change filer API to gRPC

weed/server/filer_grpc_server.go

@@ -0,0 +1,108 @@
+package weed_server
+
+import (
+	"context"
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"bazil.org/fuse"
+	"github.com/chrislusf/seaweedfs/weed/operation"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	"strconv"
+)
+
+func (fs *FilerServer) LookupDirectoryEntry(ctx context.Context, req *filer.LookupDirectoryEntryRequest) (*filer.LookupDirectoryEntryResponse, error) {
+
+	found, fileId, err := fs.filer.LookupDirectoryEntry(req.Directory, req.Name)
+	if err != nil {
+		return nil, err
+	}
+	if !found {
+		return nil, fuse.ENOENT
+	}
+
+	return &filer.LookupDirectoryEntryResponse{
+		Entry: &filer.Entry{
+			Name:        req.Name,
+			IsDirectory: fileId == "",
+			FileId:      fileId,
+		},
+	}, nil
+}
+
+func (fs *FilerServer) ListEntries(ctx context.Context, req *filer.ListEntriesRequest) (*filer.ListEntriesResponse, error) {
+
+	directoryNames, err := fs.filer.ListDirectories(req.Directory)
+	if err != nil {
+		return nil, err
+	}
+	files, err := fs.filer.ListFiles(req.Directory, "", 1000)
+	if err != nil {
+		return nil, err
+	}
+
+	resp := &filer.ListEntriesResponse{}
+	for _, dir := range directoryNames {
+		resp.Entries = append(resp.Entries, &filer.Entry{
+			Name:        string(dir),
+			IsDirectory: true,
+		})
+	}
+	for _, fileEntry := range files {
+		resp.Entries = append(resp.Entries, &filer.Entry{
+			Name:        fileEntry.Name,
+			IsDirectory: false,
+			FileId:      string(fileEntry.Id),
+		})
+	}
+
+	return resp, nil
+}
+
+func (fs *FilerServer) GetFileAttributes(ctx context.Context, req *filer.GetFileAttributesRequest) (*filer.GetFileAttributesResponse, error) {
+
+	attributes := &filer.FuseAttributes{}
+
+	server, err := operation.LookupFileId(fs.getMasterNode(), req.FileId)
+	if err != nil {
+		return nil, err
+	}
+	head, err := util.Head(server)
+	if err != nil {
+		return nil, err
+	}
+	attributes.FileSize, err = strconv.ParseUint(head.Get("Content-Length"), 10, 0)
+	if err != nil {
+		return nil, err
+	}
+
+	return &filer.GetFileAttributesResponse{
+		Attributes: attributes,
+	}, nil
+}
+
+func (fs *FilerServer) GetFileContent(ctx context.Context, req *filer.GetFileContentRequest) (*filer.GetFileContentResponse, error) {
+
+	server, err := operation.LookupFileId(fs.getMasterNode(), req.FileId)
+	if err != nil {
+		return nil, err
+	}
+	content, err := util.Get(server)
+	if err != nil {
+		return nil, err
+	}
+
+	return &filer.GetFileContentResponse{
+		Content: content,
+	}, nil
+}
+
+func (fs *FilerServer) DeleteEntry(ctx context.Context, req *filer.DeleteEntryRequest) (resp *filer.DeleteEntryResponse, err error) {
+	if req.IsDirectory {
+		err = fs.filer.DeleteDirectory(req.Directory+req.Name, false)
+	} else {
+		fid, err := fs.filer.DeleteFile(req.Directory + req.Name)
+		if err == nil && fid != "" {
+			err = operation.DeleteFile(fs.getMasterNode(), fid, fs.jwt(fid))
+		}
+	}
+	return nil, err
+}