本文整理匯總了Golang中github.com/chrislusf/seaweedfs/go/storage.Needle類的典型用法代碼示例。如果您正苦於以下問題:Golang Needle類的具體用法?Golang Needle怎麽用?Golang Needle使用的例子?那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
在下文中一共展示了Needle類的9個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: tryHandleChunkedFile
func (vs *VolumeServer) tryHandleChunkedFile(n *storage.Needle, fileName string, w http.ResponseWriter, r *http.Request) (processed bool) {
if !n.IsChunkedManifest() {
return false
}
chunkManifest, e := operation.LoadChunkManifest(n.Data, n.IsGzipped())
if e != nil {
glog.V(0).Infof("load chunked manifest (%s) error: %v", r.URL.Path, e)
return false
}
if fileName == "" && chunkManifest.Name != "" {
fileName = chunkManifest.Name
}
mType := ""
if chunkManifest.Mime != "" {
mt := chunkManifest.Mime
if !strings.HasPrefix(mt, "application/octet-stream") {
mType = mt
}
}
w.Header().Set("X-File-Store", "chunked")
chunkedFileReader := &operation.ChunkedFileReader{
Manifest: chunkManifest,
Master: vs.GetMasterNode(),
}
defer chunkedFileReader.Close()
if e := writeResponseContent(fileName, mType, chunkedFileReader, w, r); e != nil {
glog.V(2).Infoln("response write error:", e)
}
return true
}
示例2: batchDeleteHandler
//Experts only: takes multiple fid parameters. This function does not propagate deletes to replicas.
func (vs *VolumeServer) batchDeleteHandler(w http.ResponseWriter, r *http.Request) {
r.ParseForm()
var ret []operation.DeleteResult
for _, fid := range r.Form["fid"] {
vid, id_cookie, err := operation.ParseFileId(fid)
if err != nil {
ret = append(ret, operation.DeleteResult{Fid: fid, Error: err.Error()})
continue
}
n := new(storage.Needle)
volumeId, _ := storage.NewVolumeId(vid)
n.ParsePath(id_cookie)
glog.V(4).Infoln("batch deleting", n)
cookie := n.Cookie
if _, err := vs.store.ReadVolumeNeedle(volumeId, n); err != nil {
ret = append(ret, operation.DeleteResult{Fid: fid, Error: err.Error()})
continue
}
if n.Cookie != cookie {
ret = append(ret, operation.DeleteResult{Fid: fid, Error: "File Random Cookie does not match."})
glog.V(0).Infoln("deleting", fid, "with unmaching cookie from ", r.RemoteAddr, "agent", r.UserAgent())
return
}
if size, err := vs.store.Delete(volumeId, n); err != nil {
ret = append(ret, operation.DeleteResult{Fid: fid, Error: err.Error()})
} else {
ret = append(ret, operation.DeleteResult{Fid: fid, Size: int(size)})
}
}
writeJsonQuiet(w, r, http.StatusAccepted, ret)
}
示例3: DeleteHandler
func (vs *VolumeServer) DeleteHandler(w http.ResponseWriter, r *http.Request) {
n := new(storage.Needle)
vid, fid, _, _, _ := parseURLPath(r.URL.Path)
volumeId, _ := storage.NewVolumeId(vid)
n.ParsePath(fid)
glog.V(2).Infoln("deleting", n)
cookie := n.Cookie
count, ok := vs.store.ReadVolumeNeedle(volumeId, n)
if ok != nil {
m := make(map[string]uint32)
m["size"] = 0
writeJsonQuiet(w, r, http.StatusNotFound, m)
return
}
if n.Cookie != cookie {
glog.V(0).Infoln("delete", r.URL.Path, "with unmaching cookie from ", r.RemoteAddr, "agent", r.UserAgent())
return
}
ret := topology.ReplicatedDelete(vs.GetMasterNode(), vs.store, volumeId, n, r)
if ret != 0 {
m := make(map[string]uint32)
m["size"] = uint32(count)
writeJsonQuiet(w, r, http.StatusAccepted, m)
} else {
writeJsonError(w, r, http.StatusInternalServerError, errors.New("Deletion Failed."))
}
}
示例4: getVolumeDataContentHandler
func (vs *VolumeServer) getVolumeDataContentHandler(w http.ResponseWriter, r *http.Request) {
v, err := vs.getVolume("volume", r)
if v == nil {
writeJsonError(w, r, http.StatusBadRequest, fmt.Errorf("Not Found volume: %v", err))
return
}
if int(v.SuperBlock.CompactRevision) != util.ParseInt(r.FormValue("revision"), 0) {
writeJsonError(w, r, http.StatusExpectationFailed, fmt.Errorf("Requested Volume Revision is %s, but current revision is %d", r.FormValue("revision"), v.SuperBlock.CompactRevision))
return
}
offset := uint32(util.ParseUint64(r.FormValue("offset"), 0))
size := uint32(util.ParseUint64(r.FormValue("size"), 0))
content, err := storage.ReadNeedleBlob(v.DataFile(), int64(offset)*storage.NeedlePaddingSize, size)
if err != nil {
writeJsonError(w, r, http.StatusInternalServerError, err)
return
}
id := util.ParseUint64(r.FormValue("id"), 0)
n := new(storage.Needle)
n.ParseNeedleHeader(content)
if id != n.Id {
writeJsonError(w, r, http.StatusNotFound, fmt.Errorf("Expected file entry id %d, but found %d", id, n.Id))
return
}
w.Write(content)
}
示例5: ReplicatedWrite
func ReplicatedWrite(masterNode string, s *storage.Store,
volumeId storage.VolumeId, needle *storage.Needle,
r *http.Request) (size uint32, errorStatus string) {
//check JWT
jwt := security.GetJwt(r)
ret, err := s.Write(volumeId, needle)
needToReplicate := !s.HasVolume(volumeId)
if err != nil {
errorStatus = "Failed to write to local disk (" + err.Error() + ")"
} else if ret > 0 {
needToReplicate = needToReplicate || s.GetVolume(volumeId).NeedToReplicate()
} else {
errorStatus = "Failed to write to local disk"
}
if !needToReplicate && ret > 0 {
needToReplicate = s.GetVolume(volumeId).NeedToReplicate()
}
if needToReplicate { //send to other replica locations
if r.FormValue("type") != "replicate" {
if !distributedOperation(masterNode, s, volumeId, func(location operation.Location) bool {
_, err := operation.Upload(
"http://"+location.Url+r.URL.Path+"?type=replicate&ts="+strconv.FormatUint(needle.LastModified, 10),
string(needle.Name), bytes.NewReader(needle.Data), needle.IsGzipped(), string(needle.Mime),
jwt)
return err == nil
}) {
ret = 0
errorStatus = "Failed to write to replicas for volume " + volumeId.String()
}
}
}
size = ret
return
}
示例6: DeleteHandler
func (vs *VolumeServer) DeleteHandler(w http.ResponseWriter, r *http.Request) {
n := new(storage.Needle)
vid, fid, _, _, _ := parseURLPath(r.URL.Path)
volumeId, _ := storage.NewVolumeId(vid)
n.ParsePath(fid)
glog.V(2).Infoln("deleting", n)
cookie := n.Cookie
if _, ok := vs.store.ReadVolumeNeedle(volumeId, n); ok != nil {
m := make(map[string]uint32)
m["size"] = 0
writeJsonQuiet(w, r, http.StatusNotFound, m)
return
}
if n.Cookie != cookie {
glog.V(0).Infoln("delete", r.URL.Path, "with unmaching cookie from ", r.RemoteAddr, "agent", r.UserAgent())
writeJsonError(w, r, http.StatusBadRequest, errors.New("File Random Cookie does not match."))
return
}
count := int64(n.Size)
if n.IsChunkedManifest() {
chunkManifest, e := operation.LoadChunkManifest(n.Data, n.IsGzipped())
if e != nil {
writeJsonError(w, r, http.StatusInternalServerError, fmt.Errorf("Load chunks manifest error: %v", e))
return
}
// make sure all chunks had deleted before delete manifest
if e := chunkManifest.DeleteChunks(vs.GetMasterNode()); e != nil {
writeJsonError(w, r, http.StatusInternalServerError, fmt.Errorf("Delete chunks error: %v", e))
return
}
count = chunkManifest.Size
}
ret := topology.ReplicatedDelete(vs.GetMasterNode(), vs.store, volumeId, n, r)
if ret != 0 {
m := make(map[string]int64)
m["size"] = count
writeJsonQuiet(w, r, http.StatusAccepted, m)
} else {
writeJsonError(w, r, http.StatusInternalServerError, errors.New("Deletion Failed."))
}
}
示例7: walker
func walker(vid storage.VolumeId, n *storage.Needle, version storage.Version) (err error) {
key := storage.NewFileIdFromNeedle(vid, n).String()
if tarOutputFile != nil {
fileNameTemplateBuffer.Reset()
if err = fileNameTemplate.Execute(fileNameTemplateBuffer,
nameParams{
Name: string(n.Name),
Id: n.Id,
Mime: string(n.Mime),
Key: key,
Ext: filepath.Ext(string(n.Name)),
},
); err != nil {
return err
}
fileName := fileNameTemplateBuffer.String()
if n.IsGzipped() && path.Ext(fileName) != ".gz" {
fileName = fileName + ".gz"
}
tarHeader.Name, tarHeader.Size = fileName, int64(len(n.Data))
if n.HasLastModifiedDate() {
tarHeader.ModTime = time.Unix(int64(n.LastModified), 0)
} else {
tarHeader.ModTime = time.Unix(0, 0)
}
tarHeader.ChangeTime = tarHeader.ModTime
if err = tarOutputFile.WriteHeader(&tarHeader); err != nil {
return err
}
_, err = tarOutputFile.Write(n.Data)
} else {
size := n.DataSize
if version == storage.Version1 {
size = n.Size
}
fmt.Printf("key=%s Name=%s Size=%d gzip=%t mime=%s\n",
key,
n.Name,
size,
n.IsGzipped(),
n.Mime,
)
}
return
}
示例8: GetOrHeadHandler
func (vs *VolumeServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request) {
n := new(storage.Needle)
vid, fid, filename, ext, _ := parseURLPath(r.URL.Path)
volumeId, err := storage.NewVolumeId(vid)
if err != nil {
glog.V(2).Infoln("parsing error:", err, r.URL.Path)
w.WriteHeader(http.StatusBadRequest)
return
}
err = n.ParsePath(fid)
if err != nil {
glog.V(2).Infoln("parsing fid error:", err, r.URL.Path)
w.WriteHeader(http.StatusBadRequest)
return
}
glog.V(4).Infoln("volume", volumeId, "reading", n)
if !vs.store.HasVolume(volumeId) {
if !vs.ReadRedirect {
glog.V(2).Infoln("volume is not local:", err, r.URL.Path)
w.WriteHeader(http.StatusNotFound)
return
}
lookupResult, err := operation.Lookup(vs.GetMasterNode(), volumeId.String())
glog.V(2).Infoln("volume", volumeId, "found on", lookupResult, "error", err)
if err == nil && len(lookupResult.Locations) > 0 {
http.Redirect(w, r, util.NormalizeUrl(lookupResult.Locations[0].PublicUrl)+r.URL.Path, http.StatusMovedPermanently)
} else {
glog.V(2).Infoln("lookup error:", err, r.URL.Path)
w.WriteHeader(http.StatusNotFound)
}
return
}
cookie := n.Cookie
count, e := vs.store.ReadVolumeNeedle(volumeId, n)
glog.V(4).Infoln("read bytes", count, "error", e)
if e != nil || count <= 0 {
glog.V(0).Infoln("read error:", e, r.URL.Path)
w.WriteHeader(http.StatusNotFound)
return
}
if n.Cookie != cookie {
glog.V(0).Infoln("request", r.URL.Path, "with unmaching cookie seen:", cookie, "expected:", n.Cookie, "from", r.RemoteAddr, "agent", r.UserAgent())
w.WriteHeader(http.StatusNotFound)
return
}
if n.LastModified != 0 {
w.Header().Set("Last-Modified", time.Unix(int64(n.LastModified), 0).UTC().Format(http.TimeFormat))
if r.Header.Get("If-Modified-Since") != "" {
if t, parseError := time.Parse(http.TimeFormat, r.Header.Get("If-Modified-Since")); parseError == nil {
if t.Unix() >= int64(n.LastModified) {
w.WriteHeader(http.StatusNotModified)
return
}
}
}
}
etag := n.Etag()
if inm := r.Header.Get("If-None-Match"); inm == etag {
w.WriteHeader(http.StatusNotModified)
return
}
w.Header().Set("Etag", etag)
if vs.tryHandleChunkedFile(n, filename, w, r) {
return
}
if n.NameSize > 0 && filename == "" {
filename = string(n.Name)
if ext == "" {
ext = path.Ext(filename)
}
}
mtype := ""
if n.MimeSize > 0 {
mt := string(n.Mime)
if !strings.HasPrefix(mt, "application/octet-stream") {
mtype = mt
}
}
if ext != ".gz" {
if n.IsGzipped() {
if strings.Contains(r.Header.Get("Accept-Encoding"), "gzip") {
w.Header().Set("Content-Encoding", "gzip")
} else {
if n.Data, err = operation.UnGzipData(n.Data); err != nil {
glog.V(0).Infoln("ungzip error:", err, r.URL.Path)
}
}
}
}
if ext == ".png" || ext == ".jpg" || ext == ".gif" {
width, height := 0, 0
if r.FormValue("width") != "" {
width, _ = strconv.Atoi(r.FormValue("width"))
}
if r.FormValue("height") != "" {
height, _ = strconv.Atoi(r.FormValue("height"))
//.........這裏部分代碼省略.........
示例9: GetOrHeadHandler
func (vs *VolumeServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request) {
n := new(storage.Needle)
vid, fid, filename, ext, _ := parseURLPath(r.URL.Path)
volumeId, err := storage.NewVolumeId(vid)
if err != nil {
glog.V(2).Infoln("parsing error:", err, r.URL.Path)
w.WriteHeader(http.StatusBadRequest)
return
}
err = n.ParsePath(fid)
if err != nil {
glog.V(2).Infoln("parsing fid error:", err, r.URL.Path)
w.WriteHeader(http.StatusBadRequest)
return
}
glog.V(4).Infoln("volume", volumeId, "reading", n)
if !vs.store.HasVolume(volumeId) {
lookupResult, err := operation.Lookup(vs.GetMasterNode(), volumeId.String())
glog.V(2).Infoln("volume", volumeId, "found on", lookupResult, "error", err)
if err == nil && len(lookupResult.Locations) > 0 {
http.Redirect(w, r, util.NormalizeUrl(lookupResult.Locations[0].PublicUrl)+r.URL.Path, http.StatusMovedPermanently)
} else {
glog.V(2).Infoln("lookup error:", err, r.URL.Path)
w.WriteHeader(http.StatusNotFound)
}
return
}
cookie := n.Cookie
count, e := vs.store.ReadVolumeNeedle(volumeId, n)
glog.V(4).Infoln("read bytes", count, "error", e)
if e != nil || count <= 0 {
glog.V(0).Infoln("read error:", e, r.URL.Path)
w.WriteHeader(http.StatusNotFound)
return
}
if n.Cookie != cookie {
glog.V(0).Infoln("request", r.URL.Path, "with unmaching cookie seen:", cookie, "expected:", n.Cookie, "from", r.RemoteAddr, "agent", r.UserAgent())
w.WriteHeader(http.StatusNotFound)
return
}
if n.LastModified != 0 {
w.Header().Set("Last-Modified", time.Unix(int64(n.LastModified), 0).UTC().Format(http.TimeFormat))
if r.Header.Get("If-Modified-Since") != "" {
if t, parseError := time.Parse(http.TimeFormat, r.Header.Get("If-Modified-Since")); parseError == nil {
if t.Unix() >= int64(n.LastModified) {
w.WriteHeader(http.StatusNotModified)
return
}
}
}
}
etag := n.Etag()
if inm := r.Header.Get("If-None-Match"); inm == etag {
w.WriteHeader(http.StatusNotModified)
return
}
w.Header().Set("Etag", etag)
if n.NameSize > 0 && filename == "" {
filename = string(n.Name)
dotIndex := strings.LastIndex(filename, ".")
if dotIndex > 0 {
ext = filename[dotIndex:]
}
}
mtype := ""
if ext != "" {
mtype = mime.TypeByExtension(ext)
}
if n.MimeSize > 0 {
mt := string(n.Mime)
if !strings.HasPrefix(mt, "application/octet-stream") {
mtype = mt
}
}
if mtype != "" {
w.Header().Set("Content-Type", mtype)
}
if filename != "" {
w.Header().Set("Content-Disposition", "filename=\""+fileNameEscaper.Replace(filename)+"\"")
}
if ext != ".gz" {
if n.IsGzipped() {
if strings.Contains(r.Header.Get("Accept-Encoding"), "gzip") {
w.Header().Set("Content-Encoding", "gzip")
} else {
if n.Data, err = storage.UnGzipData(n.Data); err != nil {
glog.V(0).Infoln("lookup error:", err, r.URL.Path)
}
}
}
}
if ext == ".png" || ext == ".jpg" || ext == ".gif" {
width, height := 0, 0
if r.FormValue("width") != "" {
width, _ = strconv.Atoi(r.FormValue("width"))
}
if r.FormValue("height") != "" {
height, _ = strconv.Atoi(r.FormValue("height"))
}
//.........這裏部分代碼省略.........