| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to You 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 main |
| |
| import ( |
| "errors" |
| "fmt" |
| "github.com/apache/incubator-eventmesh/eventmesh-server-go/config" |
| "github.com/apache/incubator-eventmesh/eventmesh-server-go/log" |
| "github.com/apache/incubator-eventmesh/eventmesh-server-go/pkg/naming/registry" |
| "github.com/apache/incubator-eventmesh/eventmesh-server-go/plugin" |
| _ "github.com/apache/incubator-eventmesh/eventmesh-server-go/plugin/database/mysql" |
| _ "github.com/apache/incubator-eventmesh/eventmesh-server-go/plugin/naming/nacos/registry" |
| _ "github.com/apache/incubator-eventmesh/eventmesh-server-go/plugin/naming/nacos/selector" |
| "github.com/apache/incubator-eventmesh/eventmesh-workflow-go/api" |
| "github.com/apache/incubator-eventmesh/eventmesh-workflow-go/api/proto" |
| pconfig "github.com/apache/incubator-eventmesh/eventmesh-workflow-go/config" |
| "github.com/apache/incubator-eventmesh/eventmesh-workflow-go/internal/constants" |
| "github.com/apache/incubator-eventmesh/eventmesh-workflow-go/internal/dal" |
| "github.com/apache/incubator-eventmesh/eventmesh-workflow-go/internal/queue" |
| "github.com/apache/incubator-eventmesh/eventmesh-workflow-go/internal/schedule" |
| "github.com/apache/incubator-eventmesh/eventmesh-workflow-go/internal/util" |
| "google.golang.org/grpc" |
| "net" |
| ) |
| |
| type Server struct { |
| server *grpc.Server |
| schedule schedule.Scheduler |
| queue queue.ObserveQueue |
| } |
| |
| func main() { |
| s, err := initServer() |
| if err != nil { |
| log.Fatal("flow new server fail: " + err.Error()) |
| } |
| router(s) |
| if err = s.run(); err != nil { |
| log.Fatal("run server fail: " + err.Error()) |
| } |
| } |
| |
| func router(s *Server) { |
| proto.RegisterWorkflowServer(s.server, api.NewWorkflowService()) |
| } |
| |
| func initServer() (*Server, error) { |
| plugin.Register(constants.LogSchedule, log.DefaultLogFactory) |
| plugin.Register(constants.LogQueue, log.DefaultLogFactory) |
| |
| var s Server |
| if err := s.setupConfig(); err != nil { |
| return nil, err |
| } |
| reg := registry.Get(config.GlobalConfig().Server.Name) |
| if reg == nil { |
| return nil, errors.New("service name=" + config.GlobalConfig().Server.Name + " not find registry") |
| } |
| if err := reg.Register(config.GlobalConfig().Server.Name); err != nil { |
| return nil, err |
| } |
| scheduler, err := schedule.NewScheduler() |
| if err != nil { |
| return nil, err |
| } |
| s.schedule = scheduler |
| if err = dal.Open(); err != nil { |
| return nil, err |
| } |
| s.queue = queue.GetQueue(config.GlobalConfig().Flow.Queue.Store) |
| |
| s.server = grpc.NewServer() |
| return &s, nil |
| } |
| |
| func (s *Server) run() error { |
| s.queue.Observe() |
| s.schedule.Run() |
| |
| l, err := s.listen() |
| if err != nil { |
| return err |
| } |
| return s.server.Serve(l) |
| } |
| |
| func (s *Server) setupConfig() error { |
| config.ServerConfigPath = "./configs/workflow.yaml" |
| // compatible local environment |
| if !util.Exists(config.ServerConfigPath) { |
| config.ServerConfigPath = "../configs/workflow.yaml" |
| } |
| // compatible deploy environment |
| if !util.Exists(config.ServerConfigPath) { |
| config.ServerConfigPath = "../conf/workflow.yaml" |
| } |
| cfg, err := config.LoadConfig(config.ServerConfigPath) |
| if err != nil { |
| return err |
| } |
| config.SetGlobalConfig(cfg) |
| if err := config.Setup(cfg); err != nil { |
| return err |
| } |
| return pconfig.Setup(config.ServerConfigPath) |
| } |
| |
| func (s *Server) listen() (net.Listener, error) { |
| listener, err := net.Listen("tcp", fmt.Sprintf(":%d", config.GlobalConfig().Server.Port)) |
| if err != nil { |
| return nil, err |
| } |
| return listener, nil |
| } |