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gateway-s3x-multipart.go
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gateway-s3x-multipart.go
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package s3x
import (
"context"
"errors"
fmt "fmt"
"io"
"time"
pb "github.com/RTradeLtd/TxPB/v3/go"
minio "github.com/RTradeLtd/s3x/cmd"
"github.com/segmentio/ksuid"
)
// ListMultipartUploads lists all multipart uploads.
func (x *xObjects) ListMultipartUploads(ctx context.Context, bucket string, prefix string, keyMarker string, uploadIDMarker string, delimiter string, maxUploads int) (lmi minio.ListMultipartsInfo, e error) {
fmt.Println("list multipart uploads")
return lmi, errors.New("not yet implemented")
}
// NewMultipartUpload upload object in multiple parts
func (x *xObjects) NewMultipartUpload(
ctx context.Context,
bucket, object string,
o minio.ObjectOptions,
) (uploadID string, err error) {
if !x.ledgerStore.BucketExists(bucket) {
return "", x.toMinioErr(ErrLedgerBucketDoesNotExist, bucket, "", "")
}
uploadID = ksuid.New().String()
return uploadID, x.toMinioErr(
x.ledgerStore.NewMultipartUpload(bucket, object, uploadID),
bucket, object, uploadID,
)
}
// PutObjectPart puts a part of object in bucket
func (x *xObjects) PutObjectPart(
ctx context.Context,
bucket, object, uploadID string,
partID int,
r *minio.PutObjReader,
opts minio.ObjectOptions,
) (pi minio.PartInfo, e error) {
if !x.ledgerStore.BucketExists(bucket) {
return pi, x.toMinioErr(ErrLedgerBucketDoesNotExist, bucket, "", "")
}
// add the given data to ipfs
stream, err := x.fileClient.UploadFile(ctx)
if err != nil {
return pi, err
}
var (
buf = make([]byte, 4194294)
size int
)
for {
n, err := r.Read(buf)
if err != nil && err == io.EOF {
if n == 0 {
break
}
} else if err != nil && err != io.EOF {
return pi, err
}
size = size + n
if err := stream.Send(&pb.UploadRequest{
Blob: &pb.Blob{Content: buf[:n]},
}); err != nil {
return pi, err
}
}
resp, err := stream.CloseAndRecv()
if err != nil {
return pi, err
}
err = x.ledgerStore.PutObjectPart(bucket, object, resp.GetHash(), uploadID, int64(partID))
if err != nil {
return pi, x.toMinioErr(err, bucket, object, uploadID)
}
return minio.PartInfo{
PartNumber: partID,
LastModified: time.Now().UTC(),
Size: int64(size),
}, nil
}
// CopyObjectPart creates a part in a multipart upload by copying
// existing object or a part of it.
func (x *xObjects) CopyObjectPart(ctx context.Context, srcBucket, srcObject, destBucket, destObject, uploadID string,
partID int, startOffset, length int64, srcInfo minio.ObjectInfo, srcOpts, dstOpts minio.ObjectOptions) (p minio.PartInfo, err error) {
fmt.Println("copy object part")
return p, errors.New("not yet implemented")
}
// ListObjectParts returns all object parts for specified object in specified bucket
func (x *xObjects) ListObjectParts(
ctx context.Context,
bucket, object, uploadID string,
partNumberMarker, maxParts int,
opts minio.ObjectOptions,
) (lpi minio.ListPartsInfo, e error) {
lpi = minio.ListPartsInfo{
Bucket: bucket,
Object: object,
UploadID: uploadID,
MaxParts: maxParts,
PartNumberMarker: partNumberMarker,
}
parts, err := x.ledgerStore.GetObjectParts(uploadID)
if err != nil {
return lpi, x.toMinioErr(err, bucket, object, uploadID)
}
for _, part := range parts {
lpi.Parts = append(lpi.Parts, minio.PartInfo{
PartNumber: int(part.GetNumber()),
ETag: minio.ToS3ETag(part.GetEtag()),
Size: part.GetSize_(),
})
}
return lpi, nil
}
// AbortMultipartUpload aborts a ongoing multipart upload
func (x *xObjects) AbortMultipartUpload(
ctx context.Context,
bucket, object, uploadID string,
) error {
// TODO(bonedaddy): remove the corresponding objects from ipfs
return x.toMinioErr(
x.ledgerStore.AbortMultipartUpload(bucket, uploadID),
bucket,
object,
uploadID,
)
}
// CompleteMultipartUpload completes ongoing multipart upload and finalizes object.
// uploadID is interchangeable with multipart id
func (x *xObjects) CompleteMultipartUpload(
ctx context.Context,
bucket, object, uploadID string,
uploadedParts []minio.CompletePart,
opts minio.ObjectOptions,
) (oi minio.ObjectInfo, e error) {
if !x.ledgerStore.BucketExists(bucket) {
return oi, x.toMinioErr(ErrLedgerBucketDoesNotExist, bucket, object, uploadID)
}
return oi, errors.New("not finished yet")
}