forked from kubewharf/katalyst-core
58 lines
2.1 KiB
Go
58 lines
2.1 KiB
Go
/*
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Copyright 2022 The Katalyst Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package metrics_pool
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import (
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"context"
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"github.com/kubewharf/katalyst-core/pkg/metrics"
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)
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// MetricsEmitterPool is a metrics emitter pool for metrics emitter.
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// it stores all the emitter implementations, and provide a getter
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// function to acquire them. this thought is much like the thread pool.
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type MetricsEmitterPool interface {
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// GetDefaultMetricsEmitter returns the default metrics.MetricEmitter
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// that should be handled by this mux; while SetDefaultMetricsEmitter
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// provides a way to set the default metrics.MetricEmitter
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GetDefaultMetricsEmitter() metrics.MetricEmitter
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SetDefaultMetricsEmitter(metricEmitter metrics.MetricEmitter)
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// GetMetricsEmitter returns the specific metrics.MetricEmitter.
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// the parameters are used for certain pool implementation to parse request info.
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// we will always try to get emitter from local cache, and creating one if not exist.
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GetMetricsEmitter(parameters interface{}) (metrics.MetricEmitter, error)
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// Run starts the syncing logic of emitter pool implementations
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Run(ctx context.Context)
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}
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type DummyMetricsEmitterPool struct{}
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var _ MetricsEmitterPool = DummyMetricsEmitterPool{}
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func (d DummyMetricsEmitterPool) GetDefaultMetricsEmitter() metrics.MetricEmitter {
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return metrics.DummyMetrics{}
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}
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func (d DummyMetricsEmitterPool) SetDefaultMetricsEmitter(_ metrics.MetricEmitter) {}
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func (d DummyMetricsEmitterPool) GetMetricsEmitter(_ interface{}) (metrics.MetricEmitter, error) {
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return metrics.DummyMetrics{}, nil
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}
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func (d DummyMetricsEmitterPool) Run(_ context.Context) {}
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