1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include <vector>
#include "mongo/db/auth/action_set.h"
#include "mongo/db/auth/action_type.h"
#include "mongo/db/auth/privilege.h"
#include "mongo/db/catalog/collection.h"
#include "mongo/db/catalog/database.h"
#include "mongo/db/catalog/index_catalog.h"
#include "mongo/db/commands.h"
#include "mongo/db/curop.h"
#include "mongo/db/db_raii.h"
#include "mongo/db/index/haystack_access_method.h"
#include "mongo/db/index/index_access_method.h"
#include "mongo/db/index/index_descriptor.h"
#include "mongo/db/index_names.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/namespace_string.h"
#include "mongo/db/query/find_common.h"
/**
* Examines all documents in a given radius of a given point.
* Returns all documents that match a given search restriction.
* See http://dochub.mongodb.org/core/haystackindexes
*
* Use when you want to look for restaurants within 25 miles with a certain name.
* Don't use when you want to find the closest open restaurants.
*/
namespace mongo {
using std::string;
using std::vector;
class GeoHaystackSearchCommand : public ErrmsgCommandDeprecated {
public:
GeoHaystackSearchCommand() : ErrmsgCommandDeprecated("geoSearch") {}
virtual bool supportsWriteConcern(const BSONObj& cmd) const override {
return false;
}
AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
return AllowedOnSecondary::kAlways;
}
ReadConcernSupportResult supportsReadConcern(const std::string& dbName,
const BSONObj& cmdObj,
repl::ReadConcernLevel level) const final {
return ReadConcernSupportResult::allSupportedAndDefaultPermitted();
}
ReadWriteType getReadWriteType() const {
return ReadWriteType::kRead;
}
std::size_t reserveBytesForReply() const override {
return FindCommon::kInitReplyBufferSize;
}
virtual void addRequiredPrivileges(const std::string& dbname,
const BSONObj& cmdObj,
std::vector<Privilege>* out) const {
ActionSet actions;
actions.addAction(ActionType::find);
out->push_back(Privilege(parseResourcePattern(dbname, cmdObj), actions));
}
bool errmsgRun(OperationContext* opCtx,
const string& dbname,
const BSONObj& cmdObj,
string& errmsg,
BSONObjBuilder& result) {
const NamespaceString nss = CommandHelpers::parseNsCollectionRequired(dbname, cmdObj);
AutoGetCollectionForReadCommand ctx(opCtx, nss);
// Check whether we are allowed to read from this node after acquiring our locks.
auto replCoord = repl::ReplicationCoordinator::get(opCtx);
uassertStatusOK(replCoord->checkCanServeReadsFor(
opCtx, nss, ReadPreferenceSetting::get(opCtx).canRunOnSecondary()));
Collection* collection = ctx.getCollection();
if (!collection) {
errmsg = "can't find ns";
return false;
}
vector<const IndexDescriptor*> idxs;
collection->getIndexCatalog()->findIndexByType(opCtx, IndexNames::GEO_HAYSTACK, idxs);
if (idxs.size() == 0) {
errmsg = "no geoSearch index";
return false;
}
if (idxs.size() > 1) {
errmsg = "more than 1 geosearch index";
return false;
}
BSONElement nearElt = cmdObj["near"];
BSONElement maxDistance = cmdObj["maxDistance"];
BSONElement search = cmdObj["search"];
uassert(13318, "near needs to be an array", nearElt.isABSONObj());
uassert(13319, "maxDistance needs a number", maxDistance.isNumber());
uassert(13320, "search needs to be an object", search.type() == Object);
unsigned limit = 50;
if (cmdObj["limit"].isNumber())
limit = static_cast<unsigned>(cmdObj["limit"].numberInt());
const IndexDescriptor* desc = idxs[0];
auto ham = static_cast<const HaystackAccessMethod*>(
collection->getIndexCatalog()->getEntry(desc)->accessMethod());
ham->searchCommand(opCtx,
collection,
nearElt.Obj(),
maxDistance.numberDouble(),
search.Obj(),
&result,
limit);
return 1;
}
} nameSearchCommand;
} // namespace mongo
|
