Add basic support for AWS SQS - send and read

documentation/mkdocs.yml

@@ -66,7 +66,6 @@ nav:
         - 'Client Customization' : rabbitmq/rabbitmq-client-customization.md
         - 'Connecting to managed instances' : rabbitmq/rabbitmq-cloud.md
 
-
   - Pulsar:
         - pulsar/pulsar.md
         - 'Receiving messages': pulsar/receiving-pulsar-messages.md
@@ -96,6 +95,10 @@ nav:
         - 'Sending MQTT messages': mqtt/sending-messages-to-mqtt.md
         - 'Customizing the MQTT client': mqtt/client-customization.md
 
+  - AWS SQS:
+        - sqs/sqs.md
+        - 'Receiving AWS SQS messages': sqs/receiving-aws-sqs-messages.md
+        - 'Sending AWS SQS messages': sqs/sending-aws-sqs-messages.md
 
 plugins:
   - search

documentation/pom.xml

@@ -79,6 +79,11 @@
       <artifactId>smallrye-reactive-messaging-pulsar</artifactId>
       <version>${project.version}</version>
     </dependency>
+    <dependency>
+      <groupId>io.smallrye.reactive</groupId>
+      <artifactId>smallrye-reactive-messaging-aws-sqs</artifactId>
+      <version>${project.version}</version>
+    </dependency>
     <dependency>
       <groupId>jakarta.jms</groupId>
       <artifactId>jakarta.jms-api</artifactId>

documentation/src/main/docs/sqs/receiving-aws-sqs-messages.md

@@ -0,0 +1,99 @@
+# Receiving AWS SQS Messages
+
+The AWS SQS connector allows you to receive messages from an AWS SQS queue.
+
+## Receiving messages
+
+Before you start, you need to have an AWS account and a SQS queue created.
+To receive messages from an SQS queue, you need to create a method that consumes messages from the queue.
+``` properties
+mp.messaging.incoming.data.connector=smallrye-sqs
+mp.messaging.incoming.data.queue=my-queue
+```
+
+Then, your application receives `Message<String>`.
+You can consume the payload directly:
+
+``` java
+{{ insert('sqs/inbound/SqsStringConsumer.java') }}
+```
+
+Or, you can retrieve the `Message<String>`:
+
+``` java
+{{ insert('sqs/inbound/SqsMessageStringConsumer.java') }}
+```
+
+You also can directly consume the `software.amazon.awssdk.services.sqs.model.Message`:
+
+``` java
+{{ insert('sqs/inbound/SqsSdkMessageConsumer.java') }}
+```
+
+### Receive message request customizer
+
+The receive message requests sent to AWS SQS can be customized by providing a CDI bean implementation of
+{{ javadoc('io.smallrye.reactive.messaging.aws.sqs.SqsReceiveMessageRequestCustomizer', False, 'io.smallrye.reactive/smallrye-reactive-messaging-aws-sqs') }}
+and configuring it's identifier using the `receive.request.customizer` connector attribute.
+
+``` java
+{{ insert('sqs/inbound/SqsReceiveMessageRequestCustomizerExample.java') }}
+```
+
+```properties
+mp.messaging.incoming.data.connector=smallrye-sqs
+mp.messaging.incoming.data.queue=my-queue
+mp.messaging.incoming.data.receive.request.customizer=my-customizer
+```
+
+Receive requests failed with retryable exceptions are retried automatically, by setting the failed request id.
+
+### Receive message request pause and resume
+
+The AWS SQS connector fetches messages by continuously sending receive message requests.
+If messages are not processed in a timely manner, the connector pauses fetching messages until queued messages are processed.
+
+The pause resume can be disabled using the `receive.request.pause.resume` connector attribute.
+
+```properties
+mp.messaging.incoming.data.receive.request.pause.resume=false
+```
+
+## Deserialization
+
+The connector converts incoming SQS Messages into Reactive Messaging `Message<T>` instances.
+
+The payload type `T` is determined based on the value of the SQS message attribute `_classname`.
+
+If you send messages with the AWS SQS connector (outbound connector),
+the `_classname` attribute is automatically added to the message.
+The primitive types are transformed from the string representation to the corresponding Java type.
+For objects, if one of the `JsonMapping` modules is present on the classpath,
+the connector used that JSON module to deserialize the message body to objects.
+
+If the `_classname` attribute is not present, the payload is deserialized as a `String`.
+
+``` java
+{{ insert('sqs/json/SqsJsonMapping.java', 'code') }}
+```
+
+## Inbound Metadata
+
+Messages coming from SQS contain an instance of {{ javadoc('io.smallrye.reactive.messaging.aws.sqs.SqsIncomingMetadata', False, 'io.smallrye.reactive/smallrye-reactive-messaging-aws-sqs') }}
+in the metadata.
+
+SQS message attributes can be accessed from the metadata either by name or by the `MessageAttributeValue` object.
+
+``` java
+{{ insert('sqs/inbound/SqsMetadataExample.java') }}
+```
+
+## Acknowledgement
+
+The default strategy for acknowledging AWS SQS Message is to *delete* the message from the queue.
+With `ack.delete` set to `false`, the message is not deleted from the queue.
+
+## Configuration Reference
+
+{{ insert('../../../target/connectors/smallrye-sqs-incoming.md') }}
+

documentation/src/main/docs/sqs/sending-aws-sqs-messages.md

@@ -0,0 +1,55 @@
+# Sending AWS SQS Messages
+
+The AWS SQS connector allows you to send messages to an AWS SQS queue.
+
+## Sending messages
+
+Before you start, you need to have an AWS account and an SQS queue created.
+To send messages to an SQS queue, you need to create a method that produces messages to the queue.
+
+Then, your application can send `Message<String>` to the prices channel.
+It can use `String` payloads as in the following snippet:
+
+``` java
+{{ insert('sqs/outbound/SqsStringProducer.java') }}
+```
+
+Or, you can send `Message<Double>`, which affords the opportunity to
+explicitly specify metadata on the outgoing message:
+
+``` java
+{{ insert('sqs/outbound/SqsMessageStringProducer.java') }}
+```
+
+## Serialization
+
+When sending a `Message<T>`, the connector converts the message into a AWS SQS Message.
+How the message is converted depends on the payload type:
+
+- If the payload is of type `SendMessageRequest` it is sent as is.
+- If the payload is of type `SendMessageRequest.Builder`, the queue url is set and sent.
+- If the payload is of type `software.amazon.awssdk.services.sqs.model.Message` it is usd to set the message body and attributes.
+- If the payload is of primitive types the paylaod is converted to String and the message attribute `_classname` is set to the class name of the payload.
+- If the payload is of any other object type, the payload is serialized (using the `JsonMapping` implementation discovered) and the message attribute `_classname` is set to the class name of the payload.
+
+If the message payload cannot be serialized to JSON, the message is *nacked*.
+
+## Outbound Metadata
+
+When sending `Messages`, you can add an instance of {{ javadoc('io.smallrye.reactive.messaging.aws.sqs.SqsOutboundMetadata', False, 'io.smallrye.reactive/smallrye-reactive-messaging-aws-sqs') }}
+to influence how the message is handled by AWS SQS. For example, you
+can configure the routing key, timestamp and headers:
+
+``` java
+{{ insert('sqs/outbound/SqsOutboundMetadataExample.java', 'code') }}
+```
+
+## Acknowledgement
+
+By default, the Reactive Messaging `Message` is acknowledged when the
+send message request is successful. If the message is not sent successfully, the message is *nacked*.
+
+## Configuration Reference
+
+{{ insert('../../../target/connectors/smallrye-sqs-outgoing.md') }}
+

documentation/src/main/docs/sqs/sqs.md

@@ -0,0 +1,52 @@
+# AWS SQS Connector
+
+!!! warning "Preview"
+    The AWS SQS Connector is currently in **preview**.
+
+The AWS SQS Connector adds support for AWS SQS to Reactive Messaging.
+
+With this connector, your application can:
+
+-   receive messages from a RabbitMQ queue
+-   send messages to a RabbitMQ exchange
+
+The AWS SQS connector is based on the [AWS SDK for Java V2](https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/home.html).
+
+## Using the AWS SQS connector
+
+To use the AWS SQS Connector, add the following dependency to your project:
+
+``` xml
+<dependency>
+  <groupId>io.smallrye.reactive</groupId>
+  <artifactId>smallrye-reactive-messaging-aws-sqs</artifactId>
+  <version>{{ attributes['project-version'] }}</version>
+</dependency>
+```
+
+The connector name is: `smallrye-sqs`.
+
+So, to indicate that a channel is managed by this connector you need:
+```properties
+# Inbound
+mp.messaging.incoming.[channel-name].connector=smallrye-sqs
+
+# Outbound
+mp.messaging.outgoing.[channel-name].connector=smallrye-sqs
+```
+
+## Configuration
+
+When available the AWS SQS connector discovers the SQS client as a CDI bean.
+This allows using the connector with the [Quarkiverse AWS SQS extension](https://docs.quarkiverse.io/quarkus-amazon-services/dev/amazon-sqs.html).
+If the SQS client is not available as a CDI bean, the connector creates a new client using the provided configuration.
+
+- `queue` - The name of the SQS queue, defaults to channel name if not provided.
+- `region` - The name of the SQS region.
+- `endpoint-override` - The endpoint url override.
+- `credentials-provider` - The fully qualified class name of the credential provider to be used in the client, if not provided the default provider chain is used.
+
+## Additional Resources
+
+- [AWS SQS Documentation](https://docs.aws.amazon.com/sqs/index.html)
+- [Quarkiverse AWS SQS Extension](https://docs.quarkiverse.io/quarkus-amazon-services/dev/amazon-sqs.html)

documentation/src/main/java/sqs/inbound/SqsMessageStringConsumer.java

@@ -0,0 +1,17 @@
+package sqs.inbound;
+
+import java.util.concurrent.CompletionStage;
+
+import jakarta.enterprise.context.ApplicationScoped;
+
+import org.eclipse.microprofile.reactive.messaging.Incoming;
+import org.eclipse.microprofile.reactive.messaging.Message;
+
+@ApplicationScoped
+public class SqsMessageStringConsumer {
+    @Incoming("data")
+    CompletionStage<Void> consume(Message<String> msg) {
+        System.out.println("Received: " + msg.getPayload());
+        return msg.ack();
+    }
+}

documentation/src/main/java/sqs/inbound/SqsMetadataExample.java

@@ -0,0 +1,21 @@
+package sqs.inbound;
+
+import java.util.Map;
+
+import jakarta.enterprise.context.ApplicationScoped;
+
+import org.eclipse.microprofile.reactive.messaging.Incoming;
+
+import io.smallrye.reactive.messaging.aws.sqs.SqsIncomingMetadata;
+import software.amazon.awssdk.services.sqs.model.MessageAttributeValue;
+
+@ApplicationScoped
+public class SqsMetadataExample {
+
+    @Incoming("queue")
+    public void metadata(String body, SqsIncomingMetadata metadata) {
+        Map<String, MessageAttributeValue> attributes = metadata.getMessage().messageAttributes();
+        attributes.forEach((k, v) -> System.out.println(k + " -> " + v.stringValue()));
+        System.out.println("Message body: " + body);
+    }
+}

documentation/src/main/java/sqs/inbound/SqsReceiveMessageRequestCustomizerExample.java

@@ -0,0 +1,17 @@
+package sqs.inbound;
+
+import jakarta.enterprise.context.ApplicationScoped;
+
+import io.smallrye.common.annotation.Identifier;
+import io.smallrye.reactive.messaging.aws.sqs.SqsReceiveMessageRequestCustomizer;
+import software.amazon.awssdk.services.sqs.model.ReceiveMessageRequest;
+
+@Identifier("my-customizer") // or with channel name @Identifier("data")
+@ApplicationScoped
+public class SqsReceiveMessageRequestCustomizerExample implements SqsReceiveMessageRequestCustomizer {
+    @Override
+    public void customize(ReceiveMessageRequest.Builder builder) {
+        builder.visibilityTimeout(10)
+                .messageAttributeNames("my-attribute");
+    }
+}

documentation/src/main/java/sqs/inbound/SqsSdkMessageConsumer.java

@@ -0,0 +1,21 @@
+package sqs.inbound;
+
+import java.util.Map;
+
+import jakarta.enterprise.context.ApplicationScoped;
+
+import org.eclipse.microprofile.reactive.messaging.Incoming;
+
+import software.amazon.awssdk.services.sqs.model.Message;
+import software.amazon.awssdk.services.sqs.model.MessageAttributeValue;
+
+@ApplicationScoped
+public class SqsSdkMessageConsumer {
+
+    @Incoming("data")
+    void consume(Message msg) {
+        System.out.println("Received: " + msg.body());
+        Map<String, MessageAttributeValue> attributes = msg.messageAttributes();
+        // ...
+    }
+}

documentation/src/main/java/sqs/inbound/SqsStringConsumer.java

@@ -0,0 +1,13 @@
+package sqs.inbound;
+
+import jakarta.enterprise.context.ApplicationScoped;
+
+import org.eclipse.microprofile.reactive.messaging.Incoming;
+
+@ApplicationScoped
+public class SqsStringConsumer {
+    @Incoming("data")
+    void consume(String messageBody) {
+        System.out.println("Received: " + messageBody);
+    }
+}

documentation/src/main/java/sqs/json/SqsJsonMapping.java

@@ -0,0 +1,56 @@
+package sqs.json;
+
+import java.time.Duration;
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import jakarta.enterprise.context.ApplicationScoped;
+
+import org.eclipse.microprofile.reactive.messaging.Incoming;
+import org.eclipse.microprofile.reactive.messaging.Outgoing;
+
+import io.smallrye.mutiny.Multi;
+
+public class SqsJsonMapping {
+
+    // <code>
+    @ApplicationScoped
+    public static class Generator {
+
+        @Outgoing("to-rabbitmq")
+        public Multi<Price> prices() {
+            AtomicInteger count = new AtomicInteger();
+            return Multi.createFrom().ticks().every(Duration.ofMillis(1000))
+                    .map(l -> new Price().setPrice(count.incrementAndGet()))
+                    .onOverflow().drop();
+        }
+
+    }
+
+    @ApplicationScoped
+    public static class Consumer {
+
+        List<Price> prices = new CopyOnWriteArrayList<>();
+
+        @Incoming("from-rabbitmq")
+        public void consume(Price price) {
+            prices.add(price);
+        }
+
+        public List<Price> list() {
+            return prices;
+        }
+    }
+
+    public static class Price {
+        public int price;
+
+        public Price setPrice(int price) {
+            this.price = price;
+            return this;
+        }
+    }
+    // </code>
+
+}