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
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/**
* 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.
*/
#pragma once
#include "mongo/db/client.h"
#include "mongo/db/exec/shard_filterer.h"
#include "mongo/db/ops/write_ops_gen.h"
#include "mongo/db/pipeline/pipeline.h"
#include "mongo/db/pipeline/process_interface/common_mongod_process_interface.h"
namespace mongo {
/**
* Class to provide access to mongod-specific implementations of methods required by some
* document sources.
*/
class NonShardServerProcessInterface : public CommonMongodProcessInterface {
public:
bool isSharded(OperationContext* opCtx, const NamespaceString& nss) final {
return false;
}
std::list<BSONObj> getIndexSpecs(OperationContext* opCtx,
const NamespaceString& ns,
bool includeBuildUUIDs) override;
std::unique_ptr<Pipeline, PipelineDeleter> attachCursorSourceToPipeline(
Pipeline* pipeline,
ShardTargetingPolicy shardTargetingPolicy = ShardTargetingPolicy::kAllowed,
boost::optional<BSONObj> readConcern = boost::none) override;
BSONObj preparePipelineAndExplain(Pipeline* ownedPipeline, ExplainOptions::Verbosity verbosity);
std::unique_ptr<ShardFilterer> getShardFilterer(
const boost::intrusive_ptr<ExpressionContext>& expCtx) const override {
// We'll never do shard filtering on a standalone.
return nullptr;
}
boost::optional<ChunkVersion> refreshAndGetCollectionVersion(
const boost::intrusive_ptr<ExpressionContext>& expCtx,
const NamespaceString& nss) const final {
return boost::none; // Nothing is sharded here.
}
virtual void checkRoutingInfoEpochOrThrow(const boost::intrusive_ptr<ExpressionContext>& expCtx,
const NamespaceString& nss,
ChunkVersion targetCollectionVersion) const override {
uasserted(51020, "unexpected request to consult sharding catalog on non-shardsvr");
}
std::vector<FieldPath> collectDocumentKeyFieldsActingAsRouter(
OperationContext*, const NamespaceString&) const final;
boost::optional<Document> lookupSingleDocument(
const boost::intrusive_ptr<ExpressionContext>& expCtx,
const NamespaceString& nss,
UUID collectionUUID,
const Document& documentKey,
boost::optional<BSONObj> readConcern) final;
Status insert(const boost::intrusive_ptr<ExpressionContext>& expCtx,
const NamespaceString& ns,
std::vector<BSONObj>&& objs,
const WriteConcernOptions& wc,
boost::optional<OID> targetEpoch) override;
StatusWith<UpdateResult> update(const boost::intrusive_ptr<ExpressionContext>& expCtx,
const NamespaceString& ns,
BatchedObjects&& batch,
const WriteConcernOptions& wc,
UpsertType upsert,
bool multi,
boost::optional<OID> targetEpoch) override;
void renameIfOptionsAndIndexesHaveNotChanged(
OperationContext* opCtx,
const BSONObj& renameCommandObj,
const NamespaceString& targetNs,
const BSONObj& originalCollectionOptions,
const std::list<BSONObj>& originalIndexes) override;
void createCollection(OperationContext* opCtx,
const std::string& dbName,
const BSONObj& cmdObj) override;
void dropCollection(OperationContext* opCtx, const NamespaceString& collection) override;
void createIndexesOnEmptyCollection(OperationContext* opCtx,
const NamespaceString& ns,
const std::vector<BSONObj>& indexSpecs) override;
std::unique_ptr<ScopedExpectUnshardedCollection> expectUnshardedCollectionInScope(
OperationContext* opCtx,
const NamespaceString& nss,
const boost::optional<DatabaseVersion>& dbVersion) override {
class ScopedExpectUnshardedCollectionNoop : public ScopedExpectUnshardedCollection {
public:
ScopedExpectUnshardedCollectionNoop() = default;
};
return std::make_unique<ScopedExpectUnshardedCollectionNoop>();
}
void checkOnPrimaryShardForDb(OperationContext* opCtx, const NamespaceString& nss) override {
// Do nothing on a non-shardsvr mongoD.
}
protected:
// This constructor is marked as protected in order to prevent instantiation since this
// interface is designed to have a concrete process interface for each possible
// configuration of a mongod.
NonShardServerProcessInterface(std::shared_ptr<executor::TaskExecutor> exec)
: CommonMongodProcessInterface(std::move(exec)) {}
};
} // namespace mongo
|
