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
|
/**
* Copyright 2016 MongoDB 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/repl/update_position_args.h"
#include "mongo/base/status.h"
#include "mongo/bson/util/bson_check.h"
#include "mongo/bson/util/bson_extract.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/repl/bson_extract_optime.h"
namespace mongo {
namespace repl {
const char UpdatePositionArgs::kCommandFieldName[] = "replSetUpdatePosition";
const char UpdatePositionArgs::kUpdateArrayFieldName[] = "optimes";
const char UpdatePositionArgs::kAppliedOpTimeFieldName[] = "appliedOpTime";
const char UpdatePositionArgs::kDurableOpTimeFieldName[] = "durableOpTime";
const char UpdatePositionArgs::kMemberIdFieldName[] = "memberId";
const char UpdatePositionArgs::kConfigVersionFieldName[] = "cfgver";
UpdatePositionArgs::UpdateInfo::UpdateInfo(const OpTime& applied,
const OpTime& durable,
long long aCfgver,
long long aMemberId)
: appliedOpTime(applied), durableOpTime(durable), cfgver(aCfgver), memberId(aMemberId) {}
Status UpdatePositionArgs::initialize(const BSONObj& argsObj) {
// grab the array of changes
BSONElement updateArray;
Status status = bsonExtractTypedField(argsObj, kUpdateArrayFieldName, Array, &updateArray);
if (!status.isOK())
return status;
// now parse each array entry into an update
BSONObjIterator i(updateArray.Obj());
while (i.more()) {
BSONObj entry = i.next().Obj();
OpTime appliedOpTime;
status = bsonExtractOpTimeField(entry, kAppliedOpTimeFieldName, &appliedOpTime);
if (!status.isOK())
return status;
OpTime durableOpTime;
status = bsonExtractOpTimeField(entry, kDurableOpTimeFieldName, &durableOpTime);
if (!status.isOK())
return status;
// TODO(spencer): The following three fields are optional in 3.0, but should be made
// required or ignored in 3.0
long long cfgver;
status = bsonExtractIntegerFieldWithDefault(entry, kConfigVersionFieldName, -1, &cfgver);
if (!status.isOK())
return status;
long long memberID;
status = bsonExtractIntegerFieldWithDefault(entry, kMemberIdFieldName, -1, &memberID);
if (!status.isOK())
return status;
_updates.push_back(UpdateInfo(appliedOpTime, durableOpTime, cfgver, memberID));
}
return Status::OK();
}
BSONObj UpdatePositionArgs::toBSON() const {
BSONObjBuilder builder;
// add command name
builder.append(kCommandFieldName, 1);
// build array of updates
if (!_updates.empty()) {
BSONArrayBuilder updateArray(builder.subarrayStart(kUpdateArrayFieldName));
for (UpdatePositionArgs::UpdateIterator update = updatesBegin(); update != updatesEnd();
++update) {
BSONObjBuilder updateEntry(updateArray.subobjStart());
updateEntry.append(kConfigVersionFieldName, update->cfgver);
updateEntry.append(kMemberIdFieldName, update->memberId);
update->durableOpTime.append(&updateEntry, kDurableOpTimeFieldName);
update->appliedOpTime.append(&updateEntry, kAppliedOpTimeFieldName);
}
updateArray.doneFast();
}
return builder.obj();
}
} // namespace repl
} // namespace mongo
|
