ok to make")
defer listener.Close()
listeningDialAddress := fmt.Sprintf("127.0.0.1:%d", nettest.TCPPort(listener.psocket))
assert.Equal(t, numStats, len(listener.Stats()), "Should have no stats")
assert.NoError(t, err, "Should be ok to make")
conn, err := net.Dial("tcp", listeningDialAddress)
assert.NoError(t, err, "Should be ok to make")
assert.Equal(t, int64(0), listener.stats.invalidDatapoints)
var buf bytes.Buffer
fmt.Fprintf(&buf, "%s %d %d\n\nINVALIDLINE", "ametric", 2, 2)
_, err = buf.WriteTo(conn)
conn.Close()
assert.Equal(t, nil, err, "Should be ok to write")
dp := forwardTo.Next()
assert.Equal(t, "ametric", dp.Metric, "Should be metric")
i := dp.Value.(datapoint.IntValue).Int()
assert.Equal(t, int64(2), i, "Should get 2")
for atomic.LoadInt64(&listener.stats.retriedListenErrors) == 0 {
time.Sleep(time.Millisecond)
}
assert.Equal(t, int64(1), atomic.LoadInt64(&listener.stats.invalidDatapoints))
}
for _, jsonDatapoint := range datapoints {
v, err := ValueToValue(jsonDatapoint.Value)
if err != nil {
log.WithField("err", err).Warn("Unable to get value for datapoint")
} else {
dp := datapoint.New(jsonDatapoint.Metric, jsonDatapoint.Dimensions, v, fromMT(com_signalfx_metrics_protobuf.MetricType(mt)), fromTs(jsonDatapoint.Timestamp))
dps = append(dps, dp)
}
}
}
return decoder.Sink.AddDatapoints(ctx, dps)
}
var defaultConfig = &config.ListenFrom{
ListenAddr: workarounds.GolangDoesnotAllowPointerToStringLiteral("127.0.0.1:12345"),
TimeoutDuration: workarounds.GolangDoesnotAllowPointerToTimeLiteral(time.Second * 30),
Name: workarounds.GolangDoesnotAllowPointerToStringLiteral("signalfxlistener"),
JSONEngine: workarounds.GolangDoesnotAllowPointerToStringLiteral("native"),
}
// ListenerLoader loads a listener for signalfx protocol from config
func ListenerLoader(ctx context.Context, sink dpsink.Sink, listenFrom *config.ListenFrom) (*ListenerServer, error) {
structdefaults.FillDefaultFrom(listenFrom, defaultConfig)
log.WithField("listenFrom", listenFrom).Info("Creating signalfx listener using final config")
return StartServingHTTPOnPort(ctx, sink, *listenFrom.ListenAddr, *listenFrom.TimeoutDuration, *listenFrom.Name)
}
type jsonMarshalStub func(v interface{}) ([]byte, error)
type metricHandler struct {
atomic.AddInt64(&listener.stats.retriedListenErrors, 1)
log.Debug("Timeout (or temp) waiting for connection. Expected, will continue")
continue
}
}
log.WithField("err", err).Info("Unable to accept a socket connection")
return
}
go listener.handleConnection(conn)
}
}
var defaultListenerConfig = &config.ListenFrom{
ListenAddr: workarounds.GolangDoesnotAllowPointerToStringLiteral("127.0.0.1:2003"),
Name: workarounds.GolangDoesnotAllowPointerToStringLiteral("carbonlistener"),
TimeoutDuration: workarounds.GolangDoesnotAllowPointerToTimeLiteral(time.Second * 30),
MetricDeconstructor: workarounds.GolangDoesnotAllowPointerToStringLiteral(""),
MetricDeconstructorOptions: workarounds.GolangDoesnotAllowPointerToStringLiteral(""),
ServerAcceptDeadline: workarounds.GolangDoesnotAllowPointerToTimeLiteral(time.Second),
}
// ListenerLoader loads a listener for the carbon/graphite protocol from config
func ListenerLoader(ctx context.Context, sink dpsink.Sink, listenFrom *config.ListenFrom) (*Listener, error) {
structdefaults.FillDefaultFrom(listenFrom, defaultListenerConfig)
conf := listenerConfig{
serverAcceptDeadline: *listenFrom.ServerAcceptDeadline,
connectionTimeout: *listenFrom.TimeoutDuration,
name: *listenFrom.Name,
}
// *listenFrom.Name
return NewListener(
