From 81ddf1e4d89dd936e7dfe835262eb2ae3ccc1ec0 Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Wed, 6 Dec 2017 16:43:26 +0000
Subject: [PATCH] Convert publicroomsapi to using base component

---
 .../dendrite-public-rooms-api-server/main.go  | 74 ++-----------------
 .../dendrite/publicroomsapi/publicroomsapi.go | 37 ++++++++++
 2 files changed, 44 insertions(+), 67 deletions(-)
 create mode 100644 src/github.com/matrix-org/dendrite/publicroomsapi/publicroomsapi.go

diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-public-rooms-api-server/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-public-rooms-api-server/main.go
index 24aae0da..afea01bf 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-public-rooms-api-server/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-public-rooms-api-server/main.go
@@ -15,77 +15,17 @@
 package main
 
 import (
-	"flag"
-	"net/http"
-	"os"
-
-	"github.com/gorilla/mux"
-	"github.com/matrix-org/dendrite/clientapi/auth/storage/devices"
-	"github.com/matrix-org/dendrite/common"
-	"github.com/matrix-org/dendrite/common/config"
-	"github.com/matrix-org/dendrite/publicroomsapi/consumers"
-	"github.com/matrix-org/dendrite/publicroomsapi/routing"
-	"github.com/matrix-org/dendrite/publicroomsapi/storage"
-	"github.com/matrix-org/dendrite/roomserver/api"
-
-	log "github.com/sirupsen/logrus"
-	sarama "gopkg.in/Shopify/sarama.v1"
+	"github.com/matrix-org/dendrite/common/basecomponent"
+	"github.com/matrix-org/dendrite/publicroomsapi"
 )
 
-var configPath = flag.String("config", "dendrite.yaml", "The path to the config file. For more information, see the config file in this repository.")
-
 func main() {
-	common.SetupLogging(os.Getenv("LOG_DIR"))
+	base := basecomponent.NewBaseDendrite("PublicRoomsAPI")
+	defer base.Close() // nolint: errcheck
 
-	flag.Parse()
+	deviceDB := base.CreateDeviceDB()
 
-	if *configPath == "" {
-		log.Fatal("--config must be supplied")
-	}
-	cfg, err := config.Load(*configPath)
-	if err != nil {
-		log.Fatalf("Invalid config file: %s", err)
-	}
+	publicroomsapi.SetupPublicRoomsAPIComponent(base, deviceDB)
 
-	closer, err := cfg.SetupTracing("DendritePublicRoomsAPI")
-	if err != nil {
-		log.WithError(err).Fatalf("Failed to start tracer")
-	}
-	defer closer.Close() // nolint: errcheck
-
-	queryAPI := api.NewRoomserverQueryAPIHTTP(cfg.RoomServerURL(), nil)
-
-	db, err := storage.NewPublicRoomsServerDatabase(string(cfg.Database.PublicRoomsAPI))
-	if err != nil {
-		log.Panicf("startup: failed to create public rooms server database with data source %s : %s", cfg.Database.PublicRoomsAPI, err)
-	}
-
-	deviceDB, err := devices.NewDatabase(string(cfg.Database.Device), cfg.Matrix.ServerName)
-	if err != nil {
-		log.Panicf("startup: failed to create device database with data source %s : %s", cfg.Database.Device, err)
-	}
-
-	kafkaConsumer, err := sarama.NewConsumer(cfg.Kafka.Addresses, nil)
-	if err != nil {
-		log.WithFields(log.Fields{
-			log.ErrorKey: err,
-			"addresses":  cfg.Kafka.Addresses,
-		}).Panic("Failed to setup kafka consumers")
-	}
-
-	roomConsumer := consumers.NewOutputRoomEventConsumer(cfg, kafkaConsumer, db, queryAPI)
-	if err != nil {
-		log.Panicf("startup: failed to create room server consumer: %s", err)
-	}
-	if err = roomConsumer.Start(); err != nil {
-		log.Panicf("startup: failed to start room server consumer: %s", err)
-	}
-
-	log.Info("Starting public rooms server on ", cfg.Listen.PublicRoomsAPI)
-
-	api := mux.NewRouter()
-	routing.Setup(api, deviceDB, db)
-	common.SetupHTTPAPI(http.DefaultServeMux, common.WrapHandlerInCORS(api))
-
-	log.Fatal(http.ListenAndServe(string(cfg.Listen.PublicRoomsAPI), nil))
+	base.SetupAndServeHTTP(string(base.Cfg.Listen.PublicRoomsAPI))
 }
diff --git a/src/github.com/matrix-org/dendrite/publicroomsapi/publicroomsapi.go b/src/github.com/matrix-org/dendrite/publicroomsapi/publicroomsapi.go
new file mode 100644
index 00000000..cf9ac00e
--- /dev/null
+++ b/src/github.com/matrix-org/dendrite/publicroomsapi/publicroomsapi.go
@@ -0,0 +1,37 @@
+// Copyright 2017 Vector Creations Ltd
+//
+// 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 publicroomsapi
+
+import (
+	"github.com/matrix-org/dendrite/clientapi/auth/storage/devices"
+	"github.com/matrix-org/dendrite/common/basecomponent"
+	"github.com/matrix-org/dendrite/publicroomsapi/routing"
+	"github.com/matrix-org/dendrite/publicroomsapi/storage"
+	"github.com/sirupsen/logrus"
+)
+
+// SetupPublicRoomsAPIComponent sets up and registers HTTP handlers for the PublicRoomsAPI
+// component.
+func SetupPublicRoomsAPIComponent(
+	base *basecomponent.BaseDendrite,
+	deviceDB *devices.Database,
+) {
+	publicRoomsDB, err := storage.NewPublicRoomsServerDatabase(string(base.Cfg.Database.PublicRoomsAPI))
+	if err != nil {
+		logrus.WithError(err).Panicf("failed to connect to public rooms db")
+	}
+
+	routing.Setup(base.APIMux, deviceDB, publicRoomsDB)
+}