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89 lines
2.2 KiB
89 lines
2.2 KiB
// Copyright 2015 The Prometheus Authors |
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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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// +build windows |
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package log |
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import ( |
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"fmt" |
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"os" |
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"golang.org/x/sys/windows/svc/eventlog" |
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"github.com/Sirupsen/logrus" |
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) |
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func init() { |
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setEventlogFormatter = func(name string, debugAsInfo bool) error { |
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if name == "" { |
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return fmt.Errorf("missing name parameter") |
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} |
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fmter, err := newEventlogger(name, debugAsInfo, origLogger.Formatter) |
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if err != nil { |
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fmt.Fprintf(os.Stderr, "error creating eventlog formatter: %v\n", err) |
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origLogger.Errorf("can't connect logger to eventlog: %v", err) |
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return err |
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} |
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origLogger.Formatter = fmter |
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return nil |
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} |
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} |
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type eventlogger struct { |
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log *eventlog.Log |
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debugAsInfo bool |
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wrap logrus.Formatter |
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} |
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func newEventlogger(name string, debugAsInfo bool, fmter logrus.Formatter) (*eventlogger, error) { |
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logHandle, err := eventlog.Open(name) |
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if err != nil { |
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return nil, err |
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} |
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return &eventlogger{log: logHandle, debugAsInfo: debugAsInfo, wrap: fmter}, nil |
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} |
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func (s *eventlogger) Format(e *logrus.Entry) ([]byte, error) { |
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data, err := s.wrap.Format(e) |
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if err != nil { |
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fmt.Fprintf(os.Stderr, "eventlogger: can't format entry: %v\n", err) |
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return data, err |
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} |
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switch e.Level { |
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case logrus.PanicLevel: |
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fallthrough |
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case logrus.FatalLevel: |
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fallthrough |
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case logrus.ErrorLevel: |
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err = s.log.Error(102, e.Message) |
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case logrus.WarnLevel: |
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err = s.log.Warning(101, e.Message) |
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case logrus.InfoLevel: |
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err = s.log.Info(100, e.Message) |
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case logrus.DebugLevel: |
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if s.debugAsInfo { |
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err = s.log.Info(100, e.Message) |
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} |
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default: |
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err = s.log.Info(100, e.Message) |
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} |
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if err != nil { |
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fmt.Fprintf(os.Stderr, "eventlogger: can't send log to eventlog: %v\n", err) |
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} |
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return data, err |
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}
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