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89 lines
2.9 KiB
Go
89 lines
2.9 KiB
Go
// The MIT License
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//
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// Copyright (c) 2020 Temporal Technologies Inc. All rights reserved.
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//
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// Copyright (c) 2020 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 (
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"fmt"
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golog "log"
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"os"
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"strings"
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"go.temporal.io/sdk/log"
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)
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// DefaultLogger is Logger implementation on top of standard log.Logger. It is used if logger is not specified.
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type DefaultLogger struct {
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logger *golog.Logger
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globalKeyvals string
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}
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// NewDefaultLogger creates new instance of DefaultLogger.
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func NewDefaultLogger() *DefaultLogger {
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return &DefaultLogger{logger: golog.New(os.Stdout, "", golog.LstdFlags)}
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}
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func (l *DefaultLogger) println(level, msg string, keyvals []interface{}) {
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// To avoid extra space when globalKeyvals is not specified.
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if l.globalKeyvals == "" {
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l.logger.Println(append([]interface{}{level, msg}, keyvals...)...)
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} else {
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l.logger.Println(append([]interface{}{level, msg, l.globalKeyvals}, keyvals...)...)
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}
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}
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// Debug writes message to the log.
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func (l *DefaultLogger) Debug(msg string, keyvals ...interface{}) {
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l.println("DEBUG", msg, keyvals)
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}
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// Info writes message to the log.
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func (l *DefaultLogger) Info(msg string, keyvals ...interface{}) {
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l.println("INFO ", msg, keyvals)
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}
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// Warn writes message to the log.
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func (l *DefaultLogger) Warn(msg string, keyvals ...interface{}) {
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l.println("WARN ", msg, keyvals)
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}
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// Error writes message to the log.
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func (l *DefaultLogger) Error(msg string, keyvals ...interface{}) {
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l.println("ERROR", msg, keyvals)
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}
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// With returns new logger the prepend every log entry with keyvals.
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func (l *DefaultLogger) With(keyvals ...interface{}) log.Logger {
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logger := &DefaultLogger{
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logger: l.logger,
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}
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if l.globalKeyvals != "" {
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logger.globalKeyvals = l.globalKeyvals + " "
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}
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logger.globalKeyvals += strings.TrimSuffix(fmt.Sprintln(keyvals...), "\n")
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return logger
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}
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