dimas-b commented on code in PR #4091:
URL: https://github.com/apache/polaris/pull/4091#discussion_r3029861082
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runtime/service/src/main/java/org/apache/polaris/service/catalog/iceberg/IcebergCatalogHandler.java:
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@@ -302,6 +291,23 @@ public ListNamespacesResponse listNamespaces(Namespace
parent) {
return catalogHandlerUtils().listNamespaces(namespaceCatalog, parent);
}
+ public ListNamespacesResponse listNamespaces(
+ Namespace parent, String pageToken, Integer pageSize) {
+ PolarisAuthorizableOperation op =
PolarisAuthorizableOperation.LIST_NAMESPACES;
+ authorizeBasicNamespaceOperationOrThrow(op, parent);
+
+ if (isFederated) {
+ return catalogHandlerUtils().listNamespaces(namespaceCatalog, parent,
pageToken, pageSize);
+ } else {
+ PageToken pageRequest = PageToken.build(pageToken, pageSize,
this::shouldDecodeToken);
+ var results = ((IcebergCatalog) baseCatalog).listNamespaces(parent,
pageRequest);
Review Comment:
I maintain my assessment that this refactoring is not conceptually better
than the old code in terms of explicit / implicit logic (more specific comments
above).
If you prefer to emphasize `isFederated`, that's fine. However, such a
refactoring should not demote checked casts to unchecked (assumed) casts, IMHO.
Please consider what will happen if
`catalogFactory().createCallContextCatalog()` returns some other type.
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