mirror of
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84 lines
2.2 KiB
Go
84 lines
2.2 KiB
Go
// Copyright 2017 Pilosa Corp.
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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 pilosa
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import (
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"io"
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"log"
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)
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// Ensure nopLogger implements interface.
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var _ Logger = &nopLogger{}
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// Logger represents an interface for a shared logger.
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type Logger interface {
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Printf(format string, v ...interface{})
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Debugf(format string, v ...interface{})
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}
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// NopLogger represents a Logger that doesn't do anything.
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var NopLogger Logger = &nopLogger{}
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type nopLogger struct{}
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// Printf is a no-op implementation of the Logger Printf method.
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func (n *nopLogger) Printf(format string, v ...interface{}) {}
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// Debugf is a no-op implementation of the Logger Debugf method.
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func (n *nopLogger) Debugf(format string, v ...interface{}) {}
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// standardLogger is a basic implementation of pilosa.Logger based on log.Logger.
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type standardLogger struct {
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logger *log.Logger
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}
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func NewStandardLogger(w io.Writer) *standardLogger {
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return &standardLogger{
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logger: log.New(w, "", log.LstdFlags),
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}
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}
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func (s *standardLogger) Printf(format string, v ...interface{}) {
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s.logger.Printf(format, v...)
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}
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func (s *standardLogger) Debugf(format string, v ...interface{}) {}
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func (s *standardLogger) Logger() *log.Logger {
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return s.logger
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}
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// verboseLogger is an implementation of pilosa.Logger which includes debug messages.
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type verboseLogger struct {
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logger *log.Logger
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}
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func NewVerboseLogger(w io.Writer) *verboseLogger {
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return &verboseLogger{
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logger: log.New(w, "", log.LstdFlags),
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}
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}
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func (vb *verboseLogger) Printf(format string, v ...interface{}) {
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vb.logger.Printf(format, v...)
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}
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func (vb *verboseLogger) Debugf(format string, v ...interface{}) {
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vb.logger.Printf(format, v...)
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}
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func (vb *verboseLogger) Logger() *log.Logger {
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return vb.logger
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}
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