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package com.softwaremill.sttp.asynchttpclient.scalaz
import java.nio.ByteBuffer
import com.softwaremill.sttp.asynchttpclient.AsyncHttpClientBackend
import com.softwaremill.sttp.impl.scalaz.TaskMonadAsyncError
import com.softwaremill.sttp.{FollowRedirectsBackend, SttpBackend, SttpBackendOptions}
import io.netty.buffer.ByteBuf
import org.asynchttpclient.{AsyncHttpClient, AsyncHttpClientConfig, DefaultAsyncHttpClient}
import org.reactivestreams.Publisher
import scalaz.concurrent.Task
class AsyncHttpClientScalazBackend private (asyncHttpClient: AsyncHttpClient, closeClient: Boolean)
extends AsyncHttpClientBackend[Task, Nothing](asyncHttpClient, TaskMonadAsyncError, closeClient) {
override protected def streamBodyToPublisher(s: Nothing): Publisher[ByteBuf] =
s // nothing is everything
override protected def publisherToStreamBody(p: Publisher[ByteBuffer]): Nothing =
throw new IllegalStateException("This backend does not support streaming")
override protected def publisherToString(p: Publisher[ByteBuffer]): Task[String] =
throw new IllegalStateException("This backend does not support streaming")
}
object AsyncHttpClientScalazBackend {
private def apply(asyncHttpClient: AsyncHttpClient, closeClient: Boolean): SttpBackend[Task, Nothing] =
new FollowRedirectsBackend[Task, Nothing](new AsyncHttpClientScalazBackend(asyncHttpClient, closeClient))
def apply(options: SttpBackendOptions = SttpBackendOptions.Default): SttpBackend[Task, Nothing] =
AsyncHttpClientScalazBackend(AsyncHttpClientBackend.defaultClient(options), closeClient = true)
def usingConfig(cfg: AsyncHttpClientConfig): SttpBackend[Task, Nothing] =
AsyncHttpClientScalazBackend(new DefaultAsyncHttpClient(cfg), closeClient = true)
def usingClient(client: AsyncHttpClient): SttpBackend[Task, Nothing] =
AsyncHttpClientScalazBackend(client, closeClient = false)
}
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