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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
// Copyright (C) MongoDB, Inc. 2017-present.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
package unified
import (
"context"
"fmt"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/bson/bsontype"
"go.mongodb.org/mongo-driver/mongo/options"
)
// This file contains helpers to execute database operations.
func executeCreateCollection(ctx context.Context, operation *operation) (*operationResult, error) {
db, err := entities(ctx).database(operation.Object)
if err != nil {
return nil, err
}
var collName string
var cco options.CreateCollectionOptions
elems, _ := operation.Arguments.Elements()
for _, elem := range elems {
key := elem.Key()
val := elem.Value()
switch key {
case "collection":
collName = val.StringValue()
case "expireAfterSeconds":
cco.SetExpireAfterSeconds(int64(val.Int32()))
case "timeseries":
tsElems, err := elem.Value().Document().Elements()
if err != nil {
return nil, err
}
tso := options.TimeSeries()
for _, elem := range tsElems {
key := elem.Key()
val := elem.Value()
switch key {
case "timeField":
tso.SetTimeField(val.StringValue())
case "metaField":
tso.SetMetaField(val.StringValue())
case "granularity":
tso.SetGranularity(val.StringValue())
default:
return nil, fmt.Errorf("unrecognized timeseries option %q", key)
}
}
cco.SetTimeSeriesOptions(tso)
default:
return nil, fmt.Errorf("unrecognized createCollection option %q", key)
}
}
if collName == "" {
return nil, newMissingArgumentError("collName")
}
err = db.CreateCollection(ctx, collName, &cco)
return newErrorResult(err), nil
}
func executeDropCollection(ctx context.Context, operation *operation) (*operationResult, error) {
db, err := entities(ctx).database(operation.Object)
if err != nil {
return nil, err
}
var collName string
elems, _ := operation.Arguments.Elements()
for _, elem := range elems {
key := elem.Key()
val := elem.Value()
switch key {
case "collection":
collName = val.StringValue()
default:
return nil, fmt.Errorf("unrecognized dropCollection option %q", key)
}
}
if collName == "" {
return nil, newMissingArgumentError("collection")
}
err = db.Collection(collName).Drop(ctx)
return newErrorResult(err), nil
}
func executeListCollections(ctx context.Context, operation *operation) (*operationResult, error) {
db, err := entities(ctx).database(operation.Object)
if err != nil {
return nil, err
}
listCollArgs, err := createListCollectionsArguments(operation.Arguments)
if err != nil {
return nil, err
}
cursor, err := db.ListCollections(ctx, listCollArgs.filter, listCollArgs.opts)
if err != nil {
return newErrorResult(err), nil
}
defer cursor.Close(ctx)
var docs []bson.Raw
if err := cursor.All(ctx, &docs); err != nil {
return newErrorResult(err), nil
}
return newCursorResult(docs), nil
}
func executeListCollectionNames(ctx context.Context, operation *operation) (*operationResult, error) {
db, err := entities(ctx).database(operation.Object)
if err != nil {
return nil, err
}
listCollArgs, err := createListCollectionsArguments(operation.Arguments)
if err != nil {
return nil, err
}
names, err := db.ListCollectionNames(ctx, listCollArgs.filter, listCollArgs.opts)
if err != nil {
return newErrorResult(err), nil
}
_, data, err := bson.MarshalValue(names)
if err != nil {
return nil, fmt.Errorf("error converting collection names slice to BSON: %v", err)
}
return newValueResult(bsontype.Array, data, nil), nil
}
func executeRunCommand(ctx context.Context, operation *operation) (*operationResult, error) {
db, err := entities(ctx).database(operation.Object)
if err != nil {
return nil, err
}
var command bson.Raw
opts := options.RunCmd()
elems, _ := operation.Arguments.Elements()
for _, elem := range elems {
key := elem.Key()
val := elem.Value()
switch key {
case "command":
command = val.Document()
case "commandName":
// This is only necessary for languages that cannot preserve key order in the command document, so we can
// ignore it.
case "readConcern":
// GODRIVER-1774: We currently don't support overriding read concern for RunCommand.
return nil, fmt.Errorf("readConcern in runCommand not supported")
case "readPreference":
var temp ReadPreference
if err := bson.Unmarshal(val.Document(), &temp); err != nil {
return nil, fmt.Errorf("error unmarshalling readPreference option: %v", err)
}
rp, err := temp.ToReadPrefOption()
if err != nil {
return nil, fmt.Errorf("error creating readpref.ReadPref object: %v", err)
}
opts.SetReadPreference(rp)
case "writeConcern":
// GODRIVER-1774: We currently don't support overriding write concern for RunCommand.
return nil, fmt.Errorf("writeConcern in runCommand not supported")
default:
return nil, fmt.Errorf("unrecognized runCommand option %q", key)
}
}
if command == nil {
return nil, newMissingArgumentError("command")
}
res, err := db.RunCommand(ctx, command, opts).DecodeBytes()
return newDocumentResult(res, err), nil
}
|
