You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
42 lines
1.1 KiB
42 lines
1.1 KiB
package filer2
|
|
|
|
import (
|
|
"io"
|
|
|
|
"github.com/chrislusf/seaweedfs/weed/glog"
|
|
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
|
|
"github.com/chrislusf/seaweedfs/weed/util"
|
|
"github.com/chrislusf/seaweedfs/weed/wdclient"
|
|
)
|
|
|
|
func StreamContent(masterClient *wdclient.MasterClient, w io.Writer, chunks []*filer_pb.FileChunk, offset int64, size int) error {
|
|
|
|
chunkViews := ViewFromChunks(chunks, offset, size)
|
|
|
|
fileId2Url := make(map[string]string)
|
|
|
|
for _, chunkView := range chunkViews {
|
|
|
|
urlString, err := masterClient.LookupFileId(chunkView.FileId)
|
|
if err != nil {
|
|
glog.V(1).Infof("operation LookupFileId %s failed, err: %v", chunkView.FileId, err)
|
|
return err
|
|
}
|
|
fileId2Url[chunkView.FileId] = urlString
|
|
}
|
|
|
|
for _, chunkView := range chunkViews {
|
|
|
|
urlString := fileId2Url[chunkView.FileId]
|
|
err := util.ReadUrlAsStream(urlString, chunkView.CipherKey, chunkView.isGzipped, chunkView.IsFullChunk, chunkView.Offset, int(chunkView.Size), func(data []byte) {
|
|
w.Write(data)
|
|
})
|
|
if err != nil {
|
|
glog.V(1).Infof("read %s failed, err: %v", chunkView.FileId, err)
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
|
|
}
|