github.com/galamsiva2020/kubernetes-heapster-monitoring@v0.0.0-20210823134957-3c1baa7c1e70/metrics/processors/cluster_aggregator.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 "k8s.io/heapster/metrics/core" 18 19 type ClusterAggregator struct { 20 MetricsToAggregate []string 21 } 22 23 func (this *ClusterAggregator) Name() string { 24 return "cluster_aggregator" 25 } 26 27 func (this *ClusterAggregator) Process(batch *core.DataBatch) (*core.DataBatch, error) { 28 clusterKey := core.ClusterKey() 29 cluster := clusterMetricSet() 30 for _, metricSet := range batch.MetricSets { 31 if metricSetType, found := metricSet.Labels[core.LabelMetricSetType.Key]; found && 32 metricSetType == core.MetricSetTypeNamespace { 33 if err := aggregate(metricSet, cluster, this.MetricsToAggregate); err != nil { 34 return nil, err 35 } 36 } 37 } 38 batch.MetricSets[clusterKey] = cluster 39 return batch, nil 40 } 41 42 func clusterMetricSet() *core.MetricSet { 43 return &core.MetricSet{ 44 MetricValues: make(map[string]core.MetricValue), 45 Labels: map[string]string{ 46 core.LabelMetricSetType.Key: core.MetricSetTypeCluster, 47 }, 48 } 49 }