seaweedfs/weed/server/filer_grpc_server.go
2018-09-25 09:18:06 -07:00

245 lines
7.1 KiB
Go

package weed_server
import (
"context"
"fmt"
"os"
"path/filepath"
"time"
"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/util"
"strconv"
"strings"
)
func (fs *FilerServer) LookupDirectoryEntry(ctx context.Context, req *filer_pb.LookupDirectoryEntryRequest) (*filer_pb.LookupDirectoryEntryResponse, error) {
entry, err := fs.filer.FindEntry(filer2.FullPath(filepath.Join(req.Directory, req.Name)))
if err != nil {
return nil, fmt.Errorf("%s not found under %s: %v", req.Name, req.Directory, err)
}
return &filer_pb.LookupDirectoryEntryResponse{
Entry: &filer_pb.Entry{
Name: req.Name,
IsDirectory: entry.IsDirectory(),
Attributes: filer2.EntryAttributeToPb(entry),
Chunks: entry.Chunks,
},
}, nil
}
func (fs *FilerServer) ListEntries(ctx context.Context, req *filer_pb.ListEntriesRequest) (*filer_pb.ListEntriesResponse, error) {
limit := int(req.Limit)
if limit == 0 {
limit = fs.option.DirListingLimit
}
resp := &filer_pb.ListEntriesResponse{}
lastFileName := req.StartFromFileName
includeLastFile := req.InclusiveStartFrom
for limit > 0 {
entries, err := fs.filer.ListDirectoryEntries(filer2.FullPath(req.Directory), lastFileName, includeLastFile, limit)
if err != nil {
return nil, err
}
if len(entries) == 0 {
return resp, nil
}
includeLastFile = false
for _, entry := range entries {
lastFileName = entry.Name()
if req.Prefix != "" {
if !strings.HasPrefix(entry.Name(), req.Prefix) {
continue
}
}
resp.Entries = append(resp.Entries, &filer_pb.Entry{
Name: entry.Name(),
IsDirectory: entry.IsDirectory(),
Chunks: entry.Chunks,
Attributes: filer2.EntryAttributeToPb(entry),
})
limit--
}
}
return resp, nil
}
func (fs *FilerServer) LookupVolume(ctx context.Context, req *filer_pb.LookupVolumeRequest) (*filer_pb.LookupVolumeResponse, error) {
resp := &filer_pb.LookupVolumeResponse{
LocationsMap: make(map[string]*filer_pb.Locations),
}
for _, vidString := range req.VolumeIds {
vid, err := strconv.Atoi(vidString)
if err != nil {
glog.V(1).Infof("Unknown volume id %d", vid)
return nil, err
}
var locs []*filer_pb.Location
for _, loc := range fs.filer.MasterClient.GetLocations(uint32(vid)) {
locs = append(locs, &filer_pb.Location{
Url: loc.Url,
PublicUrl: loc.PublicUrl,
})
}
resp.LocationsMap[vidString] = &filer_pb.Locations{
Locations: locs,
}
}
return resp, nil
}
func (fs *FilerServer) CreateEntry(ctx context.Context, req *filer_pb.CreateEntryRequest) (resp *filer_pb.CreateEntryResponse, err error) {
fullpath := filer2.FullPath(filepath.Join(req.Directory, req.Entry.Name))
chunks, garbages := filer2.CompactFileChunks(req.Entry.Chunks)
for _, garbage := range garbages {
glog.V(0).Infof("deleting %s garbage chunk: %v, [%d, %d)", fullpath, garbage.FileId, garbage.Offset, garbage.Offset+int64(garbage.Size))
fs.filer.DeleteFileByFileId(garbage.FileId)
}
err = fs.filer.CreateEntry(&filer2.Entry{
FullPath: fullpath,
Attr: filer2.PbToEntryAttribute(req.Entry.Attributes),
Chunks: chunks,
})
if err == nil {
}
return &filer_pb.CreateEntryResponse{}, err
}
func (fs *FilerServer) UpdateEntry(ctx context.Context, req *filer_pb.UpdateEntryRequest) (*filer_pb.UpdateEntryResponse, error) {
fullpath := filepath.Join(req.Directory, req.Entry.Name)
entry, err := fs.filer.FindEntry(filer2.FullPath(fullpath))
if err != nil {
return &filer_pb.UpdateEntryResponse{}, fmt.Errorf("not found %s: %v", fullpath, err)
}
// remove old chunks if not included in the new ones
unusedChunks := filer2.FindUnusedFileChunks(entry.Chunks, req.Entry.Chunks)
chunks, garbages := filer2.CompactFileChunks(req.Entry.Chunks)
newEntry := &filer2.Entry{
FullPath: filer2.FullPath(filepath.Join(req.Directory, req.Entry.Name)),
Attr: entry.Attr,
Chunks: chunks,
}
glog.V(3).Infof("updating %s: %+v, chunks %d: %v => %+v, chunks %d: %v",
fullpath, entry.Attr, len(entry.Chunks), entry.Chunks,
req.Entry.Attributes, len(req.Entry.Chunks), req.Entry.Chunks)
if req.Entry.Attributes != nil {
if req.Entry.Attributes.Mtime != 0 {
newEntry.Attr.Mtime = time.Unix(req.Entry.Attributes.Mtime, 0)
}
if req.Entry.Attributes.FileMode != 0 {
newEntry.Attr.Mode = os.FileMode(req.Entry.Attributes.FileMode)
}
newEntry.Attr.Uid = req.Entry.Attributes.Uid
newEntry.Attr.Gid = req.Entry.Attributes.Gid
newEntry.Attr.Mime = req.Entry.Attributes.Mime
}
if filer2.EqualEntry(entry, newEntry) {
return &filer_pb.UpdateEntryResponse{}, err
}
if err = fs.filer.UpdateEntry(newEntry); err == nil {
for _, garbage := range unusedChunks {
glog.V(0).Infof("deleting %s old chunk: %v, [%d, %d)", fullpath, garbage.FileId, garbage.Offset, garbage.Offset+int64(garbage.Size))
fs.filer.DeleteFileByFileId(garbage.FileId)
}
for _, garbage := range garbages {
glog.V(0).Infof("deleting %s garbage chunk: %v, [%d, %d)", fullpath, garbage.FileId, garbage.Offset, garbage.Offset+int64(garbage.Size))
fs.filer.DeleteFileByFileId(garbage.FileId)
}
}
fs.filer.NotifyUpdateEvent(entry, newEntry, true)
return &filer_pb.UpdateEntryResponse{}, err
}
func (fs *FilerServer) DeleteEntry(ctx context.Context, req *filer_pb.DeleteEntryRequest) (resp *filer_pb.DeleteEntryResponse, err error) {
err = fs.filer.DeleteEntryMetaAndData(filer2.FullPath(filepath.Join(req.Directory, req.Name)), req.IsRecursive, req.IsDeleteData)
return &filer_pb.DeleteEntryResponse{}, err
}
func (fs *FilerServer) AssignVolume(ctx context.Context, req *filer_pb.AssignVolumeRequest) (resp *filer_pb.AssignVolumeResponse, err error) {
ttlStr := ""
if req.TtlSec > 0 {
ttlStr = strconv.Itoa(int(req.TtlSec))
}
var altRequest *operation.VolumeAssignRequest
dataCenter := req.DataCenter
if dataCenter == "" {
dataCenter = fs.option.DataCenter
}
assignRequest := &operation.VolumeAssignRequest{
Count: uint64(req.Count),
Replication: req.Replication,
Collection: req.Collection,
Ttl: ttlStr,
DataCenter: dataCenter,
}
if dataCenter != "" {
altRequest = &operation.VolumeAssignRequest{
Count: uint64(req.Count),
Replication: req.Replication,
Collection: req.Collection,
Ttl: ttlStr,
DataCenter: "",
}
}
assignResult, err := operation.Assign(fs.filer.GetMaster(), assignRequest, altRequest)
if err != nil {
return nil, fmt.Errorf("assign volume: %v", err)
}
if assignResult.Error != "" {
return nil, fmt.Errorf("assign volume result: %v", assignResult.Error)
}
return &filer_pb.AssignVolumeResponse{
FileId: assignResult.Fid,
Count: int32(assignResult.Count),
Url: assignResult.Url,
PublicUrl: assignResult.PublicUrl,
}, err
}
func (fs *FilerServer) DeleteCollection(ctx context.Context, req *filer_pb.DeleteCollectionRequest) (resp *filer_pb.DeleteCollectionResponse, err error) {
for _, master := range fs.option.Masters {
_, err = util.Get(fmt.Sprintf("http://%s/col/delete?collection=%s", master, req.Collection))
}
return &filer_pb.DeleteCollectionResponse{}, err
}