forked from evergreen-ci/evergreen
/
event_metajob.go
233 lines (195 loc) · 5.56 KB
/
event_metajob.go
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package units
import (
"context"
"fmt"
"time"
"github.com/evergreen-ci/evergreen"
"github.com/evergreen-ci/evergreen/model/event"
"github.com/evergreen-ci/evergreen/model/notification"
"github.com/evergreen-ci/evergreen/model/trigger"
"github.com/mongodb/amboy"
"github.com/mongodb/amboy/dependency"
"github.com/mongodb/amboy/job"
"github.com/mongodb/amboy/registry"
"github.com/mongodb/grip"
"github.com/mongodb/grip/message"
"github.com/mongodb/grip/sometimes"
"github.com/pkg/errors"
)
const (
eventMetaJobName = "event-metajob"
)
func init() {
registry.AddJobType(eventMetaJobName, func() amboy.Job { return makeEventMetaJob() })
}
func notificationIsEnabled(flags *evergreen.ServiceFlags, n *notification.Notification) bool {
switch n.Subscriber.Type {
case event.GithubPullRequestSubscriberType:
return !flags.GithubStatusAPIDisabled
case event.JIRAIssueSubscriberType, event.JIRACommentSubscriberType:
return !flags.JIRANotificationsDisabled
case event.EvergreenWebhookSubscriberType:
return !flags.WebhookNotificationsDisabled
case event.EmailSubscriberType:
return !flags.EmailNotificationsDisabled
case event.SlackSubscriberType:
return !flags.SlackNotificationsDisabled
default:
grip.Alert(message.Fields{
"message": "notificationIsEnabled saw unknown subscriber type",
"cause": "programmer error",
})
}
return false
}
type eventMetaJob struct {
job.Base `bson:"job_base" json:"job_base" yaml:"job_base"`
q amboy.Queue
events []event.EventLogEntry
flags *evergreen.ServiceFlags
}
func makeEventMetaJob() *eventMetaJob {
j := &eventMetaJob{
Base: job.Base{
JobType: amboy.JobType{
Name: eventMetaJobName,
Version: 0,
},
},
}
j.SetDependency(dependency.NewAlways())
j.SetPriority(1)
return j
}
func NewEventMetaJob(q amboy.Queue, ts string) amboy.Job {
j := makeEventMetaJob()
j.q = q
j.SetID(fmt.Sprintf("%s:%s", eventMetaJobName, ts))
return j
}
func tryProcessOneEvent(e *event.EventLogEntry) (n []notification.Notification, err error) {
if e == nil {
return nil, errors.New("nil event")
}
defer func() {
if r := recover(); r != nil {
n = nil
err = errors.Errorf("panicked while processing event %s", e.ID)
grip.Alert(message.WrapError(err, message.Fields{
"job": eventMetaJobName,
"source": "events-processing",
"event_id": e.ID,
"event_type": e.ResourceType,
"panic_value": r,
}))
}
}()
n, err = trigger.NotificationsFromEvent(e)
grip.Info(message.Fields{
"job": eventMetaJobName,
"source": "events-processing",
"message": "event processed",
"event_id": e.ID,
"event_type": e.ResourceType,
"notifications": len(n),
})
grip.Error(message.WrapError(err, message.Fields{
"job": eventMetaJobName,
"source": "events-processing",
"message": "errors processing triggers for event",
"event_id": e.ID,
"event_type": e.ResourceType,
}))
return n, err
}
func (j *eventMetaJob) dispatchLoop(ctx context.Context) error {
// TODO: if this is a perf problem, it could be multithreaded. For now,
// we just log time
startTime := time.Now()
bulk, err := notification.BulkInserter(ctx)
if err != nil {
return errors.WithStack(err)
}
logger := event.NewDBEventLogger(event.AllLogCollection)
catcher := grip.NewSimpleCatcher()
notifications := make([][]notification.Notification, len(j.events))
for i := range j.events {
notifications[i], err = tryProcessOneEvent(&j.events[i])
catcher.Add(err)
for _, n := range notifications[i] {
catcher.Add(bulk.Append(n))
}
}
catcher.Add(bulk.Close())
for idx := range notifications {
catcher.Add(j.dispatch(notifications[idx]))
catcher.Add(logger.MarkProcessed(&j.events[idx]))
}
endTime := time.Now()
totalDuration := endTime.Sub(startTime)
grip.Info(message.Fields{
"job_id": j.ID(),
"job": eventMetaJobName,
"source": "events-processing",
"message": "stats",
"start_time": startTime.String(),
"end_time": endTime.String(),
"duration": totalDuration.String(),
"n": len(j.events),
})
return catcher.Resolve()
}
func (j *eventMetaJob) dispatch(notifications []notification.Notification) error {
catcher := grip.NewSimpleCatcher()
for i := range notifications {
if notificationIsEnabled(j.flags, ¬ifications[i]) {
catcher.Add(j.q.Put(newEventNotificationJob(notifications[i].ID)))
} else {
catcher.Add(notifications[i].MarkError(errors.New("sender disabled")))
}
}
return catcher.Resolve()
}
func (j *eventMetaJob) Run(ctx context.Context) {
var cancel context.CancelFunc
ctx, cancel = context.WithCancel(ctx)
defer cancel()
defer j.MarkComplete()
if j.q == nil {
env := evergreen.GetEnvironment()
j.q = env.RemoteQueue()
}
if j.q == nil || !j.q.Started() {
j.AddError(errors.New("evergreen environment not setup correctly"))
return
}
var err error
j.flags, err = evergreen.GetServiceFlags()
if err != nil {
j.AddError(errors.Wrap(err, "error retrieving admin settings"))
return
}
if j.flags.EventProcessingDisabled {
grip.InfoWhen(sometimes.Percent(evergreen.DegradedLoggingPercent), message.Fields{
"job": eventMetaJobName,
"message": "events processing is disabled",
})
return
}
j.events, err = event.FindUnprocessedEvents()
if err != nil {
j.AddError(err)
return
}
if len(j.events) == 0 {
grip.Info(message.Fields{
"job_id": j.ID(),
"job": eventMetaJobName,
"time": time.Now().String(),
"message": "no events need to be processed",
"source": "events-processing",
})
return
}
j.AddError(j.dispatchLoop(ctx))
}