Add profiles support to nop exporter (#14332)

#### Link to tracking issue
Fixes #14331

Signed-off-by: Israel Blancas <iblancasa@gmail.com>

Author: iblancasa

.chloggen/14331.yaml

@@ -0,0 +1,25 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: enhancement
+
+# The name of the component, or a single word describing the area of concern, (e.g. receiver/otlp)
+component: exporter/nop
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Add profiles support to nop exporter
+
+# One or more tracking issues or pull requests related to the change
+issues: [14331]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: ['user']

exporter/nopexporter/README.md

@@ -3,11 +3,13 @@
 <!-- status autogenerated section -->
 | Status        |           |
 | ------------- |-----------|
-| Stability     | [beta]: traces, metrics, logs   |
+| Stability     | [development]: profiles   |
+|               | [beta]: traces, metrics, logs   |
 | Distributions | [core], [contrib], [k8s] |
 | Issues        | [![Open issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector?query=is%3Aissue%20is%3Aopen%20label%3Aexporter%2Fnop%20&label=open&color=orange&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector/issues?q=is%3Aopen+is%3Aissue+label%3Aexporter%2Fnop) [![Closed issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector?query=is%3Aissue%20is%3Aclosed%20label%3Aexporter%2Fnop%20&label=closed&color=blue&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector/issues?q=is%3Aclosed+is%3Aissue+label%3Aexporter%2Fnop) |
 | [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    | [@evan-bradley](https://www.github.com/evan-bradley) |
 
+[development]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#development
 [beta]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#beta
 [core]: https://github.com/open-telemetry/opentelemetry-collector-releases/tree/main/distributions/otelcol
 [contrib]: https://github.com/open-telemetry/opentelemetry-collector-releases/tree/main/distributions/otelcol-contrib

exporter/nopexporter/go.mod

@@ -10,7 +10,9 @@ require (
 	go.opentelemetry.io/collector/consumer/consumertest v0.142.0
 	go.opentelemetry.io/collector/exporter v1.48.0
 	go.opentelemetry.io/collector/exporter/exportertest v0.142.0
+	go.opentelemetry.io/collector/exporter/xexporter v0.142.0
 	go.opentelemetry.io/collector/pdata v1.48.0
+	go.opentelemetry.io/collector/pdata/pprofile v0.142.0
 	go.uber.org/goleak v1.3.0
 )
 
@@ -36,9 +38,7 @@ require (
 	go.opentelemetry.io/collector/consumer v1.48.0 // indirect
 	go.opentelemetry.io/collector/consumer/consumererror v0.142.0 // indirect
 	go.opentelemetry.io/collector/consumer/xconsumer v0.142.0 // indirect
-	go.opentelemetry.io/collector/exporter/xexporter v0.142.0 // indirect
 	go.opentelemetry.io/collector/featuregate v1.48.0 // indirect
-	go.opentelemetry.io/collector/pdata/pprofile v0.142.0 // indirect
 	go.opentelemetry.io/collector/pipeline v1.48.0 // indirect
 	go.opentelemetry.io/collector/receiver v1.48.0 // indirect
 	go.opentelemetry.io/collector/receiver/receivertest v0.142.0 // indirect

exporter/nopexporter/internal/metadata/generated_status.go

@@ -9,4 +9,5 @@ status:
   class: exporter
   stability:
     beta: [traces, metrics, logs]
+    development: [profiles]
   distributions: [core, contrib, k8s]

exporter/nopexporter/metadata.yaml

@@ -10,16 +10,18 @@ import (
 	"go.opentelemetry.io/collector/consumer/consumertest"
 	"go.opentelemetry.io/collector/exporter"
 	"go.opentelemetry.io/collector/exporter/nopexporter/internal/metadata"
+	"go.opentelemetry.io/collector/exporter/xexporter"
 )
 
 // NewFactory returns an exporter.Factory that constructs nop exporters.
 func NewFactory() exporter.Factory {
-	return exporter.NewFactory(
+	return xexporter.NewFactory(
 		metadata.Type,
 		func() component.Config { return &struct{}{} },
-		exporter.WithTraces(createTraces, metadata.TracesStability),
-		exporter.WithMetrics(createMetrics, metadata.MetricsStability),
-		exporter.WithLogs(createLogs, metadata.LogsStability),
+		xexporter.WithTraces(createTraces, metadata.TracesStability),
+		xexporter.WithMetrics(createMetrics, metadata.MetricsStability),
+		xexporter.WithLogs(createLogs, metadata.LogsStability),
+		xexporter.WithProfiles(createProfiles, metadata.ProfilesStability),
 	)
 }
 
@@ -35,6 +37,10 @@ func createLogs(context.Context, exporter.Settings, component.Config) (exporter.
 	return nopInstance, nil
 }
 
+func createProfiles(context.Context, exporter.Settings, component.Config) (xexporter.Profiles, error) {
+	return nopInstance, nil
+}
+
 var nopInstance = &nop{
 	Consumer: consumertest.NewNop(),
 }

exporter/nopexporter/nop_exporter.go

@@ -13,8 +13,10 @@ import (
 	"go.opentelemetry.io/collector/component"
 	"go.opentelemetry.io/collector/component/componenttest"
 	"go.opentelemetry.io/collector/exporter/exportertest"
+	"go.opentelemetry.io/collector/exporter/xexporter"
 	"go.opentelemetry.io/collector/pdata/plog"
 	"go.opentelemetry.io/collector/pdata/pmetric"
+	"go.opentelemetry.io/collector/pdata/pprofile"
 	"go.opentelemetry.io/collector/pdata/ptrace"
 )
 
@@ -42,4 +44,10 @@ func TestNewNopFactory(t *testing.T) {
 	assert.NoError(t, logs.Start(context.Background(), componenttest.NewNopHost()))
 	assert.NoError(t, logs.ConsumeLogs(context.Background(), plog.NewLogs()))
 	assert.NoError(t, logs.Shutdown(context.Background()))
+
+	profiles, err := factory.(xexporter.Factory).CreateProfiles(context.Background(), exportertest.NewNopSettings(factory.Type()), cfg)
+	require.NoError(t, err)
+	assert.NoError(t, profiles.Start(context.Background(), componenttest.NewNopHost()))
+	assert.NoError(t, profiles.ConsumeProfiles(context.Background(), pprofile.NewProfiles()))
+	assert.NoError(t, profiles.Shutdown(context.Background()))
 }