forked from open-telemetry/opentelemetry-collector-contrib
-
Notifications
You must be signed in to change notification settings - Fork 0
/
scraper.go
85 lines (72 loc) · 2.74 KB
/
scraper.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
// Copyright The OpenTelemetry Authors
//
// 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
//
// https://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 couchdbreceiver // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/couchdbreceiver"
import (
"context"
"errors"
"fmt"
"time"
"go.opentelemetry.io/collector/component"
"go.opentelemetry.io/collector/pdata/pcommon"
"go.opentelemetry.io/collector/pdata/pmetric"
"go.opentelemetry.io/collector/receiver/scrapererror"
"go.uber.org/zap"
"github.com/open-telemetry/opentelemetry-collector-contrib/receiver/couchdbreceiver/internal/metadata"
)
type couchdbScraper struct {
client client
config *Config
settings component.TelemetrySettings
mb *metadata.MetricsBuilder
}
func newCouchdbScraper(settings component.ReceiverCreateSettings, config *Config) *couchdbScraper {
return &couchdbScraper{
settings: settings.TelemetrySettings,
config: config,
mb: metadata.NewMetricsBuilder(config.Metrics, settings.BuildInfo),
}
}
func (c *couchdbScraper) start(_ context.Context, host component.Host) error {
httpClient, err := newCouchDBClient(c.config, host, c.settings)
if err != nil {
return fmt.Errorf("failed to start: %w", err)
}
c.client = httpClient
return nil
}
func (c *couchdbScraper) scrape(context.Context) (pmetric.Metrics, error) {
if c.client == nil {
return pmetric.NewMetrics(), errors.New("no client available")
}
localNode := "_local"
stats, err := c.client.GetStats(localNode)
if err != nil {
c.settings.Logger.Error("Failed to fetch couchdb stats",
zap.String("endpoint", c.config.Endpoint),
zap.Error(err),
)
return pmetric.NewMetrics(), err
}
now := pcommon.NewTimestampFromTime(time.Now())
errs := &scrapererror.ScrapeErrors{}
c.recordCouchdbAverageRequestTimeDataPoint(now, stats, errs)
c.recordCouchdbHttpdBulkRequestsDataPoint(now, stats, errs)
c.recordCouchdbHttpdRequestsDataPoint(now, stats, errs)
c.recordCouchdbHttpdResponsesDataPoint(now, stats, errs)
c.recordCouchdbHttpdViewsDataPoint(now, stats, errs)
c.recordCouchdbDatabaseOpenDataPoint(now, stats, errs)
c.recordCouchdbFileDescriptorOpenDataPoint(now, stats, errs)
c.recordCouchdbDatabaseOperationsDataPoint(now, stats, errs)
return c.mb.Emit(metadata.WithCouchdbNodeName(c.config.Endpoint)), errs.Combine()
}