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  }