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amqp.go
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/
amqp.go
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package main
import (
"github.com/streadway/amqp"
"log"
"time"
)
type AmqpWrapper struct {
url string
connection *amqp.Connection
channel *amqp.Channel
}
func NewAmqpWrapper(url string) *AmqpWrapper {
return &AmqpWrapper{
url: url,
}
}
func (a *AmqpWrapper) Connect() error {
connection, err := amqp.Dial(a.url)
if err != nil {
return err
}
channel, err := connection.Channel()
if err != nil {
return err
}
a.connection = connection
a.channel = channel
if err := a.defineExchange(); err != nil {
return err
}
return nil
}
func (a *AmqpWrapper) reconnect() {
for {
if err := a.Connect(); err != nil {
log.Println("ERR [AmqpWrapper::Reconnect]", err)
time.Sleep(1 * time.Second)
}
}
}
func (a *AmqpWrapper) defineExchange() error {
return a.channel.ExchangeDeclare(*EXCHANGE_NAME, "fanout", true, false, false, false, nil)
}
// Auto-reconnects and auto-retries
func (a *AmqpWrapper) Publish(message *amqp.Publishing) {
for {
log.Println("DEBUG [AmqpWrapper::Publish] Publishing message")
if err := a.channel.Publish(*EXCHANGE_NAME, "", false, false, *message); err != nil {
log.Println("WARN [AmqpWrapper::Publish]", err)
a.reconnect()
} else {
break
}
}
}