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Implementing the producer side and breaking out common topology bits

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This commit is contained in:
Dan Buch 2012-11-15 00:05:44 -05:00
parent 46933f0611
commit 3fed0c2e4e
4 changed files with 88 additions and 18 deletions
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3
sylvilagus/go/Makefile
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@ -2,7 +2,8 @@ CLEAN_GOPATH := $(shell echo $(GOPATH) | tr ":" "\n" | grep -v '^$$' | grep -v $
GOPATH := $(PWD):$(CLEAN_GOPATH)
PACKAGES := \
meatballhat.com/sylvilagus-conntest \
meatballhat.com/sylvilagus-chapter02-hello-world-consumer
meatballhat.com/sylvilagus-chapter02-hello-world-consumer \
meatballhat.com/sylvilagus-chapter02-hello-world-producer
export GOPATH

20
sylvilagus/go/src/meatballhat.com/sylvilagus-chapter02-hello-world-consumer/main.go
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@ -6,6 +6,7 @@ import (
import (
"github.com/streadway/amqp"
"meatballhat.com/sylvilagus"
)
func main() {
@ -16,24 +17,9 @@ func main() {
defer connection.Close()
channel, err := connection.Channel()
channel, err := sylvilagus.CreateHelloTopology(connection)
if err != nil {
log.Fatal("Failed to get channel!: ", err)
}
err = channel.ExchangeDeclare("hello-exchange", "direct", true, false, false, false, nil)
if err != nil {
log.Fatal("Failed to declare exchange!: ", err)
}
_, err = channel.QueueDeclare("hello-queue", false, false, false, false, nil)
if err != nil {
log.Fatal("Failed to declare queue!: ", err)
}
err = channel.QueueBind("hello-queue", "hola", "hello-exchange", false, nil)
if err != nil {
log.Fatal("Failed to bind to queue!: ", err)
log.Fatal("Failed to build topology!: ", err)
}
hellos, err := channel.Consume("hello-queue", "hello-consumer", false, false, false, false, nil)

46
sylvilagus/go/src/meatballhat.com/sylvilagus-chapter02-hello-world-producer/main.go Normal file
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@ -0,0 +1,46 @@
package main
import (
"log"
"os"
"time"
)
import (
"github.com/streadway/amqp"
"meatballhat.com/sylvilagus"
)
func main() {
if len(os.Args) < 2 {
log.Fatal("You must provide a message as first arg!")
}
msgBody := string(os.Args[1])
connection, err := amqp.Dial("amqp://guest:guest@localhost:5672")
if err != nil {
log.Fatal("Failed to connect!: ", err)
}
defer connection.Close()
channel, err := sylvilagus.CreateHelloTopology(connection)
if err != nil {
log.Fatal("Failed to build topology!: ", err)
}
msg := amqp.Publishing{
DeliveryMode: amqp.Persistent,
Timestamp: time.Now(),
ContentType: "text/plain",
Body: []byte(msgBody),
}
err = channel.Publish("hello-exchange", "hola", false, false, msg)
if err != nil {
log.Fatal("Failed to publish message!: ", err)
} else {
log.Printf("Published '%v'\n", msgBody)
}
}

37
sylvilagus/go/src/meatballhat.com/sylvilagus/hello.go Normal file
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@ -0,0 +1,37 @@
package sylvilagus
import (
"log"
)
import (
"github.com/streadway/amqp"
)
func CreateHelloTopology(connection *amqp.Connection) (*amqp.Channel, error) {
channel, err := connection.Channel()
if err != nil {
log.Println("Failed to get channel!: ", err)
return nil, err
}
err = channel.ExchangeDeclare("hello-exchange", "direct", true, false, false, false, nil)
if err != nil {
log.Println("Failed to declare exchange!: ", err)
return nil, err
}
_, err = channel.QueueDeclare("hello-queue", false, false, false, false, nil)
if err != nil {
log.Println("Failed to declare queue!: ", err)
return nil, err
}
err = channel.QueueBind("hello-queue", "hola", "hello-exchange", false, nil)
if err != nil {
log.Println("Failed to bind to queue!: ", err)
return nil, err
}
return channel, nil
}