64 lines
2.6 KiB
Go
64 lines
2.6 KiB
Go
// Copyright 2018 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package logutil
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import "google.golang.org/grpc/grpclog"
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// Logger defines logging interface.
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// TODO: deprecate in v3.5.
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type Logger interface {
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grpclog.LoggerV2
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// Lvl returns logger if logger's verbosity level >= "lvl".
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// Otherwise, logger that discards everything.
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Lvl(lvl int) grpclog.LoggerV2
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}
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// assert that "defaultLogger" satisfy "Logger" interface
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var _ Logger = &defaultLogger{}
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// NewLogger wraps "grpclog.LoggerV2" that implements "Logger" interface.
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//
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// For example:
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//
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// var defaultLogger Logger
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// g := grpclog.NewLoggerV2WithVerbosity(os.Stderr, os.Stderr, os.Stderr, 4)
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// defaultLogger = NewLogger(g)
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//
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func NewLogger(g grpclog.LoggerV2) Logger { return &defaultLogger{g: g} }
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type defaultLogger struct {
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g grpclog.LoggerV2
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}
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func (l *defaultLogger) Info(args ...interface{}) { l.g.Info(args...) }
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func (l *defaultLogger) Infoln(args ...interface{}) { l.g.Info(args...) }
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func (l *defaultLogger) Infof(format string, args ...interface{}) { l.g.Infof(format, args...) }
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func (l *defaultLogger) Warning(args ...interface{}) { l.g.Warning(args...) }
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func (l *defaultLogger) Warningln(args ...interface{}) { l.g.Warning(args...) }
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func (l *defaultLogger) Warningf(format string, args ...interface{}) { l.g.Warningf(format, args...) }
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func (l *defaultLogger) Error(args ...interface{}) { l.g.Error(args...) }
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func (l *defaultLogger) Errorln(args ...interface{}) { l.g.Error(args...) }
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func (l *defaultLogger) Errorf(format string, args ...interface{}) { l.g.Errorf(format, args...) }
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func (l *defaultLogger) Fatal(args ...interface{}) { l.g.Fatal(args...) }
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func (l *defaultLogger) Fatalln(args ...interface{}) { l.g.Fatal(args...) }
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func (l *defaultLogger) Fatalf(format string, args ...interface{}) { l.g.Fatalf(format, args...) }
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func (l *defaultLogger) V(lvl int) bool { return l.g.V(lvl) }
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func (l *defaultLogger) Lvl(lvl int) grpclog.LoggerV2 {
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if l.g.V(lvl) {
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return l
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}
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return &discardLogger{}
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}
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