add progress

example/object/get.go

@@ -19,7 +19,7 @@ func log_status(err error) {
 	}
 	if cos.IsNotFoundError(err) {
 		// WARN
-        fmt.Println("WARN: Resource is not existed")
+		fmt.Println("WARN: Resource is not existed")
 	} else if e, ok := cos.IsCOSError(err); ok {
 		fmt.Printf("ERROR: Code: %v\n", e.Code)
 		fmt.Printf("ERROR: Message: %v\n", e.Message)
@@ -33,7 +33,7 @@ func log_status(err error) {
 }
 
 func main() {
-	u, _ := url.Parse("https://test-1253846586.cos.ap-guangzhou.myqcloud.com")
+	u, _ := url.Parse("https://test-1259654469.cos.ap-guangzhou.myqcloud.com")
 	b := &cos.BaseURL{BucketURL: u}
 	c := cos.NewClient(b, &http.Client{
 		Transport: &cos.AuthorizationTransport{
@@ -48,8 +48,8 @@ func main() {
 		},
 	})
 
-	// Case1 Download object into ReadCloser(). the body needs to be closed
-	name := "test/hello.txt"
+	// Case1 通过resp.Body下载对象，Body需要关闭
+	name := "test/example"
 	resp, err := c.Object.Get(context.Background(), name, nil)
 	log_status(err)
 
@@ -57,8 +57,8 @@ func main() {
 	resp.Body.Close()
 	fmt.Printf("%s\n", string(bs))
 
-	// Case2 Download object to local file. the body needs to be closed
-	fd, err := os.OpenFile("hello.txt", os.O_WRONLY|os.O_CREATE, 0660)
+	// Case2 下载对象到文件. Body需要关闭
+	fd, err := os.OpenFile("test", os.O_WRONLY|os.O_CREATE, 0660)
 	log_status(err)
 
 	defer fd.Close()
@@ -68,11 +68,11 @@ func main() {
 	io.Copy(fd, resp.Body)
 	resp.Body.Close()
 
-	// Case3 Download object to local file path
-	_, err = c.Object.GetToFile(context.Background(), name, "hello_1.txt", nil)
+	// Case3 下载对象到文件
+	_, err = c.Object.GetToFile(context.Background(), name, "test", nil)
 	log_status(err)
 
-	// Case4 Download object with range header, can used to concurrent download
+	// Case4 range下载对象，可以根据range实现并发下载
 	opt := &cos.ObjectGetOptions{
 		ResponseContentType: "text/html",
 		Range:               "bytes=0-3",
@@ -82,4 +82,11 @@ func main() {
 	bs, _ = ioutil.ReadAll(resp.Body)
 	resp.Body.Close()
 	fmt.Printf("%s\n", string(bs))
+
+	// Case5 下载对象到文件，查看下载进度
+	opt = &cos.ObjectGetOptions{
+		Listener: &cos.DefaultProgressListener{},
+	}
+	_, err = c.Object.GetToFile(context.Background(), name, "test", opt)
+	log_status(err)
 }

example/object/put.go

@@ -19,7 +19,7 @@ func log_status(err error) {
 	}
 	if cos.IsNotFoundError(err) {
 		// WARN
-        fmt.Println("WARN: Resource is not existed")
+		fmt.Println("WARN: Resource is not existed")
 	} else if e, ok := cos.IsCOSError(err); ok {
 		fmt.Printf("ERROR: Code: %v\n", e.Code)
 		fmt.Printf("ERROR: Message: %v\n", e.Message)
@@ -44,20 +44,19 @@ func main() {
 				// Notice when put a large file and set need the request body, might happend out of memory error.
 				RequestBody:    false,
 				ResponseHeader: true,
-				ResponseBody:   true,
+				ResponseBody:   false,
 			},
 		},
 	})
 
-	// Case1 normal put object
-	name := "test/objectPut.go"
+	// Case1 上传对象
+	name := "test/example"
 	f := strings.NewReader("test")
 
 	_, err := c.Object.Put(context.Background(), name, f, nil)
 	log_status(err)
 
-	// Case2 put object with the options
-	name = "test/put_option.go"
+	// Case2 使用options上传对象
 	f = strings.NewReader("test xxx")
 	opt := &cos.ObjectPutOptions{
 		ObjectPutHeaderOptions: &cos.ObjectPutHeaderOptions{
@@ -71,7 +70,11 @@ func main() {
 	_, err = c.Object.Put(context.Background(), name, f, opt)
 	log_status(err)
 
-	// Case3 put object by local file path
+	// Case3 通过本地文件上传对象
 	_, err = c.Object.PutFromFile(context.Background(), name, "./test", nil)
 	log_status(err)
+
+	// Case4 查看上传进度
+	opt.ObjectPutHeaderOptions.Listener = &cos.DefaultProgressListener{}
+	_, err = c.Object.PutFromFile(context.Background(), name, "./test", opt)
 }

example/object/upload.go

@@ -49,9 +49,26 @@ func main() {
 		},
 	})
 
+	// Case1 多线程上传对象
+	opt := &cos.MultiUploadOptions{
+		ThreadPoolSize: 3,
+	}
 	v, _, err := c.Object.Upload(
-		context.Background(), "gomulput1G", "./test1G", nil,
+		context.Background(), "gomulput1G", "./test1G", opt,
+	)
+	log_status(err)
+	fmt.Printf("Case1 done, %v\n", v)
+
+	// Case2 多线程上传对象，查看上传进度
+	opt.OptIni = &cos.InitiateMultipartUploadOptions{
+		nil,
+		&cos.ObjectPutHeaderOptions{
+			Listener: &cos.DefaultProgressListener{},
+		},
+	}
+	v, _, err = c.Object.Upload(
+		context.Background(), "gomulput1G", "./test1G", opt,
 	)
 	log_status(err)
-	fmt.Println(v)
+	fmt.Printf("Case2 done, %v\n", v)
 }

example/object/uploadPart.go

@@ -41,7 +41,7 @@ func initUpload(c *cos.Client, name string) *cos.InitiateMultipartUploadResult {
 }
 
 func main() {
-	u, _ := url.Parse("https://test-1253846586.cos.ap-guangzhou.myqcloud.com")
+	u, _ := url.Parse("https://test-1259654469.cos.ap-guangzhou.myqcloud.com")
 	b := &cos.BaseURL{BucketURL: u}
 	c := cos.NewClient(b, &http.Client{
 		Transport: &cos.AuthorizationTransport{
@@ -49,20 +49,50 @@ func main() {
 			SecretKey: os.Getenv("COS_SECRETKEY"),
 			Transport: &debug.DebugRequestTransport{
 				RequestHeader:  true,
-				RequestBody:    true,
+				RequestBody:    false,
 				ResponseHeader: true,
-				ResponseBody:   true,
+				ResponseBody:   false,
 			},
 		},
 	})
 
+	optcom := &cos.CompleteMultipartUploadOptions{}
 	name := "test/test_multi_upload.go"
 	up := initUpload(c, name)
 	uploadID := up.UploadID
 
+	fd, err := os.Open("test")
+	if err != nil {
+		fmt.Printf("Open File Error: %v\n", err)
+		return
+	}
+	defer fd.Close()
+	stat, err := fd.Stat()
+	if err != nil {
+		fmt.Printf("Stat File Error: %v\n", err)
+		return
+	}
+	opt := &cos.ObjectUploadPartOptions{
+		Listener:      &cos.DefaultProgressListener{},
+		ContentLength: int(stat.Size()),
+	}
+	resp, err := c.Object.UploadPart(
+		context.Background(), name, uploadID, 1, fd, opt,
+	)
+	optcom.Parts = append(optcom.Parts, cos.Object{
+		PartNumber: 1, ETag: resp.Header.Get("ETag"),
+	})
+	log_status(err)
+
 	f := strings.NewReader("test heoo")
-	_, err := c.Object.UploadPart(
-		context.Background(), name, uploadID, 1, f, nil,
+	resp, err = c.Object.UploadPart(
+		context.Background(), name, uploadID, 2, f, nil,
 	)
 	log_status(err)
+	optcom.Parts = append(optcom.Parts, cos.Object{
+		PartNumber: 2, ETag: resp.Header.Get("ETag"),
+	})
+
+	_, _, err = c.Object.CompleteMultipartUpload(context.Background(), name, uploadID, optcom)
+	log_status(err)
 }

helper.go

@@ -5,8 +5,11 @@ import (
 	"crypto/md5"
 	"crypto/sha1"
 	"fmt"
+	"io"
 	"net/http"
 	"net/url"
+	"os"
+	"strings"
 )
 
 // 计算 md5 或 sha1 时的分块大小
@@ -112,3 +115,28 @@ func DecodeURIComponent(s string) (string, error) {
 func EncodeURIComponent(s string) string {
 	return encodeURIComponent(s)
 }
+
+func GetReaderLen(reader io.Reader) (length int64, err error) {
+	switch v := reader.(type) {
+	case *bytes.Buffer:
+		length = int64(v.Len())
+	case *bytes.Reader:
+		length = int64(v.Len())
+	case *strings.Reader:
+		length = int64(v.Len())
+	case *os.File:
+		stat, ferr := v.Stat()
+		if ferr != nil {
+			err = fmt.Errorf("can't get reader length: %s", ferr.Error())
+		} else {
+			length = stat.Size()
+		}
+	case *io.LimitedReader:
+		length = int64(v.N)
+	case FixedLengthReader:
+		length = v.Size()
+	default:
+		err = fmt.Errorf("can't get reader content length, unkown reader type")
+	}
+	return
+}

object.go

@@ -12,6 +12,7 @@ import (
 	"net/url"
 	"os"
 	"sort"
+	"strconv"
 	"strings"
 	"time"
 )
@@ -35,6 +36,9 @@ type ObjectGetOptions struct {
 	XCosSSECustomerKeyMD5 string `header:"x-cos-server-side-encryption-customer-key-MD5,omitempty" url:"-" xml:"-"`
 
 	XCosTrafficLimit int `header:"x-cos-traffic-limit,omitempty" url:"-" xml:"-"`
+
+	// 下载进度, ProgressCompleteEvent不能表示对应API调用成功，API是否调用成功的判断标准为返回err==nil
+	Listener ProgressListener `header:"-" url:"-" xml:"-"`
 }
 
 // presignedURLTestingOptions is the opt of presigned url
@@ -65,6 +69,14 @@ func (s *ObjectService) Get(ctx context.Context, name string, opt *ObjectGetOpti
 		disableCloseBody: true,
 	}
 	resp, err := s.client.send(ctx, &sendOpt)
+
+	if opt != nil && opt.Listener != nil {
+		if err == nil && resp != nil {
+			if totalBytes, e := strconv.ParseInt(resp.Header.Get("Content-Length"), 10, 64); e == nil {
+				resp.Body = TeeReader(resp.Body, nil, totalBytes, opt.Listener)
+			}
+		}
+	}
 	return resp, err
 }
 
@@ -152,6 +164,9 @@ type ObjectPutHeaderOptions struct {
 	//兼容其他自定义头部
 	XOptionHeader    *http.Header `header:"-,omitempty" url:"-" xml:"-"`
 	XCosTrafficLimit int          `header:"x-cos-traffic-limit,omitempty" url:"-" xml:"-"`
+
+	// 上传进度, ProgressCompleteEvent不能表示对应API调用成功，API是否调用成功的判断标准为返回err==nil
+	Listener ProgressListener `header:"-" url:"-" xml:"-"`
 }
 
 // ObjectPutOptions the options of put object
@@ -166,6 +181,14 @@ type ObjectPutOptions struct {
 //
 // https://www.qcloud.com/document/product/436/7749
 func (s *ObjectService) Put(ctx context.Context, name string, r io.Reader, opt *ObjectPutOptions) (*Response, error) {
+	if opt != nil && opt.Listener != nil {
+		totalBytes, err := GetReaderLen(r)
+		if err != nil {
+			return nil, err
+		}
+		r = TeeReader(r, nil, totalBytes, opt.Listener)
+	}
+
 	sendOpt := sendOptions{
 		baseURL:   s.client.BaseURL.BucketURL,
 		uri:       "/" + encodeURIComponent(name),
@@ -174,6 +197,7 @@ func (s *ObjectService) Put(ctx context.Context, name string, r io.Reader, opt *
 		optHeader: opt,
 	}
 	resp, err := s.client.send(ctx, &sendOpt)
+
 	return resp, err
 }
 
@@ -571,27 +595,27 @@ func DividePart(fileSize int64) (int64, int64) {
 	return partNum, partSize
 }
 
-func SplitFileIntoChunks(filePath string, partSize int64) ([]Chunk, int, error) {
+func SplitFileIntoChunks(filePath string, partSize int64) (int64, []Chunk, int, error) {
 	if filePath == "" {
-		return nil, 0, errors.New("filePath invalid")
+		return 0, nil, 0, errors.New("filePath invalid")
 	}
 
 	file, err := os.Open(filePath)
 	if err != nil {
-		return nil, 0, err
+		return 0, nil, 0, err
 	}
 	defer file.Close()
 
 	stat, err := file.Stat()
 	if err != nil {
-		return nil, 0, err
+		return 0, nil, 0, err
 	}
 	var partNum int64
 	if partSize > 0 {
 		partSize = partSize * 1024 * 1024
 		partNum = stat.Size() / partSize
 		if partNum >= 10000 {
-			return nil, 0, errors.New("Too many parts, out of 10000")
+			return 0, nil, 0, errors.New("Too many parts, out of 10000")
 		}
 	} else {
 		partNum, partSize = DividePart(stat.Size())
@@ -614,7 +638,7 @@ func SplitFileIntoChunks(filePath string, partSize int64) ([]Chunk, int, error)
 		partNum++
 	}
 
-	return chunks, int(partNum), nil
+	return int64(stat.Size()), chunks, int(partNum), nil
 
 }
 
@@ -707,7 +731,7 @@ func (s *ObjectService) Upload(ctx context.Context, name string, filepath string
 		opt = &MultiUploadOptions{}
 	}
 	// 1.Get the file chunk
-	chunks, partNum, err := SplitFileIntoChunks(filepath, opt.PartSize)
+	totalBytes, chunks, partNum, err := SplitFileIntoChunks(filepath, opt.PartSize)
 	if err != nil {
 		return nil, nil, err
 	}
@@ -768,6 +792,15 @@ func (s *ObjectService) Upload(ctx context.Context, name string, filepath string
 		go worker(s, chjobs, chresults)
 	}
 
+	// progress started event
+	var listener ProgressListener
+	var consumedBytes int64
+	if opt.OptIni != nil {
+		listener = opt.OptIni.Listener
+	}
+	event := newProgressEvent(ProgressStartedEvent, 0, 0, totalBytes)
+	progressCallback(listener, event)
+
 	// 4.Push jobs
 	for _, chunk := range chunks {
 		if chunk.Done {
@@ -798,22 +831,34 @@ func (s *ObjectService) Upload(ctx context.Context, name string, filepath string
 			optcom.Parts = append(optcom.Parts, Object{
 				PartNumber: chunks[i].Number, ETag: chunks[i].ETag},
 			)
+			consumedBytes += chunks[i].Size
+			event = newProgressEvent(ProgressDataEvent, chunks[i].Size, consumedBytes, totalBytes)
+			progressCallback(listener, event)
 			continue
 		}
 		res := <-chresults
 		// Notice one part fail can not get the etag according.
 		if res.Resp == nil || res.err != nil {
 			// Some part already fail, can not to get the header inside.
-			return nil, nil, fmt.Errorf("UploadID %s, part %d failed to get resp content. error: %s", uploadID, res.PartNumber, res.err.Error())
+			err := fmt.Errorf("UploadID %s, part %d failed to get resp content. error: %s", uploadID, res.PartNumber, res.err.Error())
+			event = newProgressEvent(ProgressFailedEvent, 0, consumedBytes, totalBytes, err)
+			progressCallback(listener, event)
+			return nil, nil, err
 		}
 		// Notice one part fail can not get the etag according.
 		etag := res.Resp.Header.Get("ETag")
 		optcom.Parts = append(optcom.Parts, Object{
 			PartNumber: res.PartNumber, ETag: etag},
 		)
+		consumedBytes += chunks[res.PartNumber-1].Size
+		event = newProgressEvent(ProgressDataEvent, chunks[res.PartNumber-1].Size, consumedBytes, totalBytes)
+		progressCallback(listener, event)
 	}
 	sort.Sort(ObjectList(optcom.Parts))
 
+	event = newProgressEvent(ProgressCompletedEvent, 0, consumedBytes, totalBytes)
+	progressCallback(listener, event)
+
 	v, resp, err := s.CompleteMultipartUpload(context.Background(), name, uploadID, optcom)
 
 	return v, resp, err

object_part.go

@@ -50,6 +50,9 @@ type ObjectUploadPartOptions struct {
 	XCosSSECustomerKeyMD5 string `header:"x-cos-server-side-encryption-customer-key-MD5,omitempty" url:"-" xml:"-"`
 
 	XCosTrafficLimit int `header:"x-cos-traffic-limit,omitempty" url:"-" xml:"-"`
+
+	// 上传进度, ProgressCompleteEvent不能表示对应API调用成功，API是否调用成功的判断标准为返回err==nil
+	Listener ProgressListener `header:"-" url:"-" xml:"-"`
 }
 
 // UploadPart 请求实现在初始化以后的分块上传，支持的块的数量为1到10000，块的大小为1 MB 到5 GB。
@@ -61,6 +64,13 @@ type ObjectUploadPartOptions struct {
 //
 // https://www.qcloud.com/document/product/436/7750
 func (s *ObjectService) UploadPart(ctx context.Context, name, uploadID string, partNumber int, r io.Reader, opt *ObjectUploadPartOptions) (*Response, error) {
+	if opt != nil && opt.Listener != nil {
+		totalBytes, err := GetReaderLen(r)
+		if err != nil {
+			return nil, err
+		}
+		r = TeeReader(r, nil, totalBytes, opt.Listener)
+	}
 	u := fmt.Sprintf("/%s?partNumber=%d&uploadId=%s", encodeURIComponent(name), partNumber, uploadID)
 	sendOpt := sendOptions{
 		baseURL:   s.client.BaseURL.BucketURL,

progress.go

@@ -0,0 +1,135 @@
+package cos
+
+import (
+	"fmt"
+	"io"
+)
+
+type ProgressEventType int
+
+const (
+	// 数据开始传输
+	ProgressStartedEvent ProgressEventType = iota
+	// 数据传输中
+	ProgressDataEvent
+	// 数据传输完成, 但不能表示对应API调用完成
+	ProgressCompletedEvent
+	// 只有在数据传输时发生错误才会返回
+	ProgressFailedEvent
+)
+
+type ProgressEvent struct {
+	EventType     ProgressEventType
+	RWBytes       int64
+	ConsumedBytes int64
+	TotalBytes    int64
+	Err           error
+}
+
+func newProgressEvent(eventType ProgressEventType, rwBytes, consumed, total int64, err ...error) *ProgressEvent {
+	event := &ProgressEvent{
+		EventType:     eventType,
+		RWBytes:       rwBytes,
+		ConsumedBytes: consumed,
+		TotalBytes:    total,
+	}
+	if len(err) > 0 {
+		event.Err = err[0]
+	}
+	return event
+}
+
+// 用户自定义Listener需要实现该方法
+type ProgressListener interface {
+	ProgressChangedCallback(event *ProgressEvent)
+}
+
+func progressCallback(listener ProgressListener, event *ProgressEvent) {
+	if listener != nil && event != nil {
+		listener.ProgressChangedCallback(event)
+	}
+}
+
+type teeReader struct {
+	reader        io.Reader
+	writer        io.Writer
+	consumedBytes int64
+	totalBytes    int64
+	listener      ProgressListener
+}
+
+func (r *teeReader) Read(p []byte) (int, error) {
+	if r.consumedBytes == 0 {
+		event := newProgressEvent(ProgressStartedEvent, 0, r.consumedBytes, r.totalBytes)
+		progressCallback(r.listener, event)
+	}
+
+	n, err := r.reader.Read(p)
+	if err != nil && err != io.EOF {
+		event := newProgressEvent(ProgressFailedEvent, 0, r.consumedBytes, r.totalBytes, err)
+		progressCallback(r.listener, event)
+	}
+	if n > 0 {
+		r.consumedBytes += int64(n)
+		if r.writer != nil {
+			if n, err := r.writer.Write(p[:n]); err != nil {
+				return n, err
+			}
+		}
+		if r.listener != nil {
+			event := newProgressEvent(ProgressDataEvent, int64(n), r.consumedBytes, r.totalBytes)
+			progressCallback(r.listener, event)
+		}
+	}
+
+	if err == io.EOF {
+		event := newProgressEvent(ProgressCompletedEvent, int64(n), r.consumedBytes, r.totalBytes)
+		progressCallback(r.listener, event)
+	}
+
+	return n, err
+}
+
+func (r *teeReader) Close() error {
+	if rc, ok := r.reader.(io.ReadCloser); ok {
+		return rc.Close()
+	}
+	return nil
+}
+
+func TeeReader(reader io.Reader, writer io.Writer, total int64, listener ProgressListener) *teeReader {
+	return &teeReader{
+		reader:        reader,
+		writer:        writer,
+		consumedBytes: 0,
+		totalBytes:    total,
+		listener:      listener,
+	}
+}
+
+type FixedLengthReader interface {
+	io.Reader
+	Size() int64
+}
+
+type DefaultProgressListener struct {
+}
+
+func (l *DefaultProgressListener) ProgressChangedCallback(event *ProgressEvent) {
+	switch event.EventType {
+	case ProgressStartedEvent:
+		fmt.Printf("Transfer Start    [ConsumedBytes/TotalBytes: %d/%d]\n",
+			event.ConsumedBytes, event.TotalBytes)
+	case ProgressDataEvent:
+		fmt.Printf("\rTransfer Data     [ConsumedBytes/TotalBytes: %d/%d, %d%%]",
+			event.ConsumedBytes, event.TotalBytes, event.ConsumedBytes*100/event.TotalBytes)
+	case ProgressCompletedEvent:
+		fmt.Printf("\nTransfer Complete [ConsumedBytes/TotalBytes: %d/%d]\n",
+			event.ConsumedBytes, event.TotalBytes)
+	case ProgressFailedEvent:
+		fmt.Printf("\nTransfer Failed   [ConsumedBytes/TotalBytes: %d/%d] [Err: %v]\n",
+			event.ConsumedBytes, event.TotalBytes, event.Err)
+	default:
+		fmt.Printf("Progress Changed Error: unknown progress event type\n")
+	}
+}