syslog.go

// +build !windows

/*
 * Copyright (C) 2018 Red Hat, Inc.
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 logging

import (
	"log/syslog"

	"github.com/tchap/zapext/zapsyslog"
	"go.uber.org/zap"
	"go.uber.org/zap/zapcore"
)

type syslogBackend struct {
	w *syslog.Writer
}

func (b *syslogBackend) Core(msgPriority zap.LevelEnablerFunc, encoder zapcore.Encoder) zapcore.Core {
	return zapsyslog.NewCore(msgPriority, encoder, b.w)
}

// NewSyslogBackend returns a new backend that outputs to syslog
func NewSyslogBackend(tag string) (Backend, error) {
	w, err := syslog.New(syslog.LOG_CRIT, tag)
	if err != nil {
		return nil, err
	}
	return &syslogBackend{w: w}, nil
}