Harshavardhana
9 years ago
parent
01a439f95b
commit
30b0b4deba
@ -0,0 +1,239 @@ |
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/* |
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* Minio Cloud Storage, (C) 2016 Minio, Inc. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
|
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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|
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package main |
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import ( |
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"errors" |
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"fmt" |
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"io" |
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"net/http" |
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"net/rpc" |
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"net/url" |
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urlpath "path" |
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"strconv" |
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"strings" |
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"time" |
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) |
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type networkFS struct { |
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netAddr string |
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netPath string |
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rpcClient *rpc.Client |
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httpClient *http.Client |
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} |
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const ( |
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connected = "200 Connected to Go RPC" |
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dialTimeoutSecs = 30 // 30 seconds.
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) |
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// splits network path into its components Address and Path.
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func splitNetPath(networkPath string) (netAddr, netPath string) { |
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index := strings.LastIndex(networkPath, ":") |
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netAddr = networkPath[:index] |
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netPath = networkPath[index+1:] |
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return netAddr, netPath |
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} |
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// Initialize new network file system.
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func newNetworkFS(networkPath string) (StorageAPI, error) { |
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// Input validation.
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if networkPath == "" && strings.LastIndex(networkPath, ":") != -1 { |
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return nil, errInvalidArgument |
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} |
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// TODO validate netAddr and netPath.
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netAddr, netPath := splitNetPath(networkPath) |
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// Dial minio rpc storage http path.
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rpcClient, err := rpc.DialHTTPPath("tcp", netAddr, "/minio/rpc/storage") |
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if err != nil { |
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return nil, err |
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} |
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// Initialize http client.
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httpClient := &http.Client{ |
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// Setting a sensible time out of 6minutes to wait for
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// response headers. Request is pro-actively cancelled
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// after 6minutes if no response was received from server.
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Timeout: 6 * time.Minute, |
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Transport: http.DefaultTransport, |
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} |
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// Initialize network storage.
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ndisk := &networkFS{ |
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netAddr: netAddr, |
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netPath: netPath, |
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rpcClient: rpcClient, |
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httpClient: httpClient, |
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} |
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// Returns successfully here.
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return ndisk, nil |
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} |
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// MakeVol - make a volume.
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func (n networkFS) MakeVol(volume string) error { |
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reply := GenericReply{} |
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if err := n.rpcClient.Call("Storage.MakeVolHandler", volume, &reply); err != nil { |
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if err.Error() == errVolumeExists.Error() { |
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return errVolumeExists |
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} |
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return err |
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} |
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return nil |
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} |
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|
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// ListVols - List all volumes.
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func (n networkFS) ListVols() (vols []VolInfo, err error) { |
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ListVols := ListVolsReply{} |
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err = n.rpcClient.Call("Storage.ListVolsHandler", "", &ListVols) |
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if err != nil { |
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return nil, err |
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} |
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return ListVols.Vols, nil |
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} |
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// StatVol - get current Stat volume info.
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func (n networkFS) StatVol(volume string) (volInfo VolInfo, err error) { |
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if err = n.rpcClient.Call("Storage.StatVolHandler", volume, &volInfo); err != nil { |
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if err.Error() == errVolumeNotFound.Error() { |
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return VolInfo{}, errVolumeNotFound |
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} |
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return VolInfo{}, err |
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} |
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return volInfo, nil |
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} |
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// DeleteVol - Delete a volume.
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func (n networkFS) DeleteVol(volume string) error { |
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reply := GenericReply{} |
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if err := n.rpcClient.Call("Storage.DeleteVolHandler", volume, &reply); err != nil { |
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if err.Error() == errVolumeNotFound.Error() { |
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return errVolumeNotFound |
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} |
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return err |
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} |
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return nil |
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} |
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// File operations.
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// CreateFile - create file.
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func (n networkFS) CreateFile(volume, path string) (writeCloser io.WriteCloser, err error) { |
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writeURL := new(url.URL) |
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writeURL.Scheme = "http" // TODO fix this.
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writeURL.Host = n.netAddr |
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writeURL.Path = fmt.Sprintf("/minio/rpc/storage/upload/%s", urlpath.Join(volume, path)) |
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contentType := "application/octet-stream" |
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readCloser, writeCloser := io.Pipe() |
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go func() { |
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resp, err := n.httpClient.Post(writeURL.String(), contentType, readCloser) |
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if err != nil { |
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readCloser.CloseWithError(err) |
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return |
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} |
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if resp != nil { |
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if resp.StatusCode != http.StatusNotFound { |
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readCloser.CloseWithError(errFileNotFound) |
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return |
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} |
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readCloser.CloseWithError(errors.New("Invalid response.")) |
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} |
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}() |
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return writeCloser, nil |
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} |
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// StatFile - get latest Stat information for a file at path.
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func (n networkFS) StatFile(volume, path string) (fileInfo FileInfo, err error) { |
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if err = n.rpcClient.Call("Storage.StatFileHandler", StatFileArgs{ |
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Vol: volume, |
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Path: path, |
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}, &fileInfo); err != nil { |
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if err.Error() == errVolumeNotFound.Error() { |
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return FileInfo{}, errVolumeNotFound |
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} else if err.Error() == errFileNotFound.Error() { |
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return FileInfo{}, errFileNotFound |
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} else if err.Error() == errIsNotRegular.Error() { |
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return FileInfo{}, errFileNotFound |
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} |
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return FileInfo{}, err |
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} |
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return fileInfo, nil |
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} |
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// ReadFile - reads a file.
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func (n networkFS) ReadFile(volume string, path string, offset int64) (reader io.ReadCloser, err error) { |
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readURL := new(url.URL) |
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readURL.Scheme = "http" // TODO fix this.
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readURL.Host = n.netAddr |
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readURL.Path = fmt.Sprintf("/minio/rpc/storage/download/%s", urlpath.Join(volume, path)) |
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readQuery := make(url.Values) |
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readQuery.Set("offset", strconv.FormatInt(offset, 10)) |
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readURL.RawQuery = readQuery.Encode() |
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resp, err := n.httpClient.Get(readURL.String()) |
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if err != nil { |
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return nil, err |
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} |
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if resp.StatusCode != http.StatusOK { |
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if resp.StatusCode == http.StatusNotFound { |
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return nil, errFileNotFound |
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} |
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return nil, errors.New("Invalid response") |
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} |
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return resp.Body, nil |
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} |
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// ListFiles - List all files in a volume.
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func (n networkFS) ListFiles(volume, prefix, marker string, recursive bool, count int) (files []FileInfo, eof bool, err error) { |
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listFilesReply := ListFilesReply{} |
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if err = n.rpcClient.Call("Storage.ListFilesHandler", ListFilesArgs{ |
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Vol: volume, |
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Prefix: prefix, |
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Marker: marker, |
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Recursive: recursive, |
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Count: count, |
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}, &listFilesReply); err != nil { |
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if err.Error() == errVolumeNotFound.Error() { |
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return nil, true, errVolumeNotFound |
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} |
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return nil, true, err |
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} |
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// List of files.
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files = listFilesReply.Files |
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// EOF.
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eof = listFilesReply.EOF |
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return files, eof, nil |
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} |
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// DeleteFile - Delete a file at path.
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func (n networkFS) DeleteFile(volume, path string) (err error) { |
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reply := GenericReply{} |
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if err = n.rpcClient.Call("Storage.DeleteFileHandler", DeleteFileArgs{ |
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Vol: volume, |
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Path: path, |
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}, &reply); err != nil { |
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if err.Error() == errVolumeNotFound.Error() { |
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return errVolumeNotFound |
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} else if err.Error() == errFileNotFound.Error() { |
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return errFileNotFound |
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} |
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return err |
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} |
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return nil |
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} |
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@ -1,33 +0,0 @@ |
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package main |
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import ( |
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"io" |
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"github.com/minio/minio/pkg/probe" |
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) |
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// ObjectAPI interface.
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type ObjectAPI interface { |
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// Bucket resource API.
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DeleteBucket(bucket string) *probe.Error |
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ListBuckets() ([]BucketInfo, *probe.Error) |
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MakeBucket(bucket string) *probe.Error |
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GetBucketInfo(bucket string) (BucketInfo, *probe.Error) |
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// Bucket query API.
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ListObjects(bucket, prefix, marker, delimiter string, maxKeys int) (ListObjectsInfo, *probe.Error) |
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ListMultipartUploads(bucket, objectPrefix, keyMarker, uploadIDMarker, delimiter string, maxUploads int) (ListMultipartsInfo, *probe.Error) |
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// Object resource API.
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GetObject(bucket, object string, startOffset int64) (io.ReadCloser, *probe.Error) |
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GetObjectInfo(bucket, object string) (ObjectInfo, *probe.Error) |
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PutObject(bucket string, object string, size int64, data io.Reader, metadata map[string]string) (ObjectInfo, *probe.Error) |
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DeleteObject(bucket, object string) *probe.Error |
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// Object query API.
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NewMultipartUpload(bucket, object string) (string, *probe.Error) |
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PutObjectPart(bucket, object, uploadID string, partID int, size int64, data io.Reader, md5Hex string) (string, *probe.Error) |
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ListObjectParts(bucket, object, uploadID string, partNumberMarker, maxParts int) (ListPartsInfo, *probe.Error) |
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CompleteMultipartUpload(bucket string, object string, uploadID string, parts []completePart) (ObjectInfo, *probe.Error) |
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AbortMultipartUpload(bucket, object, uploadID string) *probe.Error |
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} |
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@ -1,178 +0,0 @@ |
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/* |
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* Minio Cloud Storage, (C) 2016 Minio, Inc. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package main |
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import ( |
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"errors" |
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"io" |
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"net" |
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"net/http" |
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"net/rpc" |
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"time" |
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) |
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type networkStorage struct { |
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address string |
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connection *rpc.Client |
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httpClient *http.Client |
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} |
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const ( |
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connected = "200 Connected to Go RPC" |
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dialTimeoutSecs = 30 // 30 seconds.
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) |
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// Initialize new network storage.
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func newNetworkStorage(address string) (StorageAPI, error) { |
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// Dial to the address with timeout of 30secs, this includes DNS resolution.
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conn, err := net.DialTimeout("tcp", address, dialTimeoutSecs*time.Second) |
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if err != nil { |
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return nil, err |
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} |
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// Initialize rpc client with dialed connection.
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rpcClient := rpc.NewClient(conn) |
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// Initialize http client.
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httpClient := &http.Client{ |
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// Setting a sensible time out of 2minutes to wait for
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// response headers. Request is pro-actively cancelled
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// after 2minutes if no response was received from server.
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Timeout: 2 * time.Minute, |
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Transport: http.DefaultTransport, |
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} |
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// Initialize network storage.
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ndisk := &networkStorage{ |
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address: address, |
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connection: rpcClient, |
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httpClient: httpClient, |
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} |
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// Returns successfully here.
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return ndisk, nil |
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} |
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// MakeVol - make a volume.
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func (n networkStorage) MakeVol(volume string) error { |
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reply := GenericReply{} |
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return n.connection.Call("Storage.MakeVolHandler", volume, &reply) |
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} |
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// ListVols - List all volumes.
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func (n networkStorage) ListVols() (vols []VolInfo, err error) { |
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ListVols := ListVolsReply{} |
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err = n.connection.Call("Storage.ListVolsHandler", "", &ListVols) |
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if err != nil { |
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return nil, err |
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} |
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return ListVols.Vols, nil |
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} |
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// StatVol - get current Stat volume info.
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func (n networkStorage) StatVol(volume string) (volInfo VolInfo, err error) { |
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if err = n.connection.Call("Storage.StatVolHandler", volume, &volInfo); err != nil { |
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return VolInfo{}, err |
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} |
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return volInfo, nil |
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} |
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// DeleteVol - Delete a volume.
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func (n networkStorage) DeleteVol(volume string) error { |
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reply := GenericReply{} |
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return n.connection.Call("Storage.DeleteVolHandler", volume, &reply) |
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} |
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// File operations.
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// CreateFile - create file.
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func (n networkStorage) CreateFile(volume, path string) (writeCloser io.WriteCloser, err error) { |
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createFileReply := CreateFileReply{} |
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if err = n.connection.Call("Storage.CreateFileHandler", CreateFileArgs{ |
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Vol: volume, |
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Path: path, |
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}, &createFileReply); err != nil { |
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return nil, err |
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} |
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contentType := "application/octet-stream" |
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readCloser, writeCloser := io.Pipe() |
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defer readCloser.Close() |
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go n.httpClient.Post(createFileReply.URL, contentType, readCloser) |
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return writeCloser, nil |
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} |
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// StatFile - get latest Stat information for a file at path.
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func (n networkStorage) StatFile(volume, path string) (fileInfo FileInfo, err error) { |
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if err = n.connection.Call("Storage.StatFileHandler", StatFileArgs{ |
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Vol: volume, |
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Path: path, |
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}, &fileInfo); err != nil { |
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return FileInfo{}, err |
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} |
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return fileInfo, nil |
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} |
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// ReadFile - reads a file.
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func (n networkStorage) ReadFile(volume string, path string, offset int64) (reader io.ReadCloser, err error) { |
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readFileReply := ReadFileReply{} |
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if err = n.connection.Call("Storage.ReadFileHandler", ReadFileArgs{ |
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Vol: volume, |
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Path: path, |
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Offset: offset, |
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}, &readFileReply); err != nil { |
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return nil, err |
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} |
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resp, err := n.httpClient.Get(readFileReply.URL) |
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if err != nil { |
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return nil, err |
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} |
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if resp.StatusCode != http.StatusOK { |
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return nil, errors.New("Invalid response") |
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} |
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return resp.Body, nil |
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} |
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// ListFiles - List all files in a volume.
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func (n networkStorage) ListFiles(volume, prefix, marker string, recursive bool, count int) (files []FileInfo, eof bool, err error) { |
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listFilesReply := ListFilesReply{} |
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if err = n.connection.Call("Storage.ListFilesHandler", ListFilesArgs{ |
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Vol: volume, |
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Prefix: prefix, |
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Marker: marker, |
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Recursive: recursive, |
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Count: count, |
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}, &listFilesReply); err != nil { |
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return nil, true, err |
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} |
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// List of files.
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files = listFilesReply.Files |
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// EOF.
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eof = listFilesReply.EOF |
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return files, eof, nil |
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} |
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// DeleteFile - Delete a file at path.
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func (n networkStorage) DeleteFile(volume, path string) (err error) { |
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reply := GenericReply{} |
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if err = n.connection.Call("Storage.DeleteFileHandler", DeleteFileArgs{ |
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Vol: volume, |
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Path: path, |
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}, &reply); err != nil { |
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return err |
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} |
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return nil |
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} |
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