github.com/kubewharf/katalyst-core@v0.5.3/pkg/custom-metric/collector/collect.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 collector is the package that collects metric data
    18  // from katalyst agents (current implement is a pulling model),
    19  // and it's responsible to push those data to data stores.
    20  package collector
    21  
    22  // MetricCollector is a standard metric collector interface
    23  type MetricCollector interface {
    24  	Name() string
    25  
    26  	// Start and Stop are both blocked functions
    27  	Start() error
    28  	Stop() error
    29  }
    30  
    31  type DummyMetricCollector struct{}
    32  
    33  var _ MetricCollector = DummyMetricCollector{}
    34  
    35  func (d DummyMetricCollector) Name() string { return "dummy-collector" }
    36  func (d DummyMetricCollector) Start() error { return nil }
    37  func (d DummyMetricCollector) Stop() error  { return nil }