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Return back proper errors in writeObjectData(), rename few functions

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This commit is contained in:
Harshavardhana 2015-06-29 11:42:58 -07:00
parent be816145a9
commit d07d0c670a
1 changed files with 26 additions and 25 deletions
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51
pkg/storage/donut/bucket.go
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@ -212,7 +212,7 @@ func (b bucket) ReadObject(objectName string) (reader io.ReadCloser, size int64,
return nil, 0, iodine.New(err, nil)
}
// read and reply back to GetObject() request in a go-routine
go b.readEncodedData(normalizeObjectName(objectName), writer, objMetadata)
go b.readObjectData(normalizeObjectName(objectName), writer, objMetadata)
return reader, objMetadata.Size, nil
}
@ -223,7 +223,7 @@ func (b bucket) WriteObject(objectName string, objectData io.Reader, expectedMD5
if objectName == "" || objectData == nil {
return ObjectMetadata{}, iodine.New(InvalidArgument{}, nil)
}
writers, err := b.getDiskWriters(normalizeObjectName(objectName), "data")
writers, err := b.getWriters(normalizeObjectName(objectName), "data")
if err != nil {
return ObjectMetadata{}, iodine.New(err, nil)
}
@ -247,8 +247,8 @@ func (b bucket) WriteObject(objectName string, objectData io.Reader, expectedMD5
if err != nil {
return ObjectMetadata{}, iodine.New(err, nil)
}
// encoded data with k, m and write
chunkCount, totalLength, err := b.writeEncodedData(k, m, writers, objectData, sumMD5, sum512)
// write encoded data with k, m and writers
chunkCount, totalLength, err := b.writeObjectData(k, m, writers, objectData, sumMD5, sum512)
if err != nil {
return ObjectMetadata{}, iodine.New(err, nil)
}
@ -310,7 +310,7 @@ func (b bucket) writeObjectMetadata(objectName string, objMetadata ObjectMetadat
if objMetadata.Object == "" {
return iodine.New(InvalidArgument{}, nil)
}
objMetadataWriters, err := b.getDiskWriters(objectName, objectMetadataConfig)
objMetadataWriters, err := b.getWriters(objectName, objectMetadataConfig)
if err != nil {
return iodine.New(err, nil)
}
@ -332,7 +332,7 @@ func (b bucket) readObjectMetadata(objectName string) (ObjectMetadata, error) {
if objectName == "" {
return ObjectMetadata{}, iodine.New(InvalidArgument{}, nil)
}
objMetadataReaders, err := b.getDiskReaders(objectName, objectMetadataConfig)
objMetadataReaders, err := b.getReaders(objectName, objectMetadataConfig)
if err != nil {
return ObjectMetadata{}, iodine.New(err, nil)
}
@ -378,8 +378,8 @@ func (b bucket) getDataAndParity(totalWriters int) (k uint8, m uint8, err error)
return k, m, nil
}
// writeEncodedData -
func (b bucket) writeEncodedData(k, m uint8, writers []io.WriteCloser, objectData io.Reader, sumMD5, sum512 hash.Hash) (int, int, error) {
// writeObjectData -
func (b bucket) writeObjectData(k, m uint8, writers []io.WriteCloser, objectData io.Reader, sumMD5, sum512 hash.Hash) (int, int, error) {
encoder, err := newEncoder(k, m, "Cauchy")
if err != nil {
return 0, 0, iodine.New(err, nil)
@ -387,16 +387,17 @@ func (b bucket) writeEncodedData(k, m uint8, writers []io.WriteCloser, objectDat
chunkCount := 0
totalLength := 0
for chunk := range split.Stream(objectData, 10*1024*1024) {
if chunk.Err == nil {
totalLength = totalLength + len(chunk.Data)
encodedBlocks, _ := encoder.Encode(chunk.Data)
sumMD5.Write(chunk.Data)
sum512.Write(chunk.Data)
for blockIndex, block := range encodedBlocks {
_, err := io.Copy(writers[blockIndex], bytes.NewBuffer(block))
if err != nil {
return 0, 0, iodine.New(err, nil)
}
if chunk.Err != nil {
return 0, 0, iodine.New(err, nil)
}
totalLength = totalLength + len(chunk.Data)
encodedBlocks, _ := encoder.Encode(chunk.Data)
sumMD5.Write(chunk.Data)
sum512.Write(chunk.Data)
for blockIndex, block := range encodedBlocks {
_, err := io.Copy(writers[blockIndex], bytes.NewBuffer(block))
if err != nil {
return 0, 0, iodine.New(err, nil)
}
}
chunkCount = chunkCount + 1
@ -404,9 +405,9 @@ func (b bucket) writeEncodedData(k, m uint8, writers []io.WriteCloser, objectDat
return chunkCount, totalLength, nil
}
// readEncodedData -
func (b bucket) readEncodedData(objectName string, writer *io.PipeWriter, objMetadata ObjectMetadata) {
readers, err := b.getDiskReaders(objectName, "data")
// readObjectData -
func (b bucket) readObjectData(objectName string, writer *io.PipeWriter, objMetadata ObjectMetadata) {
readers, err := b.getReaders(objectName, "data")
if err != nil {
writer.CloseWithError(iodine.New(err, nil))
return
@ -490,8 +491,8 @@ func (b bucket) decodeEncodedData(totalLeft, blockSize int64, readers []io.ReadC
return decodedData, nil
}
// getDiskReaders -
func (b bucket) getDiskReaders(objectName, objectMeta string) ([]io.ReadCloser, error) {
// getReaders -
func (b bucket) getReaders(objectName, objectMeta string) ([]io.ReadCloser, error) {
var readers []io.ReadCloser
nodeSlice := 0
for _, node := range b.nodes {
@ -514,8 +515,8 @@ func (b bucket) getDiskReaders(objectName, objectMeta string) ([]io.ReadCloser,
return readers, nil
}
// getDiskWriters -
func (b bucket) getDiskWriters(objectName, objectMeta string) ([]io.WriteCloser, error) {
// getWriters -
func (b bucket) getWriters(objectName, objectMeta string) ([]io.WriteCloser, error) {
var writers []io.WriteCloser
nodeSlice := 0
for _, node := range b.nodes {