adutra commented on code in PR #8857:
URL: https://github.com/apache/iceberg/pull/8857#discussion_r1367434248
##########
nessie/src/main/java/org/apache/iceberg/nessie/NessieIcebergClient.java:
##########
@@ -181,133 +185,223 @@ public IcebergTable table(TableIdentifier
tableIdentifier) {
}
public void createNamespace(Namespace namespace, Map<String, String>
metadata) {
+ getRef().checkMutable();
+
+ if (namespace.isEmpty()) {
+ throw new IllegalArgumentException("Creating empty namespaces is not
supported");
+ }
+
+ ContentKey key = ContentKey.of(namespace.levels());
+ org.projectnessie.model.Namespace content =
+ org.projectnessie.model.Namespace.of(key.getElements(), metadata);
+
try {
- getRef().checkMutable();
- withReference(
- getApi()
- .createNamespace()
-
.namespace(org.projectnessie.model.Namespace.of(namespace.levels()))
- .properties(metadata))
- .create();
- refresh();
- } catch (NessieNamespaceAlreadyExistsException e) {
- throw new AlreadyExistsException(e, "Namespace already exists: %s",
namespace);
+
+ Map<ContentKey, Content> contentMap =
+ api.getContent().reference(getReference()).key(key).get();
+ Content existing = contentMap.get(key);
+ if (existing != null) {
+ throw namespaceAlreadyExists(key, existing, null);
+ }
+
+ try {
+
+ commitRetry("create namespace " + key, Operation.Put.of(key, content));
+
+ } catch (NessieReferenceConflictException e) {
+
+ NessieConflictHandler.handleSingle(
+ e,
+ (conflictType, contentKey) -> {
+ switch (conflictType) {
+ case KEY_EXISTS:
+ Content conflicting =
+
withReference(api.getContent()).key(contentKey).get().get(contentKey);
+ throw namespaceAlreadyExists(contentKey, conflicting, e);
+ case NAMESPACE_ABSENT:
+ throw new NoSuchNamespaceException(
+ e,
+ "Cannot create Namespace '%s': parent namespace '%s'
does not exist",
+ namespace,
+ contentKey);
+ default:
+ return false;
+ }
+ });
+ throw new RuntimeException(
+ String.format("Cannot create Namespace '%s': %s", namespace,
e.getMessage()));
+ }
+
} catch (NessieNotFoundException e) {
throw new RuntimeException(
String.format(
- "Cannot create Namespace '%s': " + "ref '%s' is no longer
valid.",
+ "Cannot create Namespace '%s': ref '%s' is no longer valid.",
namespace, getRef().getName()),
e);
+ } catch (BaseNessieClientServerException e) {
+ throw new RuntimeException(
+ String.format("Cannot create Namespace '%s': %s", namespace,
e.getMessage()), e);
}
}
public List<Namespace> listNamespaces(Namespace namespace) throws
NoSuchNamespaceException {
+
try {
- GetNamespacesResponse response =
- withReference(
- getApi()
- .getMultipleNamespaces()
-
.namespace(org.projectnessie.model.Namespace.of(namespace.levels())))
- .get();
- return response.getNamespaces().stream()
- .map(ns -> Namespace.of(ns.getElements().toArray(new String[0])))
- .filter(ns -> ns.length() == namespace.length() + 1)
+
+ org.projectnessie.model.Namespace root =
+ org.projectnessie.model.Namespace.of(namespace.levels());
+
+ String filter =
+ namespace.isEmpty()
Review Comment:
I'd note that it's not possible to create empty namespaces, so in theory
it's not possible to get here with an empty namespace.
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