/
mongodb_producer.go
63 lines (52 loc) · 1.3 KB
/
mongodb_producer.go
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package producer
import (
"context"
"fmt"
"log"
"time"
"github.com/juliocnsouzadev/kafka-ish/model"
"github.com/juliocnsouzadev/kafka-ish/repository"
"github.com/juliocnsouzadev/kafka-ish/storage"
"go.mongodb.org/mongo-driver/mongo"
)
type MongoDBProducer struct {
client *mongo.Client
repo repository.Repository[model.Message]
}
func NewMongoProducer() *MongoDBProducer {
return &MongoDBProducer{}
}
func (p *MongoDBProducer) initMongoClient() error {
if p.client != nil {
return nil
}
mongoClient, err := storage.ConnectToMongoDB()
if err != nil {
return fmt.Errorf("error connecting to mongoDB: %w", err)
}
p.client = mongoClient
return nil
}
func (p *MongoDBProducer) initRepo() {
if p.repo != nil {
return
}
p.repo = repository.NewMongoMessageRepository(p.client)
}
func (p *MongoDBProducer) Publish(message model.Message) error {
if err := p.initMongoClient(); err != nil {
return fmt.Errorf("error initializing mongoDB client: %w", err)
}
p.initRepo()
return p.repo.Insert(message)
}
func (p *MongoDBProducer) Cancel() {
// create context with timeout to be able to disconnect from mongoDB
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
defer cancel()
defer func() {
if err := p.client.Disconnect(ctx); err != nil {
log.Panic(err)
}
}()
}