forked from projectcalico/felix
-
Notifications
You must be signed in to change notification settings - Fork 0
/
msgstringer.go
57 lines (52 loc) · 1.87 KB
/
msgstringer.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
// Copyright (c) 2016-2017 Tigera, Inc. All rights reserved.
//
// 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 proto
import (
"fmt"
log "github.com/sirupsen/logrus"
)
// msgStringer wraps an API message to customise how we stringify it. For example, it truncates
// the lists of members in the (potentially very large) IPSetsUpdate messages.
type MsgStringer struct {
Msg interface{}
}
func (m MsgStringer) String() string {
if log.GetLevel() < log.DebugLevel && m.Msg != nil {
const truncateAt = 10
switch msg := m.Msg.(type) {
case *IPSetUpdate:
if len(msg.Members) < truncateAt {
return fmt.Sprintf("%v", msg)
}
return fmt.Sprintf("id:%#v members(%d):%#v(truncated)",
msg.Id, len(msg.Members), msg.Members[:truncateAt])
case *IPSetDeltaUpdate:
if len(msg.AddedMembers) < truncateAt && len(msg.RemovedMembers) < truncateAt {
return fmt.Sprintf("%v", msg)
}
addedNum := truncateAt
removedNum := truncateAt
if len(msg.AddedMembers) < addedNum {
addedNum = len(msg.AddedMembers)
}
if len(msg.RemovedMembers) < removedNum {
removedNum = len(msg.RemovedMembers)
}
return fmt.Sprintf("id:%#v addedMembers(%d):%#v(truncated) removedMembers(%d):%#v(truncated)",
msg.Id, len(msg.AddedMembers), msg.AddedMembers[:addedNum],
len(msg.RemovedMembers), msg.RemovedMembers[:removedNum])
}
}
return fmt.Sprintf("%v", m.Msg)
}