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repository.go
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repository.go
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package mongo
import (
"context"
"fmt"
"time"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/bson/primitive"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
"k8s.io/utils/pointer"
"github.com/Bio-OS/bioos/internal/context/workspace/infrastructure/eventbus"
)
const EventCollection = "events"
type eventRepository struct {
collection *mongo.Collection
dequeueTimeout time.Duration
runningTimeout time.Duration
}
var _ eventbus.EventRepository = &eventRepository{}
func NewEventRepository(ctx context.Context, db *mongo.Database, dequeueTimeout time.Duration, runningTimeout time.Duration) (eventbus.EventRepository, error) {
collection := db.Collection(EventCollection)
if _, err := collection.Indexes().CreateMany(ctx, []mongo.IndexModel{
{Keys: bson.M{"id": 1}, Options: options.Index().SetUnique(true)},
}); err != nil {
return nil, err
}
return &eventRepository{
collection: db.Collection(EventCollection),
dequeueTimeout: dequeueTimeout,
runningTimeout: runningTimeout,
}, nil
}
func (repo *eventRepository) Get(ctx context.Context, id string) (*eventbus.Event, error) {
filter := bson.M{"id": id}
var event Event
err := repo.collection.FindOne(ctx, filter).Decode(&event)
if err != nil {
if err == mongo.ErrNoDocuments {
return nil, eventbus.ErrEventNotFound
}
return nil, err
}
return eventPOToEventDO(&event), nil
}
func (repo *eventRepository) UpdateRetryCount(ctx context.Context, event *eventbus.Event, retryCount int) error {
filter := bson.M{"id": event.EventID}
update := bson.M{"$set": bson.M{"retryCount": retryCount, "deletedAt": time.Now()}}
_, err := repo.collection.UpdateOne(ctx, filter, update)
if err != nil {
return err
}
return nil
}
func (repo *eventRepository) Save(ctx context.Context, event *eventbus.Event) error {
e := eventDOToEventPO(event)
filter := bson.M{
"id": e.EventID,
"type": e.Type,
"status": e.Status,
"reason": e.Reason,
"payload": e.Payload,
"retryCount": e.RetryCount,
"createdAt": e.CreatedAt,
"updatedAt": e.UpdatedAt,
"scheduledAt": e.ScheduledAt,
"deletedAt": e.DeletedAt,
}
update := bson.M{"$set": filter}
_, err := repo.collection.UpdateOne(ctx, filter, update, &options.UpdateOptions{
Upsert: pointer.Bool(true),
})
if err != nil {
return err
}
return nil
}
func (repo *eventRepository) ListAndLockUnfinishedEvents(ctx context.Context, limit int, eventTypes []string) ([]*eventbus.Event, error) {
now := time.Now()
var filter = bson.M{}
if len(eventTypes) != 0 {
filter["type"] = bson.M{"$in": eventTypes}
}
filter["$or"] = bson.A{
bson.M{"scheduledAt": bson.M{"$lte": primitive.NewDateTimeFromTime(now)}, "status": eventbus.EventStatusPending},
bson.M{"updatedAt": bson.M{"$lte": primitive.NewDateTimeFromTime(now.Add(-repo.dequeueTimeout))}, "status": eventbus.EventStatusDequeue},
bson.M{"updatedAt": bson.M{"$lte": primitive.NewDateTimeFromTime(now.Add(-repo.runningTimeout))}, "status": eventbus.EventStatusRunning},
}
findOptions := options.Find().SetSort(bson.M{"updatedAt": -1}).SetSort(bson.M{"scheduledAt": 1}).SetLimit(int64(limit))
cursor, err := repo.collection.Find(ctx, filter, findOptions)
if err != nil {
return nil, err
}
defer cursor.Close(ctx)
var events []*Event
if err = cursor.All(ctx, &events); err != nil {
return nil, err
}
var session mongo.Session
session, err = repo.collection.Database().Client().StartSession()
if err != nil {
return nil, err
}
err = session.StartTransaction()
if err != nil {
return nil, err
}
err = mongo.WithSession(ctx, session, func(sc mongo.SessionContext) error {
for i := range events {
var result *mongo.UpdateResult
var err error
switch events[i].Status {
case eventbus.EventStatusPending:
updateFilter := bson.M{"scheduledAt": bson.M{"$lte": primitive.NewDateTimeFromTime(now)}, "status": eventbus.EventStatusPending}
update := bson.M{"status": eventbus.EventStatusDequeue, "updated_at": primitive.NewDateTimeFromTime(now)}
result, err = repo.collection.UpdateOne(sc, updateFilter, bson.M{"$set": update})
case eventbus.EventStatusDequeue:
updateFilter := bson.M{"updatedAt": bson.M{"$lte": primitive.NewDateTimeFromTime(now.Add(-repo.dequeueTimeout))}, "status": eventbus.EventStatusDequeue}
update := bson.M{"updatedAt": primitive.NewDateTimeFromTime(now)}
result, err = repo.collection.UpdateOne(sc, updateFilter, bson.M{"$set": update})
case eventbus.EventStatusRunning:
updateFilter := bson.M{"updatedAt": bson.M{"$lte": primitive.NewDateTimeFromTime(now.Add(-repo.runningTimeout))}, "status": eventbus.EventStatusRunning}
update := bson.M{"updatedAt": primitive.NewDateTimeFromTime(now)}
result, err = repo.collection.UpdateOne(sc, updateFilter, bson.M{"$set": update})
default:
err = fmt.Errorf("unsupport status %s", events[i].Status)
}
if err != nil {
return err
}
if result.MatchedCount != 1 || result.ModifiedCount != 1 {
return fmt.Errorf("update failed, expected 1 but got %d", result.MatchedCount)
}
}
return session.CommitTransaction(sc)
})
session.EndSession(ctx)
if err != nil {
return nil, err
}
var result []*eventbus.Event
for i := range events {
result = append(result, eventPOToEventDO(events[i]))
}
return result, nil
}
func (repo *eventRepository) UpdateStatus(ctx context.Context, event *eventbus.Event, status string) error {
filter := bson.M{"id": event.EventID}
update := bson.M{"$set": bson.M{"status": status, "updatedAt": time.Now()}}
_, err := repo.collection.UpdateOne(ctx, filter, update)
if err != nil {
return err
}
return nil
}
func (repo *eventRepository) Search(ctx context.Context, filter *eventbus.Filter) ([]*eventbus.Event, error) {
cursor, err := repo.collection.Find(ctx, getFilter(filter))
if err != nil {
return nil, err
}
var result []*eventbus.Event
for cursor.Next(ctx) {
var event Event
if err := cursor.Decode(&event); err != nil {
return nil, err
}
eventDO := eventPOToEventDO(&event)
result = append(result, eventDO)
}
return result, nil
}
func getFilter(filter *eventbus.Filter) bson.M {
res := bson.M{}
if filter != nil {
if len(filter.Payload) > 0 {
res["payload"] = bson.M{"$regex": filter.Payload, "$options": ""}
}
if len(filter.Type) > 0 {
res["type"] = bson.M{"$in": filter.Type}
}
if len(filter.Status) > 0 {
res["status"] = bson.M{"$in": filter.Status}
}
}
return res
}