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Probe revamped to provide for a new WrappedError struct to wrap probes as error interface

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This convenience was necessary to be used for golang library functions like io.Copy and io.Pipe
where we shouldn't be writing proxies and alternatives returning *probe.Error

This change also brings more changes across code base for clear separation regarding where an error
interface should be passed encapsulating *probe.Error and where it should be used as is.
This commit is contained in:
Harshavardhana
2015-08-07 23:47:22 -07:00
parent 28d9565400
commit 45b59b8456
34 changed files with 392 additions and 363 deletions
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14
pkg/donut/encoder.go
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@@ -38,7 +38,7 @@ func getErasureTechnique(technique string) (encoding.Technique, *probe.Error) {
case technique == "Vandermonde":
return encoding.Cauchy, nil
default:
return encoding.None, probe.New(InvalidErasureTechnique{Technique: technique})
return encoding.None, probe.NewError(InvalidErasureTechnique{Technique: technique})
}
}
@@ -52,7 +52,7 @@ func newEncoder(k, m uint8, technique string) (encoder, *probe.Error) {
{
params, err := encoding.ValidateParams(k, m, t)
if err != nil {
return encoder{}, probe.New(err)
return encoder{}, probe.NewError(err)
}
e.encoder = encoding.NewErasure(params)
e.k = k
@@ -66,7 +66,7 @@ func newEncoder(k, m uint8, technique string) (encoder, *probe.Error) {
// GetEncodedBlockLen - wrapper around erasure function with the same name
func (e encoder) GetEncodedBlockLen(dataLength int) (int, *probe.Error) {
if dataLength <= 0 {
return 0, probe.New(InvalidArgument{})
return 0, probe.NewError(InvalidArgument{})
}
return encoding.GetEncodedBlockLen(dataLength, e.k), nil
}
@@ -74,11 +74,11 @@ func (e encoder) GetEncodedBlockLen(dataLength int) (int, *probe.Error) {
// Encode - erasure code input bytes
func (e encoder) Encode(data []byte) ([][]byte, *probe.Error) {
if data == nil {
return nil, probe.New(InvalidArgument{})
return nil, probe.NewError(InvalidArgument{})
}
encodedData, err := e.encoder.Encode(data)
if err != nil {
return nil, probe.New(err)
return nil, probe.NewError(err)
}
return encodedData, nil
}
@@ -86,7 +86,7 @@ func (e encoder) Encode(data []byte) ([][]byte, *probe.Error) {
func (e encoder) EncodeStream(data io.Reader, size int64) ([][]byte, []byte, *probe.Error) {
encodedData, inputData, err := e.encoder.EncodeStream(data, size)
if err != nil {
return nil, nil, probe.New(err)
return nil, nil, probe.NewError(err)
}
return encodedData, inputData, nil
}
@@ -95,7 +95,7 @@ func (e encoder) EncodeStream(data io.Reader, size int64) ([][]byte, []byte, *pr
func (e encoder) Decode(encodedData [][]byte, dataLength int) ([]byte, *probe.Error) {
decodedData, err := e.encoder.Decode(encodedData, dataLength)
if err != nil {
return nil, probe.New(err)
return nil, probe.NewError(err)
}
return decodedData, nil
}