-
Notifications
You must be signed in to change notification settings - Fork 74
/
InfluxDB.go
123 lines (111 loc) · 3.79 KB
/
InfluxDB.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
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
// Copyright 2015-2018 trivago N.V.
//
// 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 (
"github.com/trivago/gollum/core"
"io"
"sync"
)
// InfluxDB producer
//
// This producer writes data to an influxDB endpoint. Data is not converted to
// the correct influxDB format automatically. Proper formatting might be
// required.
//
// Parameters
//
// - Version: Defines the InfluxDB protocol version to use. This can either be
// 80-89 for 0.8.x, 90 for 0.9.0 or 91-100 for 0.9.1 or later.
// Be default this parameter is set to 100.
//
// - Host: Defines the host (and port) of the InfluxDB master.
// Be default this parameter is set to "localhost:8086".
//
// - User: Defines the InfluxDB username to use. If this is empty,
// credentials are not used.
// Be default this parameter is set to "".
//
// - Password: Defines the InfluxDB password to use.
// Be default this parameter is set to "".
//
// - Database: Sets the InfluxDB database to write to.
// Be default this parameter is set to "default".
//
// - TimeBasedName: When set to true, the Database parameter is treated as a
// template for time.Format and the resulting string is used as the database
// name. You can e.g. use "default-2006-01-02" to switch databases each day.
// By default this parameter is set to "true".
//
// - RetentionPolicy: Only available for Version 90. This setting defines the
// InfluxDB retention policy allowed with this protocol version.
// By default this parameter is set to "".
//
// Examples
//
// metricsToInflux:
// Type: producer.InfluxDB
// Streams: metrics
// Host: "influx01:8086"
// Database: "metrics"
// TimeBasedName: false
// Batch:
// MaxCount: 2000
// FlushCount: 100
// TimeoutSec: 5
type InfluxDB struct {
core.BatchedProducer `gollumdoc:"embed_type"`
writer influxDBWriter
assembly core.WriterAssembly
}
type influxDBWriter interface {
io.Writer
configure(core.PluginConfigReader, *InfluxDB) error
isConnectionUp() bool
}
func init() {
core.TypeRegistry.Register(InfluxDB{})
}
// Configure initializes this producer with values from a plugin config.
func (prod *InfluxDB) Configure(conf core.PluginConfigReader) {
version := conf.GetInt("Version", 100)
switch {
case version < 90:
prod.Logger.Debug("Using InfluxDB 0.8.x protocol")
prod.writer = new(influxDBWriter08)
case version == 90:
prod.Logger.Debug("Using InfluxDB 0.9.0 protocol")
prod.writer = new(influxDBWriter09)
default:
prod.Logger.Debug("Using InfluxDB 1.0.0 protocol")
prod.writer = new(influxDBWriter10)
}
if err := prod.writer.configure(conf, prod); conf.Errors.Push(err) {
return
}
prod.assembly = core.NewWriterAssembly(prod.writer, prod.TryFallback, prod)
}
// sendBatch returns core.AssemblyFunc to flush batch
func (prod *InfluxDB) sendBatch() core.AssemblyFunc {
if prod.writer.isConnectionUp() {
return prod.assembly.Write
} else if prod.IsStopping() {
return prod.assembly.Flush
}
return nil
}
// Produce starts a bulk producer which will collect datapoints until either the buffer is full or a timeout has been reached.
// The buffer limit does not describe the number of messages received from kafka but the size of the buffer content in KB.
func (prod *InfluxDB) Produce(workers *sync.WaitGroup) {
prod.BatchMessageLoop(workers, prod.sendBatch)
}