67 lines
2 KiB
Go
67 lines
2 KiB
Go
package main
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import (
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"context"
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"strconv"
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"github.com/hansmi/paperhooks/pkg/client"
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"github.com/prometheus/client_golang/prometheus"
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)
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type correspondentClient interface {
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ListAllCorrespondents(context.Context, client.ListCorrespondentsOptions, func(context.Context, client.Correspondent) error) error
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}
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type correspondentCollector struct {
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cl correspondentClient
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infoDesc *prometheus.Desc
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docCountDesc *prometheus.Desc
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lastCorrespondenceDesc *prometheus.Desc
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}
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func newCorrespondentCollector(cl correspondentClient) *correspondentCollector {
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return &correspondentCollector{
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cl: cl,
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infoDesc: prometheus.NewDesc("paperless_correspondent_info",
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"Static information about a correspondent.",
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[]string{"id", "name", "slug"}, nil),
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docCountDesc: prometheus.NewDesc("paperless_correspondent_document_count",
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"Number of documents associated with a correspondent.",
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[]string{"id"}, nil),
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lastCorrespondenceDesc: prometheus.NewDesc("paperless_correspondent_last_correspondence_timestamp_seconds",
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"Number of seconds since 1970 of the most recent correspondence.",
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[]string{"id"}, nil),
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}
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}
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func (c *correspondentCollector) describe(ch chan<- *prometheus.Desc) {
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ch <- c.infoDesc
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ch <- c.docCountDesc
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ch <- c.lastCorrespondenceDesc
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}
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func (c *correspondentCollector) collect(ctx context.Context, ch chan<- prometheus.Metric) error {
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var opts client.ListCorrespondentsOptions
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opts.Ordering.Field = "name"
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return c.cl.ListAllCorrespondents(ctx, opts, func(_ context.Context, correspondent client.Correspondent) error {
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id := strconv.FormatInt(correspondent.ID, 10)
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ch <- prometheus.MustNewConstMetric(c.infoDesc, prometheus.GaugeValue, 1,
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id,
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correspondent.Name,
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correspondent.Slug,
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)
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ch <- prometheus.MustNewConstMetric(c.docCountDesc, prometheus.GaugeValue,
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float64(correspondent.DocumentCount), id)
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ch <- prometheus.MustNewConstMetric(c.lastCorrespondenceDesc, prometheus.GaugeValue,
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optionalTimestamp(correspondent.LastCorrespondence), id)
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return nil
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})
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}
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