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// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package log
import (
"fmt"
)
// EventWriter is the general interface for all event writers
// EventWriterBase is only used as its base interface
// A writer implementation could override the default EventWriterBase functions
// eg: a writer can override the Run to handle events in its own way with its own goroutine
type EventWriter interface {
EventWriterBase
}
// WriterMode is the mode for creating a new EventWriter, it contains common options for all writers
// Its WriterOption field is the specified options for a writer, it should be passed by value but not by pointer
type WriterMode struct {
BufferLen int
Level Level
Prefix string
Colorize bool
Flags Flags
Expression string
StacktraceLevel Level
WriterOption any
}
// EventWriterProvider is the function for creating a new EventWriter
type EventWriterProvider func(writerName string, writerMode WriterMode) EventWriter
var eventWriterProviders = map[string]EventWriterProvider{}
func RegisterEventWriter(writerType string, p EventWriterProvider) {
eventWriterProviders[writerType] = p
}
func HasEventWriter(writerType string) bool {
_, ok := eventWriterProviders[writerType]
return ok
}
func NewEventWriter(name, writerType string, mode WriterMode) (EventWriter, error) {
if p, ok := eventWriterProviders[writerType]; ok {
return p(name, mode), nil
}
return nil, fmt.Errorf("unknown event writer type %q for writer %q", writerType, name)
}
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