seaweedfs/weed/filer/read_remote.go
2021-09-01 02:45:42 -07:00

37 lines
1.5 KiB
Go

package filer
import (
"context"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/pb/remote_pb"
"github.com/chrislusf/seaweedfs/weed/util"
)
func (entry *Entry) IsInRemoteOnly() bool {
return len(entry.Chunks) == 0 && entry.Remote != nil && entry.Remote.RemoteSize > 0
}
func MapFullPathToRemoteStorageLocation(localMountedDir util.FullPath, remoteMountedLocation *remote_pb.RemoteStorageLocation, fp util.FullPath) *remote_pb.RemoteStorageLocation {
remoteLocation := &remote_pb.RemoteStorageLocation{
Name: remoteMountedLocation.Name,
Bucket: remoteMountedLocation.Bucket,
Path: remoteMountedLocation.Path,
}
remoteLocation.Path = string(util.FullPath(remoteLocation.Path).Child(string(fp)[len(localMountedDir):]))
return remoteLocation
}
func MapRemoteStorageLocationPathToFullPath(localMountedDir util.FullPath, remoteMountedLocation *remote_pb.RemoteStorageLocation, remoteLocationPath string) (fp util.FullPath) {
return localMountedDir.Child(remoteLocationPath[len(remoteMountedLocation.Path):])
}
func DownloadToLocal(filerClient filer_pb.FilerClient, remoteConf *remote_pb.RemoteConf, remoteLocation *remote_pb.RemoteStorageLocation, parent util.FullPath, entry *filer_pb.Entry) error {
return filerClient.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
_, err := client.DownloadToLocal(context.Background(), &filer_pb.DownloadToLocalRequest{
Directory: string(parent),
Name: entry.Name,
})
return err
})
}