forked from influxdata/influxdb
/
continuous_query_writer.go
55 lines (47 loc) · 1.08 KB
/
continuous_query_writer.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
package coordinator
// This implements the SeriesWriter interface for use with continuous
// queries to write their output back into the db
import (
"github.com/influxdb/influxdb/engine"
"github.com/influxdb/influxdb/parser"
"github.com/influxdb/influxdb/protocol"
)
type ContinuousQueryWriter struct {
c *Coordinator
query *parser.SelectQuery
db, target string
}
func NewContinuousQueryWriter(
c *Coordinator,
db, target string,
query *parser.SelectQuery,
) *ContinuousQueryWriter {
return &ContinuousQueryWriter{
c: c,
query: query,
db: db,
target: target,
}
}
func (self *ContinuousQueryWriter) Yield(series *protocol.Series) (bool, error) {
err := self.c.InterpolateValuesAndCommit(
self.query.GetQueryString(),
self.db,
series,
self.target,
true,
)
if err != nil {
return false, err
}
return true, nil
}
func (self *ContinuousQueryWriter) Close() error {
return nil
}
func (self *ContinuousQueryWriter) Name() string {
return "ContinuousQueryWriter"
}
func (self *ContinuousQueryWriter) Next() engine.Processor {
return nil
}