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58 lines
1.9 KiB
58 lines
1.9 KiB
package filer_client
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import (
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"github.com/seaweedfs/seaweedfs/weed/glog"
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"github.com/seaweedfs/seaweedfs/weed/mq/topic"
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"github.com/seaweedfs/seaweedfs/weed/pb"
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"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
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"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
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"google.golang.org/grpc"
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)
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type FilerClientAccessor struct {
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GetFiler func() pb.ServerAddress
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GetGrpcDialOption func() grpc.DialOption
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}
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func (fca *FilerClientAccessor) WithFilerClient(streamingMode bool, fn func(filer_pb.SeaweedFilerClient) error) error {
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return pb.WithFilerClient(streamingMode, 0, fca.GetFiler(), fca.GetGrpcDialOption(), fn)
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}
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func (fca *FilerClientAccessor) SaveTopicConfToFiler(t topic.Topic, conf *mq_pb.ConfigureTopicResponse) error {
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glog.V(0).Infof("save conf for topic %v to filer", t)
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// save the topic configuration on filer
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return fca.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
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return t.WriteConfFile(client, conf)
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})
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}
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func (fca *FilerClientAccessor) ReadTopicConfFromFiler(t topic.Topic) (conf *mq_pb.ConfigureTopicResponse, err error) {
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glog.V(1).Infof("load conf for topic %v from filer", t)
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if err = fca.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
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conf, err = t.ReadConfFile(client)
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return err
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}); err != nil {
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return nil, err
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}
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return conf, nil
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}
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// ReadTopicConfFromFilerWithMetadata reads topic configuration along with file creation and modification times
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func (fca *FilerClientAccessor) ReadTopicConfFromFilerWithMetadata(t topic.Topic) (conf *mq_pb.ConfigureTopicResponse, createdAtNs, modifiedAtNs int64, err error) {
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glog.V(1).Infof("load conf with metadata for topic %v from filer", t)
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if err = fca.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
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conf, createdAtNs, modifiedAtNs, err = t.ReadConfFileWithMetadata(client)
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return err
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}); err != nil {
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return nil, 0, 0, err
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}
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return conf, createdAtNs, modifiedAtNs, nil
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}
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