Move code to pkg

pkg/server/router/route_appender_factory.go

@@ -0,0 +1,38 @@
+package router
+
+import (
+	"context"
+
+	"github.com/containous/traefik/pkg/config/static"
+	"github.com/containous/traefik/pkg/provider/acme"
+	"github.com/containous/traefik/pkg/safe"
+	"github.com/containous/traefik/pkg/server/middleware"
+	"github.com/containous/traefik/pkg/types"
+)
+
+// NewRouteAppenderFactory Creates a new RouteAppenderFactory
+func NewRouteAppenderFactory(staticConfiguration static.Configuration, entryPointName string, acmeProvider *acme.Provider) *RouteAppenderFactory {
+	return &RouteAppenderFactory{
+		staticConfiguration: staticConfiguration,
+		entryPointName:      entryPointName,
+		acmeProvider:        acmeProvider,
+	}
+}
+
+// RouteAppenderFactory A factory of RouteAppender
+type RouteAppenderFactory struct {
+	staticConfiguration static.Configuration
+	entryPointName      string
+	acmeProvider        *acme.Provider
+}
+
+// NewAppender Creates a new RouteAppender
+func (r *RouteAppenderFactory) NewAppender(ctx context.Context, middlewaresBuilder *middleware.Builder, currentConfiguration *safe.Safe) types.RouteAppender {
+	aggregator := NewRouteAppenderAggregator(ctx, middlewaresBuilder, r.staticConfiguration, r.entryPointName, currentConfiguration)
+
+	if r.acmeProvider != nil && r.acmeProvider.HTTPChallenge != nil && r.acmeProvider.HTTPChallenge.EntryPoint == r.entryPointName {
+		aggregator.AddAppender(r.acmeProvider)
+	}
+
+	return aggregator
+}