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21 changes: 8 additions & 13 deletions src/loader.rs
Original file line number Diff line number Diff line change
Expand Up @@ -189,22 +189,17 @@ fn process_batch(
seen_nodes: &mut AHashMap<i64, Point<f64>>,
) -> Result<()> {
// Extract and validate required columns, providing clear errors for type mismatches
fn require_column<'a, T: 'static>(
batch: &'a RecordBatch,
name: &str,
) -> Result<&'a T> {
fn require_column<'a, T: 'static>(batch: &'a RecordBatch, name: &str) -> Result<&'a T> {
let col = batch
.column_by_name(name)
.ok_or_else(|| anyhow!("Missing required column '{name}'"))?;
col.as_any()
.downcast_ref::<T>()
.ok_or_else(|| {
anyhow!(
"Column '{name}' has type {:?}, expected {:?}",
col.data_type(),
std::any::type_name::<T>()
)
})
col.as_any().downcast_ref::<T>().ok_or_else(|| {
anyhow!(
"Column '{name}' has type {:?}, expected {:?}",
col.data_type(),
std::any::type_name::<T>()
)
})
}

let stable_edge_id = require_column::<UInt64Array>(batch, "stableEdgeId")?;
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