ajantha-bhat commented on code in PR #8909:
URL: https://github.com/apache/iceberg/pull/8909#discussion_r1374101581
##########
nessie/src/main/java/org/apache/iceberg/nessie/NessieIcebergClient.java:
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@@ -540,4 +630,72 @@ public void close() {
api.close();
}
}
+
+ public void commitView(
+ ViewMetadata base,
+ ViewMetadata metadata,
+ String newMetadataLocation,
+ String contentId,
+ ContentKey key)
+ throws NessieConflictException, NessieNotFoundException {
+ UpdateableReference updateableReference = getRef();
+
+ updateableReference.checkMutable();
+
+ Branch current = (Branch) updateableReference.getReference();
+ Branch expectedHead = current;
+ if (base != null) {
+ String metadataCommitId =
+ base.properties()
+ .getOrDefault(
+ NessieTableOperations.NESSIE_COMMIT_ID_PROPERTY,
expectedHead.getHash());
+ if (metadataCommitId != null) {
+ expectedHead = Branch.of(expectedHead.getName(), metadataCommitId);
+ }
+ }
+
+ long versionId = metadata.currentVersion().versionId();
+
+ ImmutableIcebergView.Builder newViewBuilder =
ImmutableIcebergView.builder();
+ // Directly casting to `SQLViewRepresentation` as only SQL type exist in
+ // `ViewRepresentation.Type`.
+ // Assuming only one engine's dialect will be used, Nessie IcebergView
currently holds one
+ // representation.
+ // View loaded from catalog will have all the representation as it parses
the view metadata
+ // file.
+ SQLViewRepresentation sqlViewRepresentation =
+ (SQLViewRepresentation)
metadata.currentVersion().representations().get(0);
Review Comment:
Currently Nessie's `IcebergView` model stores only one dialect and
representation. I didn't change Nessie side to hold multiple representation
because it was needed for _global state_. Now that _global state_ is removed in
Nessie, only view metadata location is enough. It will have current version id
and all the representation for that version.
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