github.com/kubewharf/katalyst-core@v0.5.3/pkg/metaserver/agent/metric/metric_expire.go (about) 1 /* 2 Copyright 2022 The Katalyst Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package metric 18 19 import ( 20 "errors" 21 "time" 22 23 utilmetric "github.com/kubewharf/katalyst-core/pkg/util/metric" 24 ) 25 26 const ( 27 minimumMetricInsurancePeriod = 60 * time.Second 28 ) 29 30 var errMetricDataExpired = errors.New("metric data expired") 31 32 func IsMetricDataExpired(err error) bool { 33 return errors.Is(err, errMetricDataExpired) 34 } 35 36 type CheckMetricDataExpireFunc func(utilmetric.MetricData, error) (utilmetric.MetricData, error) 37 38 func checkMetricDataExpireFunc(metricsInsurancePeriod time.Duration) CheckMetricDataExpireFunc { 39 if metricsInsurancePeriod == 0 { 40 return func(metricData utilmetric.MetricData, err error) (utilmetric.MetricData, error) { 41 return metricData, err 42 } 43 } 44 45 if metricsInsurancePeriod < minimumMetricInsurancePeriod { 46 metricsInsurancePeriod = minimumMetricInsurancePeriod 47 } 48 49 return func(metricData utilmetric.MetricData, err error) (utilmetric.MetricData, error) { 50 if err != nil { 51 return metricData, err 52 } 53 54 if metricData.Time == nil || metricData.Time.IsZero() || metricData.Time.Unix() == 0 { 55 return metricData, nil 56 } 57 58 expireAt := time.Now().Add(-metricsInsurancePeriod) 59 if metricData.Time.Before(expireAt) { 60 return metricData, errMetricDataExpired 61 } 62 63 return metricData, nil 64 } 65 }