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use crate::nar::RenderError;
use crate::proto;
use crate::{nar::NARCalculationService, pathinfoservice::PathInfoService};
use tonic::{async_trait, Request, Response, Result, Status};
use tracing::{instrument, warn};
pub struct GRPCPathInfoServiceWrapper<PS: PathInfoService, NS: NARCalculationService> {
path_info_service: PS,
nar_calculation_service: NS,
}
impl<PS: PathInfoService, NS: NARCalculationService> GRPCPathInfoServiceWrapper<PS, NS> {
pub fn new(path_info_service: PS, nar_calculation_service: NS) -> Self {
Self {
path_info_service,
nar_calculation_service,
}
}
}
#[async_trait]
impl<
PS: PathInfoService + Send + Sync + 'static,
NS: NARCalculationService + Send + Sync + 'static,
> proto::path_info_service_server::PathInfoService for GRPCPathInfoServiceWrapper<PS, NS>
{
#[instrument(skip(self))]
async fn get(
&self,
request: Request<proto::GetPathInfoRequest>,
) -> Result<Response<proto::PathInfo>> {
match request.into_inner().by_what {
None => Err(Status::unimplemented("by_what needs to be specified")),
Some(by_what) => match self.path_info_service.get(by_what) {
Ok(None) => Err(Status::not_found("PathInfo not found")),
Ok(Some(path_info)) => Ok(Response::new(path_info)),
Err(e) => {
warn!("failed to retrieve PathInfo: {}", e);
Err(e.into())
}
},
}
}
#[instrument(skip(self))]
async fn put(&self, request: Request<proto::PathInfo>) -> Result<Response<proto::PathInfo>> {
let path_info = request.into_inner();
// Store the PathInfo in the client. Clients MUST validate the data
// they receive, so we don't validate additionally here.
match self.path_info_service.put(path_info) {
Ok(path_info_new) => Ok(Response::new(path_info_new)),
Err(e) => {
warn!("failed to insert PathInfo: {}", e);
Err(e.into())
}
}
}
#[instrument(skip(self))]
async fn calculate_nar(
&self,
request: Request<proto::Node>,
) -> Result<Response<proto::CalculateNarResponse>> {
match request.into_inner().node {
None => Err(Status::invalid_argument("no root node sent")),
Some(root_node) => match self.nar_calculation_service.calculate_nar(root_node) {
Ok(resp) => Ok(Response::new(resp)),
Err(e) => Err(e.into()),
},
}
}
}
impl From<RenderError> for tonic::Status {
fn from(value: RenderError) -> Self {
match value {
RenderError::BlobNotFound(_, _) => Self::not_found(value.to_string()),
RenderError::DirectoryNotFound(_, _) => Self::not_found(value.to_string()),
RenderError::NARWriterError(_) => Self::internal(value.to_string()),
RenderError::StoreError(_) => Self::internal(value.to_string()),
RenderError::UnexpectedBlobMeta(_, _, _, _) => Self::internal(value.to_string()),
}
}
}
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