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Add Init to all things, use init in cmd package to initialise

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This commit is contained in:
Asim Aslam 2018-08-08 18:57:29 +01:00
parent 68f5e71153
commit 9968c7d007
8 changed files with 118 additions and 76 deletions
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67
cmd/cmd.go
View File

@ -262,48 +262,40 @@ func (c *cmd) Before(ctx *cli.Context) error {
// Set the client
if name := ctx.String("client"); len(name) > 0 {
if cl, ok := c.opts.Clients[name]; ok {
// only change if we have the client and type differs
if cl, ok := c.opts.Clients[name]; ok && (*c.opts.Client).String() != name {
*c.opts.Client = cl()
}
}
// Set the server
if name := ctx.String("server"); len(name) > 0 {
if s, ok := c.opts.Servers[name]; ok {
// only change if we have the server and type differs
if s, ok := c.opts.Servers[name]; ok && (*c.opts.Server).String() != name {
*c.opts.Server = s()
}
}
// Set the broker
if name := ctx.String("broker"); len(name) > 0 || len(ctx.String("broker_address")) > 0 {
if len(name) == 0 {
name = defaultBroker
}
if b, ok := c.opts.Brokers[name]; ok {
n := b(broker.Addrs(strings.Split(ctx.String("broker_address"), ",")...))
*c.opts.Broker = n
} else {
if name := ctx.String("broker"); len(name) > 0 && (*c.opts.Broker).String() != name {
b, ok := c.opts.Brokers[name]
if !ok {
return fmt.Errorf("Broker %s not found", name)
}
*c.opts.Broker = b()
serverOpts = append(serverOpts, server.Broker(*c.opts.Broker))
clientOpts = append(clientOpts, client.Broker(*c.opts.Broker))
}
// Set the registry
if name := ctx.String("registry"); len(name) > 0 || len(ctx.String("registry_address")) > 0 {
if len(name) == 0 {
name = defaultRegistry
}
if r, ok := c.opts.Registries[name]; ok {
n := r(registry.Addrs(strings.Split(ctx.String("registry_address"), ",")...))
*c.opts.Registry = n
} else {
if name := ctx.String("registry"); len(name) > 0 && (*c.opts.Registry).String() != name {
r, ok := c.opts.Registries[name]
if !ok {
return fmt.Errorf("Registry %s not found", name)
}
*c.opts.Registry = r()
serverOpts = append(serverOpts, server.Registry(*c.opts.Registry))
clientOpts = append(clientOpts, client.Registry(*c.opts.Registry))
@ -314,31 +306,26 @@ func (c *cmd) Before(ctx *cli.Context) error {
}
// Set the selector
if name := ctx.String("selector"); len(name) > 0 {
if s, ok := c.opts.Selectors[name]; ok {
n := s(selector.Registry(*c.opts.Registry))
*c.opts.Selector = n
} else {
if name := ctx.String("selector"); len(name) > 0 && (*c.opts.Selector).String() != name {
s, ok := c.opts.Selectors[name]
if !ok {
return fmt.Errorf("Selector %s not found", name)
}
*c.opts.Selector = s(selector.Registry(*c.opts.Registry))
// No server option here. Should there be?
clientOpts = append(clientOpts, client.Selector(*c.opts.Selector))
}
// Set the transport
if name := ctx.String("transport"); len(name) > 0 || len(ctx.String("transport_address")) > 0 {
if len(name) == 0 {
name = defaultTransport
}
if t, ok := c.opts.Transports[name]; ok {
n := t(transport.Addrs(strings.Split(ctx.String("transport_address"), ",")...))
*c.opts.Transport = n
} else {
if name := ctx.String("transport"); len(name) > 0 && (*c.opts.Transport).String() != name {
t, ok := c.opts.Transports[name]
if !ok {
return fmt.Errorf("Transport %s not found", name)
}
*c.opts.Transport = t()
serverOpts = append(serverOpts, server.Transport(*c.opts.Transport))
clientOpts = append(clientOpts, client.Transport(*c.opts.Transport))
}
@ -359,6 +346,18 @@ func (c *cmd) Before(ctx *cli.Context) error {
serverOpts = append(serverOpts, server.Metadata(metadata))
}
if len(ctx.String("broker_address")) > 0 {
(*c.opts.Broker).Init(broker.Addrs(strings.Split(ctx.String("broker_address"), ",")...))
}
if len(ctx.String("registry_address")) > 0 {
(*c.opts.Registry).Init(registry.Addrs(strings.Split(ctx.String("registry_address"), ",")...))
}
if len(ctx.String("transport_address")) > 0 {
(*c.opts.Transport).Init(transport.Addrs(strings.Split(ctx.String("transport_address"), ",")...))
}
if len(ctx.String("server_name")) > 0 {
serverOpts = append(serverOpts, server.Name(ctx.String("server_name")))
}

79
registry/consul_registry.go
View File

@ -26,6 +26,19 @@ type consulRegistry struct {
register map[string]uint64
}
func getDeregisterTTL(t time.Duration) time.Duration {
// splay slightly for the watcher?
splay := time.Second * 5
deregTTL := t + splay
// consul has a minimum timeout on deregistration of 1 minute.
if t < time.Minute {
deregTTL = time.Minute + splay
}
return deregTTL
}
func newTransport(config *tls.Config) *http.Transport {
if config == nil {
config = &tls.Config{
@ -48,32 +61,31 @@ func newTransport(config *tls.Config) *http.Transport {
return t
}
func newConsulRegistry(opts ...Option) Registry {
var options Options
func configure(c *consulRegistry, opts ...Option) {
// set opts
for _, o := range opts {
o(&options)
o(&c.opts)
}
// use default config
config := consul.DefaultConfig()
connect := false
if options.Context != nil {
if c.opts.Context != nil {
// Use the consul config passed in the options, if available
if c, ok := options.Context.Value("consul_config").(*consul.Config); ok {
config = c
if co, ok := c.opts.Context.Value("consul_config").(*consul.Config); ok {
config = co
}
if cn, ok := options.Context.Value("consul_connect").(bool); ok {
connect = cn
if cn, ok := c.opts.Context.Value("consul_connect").(bool); ok {
c.connect = cn
}
}
// check if there are any addrs
if len(options.Addrs) > 0 {
addr, port, err := net.SplitHostPort(options.Addrs[0])
if len(c.opts.Addrs) > 0 {
addr, port, err := net.SplitHostPort(c.opts.Addrs[0])
if ae, ok := err.(*net.AddrError); ok && ae.Err == "missing port in address" {
port = "8500"
addr = options.Addrs[0]
addr = c.opts.Addrs[0]
config.Address = fmt.Sprintf("%s:%s", addr, port)
} else if err == nil {
config.Address = fmt.Sprintf("%s:%s", addr, port)
@ -81,35 +93,43 @@ func newConsulRegistry(opts ...Option) Registry {
}
// requires secure connection?
if options.Secure || options.TLSConfig != nil {
if c.opts.Secure || c.opts.TLSConfig != nil {
if config.HttpClient == nil {
config.HttpClient = new(http.Client)
}
config.Scheme = "https"
// We're going to support InsecureSkipVerify
config.HttpClient.Transport = newTransport(options.TLSConfig)
config.HttpClient.Transport = newTransport(c.opts.TLSConfig)
}
// set timeout
if c.opts.Timeout > 0 {
config.HttpClient.Timeout = c.opts.Timeout
}
// create the client
client, _ := consul.NewClient(config)
// set timeout
if options.Timeout > 0 {
config.HttpClient.Timeout = options.Timeout
}
// set address/client
c.Address = config.Address
c.Client = client
}
func newConsulRegistry(opts ...Option) Registry {
cr := &consulRegistry{
Address: config.Address,
Client: client,
opts: options,
opts: Options{},
register: make(map[string]uint64),
connect: connect,
}
configure(cr, opts...)
return cr
}
func (c *consulRegistry) Init(opts ...Option) error {
configure(c, opts...)
return nil
}
func (c *consulRegistry) Deregister(s *Service) error {
if len(s.Nodes) == 0 {
return errors.New("Require at least one node")
@ -124,19 +144,6 @@ func (c *consulRegistry) Deregister(s *Service) error {
return c.Client.Agent().ServiceDeregister(node.Id)
}
func getDeregisterTTL(t time.Duration) time.Duration {
// splay slightly for the watcher?
splay := time.Second * 5
deregTTL := t + splay
// consul has a minimum timeout on deregistration of 1 minute.
if t < time.Minute {
deregTTL = time.Minute + splay
}
return deregTTL
}
func (c *consulRegistry) Register(s *Service, opts ...RegisterOption) error {
if len(s.Nodes) == 0 {
return errors.New("Require at least one node")

15
registry/mdns/mdns.go
View File

@ -49,6 +49,17 @@ func newRegistry(opts ...registry.Option) registry.Registry {
}
}
func (m *mdnsRegistry) Init(opts ...registry.Option) error {
for _, o := range opts {
o(&m.opts)
}
return nil
}
func (m *mdnsRegistry) Options() registry.Options {
return m.opts
}
func (m *mdnsRegistry) Register(service *registry.Service, opts ...registry.RegisterOption) error {
m.Lock()
defer m.Unlock()
@ -322,10 +333,6 @@ func (m *mdnsRegistry) String() string {
return "mdns"
}
func (m *mdnsRegistry) Options() registry.Options {
return m.opts
}
func NewRegistry(opts ...registry.Option) registry.Registry {
return newRegistry(opts...)
}

6
registry/mock/mock.go
View File

@ -99,11 +99,15 @@ func (m *mockRegistry) String() string {
return "mock"
}
func (m *mockRegistry) Init(opts ...registry.Option) error {
return nil
}
func (m *mockRegistry) Options() registry.Options {
return registry.Options{}
}
func NewRegistry() registry.Registry {
func NewRegistry(opts ...registry.Options) registry.Registry {
m := &mockRegistry{Services: make(map[string][]*registry.Service)}
m.init()
return m

3
registry/registry.go
View File

@ -9,13 +9,14 @@ import (
// and an abstraction over varying implementations
// {consul, etcd, zookeeper, ...}
type Registry interface {
Init(...Option) error
Options() Options
Register(*Service, ...RegisterOption) error
Deregister(*Service) error
GetService(string) ([]*Service, error)
ListServices() ([]*Service, error)
Watch(...WatchOption) (Watcher, error)
String() string
Options() Options
}
type Option func(*Options)

11
transport/http_transport.go
View File

@ -423,6 +423,17 @@ func (h *httpTransport) Listen(addr string, opts ...ListenOption) (Listener, err
}, nil
}
func (h *httpTransport) Init(opts ...Option) error {
for _, o := range opts {
o(&h.opts)
}
return nil
}
func (h *httpTransport) Options() Options {
return h.opts
}
func (h *httpTransport) String() string {
return "http"
}

11
transport/mock/mock.go
View File

@ -171,6 +171,17 @@ func (m *mockTransport) Listen(addr string, opts ...transport.ListenOption) (tra
return listener, nil
}
func (m *mockTransport) Init(opts ...transport.Option) error {
for _, o := range opts {
o(&m.opts)
}
return nil
}
func (m *mockTransport) Options() transport.Options {
return m.opts
}
func (m *mockTransport) String() string {
return "mock"
}

2
transport/transport.go
View File

@ -30,6 +30,8 @@ type Listener interface {
// services. It uses socket send/recv semantics and had various
// implementations {HTTP, RabbitMQ, NATS, ...}
type Transport interface {
Init(...Option) error
Options() Options
Dial(addr string, opts ...DialOption) (Client, error)
Listen(addr string, opts ...ListenOption) (Listener, error)
String() string