liurenjie1024 commented on issue #1650:
URL: https://github.com/apache/iceberg-rust/issues/1650#issuecomment-3257868009
Thanks @CTTY for raising this. I agree that the current writer class
hierarchy is somehow cumbersome and over complicated. I plan to do a
refactoring after the `FileFormat` api proposal got merged.
For now I would suggest to make the changes minimum. So here is what's in my
mind:
1.Adding one layer: `PartitioningWriter`, which sould like
```
pub trait PartitioningWriter {
fn write(&self, partition_key: PartitionKey, batch: RecordBatch);
}
struct ClusterdPartitioningWriter {...}
impl PartitioningWriter for ClusterdPartitioningWriter {}
struct FanoutParritioningWriter {
writers: HashMap<Struct, RollingFileWriter>
....
}
impl PartitioningWriter for FanoutParritioningWriter {}
```
2. Remove the `FileWriter` trait from `RollingFileWriter`
3. Move the `LocationGenerator` and `FilenameGenerator` to
`RollingFileWriter`
4. Change `FileWriterBuilder` trait to accept an `OutputFile` to build
`FileWriter`
WDYT?
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