controller/handlers/composite.go

//  Copyright (c) 2017-2018 Uber Technologies, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package handlers

import (
	"github.com/uber/aresdb/utils"
	"net/http"

	"github.com/gorilla/handlers"
	"github.com/gorilla/mux"
	"go.uber.org/config"
	"go.uber.org/fx"
	"go.uber.org/zap"
)

// ServerParams defines params needed to init server
type ServerParams struct {
	fx.In

	Config            config.Provider
	Logger            *zap.SugaredLogger
	HealthHandler     HealthHandler
	ConfigHandler     ConfigHandler
	SchemaHandler     SchemaHandler
	NamespaceHandler  NamespaceHandler
	MembershipHandler MembershipHandler
	AssignmentHandler AssignmentHandler
	PlacementHandler  PlacementHandler
	UIHandler		  UIHandler
	WrapperProvider   utils.MetricsLoggingMiddleWareProvider
}

// NewCompositeHandler is the provider for http server
func NewCompositeHandler(p ServerParams) http.Handler {
	router := mux.NewRouter()

	p.HealthHandler.Register(router)
	p.ConfigHandler.Register(router.PathPrefix("/config").Subrouter(), p.WrapperProvider.WithMetrics, p.WrapperProvider.WithLogging)
	p.SchemaHandler.Register(router.PathPrefix("/schema").Subrouter(), p.WrapperProvider.WithMetrics, p.WrapperProvider.WithLogging)
	p.MembershipHandler.Register(router.PathPrefix("/membership").Subrouter(), p.WrapperProvider.WithMetrics, p.WrapperProvider.WithLogging)
	p.AssignmentHandler.Register(router.PathPrefix("/assignment").Subrouter(), p.WrapperProvider.WithMetrics, p.WrapperProvider.WithLogging)
	p.PlacementHandler.Register(router.PathPrefix("/placement").Subrouter(), p.WrapperProvider.WithMetrics, p.WrapperProvider.WithLogging)
	p.NamespaceHandler.Register(router, p.WrapperProvider.WithMetrics, p.WrapperProvider.WithLogging)
	p.UIHandler.Register(router)

	return handlers.CORS()(router)
}