/
matchers.go
39 lines (33 loc) · 979 Bytes
/
matchers.go
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package store
import (
"github.com/improbable-eng/thanos/pkg/store/storepb"
"github.com/pkg/errors"
"github.com/prometheus/tsdb/labels"
)
func translateMatcher(m storepb.LabelMatcher) (labels.Matcher, error) {
switch m.Type {
case storepb.LabelMatcher_EQ:
return labels.NewEqualMatcher(m.Name, m.Value), nil
case storepb.LabelMatcher_NEQ:
return labels.Not(labels.NewEqualMatcher(m.Name, m.Value)), nil
case storepb.LabelMatcher_RE:
return labels.NewRegexpMatcher(m.Name, "^(?:"+m.Value+")$")
case storepb.LabelMatcher_NRE:
m, err := labels.NewRegexpMatcher(m.Name, "^(?:"+m.Value+")$")
if err != nil {
return nil, err
}
return labels.Not(m), nil
}
return nil, errors.Errorf("unknown label matcher type %d", m.Type)
}
func translateMatchers(ms []storepb.LabelMatcher) (res []labels.Matcher, err error) {
for _, m := range ms {
r, err := translateMatcher(m)
if err != nil {
return nil, err
}
res = append(res, r)
}
return res, nil
}