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SharedHttpClient.scala
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SharedHttpClient.scala
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package pl.touk.nussknacker.openapi.http.backend
import org.asynchttpclient.{AsyncHttpClient, DefaultAsyncHttpClient}
import pl.touk.nussknacker.engine.api.MetaData
import pl.touk.nussknacker.engine.api.runtimecontext.EngineRuntimeContext
import pl.touk.nussknacker.engine.util.sharedservice.{SharedService, SharedServiceHolder}
import pl.touk.nussknacker.http.backend.{HttpBackendProvider, HttpClientConfig}
import sttp.client3.SttpBackend
import sttp.client3.asynchttpclient.future.AsyncHttpClientFutureBackend
import scala.concurrent.{ExecutionContext, Future}
class SharedHttpClientBackendProvider(httpClientConfig: HttpClientConfig) extends HttpBackendProvider {
private var httpClient: SharedHttpClient = _
override def open(context: EngineRuntimeContext): Unit = {
httpClient = SharedHttpClientBackendProvider.retrieveService(httpClientConfig)(context.jobData.metaData)
}
override def httpBackendForEc(implicit ec: ExecutionContext): SttpBackend[Future, Any] =
AsyncHttpClientFutureBackend.usingClient(httpClient.httpClient)
override def close(): Unit = Option(httpClient).foreach(_.close())
}
object SharedHttpClientBackendProvider extends SharedServiceHolder[HttpClientConfig, SharedHttpClient] {
override protected def createService(config: HttpClientConfig, metaData: MetaData): SharedHttpClient = {
val httpClientConfig = config.toAsyncHttpClientConfig(Option(metaData.id))
new SharedHttpClient(new DefaultAsyncHttpClient(httpClientConfig.build()), config)
}
}
class SharedHttpClient(val httpClient: AsyncHttpClient, config: HttpClientConfig) extends SharedService[HttpClientConfig] {
override def creationData: HttpClientConfig = config
override protected def sharedServiceHolder: SharedHttpClientBackendProvider.type = SharedHttpClientBackendProvider
override def internalClose(): Unit = httpClient.close()
}