func putToTube(t *beanstalk.Tube, args []string) {
var data []byte
var pri uint32
var delay time.Duration
ttr := 30 * time.Second
switch len(args) {
case 4:
if ttrSecs, err := strconv.Atoi(args[3]); err == nil {
ttr = time.Duration(ttrSecs) * time.Second
}
fallthrough
case 3:
if delaySecs, err := strconv.Atoi(args[2]); err == nil {
delay = time.Duration(delaySecs) * time.Second
}
fallthrough
case 2:
if pri64, err := strconv.ParseUint(args[1], 10, 32); err == nil {
pri = uint32(pri64)
}
fallthrough
case 1:
data = []byte(args[0])
}
id, err := t.Put(data, pri, delay, ttr)
if err != nil {
fmt.Println(err)
os.Exit(4)
}
fmt.Printf("Job was put to tube %s with pri=%d, delay=%v, ttr=%v. Job ID: %d\n", t.Name, pri, delay, ttr, id)
}
func (b *beanstalkdQ) Put(m *Message, delay time.Duration) error {
conn, err := connection()
if err != nil {
return err
}
var buf bytes.Buffer
err = gob.NewEncoder(&buf).Encode(m)
if err != nil {
return err
}
tube := beanstalk.Tube{Conn: conn, Name: b.name}
_, err = tube.Put(buf.Bytes(), 1, delay, ttr)
return err
}
// Send the job off to a beanstalkd
// handle reconnect if needed while we have the SubmitLock
func Submit(job *CronJob) {
logDebug("submitting:", fmt.Sprintf("%#v", job))
SubmitLock.Lock()
defer SubmitLock.Unlock()
// previous reconnect failed, so we're nil here
if BeanstalkdConn == nil {
log.Println("not connected to a beanstalkd server")
if err := connectBeanstalkd(); err != nil {
return
}
}
// loop if we need to reconnect
for i := 0; i < 2; i++ {
tube := beanstalk.Tube{
BeanstalkdConn,
job.Tube,
}
_, err := tube.Put([]byte(job.Body), job.Priority, 0, time.Duration(job.Ttr)*time.Second)
if _, ok := err.(beanstalk.ConnError); ok {
log.Println(err)
// attempt to reconnect on a Connection Error
if err := connectBeanstalkd(); err != nil {
// abort if we can't reconnect
return
}
// try submitting again
continue
}
// something besides a ConnError
if err != nil {
// anything else is fatal
log.Println("error submitting job:", err)
return
}
// we're OK now
logDebug("submitted:", job)
// make an attempt to set last_submit in redis
if RedisConn != nil {
RedisConn.Do("HSET", job.Key, "last_submit", time.Now().UTC().Format(time.RFC3339))
}
return
}
}
func (c *PutCommand) Put() error {
t := beanstalk.Tube{c.conn, c.Tube}
id, err := t.Put([]byte(c.Body), c.Priority, c.Delay, c.TTR)
if err != nil {
return err
}
fmt.Printf(
"Added job with id %d to %s with priority %d, delay %s, TTR %d\n",
id, c.Tube, c.Priority, c.Delay.String(), c.TTR,
)
return nil
}
func queueJob(body string, priority uint32, ttr time.Duration) (string, uint64) {
r := rand.New(rand.NewSource(time.Now().UnixNano()))
tubeName := "cmdstalk-test-" + strconv.FormatInt(r.Int63(), 16)
assertTubeEmpty(tubeName)
c, err := beanstalk.Dial("tcp", address)
if err != nil {
log.Fatal(err)
}
tube := beanstalk.Tube{Conn: c, Name: tubeName}
id, err := tube.Put([]byte(body), priority, 0, ttr)
if err != nil {
log.Fatal(err)
}
return tubeName, id
}
// Satisfies the Listener interface and places the event on an AWS SQS
func (this *Beanstalkd) Exec(evt event.Event) {
this.Log.Handler(this, &evt)
conStr := fmt.Sprintf("%s:%d", this.Config.GetHost(), this.Config.GetPort())
msg := magicString(this.Config.GetMessage(), evt)
tube := magicString(this.Config.GetTube(), evt)
c, err := beanstalk.Dial("tcp", conStr)
t := beanstalk.Tube{c, tube}
if err != nil {
this.Log.Error(err.Error())
return
}
_, err = t.Put([]byte(msg), 1025, 0, 120*time.Hour)
if err != nil {
this.Log.Error(err.Error())
return
}
}
func beanstalkWriter() error {
bean, err := beanstalk.Dial("tcp", "127.0.0.1:11300")
if err != nil {
return fmt.Errorf("Could not connect to beanstalkd: %s", err)
}
tube := beanstalk.Tube{bean, "v6-results"}
for {
js, ok := <-beanCh
if !ok {
return fmt.Errorf("Could not read from channel")
}
_, err := tube.Put(js, 100, 0, 120*time.Second)
if err != nil {
return fmt.Errorf("Could not put job: %s", err)
}
}
}
// Send a unit of work to a worker. 'workerTube' determines the
// tube that will respond to incoming work. 'feedback' is lets the caller
// determine if a response is expected. 'options' is an optional parameter
// to configure the beanstalkd interaction, otherwise, the default options
// will be used.
func Send(tube string, data interface{}, feedback bool, options *Options) ([]byte, error) {
if options == nil {
options = defaultOptions
}
// put together our request data
req := &struct {
Data interface{} `json:"data"`
Feedback bool `json:"feedback"`
}{
Data: data,
Feedback: feedback,
}
// marshal the data into a payload
jsonReq, err := json.Marshal(req)
if err != nil {
return nil, ErrJSONMarshal
}
// connect to beanstalkd
beanConn, err := beanstalk.Dial("tcp", options.Host)
if err != nil {
return nil, ErrBeanstalkConnect
}
defer beanConn.Close()
// configure conn for send tube
workerTube := beanstalk.Tube{beanConn, tube}
// send it
jobID, err := workerTube.Put(jsonReq, options.Priority, options.Delay, options.TTR)
if err != nil {
return nil, ErrUnableToSend
}
// no response -- all done with the send
if !feedback {
return nil, nil
}
var (
resTube = tube + "_" + strconv.FormatUint(jobID, 10)
watch = beanstalk.NewTubeSet(beanConn, resTube)
id uint64
msg []byte
start = time.Now()
)
// wait for a response from the worker
for {
id, msg, err = watch.Reserve(options.Reserve)
if err != nil {
cerr, ok := err.(beanstalk.ConnError)
if ok && cerr.Err == beanstalk.ErrTimeout {
if time.Since(start) > options.Wait {
return nil, ErrNoResponse
}
continue
} else {
return nil, err
}
}
break
}
// delete the job
beanConn.Delete(id)
// handle the response
resp := &struct {
Error string `json:"error"`
Data json.RawMessage `json:"data"`
}{}
err = json.Unmarshal(msg, resp)
if err != nil {
return nil, err
} else if len(resp.Error) > 0 {
return nil, errors.New(resp.Error)
}
// success!
return resp.Data, nil
}