| use dora_core::{ |
| config::{DataId, NodeId}, |
| descriptor::{Descriptor, OperatorDefinition, OperatorSource}, |
| message::{ArrowTypeInfo, MetadataParameters}, |
| }; |
| use dora_node_api::{DataSample, Event}; |
| use eyre::{Context, Result}; |
| use std::any::Any; |
| use tokio::sync::{mpsc::Sender, oneshot}; |
|
|
| pub mod channel; |
| #[cfg(feature = "python")] |
| mod python; |
| mod shared_lib; |
|
|
| #[allow(unused_variables)] |
| pub fn run_operator( |
| node_id: &NodeId, |
| operator_definition: OperatorDefinition, |
| incoming_events: flume::Receiver<Event>, |
| events_tx: Sender<OperatorEvent>, |
| init_done: oneshot::Sender<Result<()>>, |
| dataflow_descriptor: &Descriptor, |
| ) -> eyre::Result<()> { |
| match &operator_definition.config.source { |
| OperatorSource::SharedLibrary(source) => { |
| shared_lib::run( |
| node_id, |
| &operator_definition.id, |
| source, |
| events_tx, |
| incoming_events, |
| init_done, |
| ) |
| .wrap_err_with(|| { |
| format!( |
| "failed to spawn shared library operator for {}", |
| operator_definition.id |
| ) |
| })?; |
| } |
| #[allow(unused_variables)] |
| OperatorSource::Python(source) => { |
| #[cfg(feature = "python")] |
| python::run( |
| node_id, |
| &operator_definition.id, |
| source, |
| events_tx, |
| incoming_events, |
| init_done, |
| dataflow_descriptor, |
| ) |
| .wrap_err_with(|| { |
| format!( |
| "failed to spawn Python operator for {}", |
| operator_definition.id |
| ) |
| })?; |
| #[cfg(not(feature = "python"))] |
| tracing::error!( |
| "Dora runtime tried spawning Python Operator outside of python environment." |
| ); |
| } |
| OperatorSource::Wasm(_) => { |
| tracing::error!("WASM operators are not supported yet"); |
| } |
| } |
| Ok(()) |
| } |
|
|
| #[derive(Debug)] |
| #[allow(dead_code)] |
| pub enum OperatorEvent { |
| AllocateOutputSample { |
| len: usize, |
| sample: oneshot::Sender<eyre::Result<DataSample>>, |
| }, |
| Output { |
| output_id: DataId, |
| type_info: ArrowTypeInfo, |
| parameters: MetadataParameters, |
| data: Option<DataSample>, |
| }, |
| Error(eyre::Error), |
| Panic(Box<dyn Any + Send>), |
| Finished { |
| reason: StopReason, |
| }, |
| } |
|
|
| #[derive(Debug)] |
| pub enum StopReason { |
| InputsClosed, |
| ExplicitStop, |
| ExplicitStopAll, |
| } |
|
|
