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opentelemetry-go/exporters/otlp/otlpmetric/otlpmetricgrpc/example_test.go
Joshua MacDonald 3c8e1853f0
Separate InstrumentationLibrary from metric.Descriptor (#2197)
* factor instrumentation library out of the instrument descriptor

* SDK tests pass

* checkpoint work

* otlp and opencensus tests passing

* prometheus

* tests pass, working on lint

* lint applied: MetricReader->Reader

* comments

* Changelog

* Apply suggestions from code review

Co-authored-by: alrex <alrex.boten@gmail.com>

* remove an interdependency

* fix build

* re-indent one

* Apply suggestions from code review

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>

* Lint&feedback

* update after rename

* comment fix

* style fix for meter options

* remove libraryReader, let Controller implement the reader API directly

* rename 'impl' field to 'provider'

* remove a type assertion

* move metric/registry into internal; move registry.MeterProvider into metric controller

* add test for controller registry function

* CheckpointSet->Reader everywhere

* lint

* remove two unnecessary accessor methods; Controller implements MeterProvider and InstrumentationLibraryReader directly, no need to get these

* use a sync.Map

* ensure the initOnce is always called; handle multiple errors

* Apply suggestions from code review

Co-authored-by: Anthony Mirabella <a9@aneurysm9.com>

* cleanup locking in metrictest

* Revert "ensure the initOnce is always called; handle multiple errors"

This reverts commit 3356eb5ed0.

* Revert "use a sync.Map"

This reverts commit ea7bc599bd.

* restore the TODO about sync.Map

Co-authored-by: alrex <alrex.boten@gmail.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
Co-authored-by: Anthony Mirabella <a9@aneurysm9.com>
2021-09-27 08:51:47 -07:00

204 lines
5.3 KiB
Go

// 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 otlpmetricgrpc_test
import (
"context"
"log"
"time"
"go.opentelemetry.io/otel/exporters/otlp/otlpmetric"
"go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc"
"go.opentelemetry.io/otel/sdk/metric/selector/simple"
"google.golang.org/grpc/credentials"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/metric"
"go.opentelemetry.io/otel/metric/global"
controller "go.opentelemetry.io/otel/sdk/metric/controller/basic"
processor "go.opentelemetry.io/otel/sdk/metric/processor/basic"
)
func Example_insecure() {
ctx := context.Background()
client := otlpmetricgrpc.NewClient(otlpmetricgrpc.WithInsecure())
exp, err := otlpmetric.New(ctx, client)
if err != nil {
log.Fatalf("Failed to create the collector exporter: %v", err)
}
defer func() {
ctx, cancel := context.WithTimeout(ctx, time.Second)
defer cancel()
if err := exp.Shutdown(ctx); err != nil {
otel.Handle(err)
}
}()
pusher := controller.New(
processor.NewFactory(
simple.NewWithExactDistribution(),
exp,
),
controller.WithExporter(exp),
controller.WithCollectPeriod(2*time.Second),
)
global.SetMeterProvider(pusher)
if err := pusher.Start(ctx); err != nil {
log.Fatalf("could not start metric controoler: %v", err)
}
defer func() {
ctx, cancel := context.WithTimeout(ctx, time.Second)
defer cancel()
// pushes any last exports to the receiver
if err := pusher.Stop(ctx); err != nil {
otel.Handle(err)
}
}()
meter := global.Meter("test-meter")
// Recorder metric example
counter := metric.Must(meter).
NewFloat64Counter(
"an_important_metric",
metric.WithDescription("Measures the cumulative epicness of the app"),
)
for i := 0; i < 10; i++ {
log.Printf("Doing really hard work (%d / 10)\n", i+1)
counter.Add(ctx, 1.0)
}
}
func Example_withTLS() {
// Please take at look at https://pkg.go.dev/google.golang.org/grpc/credentials#TransportCredentials
// for ways on how to initialize gRPC TransportCredentials.
creds, err := credentials.NewClientTLSFromFile("my-cert.pem", "")
if err != nil {
log.Fatalf("failed to create gRPC client TLS credentials: %v", err)
}
ctx := context.Background()
client := otlpmetricgrpc.NewClient(otlpmetricgrpc.WithTLSCredentials(creds))
exp, err := otlpmetric.New(ctx, client)
if err != nil {
log.Fatalf("failed to create the collector exporter: %v", err)
}
defer func() {
ctx, cancel := context.WithTimeout(ctx, time.Second)
defer cancel()
if err := exp.Shutdown(ctx); err != nil {
otel.Handle(err)
}
}()
pusher := controller.New(
processor.NewFactory(
simple.NewWithExactDistribution(),
exp,
),
controller.WithExporter(exp),
controller.WithCollectPeriod(2*time.Second),
)
global.SetMeterProvider(pusher)
if err := pusher.Start(ctx); err != nil {
log.Fatalf("could not start metric controoler: %v", err)
}
defer func() {
ctx, cancel := context.WithTimeout(ctx, time.Second)
defer cancel()
// pushes any last exports to the receiver
if err := pusher.Stop(ctx); err != nil {
otel.Handle(err)
}
}()
meter := global.Meter("test-meter")
// Recorder metric example
counter := metric.Must(meter).
NewFloat64Counter(
"an_important_metric",
metric.WithDescription("Measures the cumulative epicness of the app"),
)
for i := 0; i < 10; i++ {
log.Printf("Doing really hard work (%d / 10)\n", i+1)
counter.Add(ctx, 1.0)
}
}
func Example_withDifferentSignalCollectors() {
client := otlpmetricgrpc.NewClient(
otlpmetricgrpc.WithInsecure(),
otlpmetricgrpc.WithEndpoint("localhost:30080"),
)
ctx := context.Background()
exp, err := otlpmetric.New(ctx, client)
if err != nil {
log.Fatalf("failed to create the collector exporter: %v", err)
}
defer func() {
ctx, cancel := context.WithTimeout(ctx, time.Second)
defer cancel()
if err := exp.Shutdown(ctx); err != nil {
otel.Handle(err)
}
}()
pusher := controller.New(
processor.NewFactory(
simple.NewWithExactDistribution(),
exp,
),
controller.WithExporter(exp),
controller.WithCollectPeriod(2*time.Second),
)
global.SetMeterProvider(pusher)
if err := pusher.Start(ctx); err != nil {
log.Fatalf("could not start metric controoler: %v", err)
}
defer func() {
ctx, cancel := context.WithTimeout(ctx, time.Second)
defer cancel()
// pushes any last exports to the receiver
if err := pusher.Stop(ctx); err != nil {
otel.Handle(err)
}
}()
meter := global.Meter("test-meter")
// Recorder metric example
counter := metric.Must(meter).
NewFloat64Counter(
"an_important_metric",
metric.WithDescription("Measures the cumulative epicness of the app"),
)
for i := 0; i < 10; i++ {
log.Printf("Doing really hard work (%d / 10)\n", i+1)
counter.Add(ctx, 1.0)
}
log.Printf("Done!")
}