nastra commented on code in PR #10926:
URL: https://github.com/apache/iceberg/pull/10926#discussion_r1718243019
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core/src/main/java/org/apache/iceberg/hadoop/HadoopFileIO.java:
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@@ -63,7 +63,11 @@ public class HadoopFileIO implements HadoopConfigurable,
DelegateFileIO {
* <p>{@link Configuration Hadoop configuration} must be set through {@link
* HadoopFileIO#setConf(Configuration)}
*/
- public HadoopFileIO() {}
+ public HadoopFileIO() {
+ // Create a default hadoopConf as it is required for the object to be
valid.
+ // E.g. newInputFile would throw NPE with hadoopConf.get() otherwise.
+ this.hadoopConf = new SerializableConfiguration(new Configuration())::get;
Review Comment:
ah you're right that this will add a Hadoop dependency and we don't want
that.
Rather than setting a conf in the constructor, maybe we should have some
handling in `conf()`, such as
```
public Configuration conf() {
- return hadoopConf.get();
+ return
Optional.ofNullable(hadoopConf).map(Supplier::get).orElseGet(Configuration::new);
}
```
We would need to adjust all the places that call `hadoopConf.get()` to call
`conf()` after this change. That way we wouldn't need to unnecessarily
instantiate a conf in the constructor when we don't have to, wdyt?
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