[mdatagen] add LeveledMeter method

This will use the LeveledMeterProvider in TelemetrySettings.

Split from open-telemetry#10912, follows open-telemetry#10931

Signed-off-by: Alex Boten <223565+codeboten@users.noreply.github.com>

.chloggen/codeboten_leveled-meter-split-3.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. otlpreceiver)
+component: mdatagen
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: "Add `LeveledMeter` method to mdatagen"
+
+# One or more tracking issues or pull requests related to the change
+issues: []
+
+# (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: []

cmd/mdatagen/main_test.go

@@ -573,6 +573,10 @@ func Meter(settings component.TelemetrySettings) metric.Meter {
 	return settings.MeterProvider.Meter("")
 }
 
+func LeveledMeter(settings component.TelemetrySettings, level configtelemetry.Level) metric.Meter {
+	return settings.LeveledMeterProvider(level).Meter("")
+}
+
 func Tracer(settings component.TelemetrySettings) trace.Tracer {
 	return settings.TracerProvider.Tracer("")
 }
@@ -607,6 +611,10 @@ func Meter(settings component.TelemetrySettings) metric.Meter {
 	return settings.MeterProvider.Meter("")
 }
 
+func LeveledMeter(settings component.TelemetrySettings, level configtelemetry.Level) metric.Meter {
+	return settings.LeveledMeterProvider(level).Meter("")
+}
+
 func Tracer(settings component.TelemetrySettings) trace.Tracer {
 	return settings.TracerProvider.Tracer("")
 }

cmd/mdatagen/templates/component_telemetry_test.go.tmpl

@@ -13,6 +13,7 @@ import (
 
 	"go.opentelemetry.io/collector/component"
 	{{- if or isConnector isExporter isExtension isProcessor isReceiver }}
+	"go.opentelemetry.io/collector/config/configtelemetry"
 	"go.opentelemetry.io/collector/{{ .Status.Class }}"
 	"go.opentelemetry.io/collector/{{ .Status.Class }}/{{ .Status.Class }}test"
 	{{- end }}
@@ -27,6 +28,9 @@ type componentTestTelemetry struct {
 func (tt *componentTestTelemetry) NewSettings() {{ .Status.Class }}.Settings {
 	settings := {{ .Status.Class }}test.NewNopSettings()
 	settings.MeterProvider = tt.meterProvider
+	settings.LeveledMeterProvider = func(_ configtelemetry.Level) metric.MeterProvider {
+		return tt.meterProvider
+	}
 	settings.ID = component.NewID(component.MustNewType("{{ .Type }}"))
 
 	return settings

cmd/mdatagen/templates/telemetry.go.tmpl

@@ -25,6 +25,10 @@ func Meter(settings component.TelemetrySettings) metric.Meter {
 	return settings.MeterProvider.Meter("{{ .ScopeName }}")
 }
 
+func LeveledMeter(settings component.TelemetrySettings, level configtelemetry.Level) metric.Meter {
+	return settings.LeveledMeterProvider(level).Meter("{{ .ScopeName }}")
+}
+
 func Tracer(settings component.TelemetrySettings) trace.Tracer {
 	return settings.TracerProvider.Tracer("{{ .ScopeName }}")
 }

cmd/mdatagen/templates/telemetry_test.go.tmpl

@@ -43,6 +43,9 @@ func (m mockTracerProvider) Tracer(name string, opts ...trace.TracerOption) trac
 
 func TestProviders(t *testing.T) {
 	set := component.TelemetrySettings{
+		LeveledMeterProvider: func(_ configtelemetry.Level) metric.MeterProvider {
+			return mockMeterProvider{}
+		},
 		MeterProvider: mockMeterProvider{},
 		TracerProvider: mockTracerProvider{},
 	}
@@ -65,6 +68,9 @@ func TestProviders(t *testing.T) {
 
 func TestNewTelemetryBuilder(t *testing.T) {
 	set := component.TelemetrySettings{
+		LeveledMeterProvider: func(_ configtelemetry.Level) metric.MeterProvider {
+			return mockMeterProvider{}
+		},
 		MeterProvider: mockMeterProvider{},
 		TracerProvider: mockTracerProvider{},
 	}