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0833d2a230
* Fix appendable: check whether last val was a histogram When appending a float, we were checking whether lastValue was equal to current value, but we didn't check whether last value was a float value. Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
63 lines
2.1 KiB
Go
63 lines
2.1 KiB
Go
// Copyright 2014 The Prometheus 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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//
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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 storage
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import "fmt"
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type errDuplicateSampleForTimestamp struct {
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timestamp int64
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existing float64
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existingIsHistogram bool
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newValue float64
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}
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func NewDuplicateFloatErr(t int64, existing, newValue float64) error {
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return errDuplicateSampleForTimestamp{
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timestamp: t,
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existing: existing,
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newValue: newValue,
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}
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}
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// NewDuplicateHistogramToFloatErr describes an error where a new float sample is sent for same timestamp as previous histogram.
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func NewDuplicateHistogramToFloatErr(t int64, newValue float64) error {
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return errDuplicateSampleForTimestamp{
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timestamp: t,
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existingIsHistogram: true,
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newValue: newValue,
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}
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}
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func (e errDuplicateSampleForTimestamp) Error() string {
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if e.timestamp == 0 {
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return "duplicate sample for timestamp"
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}
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if e.existingIsHistogram {
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return fmt.Sprintf("duplicate sample for timestamp %d; overrides not allowed: existing is a histogram, new value %g", e.timestamp, e.newValue)
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}
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return fmt.Sprintf("duplicate sample for timestamp %d; overrides not allowed: existing %g, new value %g", e.timestamp, e.existing, e.newValue)
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}
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// Is implements the anonymous interface checked by errors.Is.
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// Every errDuplicateSampleForTimestamp compares equal to the global ErrDuplicateSampleForTimestamp.
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func (e errDuplicateSampleForTimestamp) Is(t error) bool {
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if t == ErrDuplicateSampleForTimestamp {
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return true
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}
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if v, ok := t.(errDuplicateSampleForTimestamp); ok {
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return e == v
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}
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return false
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}
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