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
|
/**
* Copyright (C) 2008-2013 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#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/index/catalog_hack.h"
#include "mongo/db/index/haystack_access_method.h"
#include "mongo/db/index/index_descriptor.h"
#include "mongo/db/index/index_access_method.h"
#include "mongo/db/index_names.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/index.h"
#include "mongo/db/commands.h"
#include "mongo/db/pdfile.h"
#include "mongo/db/btreecursor.h"
#include "mongo/db/curop-inl.h"
#include "mongo/db/matcher.h"
#include "mongo/db/geo/core.h"
#include "mongo/db/geo/hash.h"
#include "mongo/db/geo/shapes.h"
#include "mongo/util/timer.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 {
class GeoHaystackSearchCommand : public Command {
public:
GeoHaystackSearchCommand() : Command("geoSearch") {}
virtual LockType locktype() const { return READ; }
bool slaveOk() const { return true; }
bool slaveOverrideOk() const { return true; }
virtual void addRequiredPrivileges(const std::string& dbname,
const BSONObj& cmdObj,
std::vector<Privilege>* out) {
ActionSet actions;
actions.addAction(ActionType::find);
out->push_back(Privilege(parseNs(dbname, cmdObj), actions));
}
bool run(const string& dbname, BSONObj& cmdObj, int,
string& errmsg, BSONObjBuilder& result, bool fromRepl) {
string ns = dbname + "." + cmdObj.firstElement().valuestr();
NamespaceDetails *nsd = nsdetails(ns);
if (NULL == nsd) {
errmsg = "can't find ns";
return false;
}
vector<int> idxs;
nsd->findIndexByType(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());
int idxNum = idxs[0];
auto_ptr<IndexDescriptor> desc(CatalogHack::getDescriptor(nsd, idxNum));
auto_ptr<HaystackAccessMethod> ham(new HaystackAccessMethod(desc.get()));
ham->searchCommand(nearElt.Obj(), maxDistance.numberDouble(), search.Obj(),
&result, limit);
return 1;
}
} nameSearchCommand;
} // namespace mongo
|
