cp file can work

1. consolidate to filer_pb.FileChunk
2. dir add file, mkdir
3. file flush, write

updates having issue

weed/filesys/file.go

@@ -5,13 +5,14 @@ import (
 	"fmt"
 
 	"bazil.org/fuse"
-	"github.com/chrislusf/seaweedfs/weed/filer"
 	"bazil.org/fuse/fs"
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
 	"path/filepath"
 	"os"
 	"time"
+	"bytes"
+	"github.com/chrislusf/seaweedfs/weed/operation"
 )
 
 var _ = fs.Node(&File{})
@@ -20,10 +21,11 @@ var _ = fs.Node(&File{})
 var _ = fs.Handle(&File{})
 var _ = fs.HandleReadAller(&File{})
 // var _ = fs.HandleReader(&File{})
+var _ = fs.HandleFlusher(&File{})
 var _ = fs.HandleWriter(&File{})
 
 type File struct {
-	FileId filer.FileId
+	Chunks []*filer_pb.FileChunk
 	Name   string
 	dir    *Dir
 	wfs    *WFS
@@ -71,10 +73,15 @@ func (file *File) Attr(context context.Context, attr *fuse.Attr) error {
 
 func (file *File) ReadAll(ctx context.Context) (content []byte, err error) {
 
+	if len(file.Chunks) == 0 {
+		return
+	}
+
 	err = file.wfs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error {
 
+		// FIXME: need to either use Read() or implement differently
 		request := &filer_pb.GetFileContentRequest{
-			FileId: string(file.FileId),
+			FileId: file.Chunks[0].FileId,
 		}
 
 		glog.V(1).Infof("read file content: %v", request)
@@ -91,7 +98,75 @@ func (file *File) ReadAll(ctx context.Context) (content []byte, err error) {
 	return content, err
 }
 
+func (file *File) Flush(ctx context.Context, req *fuse.FlushRequest) error {
+	// write the file chunks to the filer
+	fmt.Printf("flush file %+v\n", req)
+
+	err := file.wfs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error {
+
+		request := &filer_pb.AppendFileChunksRequest{
+			Directory: file.dir.Path,
+			Entry: &filer_pb.Entry{
+				Name:   file.Name,
+				Chunks: file.Chunks,
+			},
+		}
+
+		glog.V(1).Infof("append chunks: %v", request)
+		if _, err := client.AppendFileChunks(ctx, request); err != nil {
+			return fmt.Errorf("create file: %v", err)
+		}
+
+		return nil
+	})
+
+	return err
+}
+
 func (file *File) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) error {
+	// write the request to volume servers
 	fmt.Printf("write file %+v\n", req)
+
+	var fileId, host string
+
+	if err := file.wfs.withFilerClient(func(client filer_pb.SeaweedFilerClient) error {
+
+		request := &filer_pb.AssignVolumeRequest{
+			Count:       1,
+			Replication: "000",
+			Collection:  "",
+		}
+
+		glog.V(1).Infof("assign volume: %v", request)
+		resp, err := client.AssignVolume(ctx, request)
+		if err != nil {
+			return err
+		}
+
+		fileId, host = resp.FileId, resp.Url
+
+		return nil
+	}); err != nil {
+		return fmt.Errorf("filer assign volume: %v", err)
+	}
+
+	fileUrl := fmt.Sprintf("http://%s/%s", host, fileId)
+	bufReader := bytes.NewReader(req.Data)
+	uploadResult, err := operation.Upload(fileUrl, file.Name, bufReader, false, "application/octet-stream", nil, "")
+	if err != nil {
+		return fmt.Errorf("upload data: %v", err)
+	}
+	if uploadResult.Error != "" {
+		return fmt.Errorf("upload result: %v", uploadResult.Error)
+	}
+
+	glog.V(1).Infof("uploaded %s/%s to: %v", file.dir.Path, file.Name, fileUrl)
+
+	file.Chunks = append(file.Chunks, &filer_pb.FileChunk{
+		FileId: fileId,
+		Offset: req.Offset,
+		Size:   uint64(uploadResult.Size),
+	})
+
 	return nil
 }