/
producer.go
187 lines (171 loc) · 4.05 KB
/
producer.go
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package rabbitmq
import (
"context"
"sync"
"sync/atomic"
"time"
"github.com/go-bamboo/pkg/log"
"github.com/go-bamboo/pkg/rescue"
"github.com/go-kratos/kratos/v2/errors"
"github.com/streadway/amqp"
"go.opentelemetry.io/otel/propagation"
"go.opentelemetry.io/otel/trace"
)
type Sender interface {
Name() string
Send(ctx context.Context, header map[string]interface{}, exchange string, routeKey string, msg []byte) error
Close() error
}
type (
RabbitMqSender struct {
c *ProducerConf
ContentType string
isConnected atomic.Bool
isChannelOpen atomic.Bool
conn *amqp.Connection
channel *amqp.Channel
connCloseErr chan *amqp.Error
channelCloseErr chan *amqp.Error
tracer trace.Tracer
propagator propagation.TextMapPropagator
wg sync.WaitGroup
ctx context.Context
cf context.CancelFunc
}
)
func MustNewSender(c *ProducerConf) Sender {
ctx, cf := context.WithCancel(context.TODO())
sender := &RabbitMqSender{
c: c,
ContentType: c.ContentType,
connCloseErr: make(chan *amqp.Error),
channelCloseErr: make(chan *amqp.Error),
ctx: ctx,
cf: cf,
}
if len(sender.ContentType) <= 0 {
sender.ContentType = "text/plain"
}
if err := sender.connect(); err != nil {
log.Fatal(err)
}
if err := sender.open(); err != nil {
log.Fatal(err)
}
sender.wg.Add(1)
go sender.reconnect()
return sender
}
func (q *RabbitMqSender) Name() string {
return "Sender"
}
func (q *RabbitMqSender) Send(ctx context.Context, header map[string]interface{}, exchange string, routeKey string, msg []byte) error {
if !q.isConnected.Load() {
return ErrorDisconnect("%v", q.c.Rabbit)
}
if !q.isChannelOpen.Load() {
return ErrorChannelClosed("%v", q.c.Rabbit)
}
body := Client(ctx, msg)
err := q.channel.Publish(
exchange,
routeKey,
false,
false,
amqp.Publishing{
Headers: header,
ContentType: q.ContentType,
Body: body,
DeliveryMode: amqp.Persistent,
},
)
if err != nil {
return wrapError(err)
}
log.Debugw("[rabbitmq][sender] push msg", "exchange", exchange, "routeKey", routeKey, "header", header)
return nil
}
func (q *RabbitMqSender) Close() error {
log.Infof("[rabbitmq][sender] stopping ...")
q.cf()
if q.isChannelOpen.Load() {
if err := q.channel.Close(); err != nil {
log.Error(err)
}
}
if q.isConnected.Load() {
if err := q.conn.Close(); err != nil {
log.Error(err)
}
}
q.wg.Wait()
log.Infof("[rabbitmq][sender] stopping.")
return nil
}
func (q *RabbitMqSender) connect() error {
conn, err := amqp.Dial(q.c.Rabbit.URL())
if err != nil {
return err
}
conn.NotifyClose(q.connCloseErr)
q.conn = conn
q.isConnected.Store(true)
log.Infof("[rabbitmq][sender] connected")
return nil
}
func (q *RabbitMqSender) open() error {
if !q.isConnected.Load() {
return ErrorDisconnect("")
}
if q.isChannelOpen.Load() {
return nil
}
channel, err := q.conn.Channel()
if err != nil {
return err
}
channel.NotifyClose(q.channelCloseErr)
q.channel = channel
q.isChannelOpen.Store(true)
log.Infof("[rabbitmq][sender] channel open")
return nil
}
func (q *RabbitMqSender) reconnect() {
defer rescue.Recover(func() {
q.wg.Done()
})
for {
select {
case <-q.ctx.Done():
log.Infof("[rabbitmq][sender] sender reconnect close")
return
case err := <-q.channelCloseErr:
if err != nil && errors.Is(err, amqp.ErrClosed) {
log.Errorf("[rabbitmq][sender] channel close notify: %v", err)
q.isChannelOpen.Store(false)
} else if err != nil {
log.Error(err)
}
case err := <-q.connCloseErr:
if err != nil && errors.Is(err, amqp.ErrClosed) {
log.Errorf("[rabbitmq][sender] conn close notify: %v", err)
q.isConnected.Store(false)
q.isChannelOpen.Store(false)
}
}
if !q.isConnected.Load() {
log.Infof("[rabbitmq][sender] Attempting to connect")
if err := q.connect(); err != nil {
log.Error(err)
} else if err != nil {
log.Error(err)
}
}
if q.isConnected.Load() && !q.isChannelOpen.Load() {
if err := q.open(); err != nil {
log.Error(err)
}
}
time.Sleep(time.Minute)
}
}