mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-12-05 11:39:02 +08:00
71 lines
1.6 KiB
Go
71 lines
1.6 KiB
Go
package s3api
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"github.com/chrislusf/seaweedfs/weed/filer"
|
|
"github.com/chrislusf/seaweedfs/weed/glog"
|
|
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
|
|
"io"
|
|
"time"
|
|
)
|
|
|
|
func (s3a *S3ApiServer) subscribeMetaEvents(clientName string, prefix string, lastTsNs int64) error {
|
|
|
|
processEventFn := func(resp *filer_pb.SubscribeMetadataResponse) error {
|
|
|
|
message := resp.EventNotification
|
|
if message.NewEntry == nil {
|
|
return nil
|
|
}
|
|
|
|
dir := resp.Directory
|
|
|
|
if message.NewParentPath != "" {
|
|
dir = message.NewParentPath
|
|
}
|
|
if dir == filer.IamConfigDirecotry && message.NewEntry.Name == filer.IamIdentityFile {
|
|
if err := s3a.iam.loadS3ApiConfigurationFromBytes(message.NewEntry.Content); err != nil {
|
|
return err
|
|
}
|
|
glog.V(0).Infof("updated %s/%s", filer.IamConfigDirecotry, filer.IamIdentityFile)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
for {
|
|
err := s3a.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
stream, err := client.SubscribeMetadata(ctx, &filer_pb.SubscribeMetadataRequest{
|
|
ClientName: clientName,
|
|
PathPrefix: prefix,
|
|
SinceNs: lastTsNs,
|
|
})
|
|
if err != nil {
|
|
return fmt.Errorf("subscribe: %v", err)
|
|
}
|
|
|
|
for {
|
|
resp, listenErr := stream.Recv()
|
|
if listenErr == io.EOF {
|
|
return nil
|
|
}
|
|
if listenErr != nil {
|
|
return listenErr
|
|
}
|
|
|
|
if err := processEventFn(resp); err != nil {
|
|
glog.Fatalf("process %v: %v", resp, err)
|
|
}
|
|
lastTsNs = resp.TsNs
|
|
}
|
|
})
|
|
if err != nil {
|
|
glog.Errorf("subscribing filer meta change: %v", err)
|
|
}
|
|
time.Sleep(time.Second)
|
|
}
|
|
}
|