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8f4c7ece92
The use of naked return values is frowned upon. This is the first of two bulk updates to remove them.
35 lines
1.4 KiB
Go
35 lines
1.4 KiB
Go
// Copyright 2013 Prometheus Team
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package rules
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import (
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"github.com/prometheus/prometheus/rules/ast"
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"github.com/prometheus/prometheus/storage/metric"
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"time"
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)
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// A Rule encapsulates a vector expression which is evaluated at a specified
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// interval and acted upon (currently either recorded or used for alerting).
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type Rule interface {
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// Name returns the name of the rule.
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Name() string
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// EvalRaw evaluates the rule's vector expression without triggering any
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// other actions, like recording or alerting.
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EvalRaw(timestamp time.Time, storage *metric.TieredStorage) (ast.Vector, error)
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// Eval evaluates the rule, including any associated recording or alerting actions.
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Eval(timestamp time.Time, storage *metric.TieredStorage) (ast.Vector, error)
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// ToDotGraph returns a Graphviz dot graph of the rule.
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ToDotGraph() string
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}
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