package service import ( "context" "github.com/micro/go-micro/client" "github.com/micro/go-micro/config/source" proto "github.com/micro/go-micro/config/source/service/proto" "github.com/micro/go-micro/util/log" ) var ( DefaultName = "go.micro.config" DefaultKey = "NAMESPACE:CONFIG" DefaultPath = "" DefaultClient = client.DefaultClient ) type service struct { serviceName string key string path string opts source.Options client proto.ConfigService } func (m *service) Read() (set *source.ChangeSet, err error) { req, err := m.client.Read(context.Background(), &proto.ReadRequest{Key: m.key, Path: m.path}) if err != nil { return nil, err } return toChangeSet(req.Change.ChangeSet), nil } func (m *service) Watch() (w source.Watcher, err error) { stream, err := m.client.Watch(context.Background(), &proto.WatchRequest{Key: m.key, Path: m.path}) if err != nil { log.Error("watch err: ", err) return } return newWatcher(stream) } // Write is unsupported func (m *service) Write(cs *source.ChangeSet) error { return nil } func (m *service) String() string { return "service" } func NewSource(opts ...source.Option) source.Source { var options source.Options for _, o := range opts { o(&options) } addr := DefaultName key := DefaultKey path := DefaultPath if options.Context != nil { a, ok := options.Context.Value(serviceNameKey{}).(string) if ok { addr = a } k, ok := options.Context.Value(keyKey{}).(string) if ok { key = k } p, ok := options.Context.Value(pathKey{}).(string) if ok { path = p } } s := &service{ serviceName: addr, opts: options, key: key, path: path, client: proto.NewConfigService(addr, DefaultClient), } return s }