github.com/galamsiva2020/kubernetes-heapster-monitoring@v0.0.0-20210823134957-3c1baa7c1e70/metrics/processors/helper.go (about) 1 // Copyright 2015 Google Inc. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package processors 16 17 import ( 18 "fmt" 19 20 "k8s.io/heapster/metrics/core" 21 ) 22 23 func aggregate(src, dst *core.MetricSet, metricsToAggregate []string) error { 24 for _, metricName := range metricsToAggregate { 25 metricValue, found := src.MetricValues[metricName] 26 if !found { 27 continue 28 } 29 aggregatedValue, found := dst.MetricValues[metricName] 30 if found { 31 if aggregatedValue.ValueType != metricValue.ValueType { 32 return fmt.Errorf("Aggregator: type not supported in %s", metricName) 33 } 34 35 if aggregatedValue.ValueType == core.ValueInt64 { 36 aggregatedValue.IntValue += metricValue.IntValue 37 } else if aggregatedValue.ValueType == core.ValueFloat { 38 aggregatedValue.FloatValue += metricValue.FloatValue 39 } else { 40 return fmt.Errorf("Aggregator: type not supported in %s", metricName) 41 } 42 } else { 43 aggregatedValue = metricValue 44 } 45 dst.MetricValues[metricName] = aggregatedValue 46 } 47 return nil 48 }