-
Notifications
You must be signed in to change notification settings - Fork 2.2k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
2 changed files
with
117 additions
and
25 deletions.
There are no files selected for viewing
99 changes: 99 additions & 0 deletions
99
core/src/main/java/org/apache/iceberg/io/PartitionProjection.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| /* | ||
| * 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.io; | ||
|
|
||
| import org.apache.iceberg.PartitionSpec; | ||
| import org.apache.iceberg.StructLike; | ||
| import org.apache.iceberg.types.Types; | ||
| import org.apache.iceberg.util.StructProjection; | ||
|
|
||
| public interface PartitionProjection extends StructLike { | ||
|
|
||
| PartitionProjection create(PartitionSpec spec, Types.StructType commonPartitionType); | ||
|
|
||
| PartitionProjection wrap(StructLike newStruct); | ||
|
|
||
| static PartitionProjection of(PartitionSpec spec, Types.StructType commonPartitionType) { | ||
| if (spec.isUnpartitioned()) { | ||
| return UnpartitionedSpecProjection.INSTANCE; | ||
| } else { | ||
| return new PartitionedSpecProjection().create(spec, commonPartitionType); | ||
| } | ||
| } | ||
|
|
||
| class UnpartitionedSpecProjection implements PartitionProjection { | ||
| static final PartitionProjection INSTANCE = new UnpartitionedSpecProjection(); | ||
|
|
||
| @Override | ||
| public PartitionProjection create(PartitionSpec spec, Types.StructType commonPartitionType) { | ||
| return this; | ||
| } | ||
|
|
||
| @Override | ||
| public PartitionProjection wrap(StructLike newStruct) { | ||
| return null; | ||
| } | ||
|
|
||
| @Override | ||
| public int size() { | ||
| return 0; | ||
| } | ||
|
|
||
| @Override | ||
| public <T> T get(int pos, Class<T> javaClass) { | ||
| throw new IllegalArgumentException("UnpartitionedSpecProjection does not allow set"); | ||
| } | ||
|
|
||
| @Override | ||
| public <T> void set(int pos, T value) { | ||
| throw new IllegalArgumentException("UnpartitionedSpecProjection does not allow get"); | ||
| } | ||
| } | ||
|
|
||
| class PartitionedSpecProjection implements PartitionProjection { | ||
| private StructProjection structProjection; | ||
|
|
||
| @Override | ||
| public PartitionProjection create(PartitionSpec spec, Types.StructType commonPartitionType) { | ||
| this.structProjection = StructProjection.create(commonPartitionType, spec.partitionType()); | ||
| return this; | ||
| } | ||
|
|
||
| @Override | ||
| public PartitionProjection wrap(StructLike newStruct) { | ||
| this.structProjection = structProjection.wrap(newStruct); | ||
| return this; | ||
| } | ||
|
|
||
| @Override | ||
| public int size() { | ||
| return this.structProjection.size(); | ||
| } | ||
|
|
||
| @Override | ||
| public <T> T get(int pos, Class<T> javaClass) { | ||
| return this.structProjection.get(pos, javaClass); | ||
| } | ||
|
|
||
| @Override | ||
| public <T> void set(int pos, T value) { | ||
| this.structProjection.set(pos, value); | ||
| } | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters