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
|
/**
* 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/base/status.h"
#include "mongo/bson/bsonelement.h"
#include "mongo/bson/bsonobj.h"
#include "mongo/db/catalog/collection_options.h"
#include "mongo/util/uuid.h"
namespace mongo {
class NamespaceString;
class OperationContext;
namespace repl {
class OpTime;
} // namespace repl
/**
* Renames the collection from "source" to "target" and drops the existing collection if
* "dropTarget" is true. "stayTemp" indicates whether a collection should maintain its
* temporariness.
*/
struct RenameCollectionOptions {
bool dropTarget = false;
bool stayTemp = false;
bool markFromMigrate = false;
boost::optional<UUID> expectedSourceUUID;
boost::optional<UUID> expectedTargetUUID;
};
void doLocalRenameIfOptionsAndIndexesHaveNotChanged(OperationContext* opCtx,
const NamespaceString& sourceNs,
const NamespaceString& targetNs,
const RenameCollectionOptions& options,
std::list<BSONObj> originalIndexes,
BSONObj collectionOptions);
Status renameCollection(OperationContext* opCtx,
const NamespaceString& source,
const NamespaceString& target,
const RenameCollectionOptions& options);
/**
* As above, but may only be called from applyCommand_inlock. This allows creating a collection
* with a specific UUID for cross-database renames.
*
* When 'cmd' contains dropTarget=true, 'renameOpTime' is used to rename the target collection to a
* drop-pending collection.
*/
Status renameCollectionForApplyOps(OperationContext* opCtx,
const boost::optional<UUID>& uuidToRename,
const boost::optional<TenantId>& tid,
const BSONObj& cmd,
const repl::OpTime& renameOpTime);
/**
* Same as renameCollection(), but used for rolling back renameCollection operations only.
*
* 'uuid' is used to look up the source namespace.
* The 'target' namespace must refer to the same database as the source.
*/
Status renameCollectionForRollback(OperationContext* opCtx,
const NamespaceString& target,
const UUID& uuid);
/**
* Performs validation checks to ensure source and target namespaces are eligible for rename.
*/
void validateNamespacesForRenameCollection(
OperationContext* opCtx,
const NamespaceString& source,
const NamespaceString& target,
const RenameCollectionOptions& options = RenameCollectionOptions());
/**
* Runs renameCollection() with preliminary validation checks to ensure source
* and target namespaces are eligible for rename.
*/
void validateAndRunRenameCollection(OperationContext* opCtx,
const NamespaceString& source,
const NamespaceString& target,
const RenameCollectionOptions& options);
} // namespace mongo
|
