add FIFO logic to SNS

Author: Kate Simozhenko

Diff for: pkg/sns/SnsDestination.php

@@ -70,6 +70,36 @@ public function getDeliveryPolicy(): ?int
         return $this->getAttribute('DeliveryPolicy');
     }
 
+    /**
+     * Only FIFO.
+     *
+     * Designates a topic as FIFO. You can provide this attribute only during queue creation.
+     * You can't change it for an existing topic. When you set this attribute, you must provide aMessageGroupId
+     * explicitly.
+     * For more information, see https://docs.aws.amazon.com/sns/latest/dg/sns-fifo-topics.html
+     *
+     * @param bool $enable
+     */
+    public function setFifoTopic(bool $enable): void
+    {
+        $value = $enable ? 'true' : null;
+
+        $this->setAttribute('FifoTopic', $value);
+    }
+
+    /**
+     * Only FIFO.
+     *
+     *  Enables content-based deduplication.
+     *  For more information, see: https://docs.aws.amazon.com/sns/latest/dg/fifo-message-dedup.html
+     */
+    public function setContentBasedDeduplication(bool $enable): void
+    {
+        $value = $enable ? 'true' : null;
+
+        $this->setAttribute('ContentBasedDeduplication', $value);
+    }
+
     public function getAttributes(): array
     {
         return $this->attributes;

Diff for: pkg/sns/SnsMessage.php

@@ -42,6 +42,16 @@ class SnsMessage implements Message
      */
     private $targetArn;
 
+    /**
+     * @var string|null
+     */
+    private $messageGroupId;
+
+    /**
+     * @var string|null
+     */
+    private $messageDeduplicationId;
+
     /**
      * SnsMessage constructor.
      *
@@ -220,4 +230,48 @@ public function setTargetArn(?string $targetArn): void
     {
         $this->targetArn = $targetArn;
     }
+
+    /**
+     * Only FIFO.
+     *
+     * The tag that specifies that a message belongs to a specific message group. Messages that belong to the same
+     * message group are processed in a FIFO manner (however, messages in different message groups might be processed
+     * out of order).
+     * To interleave multiple ordered streams within a single queue, use MessageGroupId values (for example, session
+     * data for multiple users). In this scenario, multiple readers can process the queue, but the session data
+     * of each user is processed in a FIFO fashion.
+     * For more information, see: https://docs.aws.amazon.com/sns/latest/dg/fifo-message-grouping.html
+     *
+     * @param string|null $id
+     */
+    public function setMessageGroupId(string $id = null): void
+    {
+        $this->messageGroupId = $id;
+    }
+
+    /**
+     * @return string|null
+     */
+    public function getMessageGroupId(): ?string
+    {
+        return $this->messageGroupId;
+    }
+
+    /**
+     * Only FIFO.
+     *
+     * The token used for deduplication of sent messages. If a message with a particular MessageDeduplicationId is
+     * sent successfully, any messages sent with the same MessageDeduplicationId are accepted successfully but
+     * aren't delivered during the 5-minute deduplication interval.
+     * For more information, see https://docs.aws.amazon.com/sns/latest/dg/fifo-message-dedup.html
+     */
+    public function setMessageDeduplicationId(string $id = null): void
+    {
+        $this->messageDeduplicationId = $id;
+    }
+
+    public function getMessageDeduplicationId(): ?string
+    {
+        return $this->messageDeduplicationId;
+    }
 }

Diff for: pkg/sns/SnsProducer.php

@@ -77,6 +77,14 @@ public function send(Destination $destination, Message $message): void
             $arguments['TargetArn'] = $targetArn;
         }
 
+        if ($messageGroupId = $message->getMessageGroupId()) {
+            $arguments['MessageGroupId'] = $messageGroupId;
+        }
+
+        if ($messageDeduplicationId = $message->getMessageDeduplicationId()) {
+            $arguments['MessageDeduplicationId'] = $messageDeduplicationId;
+        }
+
         $result = $this->context->getSnsClient()->publish($arguments);
 
         if (false == $result->hasKey('MessageId')) {