commonMain.aws.sdk.kotlin.services.lexruntimev2.serde.StartConversationOperationDeserializer.kt Maven / Gradle / Ivy

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// Code generated by smithy-kotlin-codegen. DO NOT EDIT!

package aws.sdk.kotlin.services.lexruntimev2.serde

import aws.sdk.kotlin.services.lexruntimev2.model.LexRuntimeV2Exception
import aws.sdk.kotlin.services.lexruntimev2.model.StartConversationResponse
import aws.sdk.kotlin.services.lexruntimev2.model.StartConversationResponseEventStream
import aws.smithy.kotlin.runtime.ClientException
import aws.smithy.kotlin.runtime.awsprotocol.eventstream.MessageType
import aws.smithy.kotlin.runtime.awsprotocol.eventstream.decodeFrames
import aws.smithy.kotlin.runtime.awsprotocol.eventstream.type
import aws.smithy.kotlin.runtime.awsprotocol.json.RestJsonErrorDeserializer
import aws.smithy.kotlin.runtime.awsprotocol.setAseErrorMetadata
import aws.smithy.kotlin.runtime.awsprotocol.withPayload
import aws.smithy.kotlin.runtime.http.HttpCall
import aws.smithy.kotlin.runtime.http.isSuccess
import aws.smithy.kotlin.runtime.http.operation.HttpDeserializer
import aws.smithy.kotlin.runtime.http.readAll
import aws.smithy.kotlin.runtime.http.toSdkByteReadChannel
import aws.smithy.kotlin.runtime.operation.ExecutionContext
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.map


internal class StartConversationOperationDeserializer: HttpDeserializer.Streaming {

    override suspend fun deserialize(context: ExecutionContext, call: HttpCall): StartConversationResponse {
        val response = call.response
        if (!response.status.isSuccess()) {
            val payload = response.body.readAll()
            throwStartConversationError(context, call, payload)
        }
        val builder = StartConversationResponse.Builder()

        deserializeStartConversationOperationBody(builder, call)
        builder.correctErrors()
        return builder.build()
    }
}

private fun throwStartConversationError(context: ExecutionContext, call: HttpCall, payload: ByteArray?): kotlin.Nothing {
    val wrappedResponse = call.response.withPayload(payload)
    val wrappedCall = call.copy(response = wrappedResponse)

    val errorDetails = try {
        RestJsonErrorDeserializer.deserialize(call.response.headers, payload)
    } catch (ex: Exception) {
        throw LexRuntimeV2Exception("Failed to parse response as 'restJson1' error", ex).also {
            setAseErrorMetadata(it, wrappedCall.response, null)
        }
    }

    val ex = when(errorDetails.code) {
        "AccessDeniedException" -> AccessDeniedExceptionDeserializer().deserialize(context, wrappedCall, payload)
        "ThrottlingException" -> ThrottlingExceptionDeserializer().deserialize(context, wrappedCall, payload)
        "ValidationException" -> ValidationExceptionDeserializer().deserialize(context, wrappedCall, payload)
        "InternalServerException" -> InternalServerExceptionDeserializer().deserialize(context, wrappedCall, payload)
        else -> LexRuntimeV2Exception(errorDetails.message)
    }

    setAseErrorMetadata(ex, wrappedResponse, errorDetails)
    throw ex
}

internal suspend fun deserializeStartConversationOperationBody(builder: StartConversationResponse.Builder, call: HttpCall) {
    val chan = call.response.body.toSdkByteReadChannel(call) ?: return
    val frames = decodeFrames(chan)
    val events = frames
        .map { message ->
            when (val mt = message.type()) {
                is MessageType.Event -> when (mt.shapeType) {
                    "PlaybackInterruptionEvent" -> {
                        val e = deserializePlaybackInterruptionEventPayload(message.payload)
                        StartConversationResponseEventStream.PlaybackInterruptionEvent(e)
                    }
                    "TranscriptEvent" -> {
                        val e = deserializeTranscriptEventPayload(message.payload)
                        StartConversationResponseEventStream.TranscriptEvent(e)
                    }
                    "IntentResultEvent" -> {
                        val e = deserializeIntentResultEventPayload(message.payload)
                        StartConversationResponseEventStream.IntentResultEvent(e)
                    }
                    "TextResponseEvent" -> {
                        val e = deserializeTextResponseEventPayload(message.payload)
                        StartConversationResponseEventStream.TextResponseEvent(e)
                    }
                    "AudioResponseEvent" -> {
                        val e = deserializeAudioResponseEventPayload(message.payload)
                        StartConversationResponseEventStream.AudioResponseEvent(e)
                    }
                    "HeartbeatEvent" -> {
                        val e = deserializeHeartbeatEventPayload(message.payload)
                        StartConversationResponseEventStream.HeartbeatEvent(e)
                    }
                    else -> StartConversationResponseEventStream.SdkUnknown
                }
                is MessageType.Exception -> when (mt.shapeType) {
                    "AccessDeniedException" -> {
                        val err = deserializeAccessDeniedExceptionPayload(message.payload)
                        throw err
                    }
                    "ResourceNotFoundException" -> {
                        val err = deserializeResourceNotFoundExceptionPayload(message.payload)
                        throw err
                    }
                    "ValidationException" -> {
                        val err = deserializeValidationExceptionPayload(message.payload)
                        throw err
                    }
                    "ThrottlingException" -> {
                        val err = deserializeThrottlingExceptionPayload(message.payload)
                        throw err
                    }
                    "InternalServerException" -> {
                        val err = deserializeInternalServerExceptionPayload(message.payload)
                        throw err
                    }
                    "ConflictException" -> {
                        val err = deserializeConflictExceptionPayload(message.payload)
                        throw err
                    }
                    "DependencyFailedException" -> {
                        val err = deserializeDependencyFailedExceptionPayload(message.payload)
                        throw err
                    }
                    "BadGatewayException" -> {
                        val err = deserializeBadGatewayExceptionPayload(message.payload)
                        throw err
                    }
                    else -> throw LexRuntimeV2Exception("error processing event stream, unrecognized errorType: ${mt.shapeType}")
                }
                is MessageType.Error -> throw LexRuntimeV2Exception("error processing event stream: errorCode=${mt.errorCode}; message=${mt.message}")
                is MessageType.SdkUnknown -> throw ClientException("unrecognized event stream message `:message-type`: ${mt.messageType}")
            }
        }

    builder.responseEventStream = events
}