47 lines
1.4 KiB
Go
47 lines
1.4 KiB
Go
/*
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Copyright 2024 The Crossplane 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 statemetrics contains utilities for recording Crossplane resource state metrics.
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package statemetrics
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import (
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"context"
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"k8s.io/apimachinery/pkg/runtime/schema"
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)
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const subSystem = "crossplane"
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// A StateRecorder records the state of given GroupVersionKind.
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type StateRecorder interface {
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Record(ctx context.Context, gvk schema.GroupVersionKind)
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Start(ctx context.Context) error
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}
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// A NopStateRecorder does nothing.
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type NopStateRecorder struct{}
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// NewNopStateRecorder returns a NopStateRecorder that does nothing.
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func NewNopStateRecorder() *NopStateRecorder {
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return &NopStateRecorder{}
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}
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// Record does nothing.
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func (r *NopStateRecorder) Record(_ context.Context, _ schema.GroupVersionKind) {}
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// Start does nothing.
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func (r *NopStateRecorder) Start(_ context.Context) error { return nil }
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