refactor(otelcol): Seed factory defaults where seeding is a no-op (group 1 of 5)

internal/component/otelcol/auth/basic/basic.go

@@ -110,7 +110,7 @@ func (args Arguments) Validate() error {
 
 // ConvertClient implements auth.Arguments.
 func (args Arguments) ConvertClient() (otelcomponent.Config, error) {
-	c := &basicauthextension.Config{}
+	c := basicauthextension.NewFactory().CreateDefaultConfig().(*basicauthextension.Config)
 	// If the client config is specified, ignore the deprecated
 	// username and password attributes.
 	if args.ClientAuth != nil {
@@ -127,8 +127,10 @@ func (args Arguments) ConvertClient() (otelcomponent.Config, error) {
 
 // ConvertServer implements auth.Arguments.
 func (args Arguments) ConvertServer() (otelcomponent.Config, error) {
-	c := &basicauthextension.Config{
-		Htpasswd: &basicauthextension.HtpasswdSettings{},
+	c := basicauthextension.NewFactory().CreateDefaultConfig().(*basicauthextension.Config)
+	if c.Htpasswd == nil {
+		// The inline append below needs a non-nil Htpasswd.
+		c.Htpasswd = &basicauthextension.HtpasswdSettings{}
 	}
 	if args.Htpasswd != nil {
 		c.Htpasswd = args.Htpasswd.convert()

internal/component/otelcol/auth/headers/headers.go

@@ -74,9 +74,9 @@ func (args Arguments) ConvertClient() (otelcomponent.Config, error) {
 	}
 
 	// OtelExtensionConfig does not implement ServerAuth
-	return &headerssetterextension.Config{
-		HeadersConfig: upstreamHeaders,
-	}, nil
+	cfg := headerssetterextension.NewFactory().CreateDefaultConfig().(*headerssetterextension.Config)
+	cfg.HeadersConfig = upstreamHeaders
+	return cfg, nil
 }
 
 // ConvertServer returns nil since theheaders extension does not support server authentication.

internal/component/otelcol/auth/sigv4/sigv4.go

@@ -44,17 +44,16 @@ func (args *Arguments) SetToDefault() {
 
 // ConvertClient implements auth.Arguments.
 func (args Arguments) ConvertClient() (otelcomponent.Config, error) {
-	res := sigv4authextension.Config{
-		Region:     args.Region,
-		Service:    args.Service,
-		AssumeRole: *args.AssumeRole.Convert(),
-	}
+	res := sigv4authextension.NewFactory().CreateDefaultConfig().(*sigv4authextension.Config)
+	res.Region = args.Region
+	res.Service = args.Service
+	res.AssumeRole = *args.AssumeRole.Convert()
 	// sigv4authextension.Config has a private member called "credsProvider" which gets initialized when we call Validate().
 	// If we don't call validate, the unit tests for this component will fail.
 	if err := res.Validate(); err != nil {
 		return nil, err
 	}
-	return &res, nil
+	return res, nil
 }
 
 // ConvertServer returns nil since the sigv4 extension does not support server authentication.

internal/component/otelcol/processor/attributes/attributes.go

@@ -86,7 +86,7 @@ func (args Arguments) Convert() (otelcomponent.Config, error) {
 		}
 	}
 
-	var result attributesprocessor.Config
+	result := *attributesprocessor.NewFactory().CreateDefaultConfig().(*attributesprocessor.Config)
 	err := mapstructure.Decode(input, &result)
 
 	if err != nil {

internal/component/otelcol/processor/redaction/redaction.go

@@ -180,7 +180,7 @@ func (args Arguments) Convert() (otelcomponent.Config, error) {
 		input["db_sanitizer"] = args.DBSanitizer.convert()
 	}
 
-	var result redactionprocessor.Config
+	result := *redactionprocessor.NewFactory().CreateDefaultConfig().(*redactionprocessor.Config)
 	if err := mapstructure.Decode(input, &result); err != nil {
 		return nil, err
 	}

internal/component/otelcol/processor/span/span.go

@@ -101,7 +101,7 @@ func (args Arguments) Convert() (otelcomponent.Config, error) {
 		}
 	}
 
-	var result spanprocessor.Config
+	result := *spanprocessor.NewFactory().CreateDefaultConfig().(*spanprocessor.Config)
 	err := mapstructure.Decode(input, &result)
 
 	if err != nil {

internal/component/otelcol/receiver/fluentforward/fluentforward.go

@@ -61,9 +61,8 @@ type ConsumerArguments struct {
 }
 
 func (a Arguments) Convert() (collectorComponent.Config, error) {
-	cfg := &fluentforwardreceiver.Config{
-		ListenAddress: a.Endpoint,
-	}
+	cfg := fluentforwardreceiver.NewFactory().CreateDefaultConfig().(*fluentforwardreceiver.Config)
+	cfg.ListenAddress = a.Endpoint
 	return cfg, nil
 }