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46 changes: 46 additions & 0 deletions
46
...loader/src/main/scala/com/snowplowanalytics/snowplow/rdbloader/dsl/metrics/Reporter.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| /* | ||
| * Copyright (c) 2021-2021 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.rdbloader.dsl.metrics | ||
|
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| import cats.Applicative | ||
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| import cats.effect.{Blocker, ContextShift, Sync, Timer} | ||
|
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| import com.snowplowanalytics.snowplow.rdbloader.common.config.Config | ||
| import com.snowplowanalytics.snowplow.rdbloader.dsl.Logging | ||
|
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| trait Reporter[F[_]] { | ||
| def report(metrics: List[Metrics.KVMetric]): F[Unit] | ||
| } | ||
|
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| object Reporter { | ||
| def apply[F[_]](implicit ev: Reporter[F]): Reporter[F] = ev | ||
|
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| def build[F[_]: ContextShift: Sync: Timer]( | ||
| metricsConfig: Option[Config.Metrics], | ||
| logging: Logging[F], | ||
| blocker: Blocker | ||
| ): Reporter[F] = | ||
| metricsConfig match { | ||
| case Some(statsDConfig: Config.Metrics.StatsD) => | ||
| StatsDReporter.build[F](statsDConfig, blocker) | ||
| case Some(stdoutConfig: Config.Metrics.Stdout) => | ||
| StdoutReporter.build[F](stdoutConfig, logging) | ||
| case None => | ||
| noop[F] | ||
| } | ||
|
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| def noop[F[_]: Applicative]: Reporter[F] = new Reporter[F] { | ||
| def report(metrics: List[Metrics.KVMetric]) = Applicative[F].unit | ||
| } | ||
| } |
60 changes: 60 additions & 0 deletions
60
.../src/main/scala/com/snowplowanalytics/snowplow/rdbloader/dsl/metrics/StatsDReporter.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| /* | ||
| * Copyright (c) 2021-2021 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.rdbloader.dsl.metrics | ||
|
|
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| import java.net.{DatagramPacket, DatagramSocket, InetAddress} | ||
| import java.nio.charset.StandardCharsets.UTF_8 | ||
|
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| import cats.implicits._ | ||
|
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| import cats.effect.{Blocker, ContextShift, Resource, Sync, Timer} | ||
|
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| import com.snowplowanalytics.snowplow.rdbloader.common.config.Config | ||
|
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| object StatsDReporter { | ||
|
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| def build[F[_]: ContextShift: Sync: Timer](statsDConfig: Config.Metrics.StatsD, blocker: Blocker): Reporter[F] = | ||
| new Reporter[F] { | ||
| def report(metrics: List[Metrics.KVMetric]): F[Unit] = { | ||
| mkSocket[F](blocker).use { socket => | ||
| for { | ||
| formatted <- Sync[F].pure(metrics.map(statsDFormat(statsDConfig))) | ||
| ip <- blocker.delay(InetAddress.getByName(statsDConfig.hostname)) | ||
| _ <- formatted.traverse_(sendMetric[F](blocker, socket, ip, statsDConfig.port)) | ||
| } yield () | ||
| } | ||
| } | ||
| } | ||
|
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| private def mkSocket[F[_]: ContextShift: Sync](blocker: Blocker): Resource[F, DatagramSocket] = | ||
| Resource.fromAutoCloseableBlocking(blocker)(Sync[F].delay(new DatagramSocket)) | ||
|
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| private def sendMetric[F[_]: ContextShift: Sync]( | ||
| blocker: Blocker, | ||
| socket: DatagramSocket, | ||
| addr: InetAddress, | ||
| port: Int | ||
| )( | ||
| metric: String | ||
| ): F[Unit] = { | ||
| val bytes = metric.getBytes(UTF_8) | ||
| val packet = new DatagramPacket(bytes, bytes.length, addr, port) | ||
| blocker.delay(socket.send(packet)) | ||
| } | ||
|
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| private def statsDFormat(config: Config.Metrics.StatsD)(metric: Metrics.KVMetric): String = { | ||
| val tagStr = config.tags.map { case (k, v) => s"$k:$v" }.mkString(",") | ||
| val prefix = config.metricsPrefix | ||
| s"${prefix}${metric.key}:${metric.value}|g|#$tagStr" | ||
| } | ||
| } |
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