| /* |
| * 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. |
| */ |
| package org.apache.iceberg; |
| |
| import org.apache.iceberg.exceptions.CommitFailedException; |
| import org.apache.iceberg.relocated.com.google.common.base.Preconditions; |
| |
| /** |
| * Append implementation that produces a minimal number of manifest files. |
| * |
| * <p>This implementation will attempt to commit 5 times before throwing {@link |
| * CommitFailedException}. |
| */ |
| class MergeAppend extends MergingSnapshotProducer<AppendFiles> implements AppendFiles { |
| MergeAppend(String tableName, TableOperations ops) { |
| super(tableName, ops); |
| } |
| |
| @Override |
| protected AppendFiles self() { |
| return this; |
| } |
| |
| @Override |
| protected String operation() { |
| return DataOperations.APPEND; |
| } |
| |
| @Override |
| public MergeAppend appendFile(DataFile file) { |
| add(file); |
| return this; |
| } |
| |
| @Override |
| public MergeAppend toBranch(String branch) { |
| targetBranch(branch); |
| return this; |
| } |
| |
| @Override |
| public AppendFiles appendManifest(ManifestFile manifest) { |
| Preconditions.checkArgument( |
| !manifest.hasExistingFiles(), "Cannot append manifest with existing files"); |
| Preconditions.checkArgument( |
| !manifest.hasDeletedFiles(), "Cannot append manifest with deleted files"); |
| Preconditions.checkArgument( |
| manifest.snapshotId() == null || manifest.snapshotId() == -1, |
| "Snapshot id must be assigned during commit"); |
| Preconditions.checkArgument( |
| manifest.sequenceNumber() == -1, "Sequence must be assigned during commit"); |
| add(manifest); |
| return this; |
| } |
| } |