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
|
// expression_text.cpp
/**
* Copyright (C) 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/>.
*
* 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 GNU Affero General 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 "mongo/db/matcher/expression_text.h"
#include "mongo/stdx/memory.h"
namespace mongo {
using std::string;
using std::unique_ptr;
using stdx::make_unique;
Status TextMatchExpression::init(const string& query,
const string& language,
bool caseSensitive,
bool diacriticSensitive) {
_query = query;
_language = language;
_caseSensitive = caseSensitive;
_diacriticSensitive = diacriticSensitive;
return initPath("_fts");
}
bool TextMatchExpression::matchesSingleElement(const BSONElement& e) const {
// See ops/update.cpp.
// This node is removed by the query planner. It's only ever called if we're getting an
// elemMatchKey.
return true;
}
void TextMatchExpression::debugString(StringBuilder& debug, int level) const {
_debugAddSpace(debug, level);
debug << "TEXT : query=" << _query << ", language=" << _language
<< ", caseSensitive=" << _caseSensitive << ", diacriticSensitive=" << _diacriticSensitive
<< ", tag=";
MatchExpression::TagData* td = getTag();
if (NULL != td) {
td->debugString(&debug);
} else {
debug << "NULL";
}
debug << "\n";
}
void TextMatchExpression::toBSON(BSONObjBuilder* out) const {
out->append("$text",
BSON("$search" << _query << "$language" << _language << "$caseSensitive"
<< _caseSensitive << "$diacriticSensitive" << _diacriticSensitive));
}
bool TextMatchExpression::equivalent(const MatchExpression* other) const {
if (matchType() != other->matchType()) {
return false;
}
const TextMatchExpression* realOther = static_cast<const TextMatchExpression*>(other);
// TODO This is way too crude. It looks for string equality, but it should be looking for
// common parsed form
if (realOther->getQuery() != _query) {
return false;
}
if (realOther->getLanguage() != _language) {
return false;
}
if (realOther->getCaseSensitive() != _caseSensitive) {
return false;
}
if (realOther->getDiacriticSensitive() != _diacriticSensitive) {
return false;
}
return true;
}
unique_ptr<MatchExpression> TextMatchExpression::shallowClone() const {
unique_ptr<TextMatchExpression> next = make_unique<TextMatchExpression>();
next->init(_query, _language, _caseSensitive, _diacriticSensitive);
if (getTag()) {
next->setTag(getTag()->clone());
}
return std::move(next);
}
}
|