tmater commented on code in PR #2261:
URL: https://github.com/apache/polaris/pull/2261#discussion_r2256377736
##########
service/common/src/main/java/org/apache/polaris/service/admin/PolarisAdminService.java:
##########
@@ -200,6 +205,43 @@ private Optional<CatalogRoleEntity>
findCatalogRoleByName(String catalogName, St
.map(path -> CatalogRoleEntity.of(path.getRawLeafEntity()));
}
+ private <T> Stream<T> loadEntities(
+ @Nonnull PolarisEntityType entityType,
+ @Nonnull PolarisEntitySubType entitySubType,
+ @Nullable PolarisEntity catalogEntity,
+ @Nonnull Function<PolarisBaseEntity, T> transformer) {
+ List<PolarisEntityCore> catalogPath;
+ long catalogId;
+ if (catalogEntity == null) {
+ catalogPath = null;
+ catalogId = 0;
+ } else {
+ catalogPath = PolarisEntity.toCoreList(List.of(catalogEntity));
+ catalogId = catalogEntity.getId();
+ }
+ // TODO: add loadEntities method to PolarisMetaStoreManager
+ // loadEntity may return null due to multiple non-atomic API calls to the
persistence layer.
+ // Specifically, this can happen when a PolarisEntity is returned by
listEntities, but cannot be
+ // loaded afterward because it was purged by another process before it
could be loaded.
+ return metaStoreManager
+ .listEntities(
+ getCurrentPolarisContext(),
+ catalogPath,
+ entityType,
+ entitySubType,
+ PageToken.readEverything())
+ .getEntities()
+ .stream()
+ .map(
+ nameAndId ->
+ metaStoreManager.loadEntity(
+ getCurrentPolarisContext(), catalogId, nameAndId.getId(),
nameAndId.getType()))
Review Comment:
Thanks for clarifying it!
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