101 lines
3.3 KiB
Go
101 lines
3.3 KiB
Go
// Copyright 2016 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 clientv3
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import (
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"io/ioutil"
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"sync"
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"go.etcd.io/etcd/pkg/logutil"
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"google.golang.org/grpc/grpclog"
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)
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var (
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lgMu sync.RWMutex
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lg logutil.Logger
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)
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type settableLogger struct {
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l grpclog.LoggerV2
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mu sync.RWMutex
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}
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func init() {
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// disable client side logs by default
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lg = &settableLogger{}
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SetLogger(grpclog.NewLoggerV2(ioutil.Discard, ioutil.Discard, ioutil.Discard))
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}
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// SetLogger sets client-side Logger.
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func SetLogger(l grpclog.LoggerV2) {
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lgMu.Lock()
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lg = logutil.NewLogger(l)
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// override grpclog so that any changes happen with locking
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grpclog.SetLoggerV2(lg)
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lgMu.Unlock()
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}
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// GetLogger returns the current logutil.Logger.
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func GetLogger() logutil.Logger {
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lgMu.RLock()
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l := lg
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lgMu.RUnlock()
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return l
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}
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// NewLogger returns a new Logger with logutil.Logger.
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func NewLogger(gl grpclog.LoggerV2) logutil.Logger {
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return &settableLogger{l: gl}
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}
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func (s *settableLogger) get() grpclog.LoggerV2 {
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s.mu.RLock()
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l := s.l
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s.mu.RUnlock()
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return l
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}
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// implement the grpclog.LoggerV2 interface
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func (s *settableLogger) Info(args ...interface{}) { s.get().Info(args...) }
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func (s *settableLogger) Infof(format string, args ...interface{}) { s.get().Infof(format, args...) }
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func (s *settableLogger) Infoln(args ...interface{}) { s.get().Infoln(args...) }
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func (s *settableLogger) Warning(args ...interface{}) { s.get().Warning(args...) }
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func (s *settableLogger) Warningf(format string, args ...interface{}) {
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s.get().Warningf(format, args...)
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}
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func (s *settableLogger) Warningln(args ...interface{}) { s.get().Warningln(args...) }
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func (s *settableLogger) Error(args ...interface{}) { s.get().Error(args...) }
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func (s *settableLogger) Errorf(format string, args ...interface{}) {
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s.get().Errorf(format, args...)
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}
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func (s *settableLogger) Errorln(args ...interface{}) { s.get().Errorln(args...) }
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func (s *settableLogger) Fatal(args ...interface{}) { s.get().Fatal(args...) }
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func (s *settableLogger) Fatalf(format string, args ...interface{}) { s.get().Fatalf(format, args...) }
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func (s *settableLogger) Fatalln(args ...interface{}) { s.get().Fatalln(args...) }
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func (s *settableLogger) Print(args ...interface{}) { s.get().Info(args...) }
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func (s *settableLogger) Printf(format string, args ...interface{}) { s.get().Infof(format, args...) }
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func (s *settableLogger) Println(args ...interface{}) { s.get().Infoln(args...) }
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func (s *settableLogger) V(l int) bool { return s.get().V(l) }
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func (s *settableLogger) Lvl(lvl int) grpclog.LoggerV2 {
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s.mu.RLock()
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l := s.l
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s.mu.RUnlock()
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if l.V(lvl) {
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return s
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}
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return logutil.NewDiscardLogger()
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}
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