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Changes to CreateObject() now returns back md5 along with any error

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- This change is necessary to avoid the racy calls to GetObjectMetadata()
- This change is also necessary since one has to reply back md5sum with
  PUT object response header
This commit is contained in:
Harshavardhana
2015-04-30 03:38:11 -07:00
parent 13cae94191
commit d815e6adfd
12 changed files with 90 additions and 109 deletions
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14
pkg/storage/drivers/donut/donut.go
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@@ -366,17 +366,17 @@ func (d donutDriver) ListObjects(bucketName string, resources drivers.BucketReso
}
// CreateObject creates a new object
func (d donutDriver) CreateObject(bucketName, objectName, contentType, expectedMD5Sum string, reader io.Reader) error {
func (d donutDriver) CreateObject(bucketName, objectName, contentType, expectedMD5Sum string, reader io.Reader) (string, error) {
errParams := map[string]string{
"bucketName": bucketName,
"objectName": objectName,
"contentType": contentType,
}
if !drivers.IsValidBucket(bucketName) || strings.Contains(bucketName, ".") {
return iodine.New(drivers.BucketNameInvalid{Bucket: bucketName}, nil)
return "", iodine.New(drivers.BucketNameInvalid{Bucket: bucketName}, nil)
}
if !drivers.IsValidObject(objectName) || strings.TrimSpace(objectName) == "" {
return iodine.New(drivers.ObjectNameInvalid{Object: objectName}, nil)
return "", iodine.New(drivers.ObjectNameInvalid{Object: objectName}, nil)
}
if strings.TrimSpace(contentType) == "" {
contentType = "application/octet-stream"
@@ -387,13 +387,13 @@ func (d donutDriver) CreateObject(bucketName, objectName, contentType, expectedM
if strings.TrimSpace(expectedMD5Sum) != "" {
expectedMD5SumBytes, err := base64.StdEncoding.DecodeString(strings.TrimSpace(expectedMD5Sum))
if err != nil {
return iodine.New(err, nil)
return "", iodine.New(err, nil)
}
expectedMD5Sum = hex.EncodeToString(expectedMD5SumBytes)
}
err := d.donut.PutObject(bucketName, objectName, expectedMD5Sum, ioutil.NopCloser(reader), metadata)
calculatedMD5Sum, err := d.donut.PutObject(bucketName, objectName, expectedMD5Sum, ioutil.NopCloser(reader), metadata)
if err != nil {
return iodine.New(err, errParams)
return "", iodine.New(err, errParams)
}
return nil
return calculatedMD5Sum, nil
}