go.etcd.io/etcd@v3.3.27+incompatible/pkg/logutil/package_logger.go (about) 1 // Copyright 2018 The etcd Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package logutil 16 17 import ( 18 "github.com/coreos/pkg/capnslog" 19 "google.golang.org/grpc/grpclog" 20 ) 21 22 // assert that "packageLogger" satisfy "Logger" interface 23 var _ Logger = &packageLogger{} 24 25 // NewPackageLogger wraps "*capnslog.PackageLogger" that implements "Logger" interface. 26 // 27 // For example: 28 // 29 // var defaultLogger Logger 30 // defaultLogger = NewPackageLogger("github.com/coreos/etcd", "snapshot") 31 // 32 func NewPackageLogger(repo, pkg string) Logger { 33 return &packageLogger{p: capnslog.NewPackageLogger(repo, pkg)} 34 } 35 36 type packageLogger struct { 37 p *capnslog.PackageLogger 38 } 39 40 func (l *packageLogger) Info(args ...interface{}) { l.p.Info(args...) } 41 func (l *packageLogger) Infoln(args ...interface{}) { l.p.Info(args...) } 42 func (l *packageLogger) Infof(format string, args ...interface{}) { l.p.Infof(format, args...) } 43 func (l *packageLogger) Warning(args ...interface{}) { l.p.Warning(args...) } 44 func (l *packageLogger) Warningln(args ...interface{}) { l.p.Warning(args...) } 45 func (l *packageLogger) Warningf(format string, args ...interface{}) { l.p.Warningf(format, args...) } 46 func (l *packageLogger) Error(args ...interface{}) { l.p.Error(args...) } 47 func (l *packageLogger) Errorln(args ...interface{}) { l.p.Error(args...) } 48 func (l *packageLogger) Errorf(format string, args ...interface{}) { l.p.Errorf(format, args...) } 49 func (l *packageLogger) Fatal(args ...interface{}) { l.p.Fatal(args...) } 50 func (l *packageLogger) Fatalln(args ...interface{}) { l.p.Fatal(args...) } 51 func (l *packageLogger) Fatalf(format string, args ...interface{}) { l.p.Fatalf(format, args...) } 52 func (l *packageLogger) V(lvl int) bool { 53 return l.p.LevelAt(capnslog.LogLevel(lvl)) 54 } 55 func (l *packageLogger) Lvl(lvl int) grpclog.LoggerV2 { 56 if l.p.LevelAt(capnslog.LogLevel(lvl)) { 57 return l 58 } 59 return &discardLogger{} 60 }