forked from sanultari/gollum
/
console.go
81 lines (69 loc) · 1.99 KB
/
console.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
// Copyright 2015-2016 trivago GmbH
//
// 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 producer
import (
"fmt"
"github.com/trivago/gollum/core"
"github.com/trivago/gollum/shared"
"os"
"strings"
"sync"
)
// Console producer plugin
// The console producer writes messages to the standard output streams.
// This producer does not implement a fuse breaker.
// Configuration example
//
// - "producer.Console":
// Console: "stdout"
//
// Console may either be "stdout" or "stderr". By default it is set to "stdout".
type Console struct {
core.ProducerBase
console *os.File
}
func init() {
shared.TypeRegistry.Register(Console{})
}
// Configure initializes this producer with values from a plugin config.
func (prod *Console) Configure(conf core.PluginConfig) error {
err := prod.ProducerBase.Configure(conf)
if err != nil {
return err
}
prod.SetStopCallback(prod.close)
console := conf.GetString("Console", "stdout")
switch strings.ToLower(console) {
default:
fallthrough
case "stdout":
prod.console = os.Stdout
case "stderr":
prod.console = os.Stderr
}
return nil
}
func (prod *Console) printMessage(msg core.Message) {
text, _ := prod.ProducerBase.Format(msg)
fmt.Fprint(prod.console, string(text))
}
func (prod *Console) close() {
prod.CloseMessageChannel(prod.printMessage)
}
// Produce writes to stdout or stderr.
func (prod *Console) Produce(workers *sync.WaitGroup) {
defer prod.WorkerDone()
prod.AddMainWorker(workers)
prod.MessageControlLoop(prod.printMessage)
}