micro/config/source/service/service.go
Vasiliy Tolstov 117f56ebf7
prune util/log and user logger (#1237)
* prune util/log and user logger

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* plaintext logger

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* add newline

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
2020-02-23 13:45:20 +00:00

91 lines
1.8 KiB
Go

package service
import (
"context"
"github.com/micro/go-micro/v2/client"
"github.com/micro/go-micro/v2/config/source"
proto "github.com/micro/go-micro/v2/config/source/service/proto"
log "github.com/micro/go-micro/v2/logger"
)
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
}