Add rename_view to REST Catalog

pyiceberg/catalog/__init__.py

@@ -670,6 +670,21 @@ def drop_view(self, identifier: Union[str, Identifier]) -> None:
             NoSuchViewError: If a view with the given name does not exist.
         """
 
+    @abstractmethod
+    def rename_view(self, from_identifier: Union[str, Identifier], to_identifier: Union[str, Identifier]) -> None:
+        """Rename a fully classified view name.
+
+        Args:
+            from_identifier (str | Identifier): Existing view identifier.
+            to_identifier (str | Identifier): New view identifier.
+
+        Returns:
+            Table: the updated table instance with its metadata.
+
+        Raises:
+            NoSuchViewError: If a table with the name does not exist.
+        """
+
     @staticmethod
     def identifier_to_tuple(identifier: Union[str, Identifier]) -> Identifier:
         """Parse an identifier to a tuple.

pyiceberg/catalog/dynamodb.py

@@ -550,6 +550,9 @@ def drop_view(self, identifier: Union[str, Identifier]) -> None:
     def view_exists(self, identifier: Union[str, Identifier]) -> bool:
         raise NotImplementedError
 
+    def rename_view(self, from_identifier: Union[str, Identifier], to_identifier: Union[str, Identifier]) -> None:
+        raise NotImplementedError
+
     def _get_iceberg_table_item(self, database_name: str, table_name: str) -> Dict[str, Any]:
         try:
             return self._get_dynamo_item(identifier=f"{database_name}.{table_name}", namespace=database_name)

pyiceberg/catalog/glue.py

@@ -826,6 +826,9 @@ def drop_view(self, identifier: Union[str, Identifier]) -> None:
     def view_exists(self, identifier: Union[str, Identifier]) -> bool:
         raise NotImplementedError
 
+    def rename_view(self, from_identifier: Union[str, Identifier], to_identifier: Union[str, Identifier]) -> None:
+        raise NotImplementedError
+
     @staticmethod
     def __is_iceberg_table(table: "TableTypeDef") -> bool:
         return table.get("Parameters", {}).get(TABLE_TYPE, "").lower() == ICEBERG

pyiceberg/catalog/hive.py

@@ -480,6 +480,9 @@ def list_views(self, namespace: Union[str, Identifier]) -> List[Identifier]:
     def view_exists(self, identifier: Union[str, Identifier]) -> bool:
         raise NotImplementedError
 
+    def rename_view(self, from_identifier: Union[str, Identifier], to_identifier: Union[str, Identifier]) -> None:
+        raise NotImplementedError
+
     def _create_lock_request(self, database_name: str, table_name: str) -> LockRequest:
         lock_component: LockComponent = LockComponent(
             level=LockLevel.TABLE, type=LockType.EXCLUSIVE, dbname=database_name, tablename=table_name, isTransactional=True

pyiceberg/catalog/noop.py

@@ -128,3 +128,6 @@ def view_exists(self, identifier: Union[str, Identifier]) -> bool:
 
     def drop_view(self, identifier: Union[str, Identifier]) -> None:
         raise NotImplementedError
+
+    def rename_view(self, from_identifier: Union[str, Identifier], to_identifier: Union[str, Identifier]) -> None:
+        raise NotImplementedError

pyiceberg/catalog/rest/__init__.py

@@ -53,6 +53,7 @@
     NoSuchViewError,
     TableAlreadyExistsError,
     UnauthorizedError,
+    ViewAlreadyExistsError,
 )
 from pyiceberg.io import AWS_ACCESS_KEY_ID, AWS_REGION, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN
 from pyiceberg.partitioning import UNPARTITIONED_PARTITION_SPEC, PartitionSpec, assign_fresh_partition_spec_ids
@@ -101,6 +102,7 @@ class Endpoints:
     list_views: str = "namespaces/{namespace}/views"
     drop_view: str = "namespaces/{namespace}/views/{view}"
     view_exists: str = "namespaces/{namespace}/views/{view}"
+    rename_view: str = "views/rename"
 
 
 class IdentifierKind(Enum):
@@ -877,6 +879,28 @@ def drop_view(self, identifier: Union[str]) -> None:
         except HTTPError as exc:
             _handle_non_200_response(exc, {404: NoSuchViewError})
 
+    @retry(**_RETRY_ARGS)
+    def rename_view(self, from_identifier: Union[str, Identifier], to_identifier: Union[str, Identifier]) -> None:
+        payload = {
+            "source": self._split_identifier_for_json(from_identifier),
+            "destination": self._split_identifier_for_json(to_identifier),
+        }
+
+        # Ensure source and destination namespaces exist before rename.
+        source_namespace = self._split_identifier_for_json(from_identifier)["namespace"]
+        dest_namespace = self._split_identifier_for_path(to_identifier)["namespace"]
+
+        if not self.namespace_exists(source_namespace):
+            raise NoSuchNamespaceError(f"Source namespace does not exist: {source_namespace}")
+        if not self.namespace_exists(dest_namespace):
+            raise NoSuchNamespaceError(f"Destination namespace does not exist: {dest_namespace}")
+
+        response = self._session.post(self.url(Endpoints.rename_view), json=payload)
+        try:
+            response.raise_for_status()
+        except HTTPError as exc:
+            _handle_non_200_response(exc, {404: NoSuchViewError, 409: ViewAlreadyExistsError})
+
     def close(self) -> None:
         """Close the catalog and release Session connection adapters.
 

pyiceberg/catalog/sql.py

@@ -744,3 +744,6 @@ def close(self) -> None:
         """
         if hasattr(self, "engine"):
             self.engine.dispose()
+
+    def rename_view(self, from_identifier: Union[str, Identifier], to_identifier: Union[str, Identifier]) -> None:
+        raise NotImplementedError

pyiceberg/exceptions.py

@@ -44,6 +44,10 @@ class NoSuchViewError(Exception):
     """Raises when the view can't be found in the REST catalog."""
 
 
+class ViewAlreadyExistsError(Exception):
+    """Raises when the view being created already exists in the REST catalog."""
+
+
 class NoSuchIdentifierError(Exception):
     """Raises when the identifier can't be found in the REST catalog."""
 

tests/catalog/test_rest.py

@@ -38,6 +38,7 @@
     OAuthError,
     ServerError,
     TableAlreadyExistsError,
+    ViewAlreadyExistsError,
 )
 from pyiceberg.io import load_file_io
 from pyiceberg.partitioning import PartitionField, PartitionSpec
@@ -1918,3 +1919,122 @@ def test_rest_catalog_context_manager_with_exception_sigv4(self, rest_mock: Mock
 
         assert catalog is not None and hasattr(catalog, "_session")
         assert len(catalog._session.adapters) == self.EXPECTED_ADAPTERS_SIGV4
+
+
+def test_rename_view_204(rest_mock: Mocker) -> None:
+    from_identifier = ("some_namespace", "old_view")
+    to_identifier = ("some_namespace", "new_view")
+    rest_mock.head(
+        f"{TEST_URI}v1/namespaces/some_namespace",
+        status_code=200,
+        request_headers=TEST_HEADERS,
+    )
+    rest_mock.post(
+        f"{TEST_URI}v1/views/rename",
+        json={
+            "source": {"namespace": ["some_namespace"], "name": "old_view"},
+            "destination": {"namespace": ["some_namespace"], "name": "new_view"},
+        },
+        status_code=204,
+        request_headers=TEST_HEADERS,
+    )
+    catalog = RestCatalog("rest", uri=TEST_URI, token=TEST_TOKEN)
+    catalog.rename_view(from_identifier, to_identifier)
+    assert (
+        rest_mock.last_request.text
+        == '''{"source": {"namespace": ["some_namespace"], "name": "old_view"}, "destination": {"namespace": ["some_namespace"], "name": "new_view"}}'''
+    )
+
+
+def test_rename_view_404(rest_mock: Mocker) -> None:
+    from_identifier = ("some_namespace", "non_existent_view")
+    to_identifier = ("some_namespace", "new_view")
+    rest_mock.head(
+        f"{TEST_URI}v1/namespaces/some_namespace",
+        status_code=200,
+        request_headers=TEST_HEADERS,
+    )
+    rest_mock.post(
+        f"{TEST_URI}v1/views/rename",
+        json={
+            "error": {
+                "message": "View does not exist: some_namespace.non_existent_view",
+                "type": "NoSuchViewException",
+                "code": 404,
+            }
+        },
+        status_code=404,
+        request_headers=TEST_HEADERS,
+    )
+    catalog = RestCatalog("rest", uri=TEST_URI, token=TEST_TOKEN)
+    with pytest.raises(NoSuchViewError) as exc_info:
+        catalog.rename_view(from_identifier, to_identifier)
+    assert "View does not exist: some_namespace.non_existent_view" in str(exc_info.value)
+
+
+def test_rename_view_409(rest_mock: Mocker) -> None:
+    from_identifier = ("some_namespace", "old_view")
+    to_identifier = ("some_namespace", "existing_view")
+    rest_mock.head(
+        f"{TEST_URI}v1/namespaces/some_namespace",
+        status_code=200,
+        request_headers=TEST_HEADERS,
+    )
+    rest_mock.post(
+        f"{TEST_URI}v1/views/rename",
+        json={
+            "error": {
+                "message": "View already exists: some_namespace.existing_view",
+                "type": "ViewAlreadyExistsException",
+                "code": 409,
+            }
+        },
+        status_code=409,
+        request_headers=TEST_HEADERS,
+    )
+    catalog = RestCatalog("rest", uri=TEST_URI, token=TEST_TOKEN)
+    with pytest.raises(ViewAlreadyExistsError) as exc_info:
+        catalog.rename_view(from_identifier, to_identifier)
+    assert "View already exists: some_namespace.existing_view" in str(exc_info.value)
+
+
+def test_rename_view_source_namespace_does_not_exist(rest_mock: Mocker) -> None:
+    from_identifier = ("non_existent_namespace", "old_view")
+    to_identifier = ("some_namespace", "new_view")
+
+    rest_mock.head(
+        f"{TEST_URI}v1/namespaces/non_existent_namespace",
+        status_code=404,
+        request_headers=TEST_HEADERS,
+    )
+    rest_mock.head(
+        f"{TEST_URI}v1/namespaces/some_namespace",
+        status_code=200,
+        request_headers=TEST_HEADERS,
+    )
+
+    catalog = RestCatalog("rest", uri=TEST_URI, token=TEST_TOKEN)
+    with pytest.raises(NoSuchNamespaceError) as exc_info:
+        catalog.rename_view(from_identifier, to_identifier)
+    assert "Source namespace does not exist: ('non_existent_namespace',)" in str(exc_info.value)
+
+
+def test_rename_view_destination_namespace_does_not_exist(rest_mock: Mocker) -> None:
+    from_identifier = ("some_namespace", "old_view")
+    to_identifier = ("non_existent_namespace", "new_view")
+
+    rest_mock.head(
+        f"{TEST_URI}v1/namespaces/some_namespace",
+        status_code=200,
+        request_headers=TEST_HEADERS,
+    )
+    rest_mock.head(
+        f"{TEST_URI}v1/namespaces/non_existent_namespace",
+        status_code=404,
+        request_headers=TEST_HEADERS,
+    )
+
+    catalog = RestCatalog("rest", uri=TEST_URI, token=TEST_TOKEN)
+    with pytest.raises(NoSuchNamespaceError) as exc_info:
+        catalog.rename_view(from_identifier, to_identifier)
+    assert "Destination namespace does not exist: non_existent_namespace" in str(exc_info.value)