41 lines
1.1 KiB
Go
41 lines
1.1 KiB
Go
package metrics
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import (
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"fmt"
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"strings"
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"github.com/influxdata/influxdb-client-go/v2/api/write"
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)
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// convertPointToLineProtocol transforms a given data point into the format that InfluxDB uses for dumps.
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//
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// See https://docs.influxdata.com/influxdb/v2.0/reference/syntax/line-protocol/
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func convertPointToLineProtocol(point *write.Point) string {
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// Collect tags
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var tags string
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for _, t := range point.TagList() {
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tags += fmt.Sprintf(",%s=%s", t.Key, t.Value)
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}
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// Collect fields
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if len(point.FieldList()) == 0 {
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panic("expected at least one point in metric")
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}
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var tmp []string
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for _, f := range point.FieldList() {
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switch f.Value.(type) {
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case string:
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tmp = append(tmp, fmt.Sprintf("%s=\"%v\"", f.Key, f.Value))
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case uint64, uint32, uint16, uint8:
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tmp = append(tmp, fmt.Sprintf("%s=%vu", f.Key, f.Value))
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default:
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tmp = append(tmp, fmt.Sprintf("%s=%v", f.Key, f.Value))
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}
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}
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fields := strings.Join(tmp, ",")
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// Build a line for the dump file
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return fmt.Sprintf("%s%s %s %d\n", point.Name(), tags, fields, point.Time().UnixNano())
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}
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