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Apache Pekko Connectors is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Pekko.
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* license agreements; and to You under the Apache License, version 2.0:
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* This file is part of the Apache Pekko project, which was derived from Akka.
*/
/*
* Copyright (C) since 2016 Lightbend Inc.
*/
package org.apache.pekko.stream.connectors.sqs.scaladsl
import org.apache.pekko
import pekko.Done
import pekko.stream.connectors.sqs.{ SqsPublishBatchSettings, SqsPublishGroupedSettings, SqsPublishSettings }
import pekko.stream.scaladsl.{ Flow, Keep, Sink }
import software.amazon.awssdk.services.sqs.SqsAsyncClient
import software.amazon.awssdk.services.sqs.model.SendMessageRequest
import scala.concurrent.Future
/**
* Scala API to create publishing SQS sinks.
*/
object SqsPublishSink {
/**
* creates a [[pekko.stream.scaladsl.Sink Sink]] that accepts strings and publishes them as messages to a SQS queue using an [[software.amazon.awssdk.services.sqs.SqsAsyncClient SqsAsyncClient]]
*/
def apply(
queueUrl: String,
settings: SqsPublishSettings = SqsPublishSettings.Defaults)(
implicit sqsClient: SqsAsyncClient): Sink[String, Future[Done]] =
Flow
.fromFunction((msg: String) => SendMessageRequest.builder().queueUrl(queueUrl).messageBody(msg).build())
.toMat(messageSink(queueUrl, settings))(Keep.right)
/**
* creates a [[pekko.stream.scaladsl.Sink Sink]] that groups strings and publishes them as messages in batches to a SQS queue using an [[software.amazon.awssdk.services.sqs.SqsAsyncClient SqsAsyncClient]]
*
* @see https://pekko.apache.org/docs/pekko/current/stream/operators/Source-or-Flow/groupedWithin.html#groupedwithin
*/
def grouped(queueUrl: String, settings: SqsPublishGroupedSettings = SqsPublishGroupedSettings.Defaults)(
implicit sqsClient: SqsAsyncClient): Sink[String, Future[Done]] =
Flow
.fromFunction((msg: String) => SendMessageRequest.builder().queueUrl(queueUrl).messageBody(msg).build())
.toMat(groupedMessageSink(queueUrl, settings))(Keep.right)
/**
* creates a [[pekko.stream.scaladsl.Sink Sink]] that accepts an iterable of strings and publish them as messages in batches to a SQS queue using an [[software.amazon.awssdk.services.sqs.SqsAsyncClient SqsAsyncClient]]
*
* @see https://pekko.apache.org/docs/pekko/current/stream/operators/Source-or-Flow/groupedWithin.html#groupedwithin
*/
def batch(
queueUrl: String,
settings: SqsPublishBatchSettings = SqsPublishBatchSettings.Defaults)(
implicit sqsClient: SqsAsyncClient): Sink[Iterable[String], Future[Done]] =
Flow
.fromFunction((msgs: Iterable[String]) =>
msgs.map(msg => SendMessageRequest.builder().queueUrl(queueUrl).messageBody(msg).build()))
.toMat(batchedMessageSink(queueUrl, settings))(Keep.right)
/**
* creates a [[pekko.stream.scaladsl.Sink Sink]] to publish messages to a SQS queue using an [[software.amazon.awssdk.services.sqs.SqsAsyncClient SqsAsyncClient]]
*/
def messageSink(
queueUrl: String,
settings: SqsPublishSettings)(implicit sqsClient: SqsAsyncClient): Sink[SendMessageRequest, Future[Done]] =
SqsPublishFlow.apply(queueUrl, settings).toMat(Sink.ignore)(Keep.right)
/**
* creates a [[pekko.stream.scaladsl.Sink Sink]] to publish messages to a SQS queue using an [[software.amazon.awssdk.services.sqs.SqsAsyncClient SqsAsyncClient]]
*/
def messageSink(queueUrl: String)(implicit sqsClient: SqsAsyncClient): Sink[SendMessageRequest, Future[Done]] =
SqsPublishFlow.apply(queueUrl, SqsPublishSettings.Defaults).toMat(Sink.ignore)(Keep.right)
/**
* creates a [[pekko.stream.scaladsl.Sink Sink]] to publish messages to SQS queues based on the message queue url using an [[software.amazon.awssdk.services.sqs.SqsAsyncClient SqsAsyncClient]]
*/
def messageSink(
settings: SqsPublishSettings = SqsPublishSettings.Defaults)(
implicit sqsClient: SqsAsyncClient): Sink[SendMessageRequest, Future[Done]] =
SqsPublishFlow.apply(settings).toMat(Sink.ignore)(Keep.right)
/**
* creates a [[pekko.stream.scaladsl.Sink Sink]] that groups messages and publishes them in batches to a SQS queue using an [[software.amazon.awssdk.services.sqs.SqsAsyncClient SqsAsyncClient]]
*
* @see https://pekko.apache.org/docs/pekko/current/stream/operators/Source-or-Flow/groupedWithin.html#groupedwithin
*/
def groupedMessageSink(
queueUrl: String,
settings: SqsPublishGroupedSettings = SqsPublishGroupedSettings.Defaults)(
implicit sqsClient: SqsAsyncClient): Sink[SendMessageRequest, Future[Done]] =
SqsPublishFlow.grouped(queueUrl, settings).toMat(Sink.ignore)(Keep.right)
/**
* creates a [[pekko.stream.scaladsl.Sink Sink]] to publish messages in batches to a SQS queue using an [[software.amazon.awssdk.services.sqs.SqsAsyncClient SqsAsyncClient]]
*/
def batchedMessageSink(
queueUrl: String,
settings: SqsPublishBatchSettings = SqsPublishBatchSettings.Defaults)(
implicit sqsClient: SqsAsyncClient): Sink[Iterable[SendMessageRequest], Future[Done]] =
SqsPublishFlow.batch(queueUrl, settings).toMat(Sink.ignore)(Keep.right)
}