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49 changes: 49 additions & 0 deletions
49
src/main/scala/com/cloud/apim/otoroshi/extensions/aigateway/decorators/fallback.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| package com.cloud.apim.otoroshi.extensions.aigateway.decorators | ||
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|
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| import com.cloud.apim.otoroshi.extensions.aigateway.entities.AiProvider | ||
| import com.cloud.apim.otoroshi.extensions.aigateway.{ChatClient, ChatPrompt, ChatResponse} | ||
| import otoroshi.env.Env | ||
| import otoroshi.utils.TypedMap | ||
| import otoroshi.utils.syntax.implicits._ | ||
| import otoroshi_plugins.com.cloud.apim.extensions.aigateway.AiExtension | ||
| import play.api.libs.json.{JsValue, Json} | ||
|
|
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| import scala.concurrent.{ExecutionContext, Future} | ||
|
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| object ChatClientWithProviderFallback { | ||
| def applyIfPossible(tuple: (AiProvider, ChatClient)): ChatClient = { | ||
| if (tuple._1.providerFallback.isDefined) { | ||
| new ChatClientWithProviderFallback(tuple._1, tuple._2) | ||
| } else { | ||
| tuple._2 | ||
| } | ||
| } | ||
| } | ||
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| class ChatClientWithProviderFallback(originalProvider: AiProvider, chatClient: ChatClient) extends ChatClient { | ||
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| override def call(originalPrompt: ChatPrompt, attrs: TypedMap)(implicit ec: ExecutionContext, env: Env): Future[Either[JsValue, ChatResponse]] = { | ||
| chatClient.call(originalPrompt, attrs).flatMap { | ||
| case Left(err) => { | ||
| env.adminExtensions.extension[AiExtension].flatMap(_.states.provider(originalProvider.providerFallback.get)) match { | ||
| case None => err.leftf | ||
| case Some(provider) => provider.getChatClient() match { | ||
| case None => err.leftf | ||
| case Some(fallbackClient) => fallbackClient.call(originalPrompt, attrs) | ||
| } | ||
| } | ||
| } | ||
| case Right(resp) => resp.rightf | ||
| }.recoverWith { | ||
| case t: Throwable => { | ||
| env.adminExtensions.extension[AiExtension].flatMap(_.states.provider(originalProvider.providerFallback.get)) match { | ||
| case None => Json.obj("error" -> "fallback provider not found").leftf | ||
| case Some(provider) => provider.getChatClient() match { | ||
| case None => Json.obj("error" -> "fallback client not found").leftf | ||
| case Some(fallbackClient) => fallbackClient.call(originalPrompt, attrs) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
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