/
api.go
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/
api.go
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// Copyright (C) 2014-2018 Goodrain Co., Ltd.
// RAINBOND, Application Management Platform
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package api
import (
"fmt"
"net"
"net/http"
"time"
"github.com/goodrain/rainbond/cmd/mq/option"
"github.com/goodrain/rainbond/mq/api/controller"
"github.com/goodrain/rainbond/mq/api/mq"
"github.com/goodrain/rainbond/mq/monitor"
"google.golang.org/grpc"
"google.golang.org/grpc/reflection"
"golang.org/x/net/context"
_ "net/http/pprof"
"github.com/Sirupsen/logrus"
restful "github.com/emicklei/go-restful"
swagger "github.com/emicklei/go-restful-swagger12"
grpcserver "github.com/goodrain/rainbond/mq/api/grpc/server"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/prometheus/common/version"
)
type Manager struct {
container *restful.Container
ctx context.Context
cancel context.CancelFunc
conf option.Config
server Server
actionMQ mq.ActionMQ
}
type Server interface {
Server() error
Close() error
}
type httpServer struct {
server *http.Server
}
func (h *httpServer) Server() error {
if err := h.server.ListenAndServe(); err != nil {
logrus.Error("entrance api http listen error.", err.Error())
return err
}
return nil
}
func (h *httpServer) Close() error {
if h.server != nil {
ctx, _ := context.WithTimeout(context.Background(), time.Second*5)
return h.server.Shutdown(ctx)
}
return nil
}
type grpcServer struct {
server *grpc.Server
lis net.Listener
}
func (h *grpcServer) Server() error {
if err := h.server.Serve(h.lis); err != nil {
logrus.Error("entrance api grpc listen error.", err.Error())
return err
}
return nil
}
func (h *grpcServer) Close() error {
return h.lis.Close()
}
//NewManager api manager
func NewManager(c option.Config) (*Manager, error) {
ctx, cancel := context.WithCancel(context.Background())
actionMQ := mq.NewActionMQ(ctx, c)
manager := &Manager{
ctx: ctx,
cancel: cancel,
conf: c,
actionMQ: actionMQ,
}
go func() {
if err := http.ListenAndServe(":6301", nil); err != nil {
logrus.Error("mq pprof listen error.", err.Error())
}
}()
if c.RunMode == "http" {
wsContainer := restful.NewContainer()
server := &http.Server{Addr: fmt.Sprintf(":%d", c.APIPort), Handler: wsContainer}
controller.Register(wsContainer, actionMQ)
manager.container = wsContainer
manager.server = &httpServer{server}
manager.doc()
logrus.Info("mq server api run with http")
} else {
lis, err := net.Listen("tcp", fmt.Sprintf(":%d", c.APIPort))
if err != nil {
logrus.Errorf("failed to listen: %v", err)
return nil, err
}
s := grpc.NewServer()
grpcserver.RegisterServer(s, actionMQ)
// Register reflection service on gRPC server.
reflection.Register(s)
manager.server = &grpcServer{
server: s,
lis: lis,
}
logrus.Info("mq server api run with gRPC")
}
return manager, nil
}
//Start 启动
func (m *Manager) Start(errChan chan error) {
logrus.Infof("api server start listening on 0.0.0.0:%d", m.conf.APIPort)
err := m.actionMQ.Start()
if err != nil {
errChan <- err
}
//m.prometheus()
go func() {
if err := m.server.Server(); err != nil {
logrus.Error("mq api listen error.", err.Error())
errChan <- err
}
}()
}
func (m *Manager) doc() {
// Optionally, you can install the Swagger Service which provides a nice Web UI on your REST API
// You need to download the Swagger HTML5 assets and change the FilePath location in the config below.
// Open http://localhost:8080/apidocs and enter http://localhost:8080/swagger.json in the api input field.
config := swagger.Config{
WebServices: m.container.RegisteredWebServices(), // you control what services are visible
ApiPath: "/swagger.json",
// Optionally, specify where the UI is located
SwaggerPath: "/apidocs/",
Info: swagger.Info{
Title: "goodrain mq api doc.",
},
ApiVersion: "1.0",
SwaggerFilePath: "./dist"}
swagger.RegisterSwaggerService(config, m.container)
}
//Stop 停止
func (m *Manager) Stop() error {
logrus.Info("api server is stoping.")
m.cancel()
//m.server.Close()
return m.actionMQ.Stop()
}
func (m *Manager) prometheus() {
prometheus.MustRegister(version.NewCollector("acp_entrance"))
exporter := monitor.NewExporter()
prometheus.MustRegister(exporter)
m.container.Handle(m.conf.PrometheusMetricPath, promhttp.Handler())
}