/
converter.go
67 lines (59 loc) · 1.92 KB
/
converter.go
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// Copyright (c) 2019 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package storage
import (
"github.com/m3db/m3/src/query/graphite/graphite"
"github.com/m3db/m3/src/query/models"
)
const (
wildcard = "*"
)
func convertMetricPartToMatcher(
count int,
metric string,
) (models.Matcher, error) {
var matchType models.MatchType
if metric == wildcard {
return models.Matcher{
Type: models.MatchField,
Name: graphite.TagName(count),
}, nil
}
value, isRegex, err := graphite.GlobToRegexPattern(metric)
if err != nil {
return models.Matcher{}, err
}
if isRegex {
matchType = models.MatchRegexp
} else {
matchType = models.MatchEqual
}
return models.Matcher{
Type: matchType,
Name: graphite.TagName(count),
Value: value,
}, nil
}
func matcherTerminator(count int) models.Matcher {
return models.Matcher{
Type: models.MatchNotField,
Name: graphite.TagName(count),
}
}