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15a6681651
Kill LevelDB watermarks due to redundancy. General interface documentation has begun. Creating custom types for the model to prevent errors down the road. Renaming of components for easier comprehension. Exposition of interface in LevelDB. Slew of simple refactorings.
129 lines
3.0 KiB
Go
129 lines
3.0 KiB
Go
// Copyright 2012 Prometheus Team
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package model
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import (
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"code.google.com/p/goprotobuf/proto"
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"crypto/md5"
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"encoding/hex"
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data "github.com/matttproud/prometheus/model/generated"
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"io"
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"sort"
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)
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func SampleToMetricDTO(s *Sample) *data.Metric {
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labelLength := len(s.Labels)
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labelNames := make([]string, 0, labelLength)
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for labelName := range s.Labels {
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labelNames = append(labelNames, string(labelName))
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}
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sort.Strings(labelNames)
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labelSets := make([]*data.LabelPair, 0, labelLength)
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for _, labelName := range labelNames {
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labelValue := s.Labels[LabelName(labelName)]
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labelPair := &data.LabelPair{
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Name: proto.String(string(labelName)),
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Value: proto.String(string(labelValue)),
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}
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labelSets = append(labelSets, labelPair)
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}
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return &data.Metric{
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LabelPair: labelSets,
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}
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}
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func MetricToDTO(m *Metric) *data.Metric {
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metricLength := len(*m)
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labelNames := make([]string, 0, metricLength)
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for labelName := range *m {
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labelNames = append(labelNames, string(labelName))
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}
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sort.Strings(labelNames)
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labelSets := make([]*data.LabelPair, 0, metricLength)
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for _, labelName := range labelNames {
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l := LabelName(labelName)
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labelValue := (*m)[l]
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labelPair := &data.LabelPair{
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Name: proto.String(string(labelName)),
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Value: proto.String(string(labelValue)),
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}
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labelSets = append(labelSets, labelPair)
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}
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return &data.Metric{
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LabelPair: labelSets,
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}
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}
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func StringToFingerprint(v string) Fingerprint {
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hash := md5.New()
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io.WriteString(hash, v)
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return Fingerprint(hex.EncodeToString(hash.Sum([]byte{})))
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}
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func BytesToFingerprint(v []byte) Fingerprint {
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hash := md5.New()
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hash.Write(v)
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return Fingerprint(hex.EncodeToString(hash.Sum([]byte{})))
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}
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func LabelSetToDTOs(s *LabelSet) []*data.LabelPair {
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metricLength := len(*s)
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labelNames := make([]string, 0, metricLength)
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for labelName := range *s {
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labelNames = append(labelNames, string(labelName))
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}
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sort.Strings(labelNames)
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labelSets := make([]*data.LabelPair, 0, metricLength)
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for _, labelName := range labelNames {
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l := LabelName(labelName)
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labelValue := (*s)[l]
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labelPair := &data.LabelPair{
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Name: proto.String(string(labelName)),
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Value: proto.String(string(labelValue)),
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}
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labelSets = append(labelSets, labelPair)
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}
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return labelSets
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}
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func LabelSetToDTO(s *LabelSet) *data.LabelSet {
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return &data.LabelSet{
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Member: LabelSetToDTOs(s),
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}
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}
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func LabelNameToDTO(l *LabelName) *data.LabelName {
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return &data.LabelName{
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Name: proto.String(string(*l)),
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}
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}
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