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