func (l LevelDBDriver) Save(job *driver.Job) (err error) {
defer l.RWLocker.Unlock()
l.RWLocker.Lock()
batch := new(leveldb.Batch)
var isNew = true
if job.Id > 0 {
isNew = false
} else {
last_id, e := l.db.Get([]byte(PRE_SEQUENCE+"JOB"), nil)
if e != nil || last_id == nil {
job.Id = 1
} else {
id, _ := strconv.ParseInt(string(last_id), 10, 64)
job.Id = id + 1
}
}
var strId = strconv.FormatInt(job.Id, 10)
if isNew {
batch.Put([]byte(PRE_SEQUENCE+"JOB"), []byte(strId))
batch.Put([]byte(PRE_JOB_FUNC+job.Func+":"+job.Name), []byte(strId))
} else {
old, e := l.get(job.Id)
if e != nil || old.Id == 0 {
err = errors.New(fmt.Sprintf("Update Job %d fail, the old job is not exists.", job.Id))
return
}
l.cache.Remove(PRE_JOB + strId)
if old.Name != job.Name {
batch.Delete([]byte(PRE_JOB_FUNC + job.Func + ":" + old.Name))
batch.Put([]byte(PRE_JOB_FUNC+job.Func+":"+job.Name), []byte(strId))
}
}
batch.Put([]byte(PRE_JOB+strId), job.Bytes())
err = l.db.Write(batch, nil)
return
}
func (client *Client) HandleSubmitJob(msgId int64, payload []byte) (err error) {
var job driver.Job
var e error
var conn = client.conn
var sched = client.sched
defer sched.JobLocker.Unlock()
sched.JobLocker.Lock()
job, e = driver.NewJob(payload)
if e != nil {
err = conn.Send([]byte(e.Error()))
return
}
is_new := true
changed := false
job.Status = driver.JOB_STATUS_READY
oldJob, e := sched.driver.GetOne(job.Func, job.Name)
if e == nil && oldJob.Id > 0 {
job.Id = oldJob.Id
if oldJob.Status == driver.JOB_STATUS_PROC {
sched.DecrStatProc(oldJob)
sched.removeRevertPQ(job)
changed = true
}
is_new = false
}
e = sched.driver.Save(&job)
if e != nil {
err = conn.Send([]byte(e.Error()))
return
}
if is_new {
sched.IncrStatJob(job)
}
if is_new || changed {
sched.pushJobPQ(job)
}
sched.NotifyJobTimer()
err = client.HandleCommand(msgId, protocol.SUCCESS)
return
}