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broker.go
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broker.go
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// Package broker is the micro broker
package broker
import (
"time"
"github.com/micro/cli/v2"
"github.com/dreamlu/go-micro/v2"
pb "github.com/dreamlu/go-micro/v2/broker/service/proto"
log "github.com/dreamlu/go-micro/v2/logger"
"github.com/dreamlu/micro/v2/broker/handler"
)
var (
// Name of the broker
Name = "go.micro.broker"
// The address of the broker
Address = ":8001"
)
func run(ctx *cli.Context, srvOpts ...micro.Option) {
log.Init(log.WithFields(map[string]interface{}{"service": "broker"}))
if len(ctx.String("server_name")) > 0 {
Name = ctx.String("server_name")
}
if len(ctx.String("address")) > 0 {
Address = ctx.String("address")
}
// Init plugins
for _, p := range Plugins() {
p.Init(ctx)
}
// service opts
srvOpts = append(srvOpts, micro.Name(Name))
if i := time.Duration(ctx.Int("register_ttl")); i > 0 {
srvOpts = append(srvOpts, micro.RegisterTTL(i*time.Second))
}
if i := time.Duration(ctx.Int("register_interval")); i > 0 {
srvOpts = append(srvOpts, micro.RegisterInterval(i*time.Second))
}
// set address
if len(Address) > 0 {
srvOpts = append(srvOpts, micro.Address(Address))
}
// new service
service := micro.NewService(srvOpts...)
// connect to the broker
service.Options().Broker.Connect()
// register the broker handler
pb.RegisterBrokerHandler(service.Server(), &handler.Broker{
// using the mdns broker
Broker: service.Options().Broker,
})
// run the service
service.Run()
}
func Commands(options ...micro.Option) []*cli.Command {
command := &cli.Command{
Name: "broker",
Usage: "Run the message broker",
Flags: []cli.Flag{
&cli.StringFlag{
Name: "address",
Usage: "Set the broker http address e.g 0.0.0.0:8001",
EnvVars: []string{"MICRO_SERVER_ADDRESS"},
},
},
Action: func(ctx *cli.Context) error {
run(ctx, options...)
return nil
},
}
for _, p := range Plugins() {
if cmds := p.Commands(); len(cmds) > 0 {
command.Subcommands = append(command.Subcommands, cmds...)
}
if flags := p.Flags(); len(flags) > 0 {
command.Flags = append(command.Flags, flags...)
}
}
return []*cli.Command{command}
}