mirror of
https://github.com/openziti/ziti.git
synced 2026-10-12 07:18:36 +00:00
Paul Lorenz
131 lines
3.5 KiB
Go
131 lines
3.5 KiB
Go
/*
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Copyright NetFoundry Inc.
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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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https://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package events
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import (
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"fmt"
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"github.com/natefinch/lumberjack"
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"github.com/pkg/errors"
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"io"
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"os"
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"strings"
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)
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type fabricFormatterFactory struct{}
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func (f fabricFormatterFactory) NewLoggingHandler(format string, buffer int, out io.WriteCloser) (interface{}, error) {
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if strings.EqualFold(format, "json") {
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return NewJsonFormatter(buffer, NewWriterEventSink(out)), nil
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}
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return nil, errors.Errorf("invalid 'format' for event log output file: %v", format)
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}
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type StdOutLoggerFactory struct{}
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func (StdOutLoggerFactory) NewEventHandler(config map[interface{}]interface{}) (interface{}, error) {
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return NewFileEventLogger(fabricFormatterFactory{}, true, config)
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}
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type FileEventLoggerFactory struct{}
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func (FileEventLoggerFactory) NewEventHandler(config map[interface{}]interface{}) (interface{}, error) {
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return NewFileEventLogger(fabricFormatterFactory{}, false, config)
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}
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func NewFileEventLogger(formatterFactory LoggingHandlerFactory, stdout bool, config map[interface{}]interface{}) (interface{}, error) {
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// allow config to increase the buffer size
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bufferSize := 10
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if value, found := config["bufferSize"]; found {
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if size, ok := value.(int); ok {
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bufferSize = size
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}
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}
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var output io.WriteCloser = os.Stdout
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if !stdout {
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// allow config to override the max file size
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maxsize := 10
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if value, found := config["maxsizemb"]; found {
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if maxsizemb, ok := value.(int); ok {
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maxsize = maxsizemb
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}
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}
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// allow config to override the max file size
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maxBackupFiles := 0
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if value, found := config["maxbackups"]; found {
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if maxbackups, ok := value.(int); ok {
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maxBackupFiles = maxbackups
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}
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}
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// set the path or die if not specified
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filepath := ""
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if value, found := config["path"]; found {
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if testpath, ok := value.(string); ok {
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f, err := os.OpenFile(testpath, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0664)
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if err != nil {
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return nil, fmt.Errorf("cannot write to log file path: %s", testpath)
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} else {
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filepath = testpath
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_ = f.Close()
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}
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} else {
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return nil, errors.New("invalid event FileLogger 'path' value")
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}
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} else {
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return nil, errors.New("missing required 'path' config for events FileLogger handler")
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}
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output = &newlineWriter{
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out: &lumberjack.Logger{
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Filename: filepath,
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MaxSize: maxsize,
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MaxBackups: maxBackupFiles,
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},
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}
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}
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if value, found := config["format"]; found {
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if format, ok := value.(string); ok {
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return formatterFactory.NewLoggingHandler(format, bufferSize, output)
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}
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return nil, errors.New("invalid 'format' for event log output file")
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}
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return nil, errors.New("'format' must be specified for event handler")
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}
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type newlineWriter struct {
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out io.WriteCloser
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}
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func (self newlineWriter) Close() error {
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return self.out.Close()
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}
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func (self newlineWriter) Write(p []byte) (int, error) {
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n, err := self.out.Write(p)
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if err != nil {
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return n, err
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}
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m, err := self.out.Write([]byte("\n"))
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return n + m, err
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}
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