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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| use std::fmt::Debug; | ||
|
|
||
| use dozer_types::{ | ||
| grpc_types::{ | ||
| internal::{ | ||
| internal_pipeline_service_client::InternalPipelineServiceClient, AliasEventsRequest, | ||
| AliasRedirected, OperationsRequest, | ||
| }, | ||
| types::Operation, | ||
| }, | ||
| log::warn, | ||
| models::api_config::GrpcApiOptions, | ||
| }; | ||
| use futures_util::{Future, StreamExt}; | ||
| use tokio::sync::broadcast::{Receiver, Sender}; | ||
| use tonic::{transport::Channel, Streaming}; | ||
|
|
||
| use crate::errors::GrpcError; | ||
|
|
||
| #[derive(Debug)] | ||
| pub struct InternalPipelineClient { | ||
| client: InternalPipelineServiceClient<Channel>, | ||
| } | ||
|
|
||
| impl InternalPipelineClient { | ||
| pub async fn new(app_grpc_config: &GrpcApiOptions) -> Result<Self, GrpcError> { | ||
| let address = format!( | ||
| "http://{:}:{:}", | ||
| &app_grpc_config.host, app_grpc_config.port | ||
| ); | ||
| let client = InternalPipelineServiceClient::connect(address) | ||
| .await | ||
| .map_err(|err| GrpcError::InternalError(Box::new(err)))?; | ||
| Ok(Self { client }) | ||
| } | ||
|
|
||
| pub async fn stream_alias_events( | ||
| &mut self, | ||
| ) -> Result< | ||
| ( | ||
| Receiver<AliasRedirected>, | ||
| impl Future<Output = Result<(), GrpcError>>, | ||
| ), | ||
| GrpcError, | ||
| > { | ||
| let stream = self | ||
| .client | ||
| .stream_alias_events(AliasEventsRequest {}) | ||
| .await | ||
| .map_err(|err| GrpcError::InternalError(Box::new(err)))? | ||
| .into_inner(); | ||
| let (sender, receiver) = tokio::sync::broadcast::channel(16); | ||
| let future = redirect_loop(stream, sender); | ||
| Ok((receiver, future)) | ||
| } | ||
|
|
||
| pub async fn stream_operations( | ||
| &mut self, | ||
| ) -> Result< | ||
| ( | ||
| Receiver<Operation>, | ||
| impl Future<Output = Result<(), GrpcError>>, | ||
| ), | ||
| GrpcError, | ||
| > { | ||
| let stream = self | ||
| .client | ||
| .stream_operations(OperationsRequest {}) | ||
| .await | ||
| .map_err(|err| GrpcError::InternalError(Box::new(err)))? | ||
| .into_inner(); | ||
| let (sender, receiver) = tokio::sync::broadcast::channel(16); | ||
| let future = redirect_loop(stream, sender); | ||
| Ok((receiver, future)) | ||
| } | ||
| } | ||
|
|
||
| async fn redirect_loop<T: Debug>( | ||
| mut stream: Streaming<T>, | ||
| sender: Sender<T>, | ||
| ) -> Result<(), GrpcError> { | ||
| while let Some(event) = stream.next().await { | ||
| let event = event.map_err(|err| GrpcError::InternalError(Box::new(err)))?; | ||
| sender | ||
| .send(event) | ||
| .map_err(|_| GrpcError::CannotSendToBroadcastChannel)?; | ||
| } | ||
| warn!("exiting internal grpc connection on api thread"); | ||
| Ok(()) | ||
| } |
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