tustvold commented on code in PR #260:
URL: https://github.com/apache/arrow-ballista/pull/260#discussion_r978399070
##########
ballista/rust/core/src/utils.rs:
##########
@@ -54,9 +58,47 @@ use std::time::Duration;
use std::{fs::File, pin::Pin};
use tonic::codegen::StdError;
use tonic::transport::{Channel, Error, Server};
+use url::Url;
-/// Stream data to disk in Arrow IPC format
+/// Default session builder using the provided configuration
+pub fn default_session_builder(config: SessionConfig) -> SessionState {
+ SessionState::with_config_rt(
+ config,
+ Arc::new(
+
RuntimeEnv::new(with_object_store_provider(RuntimeConfig::default()))
+ .unwrap(),
+ ),
+ )
+}
+/// Get a RuntimeConfig with specific ObjectStoreDetector in the
ObjectStoreRegistry
+pub fn with_object_store_provider(config: RuntimeConfig) -> RuntimeConfig {
+
config.with_object_store_registry(Arc::new(ObjectStoreRegistry::new_with_provider(
+ Some(Arc::new(FeatureBasedObjectStoreProvider)),
+ )))
+}
+
+/// An object store detector based on which features are enable for different
kinds of object stores
+pub struct FeatureBasedObjectStoreProvider;
+
+impl ObjectStoreProvider for FeatureBasedObjectStoreProvider {
+ /// Detector a suitable object store based on its url if possible
+ /// Return the key and object store
+ #[allow(unused_variables)]
+ fn get_by_url(&self, url: &Url) -> Option<Arc<dyn ObjectStore>> {
+ #[cfg(feature = "hdfs")]
Review Comment:
How would you distribute binaries for such a system?
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