func (w *StreamWriter) Write(data []byte) (int, error) {
var err = sse.Encode(w.writer, sse.Event{
Id: strconv.Itoa(w.count),
Event: "message",
Data: string(data),
})
w.writer.Flush()
w.count += len(data)
return len(data), err
}
func (c *conn) Send(msg common.Message) error {
buf := new(bytes.Buffer)
err := sse.Encode(buf, sse.Event{
Event: msg.Name(),
Id: msg.Id(),
Data: msg.Data(),
})
if err != nil {
return err
}
return c.socket.WriteMessage(websocket.TextMessage, buf.Bytes())
}
func GetStream(c *gin.Context) {
repo := session.Repo(c)
buildn, _ := strconv.Atoi(c.Param("build"))
jobn, _ := strconv.Atoi(c.Param("number"))
c.Writer.Header().Set("Content-Type", "text/event-stream")
build, err := store.GetBuildNumber(c, repo, buildn)
if err != nil {
log.Debugln("stream cannot get build number.", err)
c.AbortWithError(404, err)
return
}
job, err := store.GetJobNumber(c, build, jobn)
if err != nil {
log.Debugln("stream cannot get job number.", err)
c.AbortWithError(404, err)
return
}
rc, err := stream.Reader(c, stream.ToKey(job.ID))
if err != nil {
c.AbortWithError(404, err)
return
}
go func() {
<-c.Writer.CloseNotify()
rc.Close()
}()
var line int
var scanner = bufio.NewScanner(rc)
for scanner.Scan() {
line++
var err = sse.Encode(c.Writer, sse.Event{
Id: strconv.Itoa(line),
Event: "message",
Data: scanner.Text(),
})
if err != nil {
break
}
c.Writer.Flush()
}
log.Debugf("Closed stream %s#%d", repo.FullName, build.Number)
}
// GetRepoEvents will upgrade the connection to a Websocket and will stream
// event updates to the browser.
func GetRepoEvents(c *gin.Context) {
repo := session.Repo(c)
c.Writer.Header().Set("Content-Type", "text/event-stream")
eventc := make(chan *bus.Event, 1)
bus.Subscribe(c, eventc)
defer func() {
bus.Unsubscribe(c, eventc)
close(eventc)
log.Infof("closed event stream")
}()
c.Stream(func(w io.Writer) bool {
select {
case event := <-eventc:
if event == nil {
log.Infof("nil event received")
return false
}
// TODO(bradrydzewski) This is a super hacky workaround until we improve
// the actual bus. Having a per-call database event is just plain stupid.
if event.Repo.FullName == repo.FullName {
var payload = struct {
model.Build
Jobs []*model.Job `json:"jobs"`
}{}
payload.Build = event.Build
payload.Jobs, _ = store.GetJobList(c, &event.Build)
data, _ := json.Marshal(&payload)
sse.Encode(w, sse.Event{
Event: "message",
Data: string(data),
})
}
case <-c.Writer.CloseNotify():
return false
}
return true
})
}
// GetRepoEvents will upgrade the connection to a Websocket and will stream
// event updates to the browser.
func GetRepoEvents(c *gin.Context) {
engine_ := context.Engine(c)
repo := session.Repo(c)
c.Writer.Header().Set("Content-Type", "text/event-stream")
eventc := make(chan *engine.Event, 1)
engine_.Subscribe(eventc)
defer func() {
engine_.Unsubscribe(eventc)
close(eventc)
log.Infof("closed event stream")
}()
c.Stream(func(w io.Writer) bool {
select {
case event := <-eventc:
if event == nil {
log.Infof("nil event received")
return false
}
if event.Name == repo.FullName {
log.Debugf("received message %s", event.Name)
sse.Encode(w, sse.Event{
Event: "message",
Data: string(event.Msg),
})
}
case <-c.Writer.CloseNotify():
return false
}
return true
})
}
