Set message durable as default (#46)

* set message durable as default
* related to rabbitmq/rabbitmq-server#13918
---------

Signed-off-by: Gabriele Santomaggio <[email protected]>

Author: Gsantomaggio

pkg/rabbitmqamqp/amqp_publisher.go

@@ -62,7 +62,7 @@ RabbitMQ supports the following DeliveryState types:
   - StateRejected
     See: https://www.rabbitmq.com/docs/next/amqp#outcomes for more information.
 
-Note: If the destination address is not defined during the creation, the message must have a TO property set.
+If the destination address is not defined during the creation, the message must have a TO property set.
 You can use the helper "MessagePropertyToAddress" to create the destination address.
 See the examples:
 Create a new publisher that sends messages to a specific destination address:
@@ -84,6 +84,16 @@ Create a new publisher that sends messages based on message destination address:
 	..:= MessagePropertyToAddress(msg, &QueueAddress{Queue: "myQueueName"})
 	..:= publisher.Publish(context.Background(), msg)
 
+</code>
+
+The message is persistent by default by setting the Header.Durable to true when Header is nil.
+You can set the message to be non-persistent by setting the Header.Durable to false.
+Note:
+When you use the `Header` is up to you to set the message properties,
+You need set the `Header.Durable` to true or false.
+
+<code>
+
 </code>
 */
 func (m *Publisher) Publish(ctx context.Context, message *amqp.Message) (*PublishResult, error) {
@@ -97,6 +107,14 @@ func (m *Publisher) Publish(ctx context.Context, message *amqp.Message) (*Publis
 			return nil, err
 		}
 	}
+
+	// set the default persistence to the message
+	if message.Header == nil {
+		message.Header = &amqp.MessageHeader{
+			Durable: true,
+		}
+	}
+
 	r, err := m.sender.Load().SendWithReceipt(ctx, message, nil)
 	if err != nil {
 		return nil, err

pkg/rabbitmqamqp/amqp_publisher_test.go

@@ -203,4 +203,65 @@ var _ = Describe("AMQP publisher ", func() {
 
 		Expect(connection.Close(context.Background())).To(BeNil())
 	})
+
+	It("Message should durable by default", func() {
+		// https://github.com/rabbitmq/rabbitmq-server/pull/13918
+
+		// Here we test the default behavior of the message durability
+		// The lib should set the Header.Durable to true by default
+		// when the Header is set by the user
+		// it is up to the user to set the Header.Durable to true or false
+		connection, err := Dial(context.Background(), "amqp://", nil)
+		Expect(err).To(BeNil())
+		Expect(connection).NotTo(BeNil())
+		name := generateNameWithDateTime("Message should durable by default")
+		_, err = connection.Management().DeclareQueue(context.Background(), &QuorumQueueSpecification{
+			Name: name,
+		})
+		Expect(err).To(BeNil())
+
+		publisher, err := connection.NewPublisher(context.Background(), &QueueAddress{Queue: name}, nil)
+		Expect(err).To(BeNil())
+		Expect(publisher).NotTo(BeNil())
+
+		msg := NewMessage([]byte("hello"))
+		Expect(msg.Header).To(BeNil())
+		publishResult, err := publisher.Publish(context.Background(), msg)
+		Expect(err).To(BeNil())
+		Expect(publishResult).NotTo(BeNil())
+		Expect(publishResult.Outcome).To(Equal(&StateAccepted{}))
+		Expect(msg.Header).NotTo(BeNil())
+		Expect(msg.Header.Durable).To(BeTrue())
+
+		consumer, err := connection.NewConsumer(context.Background(), name, nil)
+		Expect(err).To(BeNil())
+		Expect(consumer).NotTo(BeNil())
+		dc, err := consumer.Receive(context.Background())
+		Expect(err).To(BeNil())
+		Expect(dc).NotTo(BeNil())
+		Expect(dc.Message().Header).NotTo(BeNil())
+		Expect(dc.Message().Header.Durable).To(BeTrue())
+		Expect(dc.Accept(context.Background())).To(BeNil())
+
+		msgNotPersistent := NewMessage([]byte("hello"))
+		msgNotPersistent.Header = &amqp.MessageHeader{
+			Durable: false,
+		}
+		publishResult, err = publisher.Publish(context.Background(), msgNotPersistent)
+		Expect(err).To(BeNil())
+		Expect(publishResult).NotTo(BeNil())
+		Expect(publishResult.Outcome).To(Equal(&StateAccepted{}))
+		Expect(msgNotPersistent.Header).NotTo(BeNil())
+		Expect(msgNotPersistent.Header.Durable).To(BeFalse())
+		dc, err = consumer.Receive(context.Background())
+		Expect(err).To(BeNil())
+		Expect(dc).NotTo(BeNil())
+		Expect(dc.Message().Header).NotTo(BeNil())
+		Expect(dc.Message().Header.Durable).To(BeFalse())
+		Expect(dc.Accept(context.Background())).To(BeNil())
+		Expect(publisher.Close(context.Background())).To(BeNil())
+		Expect(connection.Management().DeleteQueue(context.Background(), name)).To(BeNil())
+		Expect(connection.Close(context.Background())).To(BeNil())
+
+	})
 })

pkg/rabbitmqamqp/amqp_queue.go

@@ -29,13 +29,18 @@ func (a *AmqpQueueInfo) Members() []string {
 }
 
 func newAmqpQueueInfo(response map[string]any) *AmqpQueueInfo {
+	leader := ""
+	if response["leader"] != nil {
+		leader = response["leader"].(string)
+	}
+
 	return &AmqpQueueInfo{
 		name:          response["name"].(string),
 		isDurable:     response["durable"].(bool),
 		isAutoDelete:  response["auto_delete"].(bool),
 		isExclusive:   response["exclusive"].(bool),
 		queueType:     TQueueType(response["type"].(string)),
-		leader:        response["leader"].(string),
+		leader:        leader,
 		members:       response["replicas"].([]string),
 		arguments:     response["arguments"].(map[string]any),
 		consumerCount: response["consumer_count"].(uint32),