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69 lines
1.5 KiB
69 lines
1.5 KiB
package s3api
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import (
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"context"
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"fmt"
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"github.com/chrislusf/seaweedfs/weed/filer"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
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"io"
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"time"
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)
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func (s3a *S3ApiServer) subscribeMetaEvents(clientName string, prefix string, lastTsNs int64) error {
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processEventFn := func(resp *filer_pb.SubscribeMetadataResponse) error {
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message := resp.EventNotification
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if message.NewEntry == nil {
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return nil
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}
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dir := resp.Directory
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if message.NewParentPath != "" {
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dir = message.NewParentPath
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}
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if dir == filer.IamConfigDirecotry && message.NewEntry.Name == filer.IamIdentityFile {
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if err := s3a.iam.loadS3ApiConfigurationFromFiler(s3a.option); err != nil {
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return err
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}
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}
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return nil
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}
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for {
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err := s3a.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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stream, err := client.SubscribeMetadata(ctx, &filer_pb.SubscribeMetadataRequest{
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ClientName: clientName,
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PathPrefix: prefix,
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SinceNs: lastTsNs,
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})
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if err != nil {
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return fmt.Errorf("subscribe: %v", err)
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}
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for {
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resp, listenErr := stream.Recv()
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if listenErr == io.EOF {
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return nil
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}
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if listenErr != nil {
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return listenErr
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}
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if err := processEventFn(resp); err != nil {
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glog.Fatalf("process %v: %v", resp, err)
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}
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lastTsNs = resp.TsNs
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}
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})
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if err != nil {
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glog.Errorf("subscribing filer meta change: %v", err)
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}
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time.Sleep(time.Second)
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}
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}
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