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1 | // Licensed to the Apache Software Foundation (ASF) under one |
2 | // or more contributor license agreements. See the NOTICE file | |
3 | // distributed with this work for additional information | |
4 | // regarding copyright ownership. The ASF licenses this file | |
5 | // to you under the Apache License, Version 2.0 (the | |
6 | // "License"); you may not use this file except in compliance | |
7 | // with the License. You may obtain a copy of the License at | |
8 | // | |
9 | // http://www.apache.org/licenses/LICENSE-2.0 | |
10 | // | |
11 | // Unless required by applicable law or agreed to in writing, | |
12 | // software distributed under the License is distributed on an | |
13 | // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
14 | // KIND, either express or implied. See the License for the | |
15 | // specific language governing permissions and limitations | |
16 | // under the License. | |
17 | ||
18 | // Non-public Thrift schema serialization utilities | |
19 | ||
20 | #pragma once | |
21 | ||
22 | #include <memory> | |
23 | #include <vector> | |
24 | ||
25 | #include "parquet/platform.h" | |
26 | #include "parquet/schema.h" | |
27 | #include "parquet/types.h" | |
28 | ||
29 | namespace parquet { | |
30 | ||
31 | namespace format { | |
32 | class SchemaElement; | |
33 | } | |
34 | ||
35 | namespace schema { | |
36 | ||
37 | // ---------------------------------------------------------------------- | |
38 | // Conversion from Parquet Thrift metadata | |
39 | ||
40 | PARQUET_EXPORT | |
41 | std::shared_ptr<SchemaDescriptor> FromParquet( | |
42 | const std::vector<format::SchemaElement>& schema); | |
43 | ||
44 | PARQUET_EXPORT | |
45 | std::unique_ptr<Node> Unflatten(const format::SchemaElement* elements, int length); | |
46 | ||
47 | // ---------------------------------------------------------------------- | |
48 | // Conversion to Parquet Thrift metadata | |
49 | ||
50 | PARQUET_EXPORT | |
51 | void ToParquet(const GroupNode* schema, std::vector<format::SchemaElement>* out); | |
52 | ||
53 | } // namespace schema | |
54 | } // namespace parquet |