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log_null.go
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log_null.go
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// Copyright (c) 2019-2021, F5 Networks, Inc.
//
// 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.
// log_null.go:
//
// Turns off all logging.
package vlogger
import "log/syslog"
type (
nullLogger struct {
slLogLevel syslog.Priority
}
)
// newNullLogger creates a logger object that drops all log messages.
func newNullLogger() *nullLogger {
return &nullLogger{
slLogLevel: syslog.LOG_DEBUG,
}
}
func init() {
// Keeps the global interface from starting out with an
// undefined implementation.
RegisterLogger(LL_MIN_LEVEL, LL_MAX_LEVEL, newNullLogger())
}
func (cl *nullLogger) Debug(msg string) {}
func (cl *nullLogger) Debugf(format string, params ...interface{}) {}
func (cl *nullLogger) Info(msg string) {}
func (cl *nullLogger) Infof(format string, params ...interface{}) {}
func (cl *nullLogger) Warning(msg string) {}
func (cl *nullLogger) Warningf(format string, params ...interface{}) {}
func (cl *nullLogger) Error(msg string) {}
func (cl *nullLogger) Errorf(format string, params ...interface{}) {}
func (cl *nullLogger) Critical(msg string) {}
func (cl *nullLogger) Criticalf(format string, params ...interface{}) {}
func (cl *nullLogger) Close() {}
func (cl *nullLogger) SetLogLevel(slLogLevel syslog.Priority) {
cl.slLogLevel = slLogLevel
}
func (cl *nullLogger) GetLogLevel() syslog.Priority {
return cl.slLogLevel
}