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package S3Sink
import (
"bytes"
"context"
"fmt"
"io"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/chrislusf/seaweedfs/weed/filer"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/util"
)
func (s3sink *S3Sink) deleteObject(key string) error {
input := &s3.DeleteObjectInput{
Bucket: aws.String(s3sink.bucket),
Key: aws.String(key),
}
result, err := s3sink.conn.DeleteObject(input)
if err == nil {
glog.V(0).Infof("[%s] delete %s: %v", s3sink.bucket, key, result)
} else {
glog.Errorf("[%s] delete %s: %v", s3sink.bucket, key, err)
}
return err
}
func (s3sink *S3Sink) createMultipartUpload(key string, entry *filer_pb.Entry) (uploadId string, err error) {
input := &s3.CreateMultipartUploadInput{
Bucket: aws.String(s3sink.bucket),
Key: aws.String(key),
ContentType: aws.String(entry.Attributes.Mime),
}
result, err := s3sink.conn.CreateMultipartUpload(input)
if err == nil {
glog.V(0).Infof("[%s] createMultipartUpload %s: %v", s3sink.bucket, key, result)
} else {
glog.Errorf("[%s] createMultipartUpload %s: %v", s3sink.bucket, key, err)
return "", err
}
return *result.UploadId, err
}
func (s3sink *S3Sink) abortMultipartUpload(key, uploadId string) error {
input := &s3.AbortMultipartUploadInput{
Bucket: aws.String(s3sink.bucket),
Key: aws.String(key),
UploadId: aws.String(uploadId),
}
result, err := s3sink.conn.AbortMultipartUpload(input)
if err != nil {
if aerr, ok := err.(awserr.Error); ok {
switch aerr.Code() {
case s3.ErrCodeNoSuchUpload:
glog.Errorf("[%s] abortMultipartUpload %s: %v %v", s3sink.bucket, key, s3.ErrCodeNoSuchUpload, aerr.Error())
default:
glog.Errorf("[%s] abortMultipartUpload %s: %v", s3sink.bucket, key, aerr.Error())
}
} else {
// Print the error, cast err to awserr.Error to get the Code and
// Message from an error.
glog.Errorf("[%s] abortMultipartUpload %s: %v", s3sink.bucket, key, aerr.Error())
}
return err
}
glog.V(0).Infof("[%s] abortMultipartUpload %s: %v", s3sink.bucket, key, result)
return nil
}
// To complete multipart upload
func (s3sink *S3Sink) completeMultipartUpload(ctx context.Context, key, uploadId string, parts []*s3.CompletedPart) error {
input := &s3.CompleteMultipartUploadInput{
Bucket: aws.String(s3sink.bucket),
Key: aws.String(key),
UploadId: aws.String(uploadId),
MultipartUpload: &s3.CompletedMultipartUpload{
Parts: parts,
},
}
result, err := s3sink.conn.CompleteMultipartUpload(input)
if err == nil {
glog.V(0).Infof("[%s] completeMultipartUpload %s: %v", s3sink.bucket, key, result)
} else {
glog.Errorf("[%s] completeMultipartUpload %s: %v", s3sink.bucket, key, err)
}
return err
}
// To upload a part
func (s3sink *S3Sink) uploadPart(key, uploadId string, partId int, chunk *filer.ChunkView) (*s3.CompletedPart, error) {
var readSeeker io.ReadSeeker
readSeeker, err := s3sink.buildReadSeeker(chunk)
if err != nil {
glog.Errorf("[%s] uploadPart %s %d read: %v", s3sink.bucket, key, partId, err)
return nil, fmt.Errorf("[%s] uploadPart %s %d read: %v", s3sink.bucket, key, partId, err)
}
input := &s3.UploadPartInput{
Body: readSeeker,
Bucket: aws.String(s3sink.bucket),
Key: aws.String(key),
PartNumber: aws.Int64(int64(partId)),
UploadId: aws.String(uploadId),
}
result, err := s3sink.conn.UploadPart(input)
if err == nil {
glog.V(0).Infof("[%s] uploadPart %s %d upload: %v", s3sink.bucket, key, partId, result)
} else {
glog.Errorf("[%s] uploadPart %s %d upload: %v", s3sink.bucket, key, partId, err)
}
part := &s3.CompletedPart{
ETag: result.ETag,
PartNumber: aws.Int64(int64(partId)),
}
return part, err
}
// To upload a part by copying byte range from an existing object as data source
func (s3sink *S3Sink) uploadPartCopy(key, uploadId string, partId int64, copySource string, sourceStart, sourceStop int) error {
input := &s3.UploadPartCopyInput{
Bucket: aws.String(s3sink.bucket),
CopySource: aws.String(fmt.Sprintf("/%s/%s", s3sink.bucket, copySource)),
CopySourceRange: aws.String(fmt.Sprintf("bytes=%d-%d", sourceStart, sourceStop)),
Key: aws.String(key),
PartNumber: aws.Int64(partId),
UploadId: aws.String(uploadId),
}
result, err := s3sink.conn.UploadPartCopy(input)
if err == nil {
glog.V(0).Infof("[%s] uploadPartCopy %s %d: %v", s3sink.bucket, key, partId, result)
} else {
glog.Errorf("[%s] uploadPartCopy %s %d: %v", s3sink.bucket, key, partId, err)
}
return err
}
func (s3sink *S3Sink) buildReadSeeker(chunk *filer.ChunkView) (io.ReadSeeker, error) {
fileUrls, err := s3sink.filerSource.LookupFileId(chunk.FileId)
if err != nil {
return nil, err
}
buf := make([]byte, chunk.Size)
for _, fileUrl := range fileUrls {
_, err = util.ReadUrl(fileUrl+"?readDeleted=true", nil, false, false, chunk.Offset, int(chunk.Size), buf)
if err != nil {
glog.V(1).Infof("read from %s: %v", fileUrl, err)
} else {
break
}
}
return bytes.NewReader(buf), nil
}
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