rdblue commented on code in PR #16936:
URL: https://github.com/apache/iceberg/pull/16936#discussion_r4020867821
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core/src/main/java/org/apache/iceberg/TrackedFileAdapters.java:
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@@ -552,6 +609,511 @@ public ManifestFile copy() {
}
}
+ /** Shared base for content-file (DATA / EQUALITY_DELETES) write-direction
wrappers. */
+ abstract static class ContentTrackedFile<F extends ContentFile<F>>
+ implements TrackedFile, StructLike {
+ private final Types.StructType partitionType;
+ private final MapBackedContentStats statsWrapper;
+
+ private Tracking tracking;
+ private F file;
+ private StructProjection partition;
+ private ContentStats stats;
+
+ ContentTrackedFile(Schema writeSchema) {
+ Preconditions.checkArgument(writeSchema != null, "Invalid write schema:
null");
+ Types.StructType statsType = nestedStruct(writeSchema,
TrackedFile.CONTENT_STATS_ID);
+ this.partitionType = nestedStruct(writeSchema, TrackedFile.PARTITION_ID);
+ this.statsWrapper = statsType != null ? new
MapBackedContentStats(statsType) : null;
+ }
+
+ TrackedFile wrapWithTracking(F newFile, Tracking newTracking) {
+ Preconditions.checkArgument(newFile != null, "Invalid file: null");
+ Preconditions.checkArgument(newTracking != null, "Invalid tracking:
null");
+ validateContent(newFile);
+
+ if (newFile instanceof TrackedContentFile) {
Review Comment:
This should be the first check. If we have a tracked file already, just
return it. The `instanceof` check fails for `null` so the null check can go
later.
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