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df384a9a33
* Move InstrumentKind into the new metric/sdkapi package * remove the alias * remove the alias (everywhere) * Changelog * Add a test * merge updates * fix changelog Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
54 lines
1.9 KiB
Go
54 lines
1.9 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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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 aggregator // import "go.opentelemetry.io/otel/sdk/metric/aggregator"
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import (
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"fmt"
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"math"
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"go.opentelemetry.io/otel/metric"
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"go.opentelemetry.io/otel/metric/number"
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"go.opentelemetry.io/otel/metric/sdkapi"
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export "go.opentelemetry.io/otel/sdk/export/metric"
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"go.opentelemetry.io/otel/sdk/export/metric/aggregation"
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)
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// NewInconsistentAggregatorError formats an error describing an attempt to
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// Checkpoint or Merge different-type aggregators. The result can be unwrapped as
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// an ErrInconsistentType.
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func NewInconsistentAggregatorError(a1, a2 export.Aggregator) error {
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return fmt.Errorf("%w: %T and %T", aggregation.ErrInconsistentType, a1, a2)
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}
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// RangeTest is a common routine for testing for valid input values.
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// This rejects NaN values. This rejects negative values when the
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// metric instrument does not support negative values, including
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// monotonic counter metrics and absolute ValueRecorder metrics.
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func RangeTest(num number.Number, descriptor *metric.Descriptor) error {
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numberKind := descriptor.NumberKind()
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if numberKind == number.Float64Kind && math.IsNaN(num.AsFloat64()) {
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return aggregation.ErrNaNInput
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}
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switch descriptor.InstrumentKind() {
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case sdkapi.CounterInstrumentKind, sdkapi.SumObserverInstrumentKind:
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if num.IsNegative(numberKind) {
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return aggregation.ErrNegativeInput
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}
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}
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return nil
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}
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