| """ |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| """ |
| |
| |
| class TableRollback: |
| """Rollback table to instant by delegating to catalog.rollback_to.""" |
| |
| def __init__(self, catalog, identifier): |
| self._catalog = catalog |
| self._identifier = identifier |
| |
| def rollback_to(self, instant, from_snapshot=None): |
| """Rollback table to the given instant via catalog. |
| |
| Args: |
| instant: The Instant (SnapshotInstant or TagInstant) to rollback to. |
| from_snapshot: Optional snapshot ID. Success only occurs when the |
| latest snapshot is this snapshot. |
| |
| Raises: |
| RuntimeError: If the rollback fails. |
| """ |
| try: |
| self._catalog.rollback_to(self._identifier, instant, from_snapshot) |
| except Exception as e: |
| raise RuntimeError( |
| "Failed to rollback table {}: {}".format( |
| self._identifier, e)) from e |
