-
Notifications
You must be signed in to change notification settings - Fork 374
/
msg_drop.go
99 lines (82 loc) · 3.16 KB
/
msg_drop.go
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
// Copyright 2021 FerretDB Inc.
//
// 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
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package sqlite
import (
"context"
"fmt"
"github.com/FerretDB/FerretDB/internal/backends"
"github.com/FerretDB/FerretDB/internal/handlers/common"
"github.com/FerretDB/FerretDB/internal/handlers/commonerrors"
"github.com/FerretDB/FerretDB/internal/types"
"github.com/FerretDB/FerretDB/internal/util/lazyerrors"
"github.com/FerretDB/FerretDB/internal/util/must"
"github.com/FerretDB/FerretDB/internal/wire"
)
// MsgDrop implements HandlerInterface.
func (h *Handler) MsgDrop(ctx context.Context, msg *wire.OpMsg) (*wire.OpMsg, error) {
document, err := msg.Document()
if err != nil {
return nil, lazyerrors.Error(err)
}
common.Ignored(document, h.L, "writeConcern", "comment")
command := document.Command()
dbName, err := common.GetRequiredParam[string](document, "$db")
if err != nil {
return nil, err
}
collectionName, err := common.GetRequiredParam[string](document, command)
if err != nil {
return nil, err
}
// Most backends would block on `DropCollection` below otherwise.
//
// There is a race condition: another client could create a new cursor for that collection
// after we closed all of them, but before we drop the collection itself.
// In that case, we expect the client to wait or to retry the operation.
for _, c := range h.cursors.All() {
if c.DB == dbName && c.Collection == collectionName {
c.Close()
}
}
db, err := h.b.Database(dbName)
if err != nil {
if backends.ErrorCodeIs(err, backends.ErrorCodeDatabaseNameIsInvalid) {
msg := fmt.Sprintf("Invalid namespace specified '%s'", dbName)
return nil, commonerrors.NewCommandErrorMsgWithArgument(commonerrors.ErrInvalidNamespace, msg, "drop")
}
return nil, lazyerrors.Error(err)
}
err = db.DropCollection(ctx, &backends.DropCollectionParams{
Name: collectionName,
})
switch {
case err == nil:
var reply wire.OpMsg
must.NoError(reply.SetSections(wire.OpMsgSection{
Documents: []*types.Document{must.NotFail(types.NewDocument(
"nIndexesWas", int32(1), // TODO https://github.com/FerretDB/FerretDB/issues/2337
"ns", dbName+"."+collectionName,
"ok", float64(1),
))},
}))
return &reply, nil
case backends.ErrorCodeIs(err, backends.ErrorCodeCollectionNameIsInvalid):
msg := fmt.Sprintf("Invalid collection name: %s", collectionName)
return nil, commonerrors.NewCommandErrorMsgWithArgument(commonerrors.ErrInvalidNamespace, msg, "drop")
case backends.ErrorCodeIs(err, backends.ErrorCodeCollectionDoesNotExist):
return nil, commonerrors.NewCommandErrorMsgWithArgument(commonerrors.ErrNamespaceNotFound, "ns not found", "drop")
default:
return nil, lazyerrors.Error(err)
}
}