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87 lines
2.8 KiB
87 lines
2.8 KiB
package weed_server
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import (
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"fmt"
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"net/http"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/storage"
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"github.com/chrislusf/seaweedfs/weed/util"
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)
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func (vs *VolumeServer) getVolumeSyncStatusHandler(w http.ResponseWriter, r *http.Request) {
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v, err := vs.getVolume("volume", r)
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if v == nil {
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writeJsonError(w, r, http.StatusBadRequest, err)
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return
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}
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syncStat := v.GetVolumeSyncStatus()
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if syncStat.Error != "" {
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writeJsonError(w, r, http.StatusInternalServerError, fmt.Errorf("Get Volume %d status error: %s", v.Id, syncStat.Error))
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glog.V(2).Infoln("getVolumeSyncStatusHandler volume =", r.FormValue("volume"), ", error =", err)
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} else {
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writeJsonQuiet(w, r, http.StatusOK, syncStat)
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}
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}
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func (vs *VolumeServer) getVolumeIndexContentHandler(w http.ResponseWriter, r *http.Request) {
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v, err := vs.getVolume("volume", r)
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if v == nil {
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writeJsonError(w, r, http.StatusBadRequest, err)
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return
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}
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content, err := v.IndexFileContent()
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if err != nil {
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writeJsonError(w, r, http.StatusInternalServerError, err)
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return
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}
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w.Write(content)
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}
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func (vs *VolumeServer) getVolumeDataContentHandler(w http.ResponseWriter, r *http.Request) {
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v, err := vs.getVolume("volume", r)
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if v == nil {
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writeJsonError(w, r, http.StatusBadRequest, fmt.Errorf("Not Found volume: %v", err))
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return
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}
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if int(v.SuperBlock.CompactRevision) != util.ParseInt(r.FormValue("revision"), 0) {
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writeJsonError(w, r, http.StatusExpectationFailed, fmt.Errorf("Requested Volume Revision is %s, but current revision is %d", r.FormValue("revision"), v.SuperBlock.CompactRevision))
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return
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}
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offset := uint32(util.ParseUint64(r.FormValue("offset"), 0))
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size := uint32(util.ParseUint64(r.FormValue("size"), 0))
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content, block, err := storage.ReadNeedleBlob(v.DataFile(), int64(offset)*storage.NeedlePaddingSize, size)
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defer storage.ReleaseBytes(block.Bytes)
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if err != nil {
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writeJsonError(w, r, http.StatusInternalServerError, err)
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return
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}
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id := util.ParseUint64(r.FormValue("id"), 0)
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n := new(storage.Needle)
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n.ParseNeedleHeader(content)
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if id != n.Id {
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writeJsonError(w, r, http.StatusNotFound, fmt.Errorf("Expected file entry id %d, but found %d", id, n.Id))
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return
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}
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w.Write(content)
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}
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func (vs *VolumeServer) getVolume(volumeParameterName string, r *http.Request) (*storage.Volume, error) {
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volumeIdString := r.FormValue(volumeParameterName)
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if volumeIdString == "" {
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err := fmt.Errorf("Empty Volume Id: Need to pass in %s=the_volume_id.", volumeParameterName)
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return nil, err
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}
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vid, err := storage.NewVolumeId(volumeIdString)
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if err != nil {
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err = fmt.Errorf("Volume Id %s is not a valid unsigned integer", volumeIdString)
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return nil, err
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}
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v := vs.store.GetVolume(vid)
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if v == nil {
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return nil, fmt.Errorf("Not Found Volume Id %s: %d", volumeIdString, vid)
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}
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return v, nil
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}
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