Add profile support in receiver (#10690)

<!--Ex. Fixing a bug - Describe the bug and how this fixes the issue.
Ex. Adding a feature - Explain what this achieves.-->
#### Description

This follows
#10530,
and adds profiles support into receivers.

<!-- Issue number if applicable -->
#### Link to tracking issue
See #10375

cc @mx-psi

---------

Co-authored-by: Pablo Baeyens <pablo.baeyens@datadoghq.com>

.chloggen/profiles-receiver.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: new_component
+
+# The name of the component, or a single word describing the area of concern, (e.g. otlpreceiver)
+component: receiver/receiverprofiles
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Allow handling profiles in receiver.
+
+# One or more tracking issues or pull requests related to the change
+issues: [10690]
+
+# (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: [api]

receiver/go.mod

@@ -9,6 +9,7 @@ require (
 	go.opentelemetry.io/collector/component v0.106.1
 	go.opentelemetry.io/collector/config/configtelemetry v0.106.1
 	go.opentelemetry.io/collector/consumer v0.106.1
+	go.opentelemetry.io/collector/consumer/consumerprofiles v0.106.1
 	go.opentelemetry.io/collector/consumer/consumertest v0.106.1
 	go.opentelemetry.io/collector/pdata v1.12.0
 	go.opentelemetry.io/otel v1.28.0
@@ -37,7 +38,6 @@ require (
 	github.com/prometheus/client_model v0.6.1 // indirect
 	github.com/prometheus/common v0.55.0 // indirect
 	github.com/prometheus/procfs v0.15.1 // indirect
-	go.opentelemetry.io/collector/consumer/consumerprofiles v0.106.1 // indirect
 	go.opentelemetry.io/collector/pdata/pprofile v0.106.1 // indirect
 	go.opentelemetry.io/otel/exporters/prometheus v0.50.0 // indirect
 	golang.org/x/net v0.26.0 // indirect

receiver/internal/factory.go

@@ -8,6 +8,7 @@ import (
 
 	"go.opentelemetry.io/collector/component"
 	"go.opentelemetry.io/collector/consumer"
+	"go.opentelemetry.io/collector/consumer/consumerprofiles"
 )
 
 // Factory is a factory interface for receivers.
@@ -44,6 +45,14 @@ type Factory interface {
 	// LogsReceiverStability gets the stability level of the LogsReceiver.
 	LogsReceiverStability() component.StabilityLevel
 
+	// CreateProfilesReceiver creates a ProfilesReceiver based on this config.
+	// If the receiver type does not support tracing or if the config is not valid
+	// an error will be returned instead. `nextConsumer` is never nil.
+	CreateProfilesReceiver(ctx context.Context, set Settings, cfg component.Config, nextConsumer consumerprofiles.Profiles) (Profiles, error)
+
+	// ProfilesReceiverStability gets the stability level of the ProfilesReceiver.
+	ProfilesReceiverStability() component.StabilityLevel
+
 	unexportedFactoryFunc()
 }
 
@@ -107,6 +116,21 @@ func (f CreateLogsFunc) CreateLogsReceiver(
 	return f(ctx, set, cfg, nextConsumer)
 }
 
+// CreateProfilesFunc is the equivalent of Factory.CreateProfiles.
+type CreateProfilesFunc func(context.Context, Settings, component.Config, consumerprofiles.Profiles) (Profiles, error)
+
+// CreateProfilesReceiver implements Factory.CreateProfilesReceiver().
+func (f CreateProfilesFunc) CreateProfilesReceiver(
+	ctx context.Context,
+	set Settings,
+	cfg component.Config,
+	nextConsumer consumerprofiles.Profiles) (Profiles, error) {
+	if f == nil {
+		return nil, component.ErrDataTypeIsNotSupported
+	}
+	return f(ctx, set, cfg, nextConsumer)
+}
+
 type factory struct {
 	cfgType component.Type
 	component.CreateDefaultConfigFunc
@@ -116,6 +140,8 @@ type factory struct {
 	metricsStabilityLevel component.StabilityLevel
 	CreateLogsFunc
 	logsStabilityLevel component.StabilityLevel
+	CreateProfilesFunc
+	profilesStabilityLevel component.StabilityLevel
 }
 
 func (f *factory) Type() component.Type {
@@ -136,6 +162,10 @@ func (f *factory) LogsReceiverStability() component.StabilityLevel {
 	return f.logsStabilityLevel
 }
 
+func (f *factory) ProfilesReceiverStability() component.StabilityLevel {
+	return f.profilesStabilityLevel
+}
+
 // WithTraces overrides the default "error not supported" implementation for CreateTracesReceiver and the default "undefined" stability level.
 func WithTraces(createTracesReceiver CreateTracesFunc, sl component.StabilityLevel) FactoryOption {
 	return factoryOptionFunc(func(o *factory) {
@@ -160,6 +190,14 @@ func WithLogs(createLogsReceiver CreateLogsFunc, sl component.StabilityLevel) Fa
 	})
 }
 
+// WithProfiles overrides the default "error not supported" implementation for CreateProfilesReceiver and the default "undefined" stability level.
+func WithProfiles(createProfilesReceiver CreateProfilesFunc, sl component.StabilityLevel) FactoryOption {
+	return factoryOptionFunc(func(o *factory) {
+		o.profilesStabilityLevel = sl
+		o.CreateProfilesFunc = createProfilesReceiver
+	})
+}
+
 // NewFactory returns a Factory.
 func NewFactory(cfgType component.Type, createDefaultConfig component.CreateDefaultConfigFunc, options ...FactoryOption) Factory {
 	f := &factory{

receiver/internal/profiles.go

@@ -0,0 +1,15 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package internal // import "go.opentelemetry.io/collector/receiver/internal"
+
+import "go.opentelemetry.io/collector/component"
+
+// Profiless receiver receives profiles.
+// Its purpose is to translate data from any format to the collector's internal profile format.
+// ProfilesReceiver feeds a consumer.Profiles with data.
+//
+// For example, it could be a pprof data source which translates pprof profiles into pprofile.Profiles.
+type Profiles interface {
+	component.Component
+}

receiver/receiverprofiles/Makefile

@@ -0,0 +1 @@
+include ../../Makefile.Common

receiver/receiverprofiles/go.mod

@@ -0,0 +1,62 @@
+module go.opentelemetry.io/collector/receiver/receiverprofiles
+
+go 1.21.0
+
+require (
+	github.com/stretchr/testify v1.9.0
+	go.opentelemetry.io/collector/component v0.106.1
+	go.opentelemetry.io/collector/consumer/consumerprofiles v0.106.1
+	go.opentelemetry.io/collector/consumer/consumertest v0.106.1
+	go.opentelemetry.io/collector/receiver v0.106.1
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	go.opentelemetry.io/collector/config/configtelemetry v0.106.1 // indirect
+	go.opentelemetry.io/collector/consumer v0.106.1 // indirect
+	go.opentelemetry.io/collector/pdata v1.12.0 // indirect
+	go.opentelemetry.io/collector/pdata/pprofile v0.106.1 // indirect
+	go.opentelemetry.io/otel v1.28.0 // indirect
+	go.opentelemetry.io/otel/metric v1.28.0 // indirect
+	go.opentelemetry.io/otel/trace v1.28.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.27.0 // indirect
+	golang.org/x/net v0.26.0 // indirect
+	golang.org/x/sys v0.21.0 // indirect
+	golang.org/x/text v0.16.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240701130421-f6361c86f094 // indirect
+	google.golang.org/grpc v1.65.0 // indirect
+	google.golang.org/protobuf v1.34.2 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
+
+replace go.opentelemetry.io/collector/receiver => ../
+
+replace go.opentelemetry.io/collector/confmap => ../../confmap
+
+replace go.opentelemetry.io/collector/consumer => ../../consumer
+
+replace go.opentelemetry.io/collector/component => ../../component
+
+replace go.opentelemetry.io/collector/consumer/consumerprofiles => ../../consumer/consumerprofiles
+
+replace go.opentelemetry.io/collector/config/configtelemetry => ../../config/configtelemetry
+
+replace go.opentelemetry.io/collector => ../..
+
+replace go.opentelemetry.io/collector/internal/globalgates => ../../internal/globalgates
+
+replace go.opentelemetry.io/collector/pdata/testdata => ../../pdata/testdata
+
+replace go.opentelemetry.io/collector/featuregate => ../../featuregate
+
+replace go.opentelemetry.io/collector/pdata/pprofile => ../../pdata/pprofile
+
+replace go.opentelemetry.io/collector/pdata => ../../pdata
+
+replace go.opentelemetry.io/collector/consumer/consumertest => ../../consumer/consumertest

receiver/receiverprofiles/profiles.go

@@ -0,0 +1,25 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package receiverprofiles // import "go.opentelemetry.io/collector/receiver/receiverprofiles"
+
+import (
+	"go.opentelemetry.io/collector/component"
+	"go.opentelemetry.io/collector/receiver"
+	"go.opentelemetry.io/collector/receiver/internal"
+)
+
+// Profiles receiver receives profiles.
+// Its purpose is to translate data from any format to the collector's internal profile format.
+// ProfilessReceiver feeds a consumerprofiles.Profiles with data.
+//
+// For example, it could be a pprof data source which translates pprof profiles into pprofile.Profiles.
+type Profiles = internal.Profiles
+
+// CreateProfilesFunc is the equivalent of Factory.CreateProfiles.
+type CreateProfilesFunc = internal.CreateProfilesFunc
+
+// WithProfiles overrides the default "error not supported" implementation for CreateProfilesReceiver and the default "undefined" stability level.
+func WithProfiles(createProfilesReceiver CreateProfilesFunc, sl component.StabilityLevel) receiver.FactoryOption {
+	return internal.WithProfiles(createProfilesReceiver, sl)
+}