micro/options.go

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package micro
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import (
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"time"
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"github.com/micro/cli"
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"github.com/micro/go-micro/broker"
"github.com/micro/go-micro/client"
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"github.com/micro/go-micro/cmd"
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"github.com/micro/go-micro/registry"
"github.com/micro/go-micro/server"
"github.com/micro/go-micro/transport"
"golang.org/x/net/context"
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)
type Options struct {
Broker broker.Broker
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Cmd cmd.Cmd
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Client client.Client
Server server.Server
Registry registry.Registry
Transport transport.Transport
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// Register loop interval
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RegisterInterval time.Duration
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// Before and After funcs
BeforeStart []func() error
AfterStop []func() error
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// Other options for implementations of the interface
// can be stored in a context
Context context.Context
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}
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func newOptions(opts ...Option) Options {
opt := Options{
Broker: broker.DefaultBroker,
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Cmd: cmd.DefaultCmd,
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Client: client.DefaultClient,
Server: server.DefaultServer,
Registry: registry.DefaultRegistry,
Transport: transport.DefaultTransport,
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}
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for _, o := range opts {
o(&opt)
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}
return opt
}
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func Broker(b broker.Broker) Option {
return func(o *Options) {
o.Broker = b
}
}
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func Cmd(c cmd.Cmd) Option {
return func(o *Options) {
o.Cmd = c
}
}
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func Client(c client.Client) Option {
return func(o *Options) {
o.Client = c
}
}
func Server(s server.Server) Option {
return func(o *Options) {
o.Server = s
}
}
func Registry(r registry.Registry) Option {
return func(o *Options) {
o.Registry = r
}
}
func Transport(t transport.Transport) Option {
return func(o *Options) {
o.Transport = t
}
}
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// Convenience options
// Name of the service
func Name(n string) Option {
return func(o *Options) {
o.Server.Init(server.Name(n))
}
}
// Version of the service
func Version(v string) Option {
return func(o *Options) {
o.Server.Init(server.Version(v))
}
}
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// Metadata associated with the service
func Metadata(md map[string]string) Option {
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return func(o *Options) {
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o.Server.Init(server.Metadata(md))
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}
}
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func Flags(flags ...cli.Flag) Option {
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return func(o *Options) {
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o.Cmd.App().Flags = append(o.Cmd.App().Flags, flags...)
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}
}
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func Action(a func(*cli.Context)) Option {
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return func(o *Options) {
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o.Cmd.App().Action = a
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}
}
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func RegisterTTL(t time.Duration) Option {
return func(o *Options) {
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o.Server.Init(server.RegisterTTL(t))
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}
}
func RegisterInterval(t time.Duration) Option {
return func(o *Options) {
o.RegisterInterval = t
}
}
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// Before and Afters
func BeforeStart(fn func() error) Option {
return func(o *Options) {
o.BeforeStart = append(o.BeforeStart, fn)
}
}
func AfterStop(fn func() error) Option {
return func(o *Options) {
o.AfterStop = append(o.AfterStop, fn)
}
}