seaweedfs/weed/filesys/wfs_write.go
2020-07-19 17:59:43 -07:00

67 lines
2.0 KiB
Go

package filesys
import (
"context"
"fmt"
"io"
"github.com/chrislusf/seaweedfs/weed/filer2"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/operation"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/security"
)
func (wfs *WFS) saveDataAsChunk(dir string) filer2.SaveDataAsChunkFunctionType {
return func(reader io.Reader, filename string, offset int64) (chunk *filer_pb.FileChunk, collection, replication string, err error) {
var fileId, host string
var auth security.EncodedJwt
if err := wfs.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
request := &filer_pb.AssignVolumeRequest{
Count: 1,
Replication: wfs.option.Replication,
Collection: wfs.option.Collection,
TtlSec: wfs.option.TtlSec,
DataCenter: wfs.option.DataCenter,
ParentPath: dir,
}
resp, err := client.AssignVolume(context.Background(), request)
if err != nil {
glog.V(0).Infof("assign volume failure %v: %v", request, err)
return err
}
if resp.Error != "" {
return fmt.Errorf("assign volume failure %v: %v", request, resp.Error)
}
fileId, host, auth = resp.FileId, resp.Url, security.EncodedJwt(resp.Auth)
host = wfs.AdjustedUrl(host)
collection, replication = resp.Collection, resp.Replication
return nil
}); err != nil {
return nil, "", "", fmt.Errorf("filerGrpcAddress assign volume: %v", err)
}
fileUrl := fmt.Sprintf("http://%s/%s", host, fileId)
uploadResult, err, data := operation.Upload(fileUrl, filename, wfs.option.Cipher, reader, false, "", nil, auth)
if err != nil {
glog.V(0).Infof("upload data %v to %s: %v", filename, fileUrl, err)
return nil, "", "", fmt.Errorf("upload data: %v", err)
}
if uploadResult.Error != "" {
glog.V(0).Infof("upload failure %v to %s: %v", filename, fileUrl, err)
return nil, "", "", fmt.Errorf("upload result: %v", uploadResult.Error)
}
wfs.chunkCache.SetChunk(fileId, data)
chunk = uploadResult.ToPbFileChunk(fileId, offset)
return chunk, "", "", nil
}
}