57 lines
2.2 KiB
Go
57 lines
2.2 KiB
Go
// Copyright (c) 2016 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package log
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import "log"
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// Logger provides an abstract interface for logging from Reporters.
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// Applications can provide their own implementation of this interface to adapt
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// reporters logging to whatever logging library they prefer (stdlib log,
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// logrus, go-logging, etc).
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type Logger interface {
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// Error logs a message at error priority
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Error(msg string)
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// Infof logs a message at info priority
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Infof(msg string, args ...interface{})
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}
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// StdLogger is implementation of the Logger interface that delegates to default `log` package
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var StdLogger = &stdLogger{}
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type stdLogger struct{}
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func (l *stdLogger) Error(msg string) {
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log.Printf("ERROR: %s", msg)
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}
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// Infof logs a message at info priority
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func (l *stdLogger) Infof(msg string, args ...interface{}) {
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log.Printf(msg, args...)
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}
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// NullLogger is implementation of the Logger interface that delegates to default `log` package
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var NullLogger = &nullLogger{}
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type nullLogger struct{}
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func (l *nullLogger) Error(msg string) {}
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func (l *nullLogger) Infof(msg string, args ...interface{}) {}
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