This repository has been archived by the owner on May 13, 2022. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 346
/
burrow_format_logger.go
68 lines (60 loc) · 2.06 KB
/
burrow_format_logger.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
// Copyright 2017 Monax Industries Limited
//
// 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 loggers
import (
"fmt"
"time"
"sync"
"github.com/go-kit/kit/log"
"github.com/hyperledger/burrow/logging/structure"
"github.com/tmthrgd/go-hex"
)
// Logger that implements some formatting conventions for burrow and burrow-client
// This is intended for applying consistent value formatting before the final 'output' logger;
// we should avoid prematurely formatting values here if it is useful to let the output logger
// decide how it wants to display values. Ideal candidates for 'early' formatting here are types that
// we control and generic output loggers are unlikely to know about.
type burrowFormatLogger struct {
sync.Mutex
logger log.Logger
}
var _ log.Logger = &burrowFormatLogger{}
func (bfl *burrowFormatLogger) Log(keyvals ...interface{}) error {
if bfl.logger == nil {
return nil
}
if len(keyvals)%2 != 0 {
return fmt.Errorf("log line contains an odd number of elements so "+
"was dropped: %v", keyvals)
}
keyvals = structure.MapKeyValues(keyvals,
func(key interface{}, value interface{}) (interface{}, interface{}) {
switch v := value.(type) {
case string:
case fmt.Stringer:
value = v.String()
case []byte:
value = hex.EncodeUpperToString(v)
case time.Time:
value = v.Format(time.RFC3339Nano)
}
return structure.StringifyKey(key), value
})
bfl.Lock()
defer bfl.Unlock()
return bfl.logger.Log(keyvals...)
}
func BurrowFormatLogger(logger log.Logger) *burrowFormatLogger {
return &burrowFormatLogger{logger: logger}
}