1 
2 /**
3  *    Copyright (C) 2018-present MongoDB, Inc.
4  *
5  *    This program is free software: you can redistribute it and/or modify
6  *    it under the terms of the Server Side Public License, version 1,
7  *    as published by MongoDB, Inc.
8  *
9  *    This program is distributed in the hope that it will be useful,
10  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
11  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  *    Server Side Public License for more details.
13  *
14  *    You should have received a copy of the Server Side Public License
15  *    along with this program. If not, see
16  *    <http://www.mongodb.com/licensing/server-side-public-license>.
17  *
18  *    As a special exception, the copyright holders give permission to link the
19  *    code of portions of this program with the OpenSSL library under certain
20  *    conditions as described in each individual source file and distribute
21  *    linked combinations including the program with the OpenSSL library. You
22  *    must comply with the Server Side Public License in all respects for
23  *    all of the code used other than as permitted herein. If you modify file(s)
24  *    with this exception, you may extend this exception to your version of the
25  *    file(s), but you are not obligated to do so. If you do not wish to do so,
26  *    delete this exception statement from your version. If you delete this
27  *    exception statement from all source files in the program, then also delete
28  *    it in the license file.
29  */
30 
31 #pragma once
32 
33 #include <string>
34 #include <vector>
35 
36 #include "mongo/db/hasher.h"
37 #include "mongo/db/jsobj.h"
38 
39 namespace mongo {
40 
41 class CollatorInterface;
42 struct TwoDIndexingParams;
43 struct S2IndexingParams;
44 
45 namespace ExpressionParams {
46 
47 void parseTwoDParams(const BSONObj& infoObj, TwoDIndexingParams* out);
48 
49 void parseHashParams(const BSONObj& infoObj,
50                      HashSeed* seedOut,
51                      int* versionOut,
52                      std::string* fieldOut);
53 
54 void parseHaystackParams(const BSONObj& infoObj,
55                          std::string* geoFieldOut,
56                          std::vector<std::string>* otherFieldsOut,
57                          double* bucketSizeOut);
58 
59 void initialize2dsphereParams(const BSONObj& infoObj,
60                               const CollatorInterface* collator,
61                               S2IndexingParams* out);
62 
63 }  // namespace ExpressionParams
64 
65 }  // namespace mongo
66