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  }