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Change CopyObject{Part} to single srcInfo argument (#5553)

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Refactor such that metadata and etag are
combined to a single argument `srcInfo`.

This is a precursor change for #5544 making
it easier for us to provide encryption/decryption
functions.
This commit is contained in:
Harshavardhana
2018-02-21 00:48:47 -08:00
committed by Nitish Tiwari
parent a00e052606
commit 0ea54c9858
14 changed files with 61 additions and 99 deletions
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14
cmd/gateway/s3/gateway-s3.go
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@@ -290,13 +290,14 @@ func (l *s3Objects) PutObject(bucket string, object string, data *hash.Reader, m
}
// CopyObject copies an object from source bucket to a destination bucket.
func (l *s3Objects) CopyObject(srcBucket string, srcObject string, dstBucket string, dstObject string, metadata map[string]string, srcEtag string) (objInfo minio.ObjectInfo, err error) {
func (l *s3Objects) CopyObject(srcBucket string, srcObject string, dstBucket string, dstObject string, srcInfo minio.ObjectInfo) (objInfo minio.ObjectInfo, err error) {
// Set this header such that following CopyObject() always sets the right metadata on the destination.
// metadata input is already a trickled down value from interpreting x-amz-metadata-directive at
// handler layer. So what we have right now is supposed to be applied on the destination object anyways.
// So preserve it by adding "REPLACE" directive to save all the metadata set by CopyObject API.
metadata["x-amz-metadata-directive"] = "REPLACE"
if _, err = l.Client.CopyObject(srcBucket, srcObject, dstBucket, dstObject, metadata); err != nil {
srcInfo.UserDefined["x-amz-metadata-directive"] = "REPLACE"
srcInfo.UserDefined["x-amz-copy-source-if-match"] = srcInfo.ETag
if _, err = l.Client.CopyObject(srcBucket, srcObject, dstBucket, dstObject, srcInfo.UserDefined); err != nil {
return objInfo, minio.ErrorRespToObjectError(errors.Trace(err), srcBucket, srcObject)
}
return l.GetObjectInfo(dstBucket, dstObject)
@@ -346,10 +347,13 @@ func (l *s3Objects) PutObjectPart(bucket string, object string, uploadID string,
// CopyObjectPart creates a part in a multipart upload by copying
// existing object or a part of it.
func (l *s3Objects) CopyObjectPart(srcBucket, srcObject, destBucket, destObject, uploadID string,
partID int, startOffset, length int64, metadata map[string]string, srcEtag string) (p minio.PartInfo, err error) {
partID int, startOffset, length int64, srcInfo minio.ObjectInfo) (p minio.PartInfo, err error) {
srcInfo.UserDefined = map[string]string{
"x-amz-copy-source-if-match": srcInfo.ETag,
}
completePart, err := l.Client.CopyObjectPart(srcBucket, srcObject, destBucket, destObject,
uploadID, partID, startOffset, length, metadata)
uploadID, partID, startOffset, length, srcInfo.UserDefined)
if err != nil {
return p, minio.ErrorRespToObjectError(errors.Trace(err), srcBucket, srcObject)
}