refactor: reintroduce From implementation for ParquetSource and add generic From for FileSource

Author: kosiew

datafusion/datasource-parquet/src/source.rs

@@ -432,13 +432,6 @@ pub(crate) fn parse_coerce_int96_string(
     }
 }
 
-/// Allows easy conversion from ParquetSource to Arc<dyn FileSource>
-impl From<ParquetSource> for Arc<dyn FileSource> {
-    fn from(source: ParquetSource) -> Self {
-        Arc::new(source)
-    }
-}
-
 impl FileSource for ParquetSource {
     fn create_file_opener(
         &self,
@@ -670,3 +663,10 @@ impl FileSource for ParquetSource {
         self.schema_adapter_factory.clone()
     }
 }
+
+/// Allows easy conversion from ParquetSource to Arc<dyn FileSource>
+impl From<ParquetSource> for Arc<dyn FileSource> {
+    fn from(source: ParquetSource) -> Self {
+        Arc::new(source)
+    }
+}

datafusion/datasource/src/file.rs

@@ -131,3 +131,10 @@ pub trait FileSource: Send + Sync {
     /// Returns the current schema adapter factory if set
     fn schema_adapter_factory(&self) -> Option<Arc<dyn SchemaAdapterFactory>>;
 }
+
+/// Allows easy conversion from any type implementing FileSource to Arc<dyn FileSource>
+impl<T: FileSource + 'static> From<T> for Arc<dyn FileSource> {
+    fn from(source: T) -> Self {
+        Arc::new(source)
+    }
+}