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gol.go
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gol.go
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//
// Copyright 2015 Rakuten Marketing LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package gol
import (
"io"
)
// LogFilter the interface a log filter needs to implement.
type LogFilter interface {
Filter(*LogMessage) bool
}
// LogFormatter the interface a log message formatter needs to implement.
type LogFormatter interface {
Format(*LogMessage) (string, error)
}
// Logger the interface a log message consumer must implement.
type Logger interface {
Close()
Filter() LogFilter
Formatter() LogFormatter
Run(chan *LogMessage)
Send(*LogMessage) error
SetFilter(LogFilter) error
SetFormatter(LogFormatter) error
SetWriter(io.Writer) error
Status() bool
Writer() io.Writer
}
// LoggerManager the interface to manage an application set of loggers.
type LoggerManager interface {
Close()
Deregister(n string) error
Disable(n string) error
Enable(n string) error
IsEnabled(n string) (bool, error)
List() []string
Register(n string, l Logger) error
Run(chan *LogMessage)
Send(*LogMessage) (err error)
}
// Manager is the instance responsible for handling log messages and sending them to all registered loggers.
var Manager LoggerManager