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[sttp-finagle] Adds concurrent cache to prevent Finagle client leak #1393

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[sttp-finagle] Adds concurrent cache to prevent Finagle client leak #1393

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9998ff2
[sttp-finagle] Adds concurrent cache to prevent Finagle client leak
ssalevan Apr 8, 2022
3605673
Removing .jvmopts
ssalevan Apr 12, 2022
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3 changes: 3 additions & 0 deletions .gitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -29,3 +29,6 @@ project/metals.sbt

# scala-native
lowered.hnir

# VSCode
.vscode/
14 changes: 10 additions & 4 deletions finagle-backend/src/main/scala/sttp/client3/finagle/FinagleBackend.scala
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Expand Up @@ -14,6 +14,7 @@ import com.twitter.io.Buf
import com.twitter.io.Buf.{ByteArray, ByteBuffer}
import com.twitter.util
import com.twitter.util.{Duration, Future => TFuture}
import java.util.concurrent.ConcurrentHashMap
import sttp.capabilities.Effect
import sttp.client3.internal.{BodyFromResponseAs, FileHelpers, SttpFile, Utf8}
import sttp.client3.testing.SttpBackendStub
Expand All @@ -38,11 +39,12 @@ import sttp.client3.{
import sttp.model._
import sttp.monad.MonadError
import sttp.monad.syntax._

import scala.io.Source
import scala.jdk.CollectionConverters._

class FinagleBackend(client: Option[Client] = None) extends SttpBackend[TFuture, Any] {
type PE = Any with Effect[TFuture]
private[this] val clientCache = new ConcurrentHashMap[String, Service[http.Request, FResponse]].asScala
override def send[T, R >: PE](request: Request[T, R]): TFuture[Response[T]] =
adjustExceptions(request) {
val service = getClient(client, request)
Expand Down Expand Up @@ -204,9 +206,13 @@ class FinagleBackend(client: Option[Client] = None) extends SttpBackend[TFuture,
case _ => Http.client
}
}
client
.withRequestTimeout(Duration.fromMilliseconds(request.options.readTimeout.toMillis))
.newService(uriToFinagleDestination(request.uri))
val finagleDest = uriToFinagleDestination(request.uri)
clientCache.getOrElseUpdate(
finagleDest,
client
.withRequestTimeout(Duration.fromMilliseconds(request.options.readTimeout.toMillis))
.newService(finagleDest)
)
}

private def uriToFinagleDestination(uri: Uri): String = {
Expand Down