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format_simple.go
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format_simple.go
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package format
import (
"fmt"
"io"
"os"
"sort"
"strings"
"text/tabwriter"
"github.com/prometheus/alertmanager/dispatch"
"github.com/prometheus/alertmanager/types"
)
type SimpleFormatter struct {
writer io.Writer
}
func init() {
Formatters["simple"] = &SimpleFormatter{writer: os.Stdout}
}
func (formatter *SimpleFormatter) SetOutput(writer io.Writer) {
formatter.writer = writer
}
func (formatter *SimpleFormatter) FormatSilences(silences []types.Silence) error {
w := tabwriter.NewWriter(formatter.writer, 0, 0, 2, ' ', 0)
sort.Sort(ByEndAt(silences))
fmt.Fprintln(w, "ID\tMatchers\tEnds At\tCreated By\tComment\t")
for _, silence := range silences {
fmt.Fprintf(
w,
"%s\t%s\t%s\t%s\t%s\t\n",
silence.ID,
simpleFormatMatchers(silence.Matchers),
FormatDate(silence.EndsAt),
silence.CreatedBy,
silence.Comment,
)
}
w.Flush()
return nil
}
func (formatter *SimpleFormatter) FormatAlerts(alerts []*dispatch.APIAlert) error {
w := tabwriter.NewWriter(formatter.writer, 0, 0, 2, ' ', 0)
sort.Sort(ByStartsAt(alerts))
fmt.Fprintln(w, "Alertname\tStarts At\tSummary\t")
for _, alert := range alerts {
fmt.Fprintf(
w,
"%s\t%s\t%s\t\n",
alert.Labels["alertname"],
FormatDate(alert.StartsAt),
alert.Annotations["summary"],
)
}
w.Flush()
return nil
}
func (formatter *SimpleFormatter) FormatConfig(config Config) error {
fmt.Fprintln(formatter.writer, config.ConfigYAML)
return nil
}
func simpleFormatMatchers(matchers types.Matchers) string {
output := []string{}
for _, matcher := range matchers {
output = append(output, simpleFormatMatcher(*matcher))
}
return strings.Join(output, " ")
}
func simpleFormatMatcher(matcher types.Matcher) string {
if matcher.IsRegex {
return fmt.Sprintf("%s=~%s", matcher.Name, matcher.Value)
}
return fmt.Sprintf("%s=%s", matcher.Name, matcher.Value)
}