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chore: update dependencies

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This commit is contained in:
Cyrille Nofficial
2022-01-03 16:46:10 +01:00
parent ba9e54d1fb
commit 56b9570287
67 changed files with 2600 additions and 9537 deletions
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41
vendor/go.opentelemetry.io/otel/sdk/export/metric/aggregation/aggregation.go generated vendored
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@@ -64,22 +64,6 @@ type (
LastValue() (number.Number, time.Time, error)
}
// Points returns the raw values that were aggregated.
Points interface {
Aggregation
// Points returns points in the order they were
// recorded. Points are approximately ordered by
// timestamp, but this is not guaranteed.
Points() ([]Point, error)
}
// Point is a raw data point, consisting of a number and value.
Point struct {
number.Number
time.Time
}
// Buckets represents histogram buckets boundaries and counts.
//
// For a Histogram with N defined boundaries, e.g, [x, y, z].
@@ -100,15 +84,6 @@ type (
Sum() (number.Number, error)
Histogram() (Buckets, error)
}
// MinMaxSumCount supports the Min, Max, Sum, and Count interfaces.
MinMaxSumCount interface {
Aggregation
Min() (number.Number, error)
Max() (number.Number, error)
Sum() (number.Number, error)
Count() (uint64, error)
}
)
type (
@@ -122,19 +97,16 @@ type (
// deciding how to expose metric data. This enables
// user-supplied Aggregators to replace builtin Aggregators.
//
// For example, test for a Distribution before testing for a
// MinMaxSumCount, test for a Histogram before testing for a
// For example, test for a Histogram before testing for a
// Sum, and so on.
Kind string
)
// Kind description constants.
const (
SumKind Kind = "Sum"
MinMaxSumCountKind Kind = "MinMaxSumCount"
HistogramKind Kind = "Histogram"
LastValueKind Kind = "Lastvalue"
ExactKind Kind = "Exact"
SumKind Kind = "Sum"
HistogramKind Kind = "Histogram"
LastValueKind Kind = "Lastvalue"
)
// Sentinel errors for Aggregation interface.
@@ -142,7 +114,10 @@ var (
ErrNegativeInput = fmt.Errorf("negative value is out of range for this instrument")
ErrNaNInput = fmt.Errorf("NaN value is an invalid input")
ErrInconsistentType = fmt.Errorf("inconsistent aggregator types")
ErrNoSubtraction = fmt.Errorf("aggregator does not subtract")
// ErrNoCumulativeToDelta is returned when requesting delta
// export kind for a precomputed sum instrument.
ErrNoCumulativeToDelta = fmt.Errorf("cumulative to delta not implemented")
// ErrNoData is returned when (due to a race with collection)
// the Aggregator is check-pointed before the first value is set.

13
vendor/go.opentelemetry.io/otel/sdk/export/metric/metric.go generated vendored
View File

@@ -139,8 +139,7 @@ type CheckpointerFactory interface {
//
// Note that any Aggregator may be attached to any instrument--this is
// the result of the OpenTelemetry API/SDK separation. It is possible
// to attach a Sum aggregator to a Histogram instrument or a
// MinMaxSumCount aggregator to a Counter instrument.
// to attach a Sum aggregator to a Histogram instrument.
type Aggregator interface {
// Aggregation returns an Aggregation interface to access the
// current state of this Aggregator. The caller is
@@ -193,16 +192,6 @@ type Aggregator interface {
Merge(aggregator Aggregator, descriptor *sdkapi.Descriptor) error
}
// Subtractor is an optional interface implemented by some
// Aggregators. An Aggregator must support `Subtract()` in order to
// be configured for a Precomputed-Sum instrument (CounterObserver,
// UpDownCounterObserver) using a DeltaExporter.
type Subtractor interface {
// Subtract subtracts the `operand` from this Aggregator and
// outputs the value in `result`.
Subtract(operand, result Aggregator, descriptor *sdkapi.Descriptor) error
}
// Exporter handles presentation of the checkpoint of aggregate
// metrics. This is the final stage of a metrics export pipeline,
// where metric data are formatted for a specific system.

130
vendor/go.opentelemetry.io/otel/sdk/metric/aggregator/exact/exact.go generated vendored
View File

@@ -1,130 +0,0 @@
// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package exact // import "go.opentelemetry.io/otel/sdk/metric/aggregator/exact"
import (
"context"
"sync"
"time"
"go.opentelemetry.io/otel/metric/number"
"go.opentelemetry.io/otel/metric/sdkapi"
export "go.opentelemetry.io/otel/sdk/export/metric"
"go.opentelemetry.io/otel/sdk/export/metric/aggregation"
"go.opentelemetry.io/otel/sdk/metric/aggregator"
)
type (
// Aggregator aggregates events that form a distribution, keeping
// an array with the exact set of values.
Aggregator struct {
lock sync.Mutex
samples []aggregation.Point
}
)
var _ export.Aggregator = &Aggregator{}
var _ aggregation.Points = &Aggregator{}
var _ aggregation.Count = &Aggregator{}
// New returns cnt many new exact aggregators, which aggregate recorded
// measurements by storing them in an array. This type uses a mutex
// for Update() and SynchronizedMove() concurrency.
func New(cnt int) []Aggregator {
return make([]Aggregator, cnt)
}
// Aggregation returns an interface for reading the state of this aggregator.
func (c *Aggregator) Aggregation() aggregation.Aggregation {
return c
}
// Kind returns aggregation.ExactKind.
func (c *Aggregator) Kind() aggregation.Kind {
return aggregation.ExactKind
}
// Count returns the number of values in the checkpoint.
func (c *Aggregator) Count() (uint64, error) {
return uint64(len(c.samples)), nil
}
// Points returns access to the raw data set.
func (c *Aggregator) Points() ([]aggregation.Point, error) {
return c.samples, nil
}
// SynchronizedMove saves the current state to oa and resets the current state to
// the empty set, taking a lock to prevent concurrent Update() calls.
func (c *Aggregator) SynchronizedMove(oa export.Aggregator, desc *sdkapi.Descriptor) error {
o, _ := oa.(*Aggregator)
if oa != nil && o == nil {
return aggregator.NewInconsistentAggregatorError(c, oa)
}
c.lock.Lock()
defer c.lock.Unlock()
if o != nil {
o.samples = c.samples
}
c.samples = nil
return nil
}
// Update adds the recorded measurement to the current data set.
// Update takes a lock to prevent concurrent Update() and SynchronizedMove()
// calls.
func (c *Aggregator) Update(_ context.Context, number number.Number, desc *sdkapi.Descriptor) error {
now := time.Now()
c.lock.Lock()
defer c.lock.Unlock()
c.samples = append(c.samples, aggregation.Point{
Number: number,
Time: now,
})
return nil
}
// Merge combines two data sets into one.
func (c *Aggregator) Merge(oa export.Aggregator, desc *sdkapi.Descriptor) error {
o, _ := oa.(*Aggregator)
if o == nil {
return aggregator.NewInconsistentAggregatorError(c, oa)
}
c.samples = combine(c.samples, o.samples)
return nil
}
func combine(a, b []aggregation.Point) []aggregation.Point {
result := make([]aggregation.Point, 0, len(a)+len(b))
for len(a) != 0 && len(b) != 0 {
if a[0].Time.Before(b[0].Time) {
result = append(result, a[0])
a = a[1:]
} else {
result = append(result, b[0])
b = b[1:]
}
}
result = append(result, a...)
result = append(result, b...)
return result
}

165
vendor/go.opentelemetry.io/otel/sdk/metric/aggregator/minmaxsumcount/mmsc.go generated vendored
View File

@@ -1,165 +0,0 @@
// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package minmaxsumcount // import "go.opentelemetry.io/otel/sdk/metric/aggregator/minmaxsumcount"
import (
"context"
"sync"
"go.opentelemetry.io/otel/metric/number"
"go.opentelemetry.io/otel/metric/sdkapi"
export "go.opentelemetry.io/otel/sdk/export/metric"
"go.opentelemetry.io/otel/sdk/export/metric/aggregation"
"go.opentelemetry.io/otel/sdk/metric/aggregator"
)
type (
// Aggregator aggregates events that form a distribution,
// keeping only the min, max, sum, and count.
Aggregator struct {
lock sync.Mutex
kind number.Kind
state
}
state struct {
sum number.Number
min number.Number
max number.Number
count uint64
}
)
var _ export.Aggregator = &Aggregator{}
var _ aggregation.MinMaxSumCount = &Aggregator{}
// New returns a new aggregator for computing the min, max, sum, and
// count.
//
// This type uses a mutex for Update() and SynchronizedMove() concurrency.
func New(cnt int, desc *sdkapi.Descriptor) []Aggregator {
kind := desc.NumberKind()
aggs := make([]Aggregator, cnt)
for i := range aggs {
aggs[i] = Aggregator{
kind: kind,
state: emptyState(kind),
}
}
return aggs
}
// Aggregation returns an interface for reading the state of this aggregator.
func (c *Aggregator) Aggregation() aggregation.Aggregation {
return c
}
// Kind returns aggregation.MinMaxSumCountKind.
func (c *Aggregator) Kind() aggregation.Kind {
return aggregation.MinMaxSumCountKind
}
// Sum returns the sum of values in the checkpoint.
func (c *Aggregator) Sum() (number.Number, error) {
return c.sum, nil
}
// Count returns the number of values in the checkpoint.
func (c *Aggregator) Count() (uint64, error) {
return c.count, nil
}
// Min returns the minimum value in the checkpoint.
// The error value aggregation.ErrNoData will be returned
// if there were no measurements recorded during the checkpoint.
func (c *Aggregator) Min() (number.Number, error) {
if c.count == 0 {
return 0, aggregation.ErrNoData
}
return c.min, nil
}
// Max returns the maximum value in the checkpoint.
// The error value aggregation.ErrNoData will be returned
// if there were no measurements recorded during the checkpoint.
func (c *Aggregator) Max() (number.Number, error) {
if c.count == 0 {
return 0, aggregation.ErrNoData
}
return c.max, nil
}
// SynchronizedMove saves the current state into oa and resets the current state to
// the empty set.
func (c *Aggregator) SynchronizedMove(oa export.Aggregator, desc *sdkapi.Descriptor) error {
o, _ := oa.(*Aggregator)
if oa != nil && o == nil {
return aggregator.NewInconsistentAggregatorError(c, oa)
}
c.lock.Lock()
if o != nil {
o.state = c.state
}
c.state = emptyState(c.kind)
c.lock.Unlock()
return nil
}
func emptyState(kind number.Kind) state {
return state{
count: 0,
sum: 0,
min: kind.Maximum(),
max: kind.Minimum(),
}
}
// Update adds the recorded measurement to the current data set.
func (c *Aggregator) Update(_ context.Context, number number.Number, desc *sdkapi.Descriptor) error {
kind := desc.NumberKind()
c.lock.Lock()
defer c.lock.Unlock()
c.count++
c.sum.AddNumber(kind, number)
if number.CompareNumber(kind, c.min) < 0 {
c.min = number
}
if number.CompareNumber(kind, c.max) > 0 {
c.max = number
}
return nil
}
// Merge combines two data sets into one.
func (c *Aggregator) Merge(oa export.Aggregator, desc *sdkapi.Descriptor) error {
o, _ := oa.(*Aggregator)
if o == nil {
return aggregator.NewInconsistentAggregatorError(c, oa)
}
c.count += o.count
c.sum.AddNumber(desc.NumberKind(), o.sum)
if c.min.CompareNumber(desc.NumberKind(), o.min) > 0 {
c.min.SetNumber(o.min)
}
if c.max.CompareNumber(desc.NumberKind(), o.max) < 0 {
c.max.SetNumber(o.max)
}
return nil
}

17
vendor/go.opentelemetry.io/otel/sdk/metric/aggregator/sum/sum.go generated vendored
View File

@@ -32,7 +32,6 @@ type Aggregator struct {
}
var _ export.Aggregator = &Aggregator{}
var _ export.Subtractor = &Aggregator{}
var _ aggregation.Sum = &Aggregator{}
// New returns a new counter aggregator implemented by atomic
@@ -88,19 +87,3 @@ func (c *Aggregator) Merge(oa export.Aggregator, desc *sdkapi.Descriptor) error
c.value.AddNumber(desc.NumberKind(), o.value)
return nil
}
func (c *Aggregator) Subtract(opAgg, resAgg export.Aggregator, descriptor *sdkapi.Descriptor) error {
op, _ := opAgg.(*Aggregator)
if op == nil {
return aggregator.NewInconsistentAggregatorError(c, opAgg)
}
res, _ := resAgg.(*Aggregator)
if res == nil {
return aggregator.NewInconsistentAggregatorError(c, resAgg)
}
res.value = c.value
res.value.AddNumber(descriptor.NumberKind(), number.NewNumberSignChange(descriptor.NumberKind(), op.value))
return nil
}

43
vendor/go.opentelemetry.io/otel/sdk/metric/controller/basic/controller.go generated vendored
View File

@@ -56,14 +56,9 @@ var ErrControllerStarted = fmt.Errorf("controller already started")
// using the export.Reader RWLock interface. Collection will
// be blocked by a pull request in the basic controller.
type Controller struct {
// lock protects libraries and synchronizes Start() and Stop().
lock sync.Mutex
// TODO: libraries is synchronized by lock, but could be
// accomplished using a sync.Map. The SDK specification will
// probably require this, as the draft already states that
// Stop() and MeterProvider.Meter() should not block each
// other.
libraries map[instrumentation.Library]*registry.UniqueInstrumentMeterImpl
// lock synchronizes Start() and Stop().
lock sync.Mutex
libraries sync.Map
checkpointerFactory export.CheckpointerFactory
resource *resource.Resource
@@ -93,21 +88,18 @@ func (c *Controller) Meter(instrumentationName string, opts ...metric.MeterOptio
SchemaURL: cfg.SchemaURL(),
}
c.lock.Lock()
defer c.lock.Unlock()
m, ok := c.libraries[library]
m, ok := c.libraries.Load(library)
if !ok {
checkpointer := c.checkpointerFactory.NewCheckpointer()
accumulator := sdk.NewAccumulator(checkpointer)
m = registry.NewUniqueInstrumentMeterImpl(&accumulatorCheckpointer{
Accumulator: accumulator,
checkpointer: checkpointer,
library: library,
})
c.libraries[library] = m
m, _ = c.libraries.LoadOrStore(
library,
registry.NewUniqueInstrumentMeterImpl(&accumulatorCheckpointer{
Accumulator: sdk.NewAccumulator(checkpointer),
checkpointer: checkpointer,
library: library,
}))
}
return metric.WrapMeterImpl(m)
return metric.WrapMeterImpl(m.(*registry.UniqueInstrumentMeterImpl))
}
type accumulatorCheckpointer struct {
@@ -138,7 +130,6 @@ func New(checkpointerFactory export.CheckpointerFactory, opts ...Option) *Contro
}
}
return &Controller{
libraries: map[instrumentation.Library]*registry.UniqueInstrumentMeterImpl{},
checkpointerFactory: checkpointerFactory,
exporter: c.Exporter,
resource: c.Resource,
@@ -251,16 +242,14 @@ func (c *Controller) collect(ctx context.Context) error {
// accumulatorList returns a snapshot of current accumulators
// registered to this controller. This briefly locks the controller.
func (c *Controller) accumulatorList() []*accumulatorCheckpointer {
c.lock.Lock()
defer c.lock.Unlock()
var r []*accumulatorCheckpointer
for _, entry := range c.libraries {
acc, ok := entry.MeterImpl().(*accumulatorCheckpointer)
c.libraries.Range(func(key, value interface{}) bool {
acc, ok := value.(*registry.UniqueInstrumentMeterImpl).MeterImpl().(*accumulatorCheckpointer)
if ok {
r = append(r, acc)
}
}
return true
})
return r
}

6
vendor/go.opentelemetry.io/otel/sdk/metric/doc.go generated vendored
View File

@@ -28,9 +28,7 @@ and asynchronous instruments. There are two constructors per instrument for
the two kinds of number (int64, float64).
Synchronous instruments are managed by a sync.Map containing a *record
with the current state for each synchronous instrument. A bound
instrument encapsulates a direct pointer to the record, allowing
bound metric events to bypass a sync.Map lookup. A lock-free
with the current state for each synchronous instrument. A lock-free
algorithm is used to protect against races when adding and removing
items from the sync.Map.
@@ -45,7 +43,7 @@ record contains a set of recorders for every specific label set used in the
callback.
A sync.Map maintains the mapping of current instruments and label sets to
internal records. To create a new bound instrument, the SDK consults the Map to
internal records. To find a record, the SDK consults the Map to
locate an existing record, otherwise it constructs a new record. The SDK
maintains a count of the number of references to each record, ensuring
that records are not reclaimed from the Map while they are still active

77
vendor/go.opentelemetry.io/otel/sdk/metric/processor/basic/basic.go generated vendored
View File

@@ -76,11 +76,6 @@ type (
// values in a single collection round.
current export.Aggregator
// delta, if non-nil, refers to an Aggregator owned by
// the processor used to compute deltas between
// precomputed sums.
delta export.Aggregator
// cumulative, if non-nil, refers to an Aggregator owned
// by the processor used to store the last cumulative
// value.
@@ -94,9 +89,6 @@ type (
sync.RWMutex
values map[stateKey]*stateValue
// Note: the timestamp logic currently assumes all
// exports are deltas.
processStart time.Time
intervalStart time.Time
intervalEnd time.Time
@@ -124,8 +116,8 @@ var ErrInvalidTemporality = fmt.Errorf("invalid aggregation temporality")
// New returns a basic Processor that is also a Checkpointer using the provided
// AggregatorSelector to select Aggregators. The TemporalitySelector
// is consulted to determine the kind(s) of exporter that will consume
// data, so that this Processor can prepare to compute Delta or
// Cumulative Aggregations as needed.
// data, so that this Processor can prepare to compute Cumulative Aggregations
// as needed.
func New(aselector export.AggregatorSelector, tselector aggregation.TemporalitySelector, opts ...Option) *Processor {
return NewFactory(aselector, tselector, opts...).NewCheckpointer().(*Processor)
}
@@ -191,13 +183,17 @@ func (b *Processor) Process(accum export.Accumulation) error {
}
if stateful {
if desc.InstrumentKind().PrecomputedSum() {
// If we know we need to compute deltas, allocate two aggregators.
b.AggregatorFor(desc, &newValue.cumulative, &newValue.delta)
} else {
// In this case we are certain not to need a delta, only allocate
// a cumulative aggregator.
b.AggregatorFor(desc, &newValue.cumulative)
// To convert precomputed sums to
// deltas requires two aggregators to
// be allocated, one for the prior
// value and one for the output delta.
// This functionality was removed from
// the basic processor in PR #2350.
return aggregation.ErrNoCumulativeToDelta
}
// In this case allocate one aggregator to
// save the current state.
b.AggregatorFor(desc, &newValue.cumulative)
}
b.state.values[key] = newValue
return nil
@@ -310,28 +306,15 @@ func (b *Processor) FinishCollection() error {
continue
}
// Update Aggregator state to support exporting either a
// delta or a cumulative aggregation.
var err error
if mkind.PrecomputedSum() {
if currentSubtractor, ok := value.current.(export.Subtractor); ok {
// This line is equivalent to:
// value.delta = currentSubtractor - value.cumulative
err = currentSubtractor.Subtract(value.cumulative, value.delta, key.descriptor)
if err == nil {
err = value.current.SynchronizedMove(value.cumulative, key.descriptor)
}
} else {
err = aggregation.ErrNoSubtraction
}
} else {
// The only kind of aggregators that are not stateless
// are the ones needing delta to cumulative
// conversion. Merge aggregator state in this case.
if !mkind.PrecomputedSum() {
// This line is equivalent to:
// value.cumulative = value.cumulative + value.delta
err = value.cumulative.Merge(value.current, key.descriptor)
}
if err != nil {
return err
// value.cumulative = value.cumulative + value.current
if err := value.cumulative.Merge(value.current, key.descriptor); err != nil {
return err
}
}
}
return nil
@@ -350,13 +333,8 @@ func (b *state) ForEach(exporter aggregation.TemporalitySelector, f func(export.
var agg aggregation.Aggregation
var start time.Time
// If the processor does not have Config.Memory and it was not updated
// in the prior round, do not visit this value.
if !b.config.Memory && value.updated != (b.finishedCollection-1) {
continue
}
aggTemp := exporter.TemporalityFor(key.descriptor, value.current.Aggregation().Kind())
switch aggTemp {
case aggregation.CumulativeTemporality:
// If stateful, the sum has been computed. If stateless, the
@@ -372,16 +350,23 @@ func (b *state) ForEach(exporter aggregation.TemporalitySelector, f func(export.
case aggregation.DeltaTemporality:
// Precomputed sums are a special case.
if mkind.PrecomputedSum() {
agg = value.delta.Aggregation()
} else {
agg = value.current.Aggregation()
// This functionality was removed from
// the basic processor in PR #2350.
return aggregation.ErrNoCumulativeToDelta
}
agg = value.current.Aggregation()
start = b.intervalStart
default:
return fmt.Errorf("%v: %w", aggTemp, ErrInvalidTemporality)
}
// If the processor does not have Config.Memory and it was not updated
// in the prior round, do not visit this value.
if !b.config.Memory && value.updated != (b.finishedCollection-1) {
continue
}
if err := f(export.NewRecord(
key.descriptor,
value.labels,

19
vendor/go.opentelemetry.io/otel/sdk/metric/sdk.go generated vendored
View File

@@ -138,10 +138,9 @@ type (
)
var (
_ sdkapi.MeterImpl = &Accumulator{}
_ sdkapi.AsyncImpl = &asyncInstrument{}
_ sdkapi.SyncImpl = &syncInstrument{}
_ sdkapi.BoundSyncImpl = &record{}
_ sdkapi.MeterImpl = &Accumulator{}
_ sdkapi.AsyncImpl = &asyncInstrument{}
_ sdkapi.SyncImpl = &syncInstrument{}
// ErrUninitializedInstrument is returned when an instrument is used when uninitialized.
ErrUninitializedInstrument = fmt.Errorf("use of an uninitialized instrument")
@@ -279,15 +278,10 @@ func (s *syncInstrument) acquireHandle(kvs []attribute.KeyValue, labelPtr *attri
}
}
// The order of the input array `kvs` may be sorted after the function is called.
func (s *syncInstrument) Bind(kvs []attribute.KeyValue) sdkapi.BoundSyncImpl {
return s.acquireHandle(kvs, nil)
}
// The order of the input array `kvs` may be sorted after the function is called.
func (s *syncInstrument) RecordOne(ctx context.Context, num number.Number, kvs []attribute.KeyValue) {
h := s.acquireHandle(kvs, nil)
defer h.Unbind()
defer h.unbind()
h.RecordOne(ctx, num)
}
@@ -490,7 +484,7 @@ func (m *Accumulator) RecordBatch(ctx context.Context, kvs []attribute.KeyValue,
labelsPtr = h.labels
}
defer h.Unbind()
defer h.unbind()
h.RecordOne(ctx, meas.Number())
}
}
@@ -514,8 +508,7 @@ func (r *record) RecordOne(ctx context.Context, num number.Number) {
atomic.AddInt64(&r.updateCount, 1)
}
// Unbind implements sdkapi.SyncImpl.
func (r *record) Unbind() {
func (r *record) unbind() {
r.refMapped.unref()
}

29
vendor/go.opentelemetry.io/otel/sdk/metric/selector/simple/simple.go generated vendored
View File

@@ -17,16 +17,13 @@ package simple // import "go.opentelemetry.io/otel/sdk/metric/selector/simple"
import (
"go.opentelemetry.io/otel/metric/sdkapi"
export "go.opentelemetry.io/otel/sdk/export/metric"
"go.opentelemetry.io/otel/sdk/metric/aggregator/exact"
"go.opentelemetry.io/otel/sdk/metric/aggregator/histogram"
"go.opentelemetry.io/otel/sdk/metric/aggregator/lastvalue"
"go.opentelemetry.io/otel/sdk/metric/aggregator/minmaxsumcount"
"go.opentelemetry.io/otel/sdk/metric/aggregator/sum"
)
type (
selectorInexpensive struct{}
selectorExact struct{}
selectorHistogram struct {
options []histogram.Option
}
@@ -34,7 +31,6 @@ type (
var (
_ export.AggregatorSelector = selectorInexpensive{}
_ export.AggregatorSelector = selectorExact{}
_ export.AggregatorSelector = selectorHistogram{}
)
@@ -47,15 +43,6 @@ func NewWithInexpensiveDistribution() export.AggregatorSelector {
return selectorInexpensive{}
}
// NewWithExactDistribution returns a simple aggregator selector that
// uses exact aggregators for `Histogram` instruments. This
// selector uses more memory than the others in this package because
// exact aggregators maintain the most information about the
// distribution among these choices.
func NewWithExactDistribution() export.AggregatorSelector {
return selectorExact{}
}
// NewWithHistogramDistribution returns a simple aggregator selector
// that uses histogram aggregators for `Histogram` instruments.
// This selector is a good default choice for most metric exporters.
@@ -82,21 +69,7 @@ func (selectorInexpensive) AggregatorFor(descriptor *sdkapi.Descriptor, aggPtrs
case sdkapi.GaugeObserverInstrumentKind:
lastValueAggs(aggPtrs)
case sdkapi.HistogramInstrumentKind:
aggs := minmaxsumcount.New(len(aggPtrs), descriptor)
for i := range aggPtrs {
*aggPtrs[i] = &aggs[i]
}
default:
sumAggs(aggPtrs)
}
}
func (selectorExact) AggregatorFor(descriptor *sdkapi.Descriptor, aggPtrs ...*export.Aggregator) {
switch descriptor.InstrumentKind() {
case sdkapi.GaugeObserverInstrumentKind:
lastValueAggs(aggPtrs)
case sdkapi.HistogramInstrumentKind:
aggs := exact.New(len(aggPtrs))
aggs := sum.New(len(aggPtrs))
for i := range aggPtrs {
*aggPtrs[i] = &aggs[i]
}

39
vendor/go.opentelemetry.io/otel/sdk/resource/resource.go generated vendored
View File

@@ -18,6 +18,7 @@ import (
"context"
"errors"
"fmt"
"sync"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/attribute"
@@ -36,26 +37,12 @@ type Resource struct {
}
var (
emptyResource Resource
defaultResource = func(r *Resource, err error) *Resource {
if err != nil {
otel.Handle(err)
}
return r
}(
Detect(
context.Background(),
defaultServiceNameDetector{},
fromEnv{},
telemetrySDK{},
),
)
emptyResource Resource
defaultResource *Resource
defaultResourceOnce sync.Once
)
var (
errMergeConflictSchemaURL = errors.New("cannot merge resource due to conflicting Schema URL")
)
var errMergeConflictSchemaURL = errors.New("cannot merge resource due to conflicting Schema URL")
// New returns a Resource combined from the user-provided detectors.
func New(ctx context.Context, opts ...Option) (*Resource, error) {
@@ -211,6 +198,22 @@ func Empty() *Resource {
// Default returns an instance of Resource with a default
// "service.name" and OpenTelemetrySDK attributes.
func Default() *Resource {
defaultResourceOnce.Do(func() {
var err error
defaultResource, err = Detect(
context.Background(),
defaultServiceNameDetector{},
fromEnv{},
telemetrySDK{},
)
if err != nil {
otel.Handle(err)
}
// If Detect did not return a valid resource, fall back to emptyResource.
if defaultResource == nil {
defaultResource = &emptyResource
}
})
return defaultResource
}