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sqs.go
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sqs.go
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package aws
import (
"fmt"
"strconv"
"strings"
"testing"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/sqs"
"github.com/google/uuid"
"github.com/gruntwork-io/terratest/modules/logger"
)
// CreateRandomQueue creates a new SQS queue with a random name that starts with the given prefix and return the queue URL.
func CreateRandomQueue(t *testing.T, awsRegion string, prefix string) string {
url, err := CreateRandomQueueE(t, awsRegion, prefix)
if err != nil {
t.Fatal(err)
}
return url
}
// CreateRandomQueueE creates a new SQS queue with a random name that starts with the given prefix and return the queue URL.
func CreateRandomQueueE(t *testing.T, awsRegion string, prefix string) (string, error) {
logger.Logf(t, "Creating randomly named SQS queue with prefix %s", prefix)
sqsClient, err := NewSqsClientE(t, awsRegion)
if err != nil {
return "", err
}
channel, err := uuid.NewUUID()
if err != nil {
return "", err
}
channelName := fmt.Sprintf("%s-%s", prefix, channel.String())
queue, err := sqsClient.CreateQueue(&sqs.CreateQueueInput{
QueueName: aws.String(channelName),
})
if err != nil {
return "", err
}
return aws.StringValue(queue.QueueUrl), nil
}
// DeleteQueue deletes the SQS queue with the given URL.
func DeleteQueue(t *testing.T, awsRegion string, queueURL string) {
err := DeleteQueueE(t, awsRegion, queueURL)
if err != nil {
t.Fatal(err)
}
}
// DeleteQueueE deletes the SQS queue with the given URL.
func DeleteQueueE(t *testing.T, awsRegion string, queueURL string) error {
logger.Logf(t, "Deleting SQS Queue %s", queueURL)
sqsClient, err := NewSqsClientE(t, awsRegion)
if err != nil {
return err
}
_, err = sqsClient.DeleteQueue(&sqs.DeleteQueueInput{
QueueUrl: aws.String(queueURL),
})
return err
}
// DeleteMessageFromQueue deletes the message with the given receipt from the SQS queue with the given URL.
func DeleteMessageFromQueue(t *testing.T, awsRegion string, queueURL string, receipt string) {
err := DeleteMessageFromQueueE(t, awsRegion, queueURL, receipt)
if err != nil {
t.Fatal(err)
}
}
// DeleteMessageFromQueueE deletes the message with the given receipt from the SQS queue with the given URL.
func DeleteMessageFromQueueE(t *testing.T, awsRegion string, queueURL string, receipt string) error {
logger.Logf(t, "Deleting message from queue %s (%s)", queueURL, receipt)
sqsClient, err := NewSqsClientE(t, awsRegion)
if err != nil {
return err
}
_, err = sqsClient.DeleteMessage(&sqs.DeleteMessageInput{
ReceiptHandle: &receipt,
QueueUrl: &queueURL,
})
return err
}
// SendMessageToQueue sends the given message to the SQS queue with the given URL.
func SendMessageToQueue(t *testing.T, awsRegion string, queueURL string, message string) {
err := SendMessageToQueueE(t, awsRegion, queueURL, message)
if err != nil {
t.Fatal(err)
}
}
// SendMessageToQueueE sends the given message to the SQS queue with the given URL.
func SendMessageToQueueE(t *testing.T, awsRegion string, queueURL string, message string) error {
logger.Logf(t, "Sending message %s to queue %s", message, queueURL)
sqsClient, err := NewSqsClientE(t, awsRegion)
if err != nil {
return err
}
res, err := sqsClient.SendMessage(&sqs.SendMessageInput{
MessageBody: &message,
QueueUrl: &queueURL,
})
if err != nil {
if strings.Contains(err.Error(), "AWS.SimpleQueueService.NonExistentQueue") {
logger.Logf(t, fmt.Sprintf("WARN: Client has stopped listening on queue %s", queueURL))
return nil
}
return err
}
logger.Logf(t, "Message id %s sent to queue %s", aws.StringValue(res.MessageId), queueURL)
return nil
}
// QueueMessageResponse contains a queue message.
type QueueMessageResponse struct {
ReceiptHandle string
MessageBody string
Error error
}
// WaitForQueueMessage waits to receive a message from on the queueURL. Since the API only allows us to wait a max 20 seconds for a new
// message to arrive, we must loop TIMEOUT/20 number of times to be able to wait for a total of TIMEOUT seconds
func WaitForQueueMessage(t *testing.T, awsRegion string, queueURL string, timeout int) QueueMessageResponse {
sqsClient, err := NewSqsClientE(t, awsRegion)
if err != nil {
return QueueMessageResponse{Error: err}
}
cycles := timeout
cycleLength := 1
if timeout >= 20 {
cycleLength = 20
cycles = timeout / cycleLength
}
for i := 0; i < cycles; i++ {
logger.Logf(t, "Waiting for message on %s (%ss)", queueURL, strconv.Itoa(i*cycleLength))
result, err := sqsClient.ReceiveMessage(&sqs.ReceiveMessageInput{
QueueUrl: aws.String(queueURL),
AttributeNames: aws.StringSlice([]string{"SentTimestamp"}),
MaxNumberOfMessages: aws.Int64(1),
MessageAttributeNames: aws.StringSlice([]string{"All"}),
WaitTimeSeconds: aws.Int64(int64(cycleLength)),
})
if err != nil {
return QueueMessageResponse{Error: err}
}
if len(result.Messages) > 0 {
logger.Logf(t, "Message %s received on %s", *result.Messages[0].MessageId, queueURL)
return QueueMessageResponse{ReceiptHandle: *result.Messages[0].ReceiptHandle, MessageBody: *result.Messages[0].Body}
}
}
return QueueMessageResponse{Error: ReceiveMessageTimeout{QueueUrl: queueURL, TimeoutSec: timeout}}
}
// NewSqsClient creates a new SQS client.
func NewSqsClient(t *testing.T, region string) *sqs.SQS {
client, err := NewSqsClientE(t, region)
if err != nil {
t.Fatal(err)
}
return client
}
// NewSqsClientE creates a new SQS client.
func NewSqsClientE(t *testing.T, region string) (*sqs.SQS, error) {
sess, err := NewAuthenticatedSession(region)
if err != nil {
return nil, err
}
return sqs.New(sess), nil
}
// ReceiveMessageTimeout is an error that occurs if receiving a message times out.
type ReceiveMessageTimeout struct {
QueueUrl string
TimeoutSec int
}
func (err ReceiveMessageTimeout) Error() string {
return fmt.Sprintf("Failed to receive messages on %s within %s seconds", err.QueueUrl, strconv.Itoa(err.TimeoutSec))
}