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
|
//@file update.cpp
/**
* Copyright (C) 2008-2014 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.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kWrite
#include "mongo/platform/basic.h"
#include "mongo/db/ops/update.h"
#include "mongo/client/dbclientinterface.h"
#include "mongo/db/catalog/collection.h"
#include "mongo/db/catalog/database.h"
#include "mongo/db/catalog/database_holder.h"
#include "mongo/db/clientcursor.h"
#include "mongo/db/concurrency/d_concurrency.h"
#include "mongo/db/concurrency/write_conflict_exception.h"
#include "mongo/db/exec/update.h"
#include "mongo/db/operation_context_impl.h"
#include "mongo/db/op_observer.h"
#include "mongo/db/ops/update_driver.h"
#include "mongo/db/ops/update_lifecycle.h"
#include "mongo/db/query/explain.h"
#include "mongo/db/query/get_executor.h"
#include "mongo/db/repl/replication_coordinator_global.h"
#include "mongo/db/update_index_data.h"
#include "mongo/util/log.h"
namespace mongo {
UpdateResult update(OperationContext* txn,
Database* db,
const UpdateRequest& request,
OpDebug* opDebug) {
invariant(db);
// Explain should never use this helper.
invariant(!request.isExplain());
const NamespaceString& nsString = request.getNamespaceString();
Collection* collection = db->getCollection(nsString.ns());
// The update stage does not create its own collection. As such, if the update is
// an upsert, create the collection that the update stage inserts into beforehand.
if (!collection && request.isUpsert()) {
// We have to have an exclusive lock on the db to be allowed to create the collection.
// Callers should either get an X or create the collection.
const Locker* locker = txn->lockState();
invariant(locker->isW() ||
locker->isLockHeldForMode(ResourceId(RESOURCE_DATABASE, nsString.db()),
MODE_X));
MONGO_WRITE_CONFLICT_RETRY_LOOP_BEGIN {
ScopedTransaction transaction(txn, MODE_IX);
Lock::DBLock lk(txn->lockState(), nsString.db(), MODE_X);
const bool userInitiatedWritesAndNotPrimary = txn->writesAreReplicated() &&
!repl::getGlobalReplicationCoordinator()->canAcceptWritesFor(nsString);
if (userInitiatedWritesAndNotPrimary) {
uassertStatusOK(Status(ErrorCodes::NotMaster, str::stream()
<< "Not primary while creating collection " << nsString.ns()
<< " during upsert"));
}
WriteUnitOfWork wuow(txn);
collection = db->createCollection(txn, nsString.ns(), CollectionOptions());
invariant(collection);
wuow.commit();
} MONGO_WRITE_CONFLICT_RETRY_LOOP_END(txn, "createCollection", nsString.ns());
}
// Parse the update, get an executor for it, run the executor, get stats out.
ParsedUpdate parsedUpdate(txn, &request);
uassertStatusOK(parsedUpdate.parseRequest());
PlanExecutor* rawExec;
uassertStatusOK(getExecutorUpdate(txn, collection, &parsedUpdate, opDebug, &rawExec));
std::unique_ptr<PlanExecutor> exec(rawExec);
uassertStatusOK(exec->executePlan());
return UpdateStage::makeUpdateResult(exec.get(), opDebug);
}
BSONObj applyUpdateOperators(const BSONObj& from, const BSONObj& operators) {
UpdateDriver::Options opts;
UpdateDriver driver(opts);
Status status = driver.parse(operators);
if (!status.isOK()) {
uasserted(16838, status.reason());
}
mutablebson::Document doc(from, mutablebson::Document::kInPlaceDisabled);
status = driver.update(StringData(), &doc);
if (!status.isOK()) {
uasserted(16839, status.reason());
}
return doc.getObject();
}
} // namespace mongo
|
