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// Copyright 2015 CoreOS, Inc.
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//
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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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//
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// +build !windows
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package capnslog
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import (
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"errors"
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"fmt"
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"os"
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"path/filepath"
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"github.com/coreos/go-systemd/journal"
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)
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func NewJournaldFormatter() (Formatter, error) {
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if !journal.Enabled() {
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return nil, errors.New("No systemd detected")
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}
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return &journaldFormatter{}, nil
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}
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type journaldFormatter struct{}
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func (j *journaldFormatter) Format(pkg string, l LogLevel, _ int, entries ...interface{}) {
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var pri journal.Priority
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switch l {
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case CRITICAL:
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pri = journal.PriCrit
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case ERROR:
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pri = journal.PriErr
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case WARNING:
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pri = journal.PriWarning
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case NOTICE:
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pri = journal.PriNotice
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case INFO:
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pri = journal.PriInfo
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case DEBUG:
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pri = journal.PriDebug
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case TRACE:
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pri = journal.PriDebug
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default:
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panic("Unhandled loglevel")
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}
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msg := fmt.Sprint(entries...)
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tags := map[string]string{
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"PACKAGE": pkg,
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"SYSLOG_IDENTIFIER": filepath.Base(os.Args[0]),
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}
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err := journal.Send(msg, pri, tags)
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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}
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}
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func (j *journaldFormatter) Flush() {}
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