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0e2fdfc682
* Update Process() * Checkpoint * Add subtractor; fix test * Fix all simple integrator tests * Build the rest (checkpoint) * Pass all but Prometheus tests * Precommit pass * Add aggregation.Kind argument to ExportKindFor * Remove Subtractor support * Remove dead test code * Restore the Subtractor code * Fix the tests * Comments * Add tests for MetricKind * Add ChangeSign test * Test ExportKind * New file * Rename ChangeSign * Remove a TODO, add a TODO * Remove Stateful remnants * Typo * Typo * Test an invalid export kind * Comments * Lint * Apply suggestions from code review Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com> Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
80 lines
2.2 KiB
Go
80 lines
2.2 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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//go:generate stringer -type=Kind
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package metric
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// Kind describes the kind of instrument.
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type Kind int8
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const (
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// ValueRecorderKind indicates a ValueRecorder instrument.
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ValueRecorderKind Kind = iota
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// ValueObserverKind indicates an ValueObserver instrument.
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ValueObserverKind
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// CounterKind indicates a Counter instrument.
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CounterKind
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// UpDownCounterKind indicates a UpDownCounter instrument.
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UpDownCounterKind
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// SumObserverKind indicates a SumObserver instrument.
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SumObserverKind
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// UpDownSumObserverKind indicates a UpDownSumObserver instrument.
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UpDownSumObserverKind
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)
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// Synchronous returns whether this is a synchronous kind of instrument.
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func (k Kind) Synchronous() bool {
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switch k {
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case CounterKind, UpDownCounterKind, ValueRecorderKind:
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return true
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}
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return false
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}
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// Asynchronous returns whether this is an asynchronous kind of instrument.
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func (k Kind) Asynchronous() bool {
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return !k.Synchronous()
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}
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// Adding returns whether this kind of instrument adds its inputs (as opposed to Grouping).
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func (k Kind) Adding() bool {
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switch k {
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case CounterKind, UpDownCounterKind, SumObserverKind, UpDownSumObserverKind:
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return true
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}
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return false
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}
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// Adding returns whether this kind of instrument groups its inputs (as opposed to Adding).
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func (k Kind) Grouping() bool {
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return !k.Adding()
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}
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// Monotonic returns whether this kind of instrument exposes a non-decreasing sum.
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func (k Kind) Monotonic() bool {
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switch k {
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case CounterKind, SumObserverKind:
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return true
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}
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return false
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}
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// Cumulative returns whether this kind of instrument receives precomputed sums.
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func (k Kind) PrecomputedSum() bool {
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return k.Adding() && k.Asynchronous()
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}
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