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Fix for exceeding Pubsub max message lengths
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101 changes: 101 additions & 0 deletions
101
...rc/main/scala/com/snowplowanalytics/snowplow/storage/bigquery/streamloader/Producer.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| /* | ||
| * Copyright (c) 2018-2023 Snowplow Analytics Ltd. All rights reserved. | ||
| * | ||
| * This program is licensed to you under the Apache License Version 2.0, | ||
| * and you may not use this file except in compliance with the Apache License Version 2.0. | ||
| * You may obtain a copy of the Apache License Version 2.0 at http://www.apache.org/licenses/LICENSE-2.0. | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, | ||
| * software distributed under the Apache License Version 2.0 is distributed on an | ||
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the Apache License Version 2.0 for the specific language governing permissions and limitations there under. | ||
| */ | ||
| package com.snowplowanalytics.snowplow.storage.bigquery.streamloader | ||
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| import java.time.Instant | ||
| import java.nio.charset.StandardCharsets | ||
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| import cats.implicits._ | ||
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| import cats.effect.{Async, Resource} | ||
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| import com.permutive.pubsub.producer.{Model, PubsubProducer} | ||
| import com.permutive.pubsub.producer.encoder.MessageEncoder | ||
| import com.permutive.pubsub.producer.grpc.{GooglePubsubProducer, PubsubProducerConfig} | ||
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| import com.snowplowanalytics.snowplow.badrows.{BadRow, Failure, Payload => BadRowPayload} | ||
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| import org.typelevel.log4cats.Logger | ||
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| import scala.concurrent.duration._ | ||
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| trait Producer[F[_], A] { | ||
| def produce(data: A): F[Unit] | ||
| } | ||
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| object Producer { | ||
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| val MaxPayloadLength = 9000000 // Stay under Pubsub Maximum of 10MB | ||
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| def mkProducer[F[_]: Async: Logger, A: MessageEncoder]( | ||
| projectId: String, | ||
| topic: String, | ||
| batchSize: Long, | ||
| delay: FiniteDuration, | ||
| oversizeBadRowProducer: Producer[F, BadRow.SizeViolation] | ||
| ): Resource[F, Producer[F, A]] = | ||
| mkProducer[F, A](projectId, topic, batchSize, delay).map { p => | ||
| (data: A) => { | ||
| val dataSize = getSize(data) | ||
| if (dataSize >= MaxPayloadLength) { | ||
| val badRow = createSizeViolationBadRow(data, dataSize) | ||
| oversizeBadRowProducer.produce(badRow) | ||
| } else { | ||
| p.produce(data).void | ||
| } | ||
| } | ||
| } | ||
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| def mkOversizeBadRowProducer[F[_]: Async: Logger]( | ||
| projectId: String, | ||
| topic: String, | ||
| batchSize: Long, | ||
| delay: FiniteDuration | ||
| ): Resource[F, Producer[F, BadRow.SizeViolation]] = | ||
| mkProducer[F, BadRow](projectId, topic, batchSize, delay).map { p => | ||
| (data: BadRow.SizeViolation) => p.produce(data).void | ||
| } | ||
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| /** Construct a PubSub producer. */ | ||
| private def mkProducer[F[_]: Async: Logger, A: MessageEncoder]( | ||
| projectId: String, | ||
| topic: String, | ||
| batchSize: Long, | ||
| delay: FiniteDuration | ||
| ): Resource[F, PubsubProducer[F, A]] = | ||
| GooglePubsubProducer.of[F, A]( | ||
| Model.ProjectId(projectId), | ||
| Model.Topic(topic), | ||
| config = PubsubProducerConfig[F]( | ||
| batchSize = batchSize, | ||
| delayThreshold = delay, | ||
| onFailedTerminate = e => Logger[F].error(e)(s"Error in PubSub producer") | ||
| ) | ||
| ) | ||
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| private def createSizeViolationBadRow[A: MessageEncoder](data: A, actualDataSize: Int): BadRow.SizeViolation = { | ||
| val msg = s"Pubsub message exceedsMessageEncoder allowed size" | ||
| val payload = MessageEncoder[A].encode(data) | ||
| .map(bytes => new String(bytes, StandardCharsets.UTF_8)) | ||
| .getOrElse("Pubsub message can't be converted to string") | ||
| BadRow | ||
| .SizeViolation( | ||
| processor, | ||
| Failure.SizeViolation(Instant.now(), MaxPayloadLength, actualDataSize, msg), | ||
| BadRowPayload.RawPayload(payload.take(MaxPayloadLength / 10)) | ||
| ) | ||
| } | ||
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| private def getSize[A: MessageEncoder](a: A): Int = | ||
| MessageEncoder[A].encode(a).map(_.length).getOrElse(Int.MaxValue) | ||
| } |
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