Adding iodine to donut bucket

pkg/storage/donut/bucket.go

@@ -2,6 +2,7 @@ package donut
 
 import (
 	"errors"
+	"github.com/minio-io/iodine"
 	"strconv"
 	"strings"
 )
@@ -12,7 +13,7 @@ type donutBucket struct {
 }
 
 // GetNodes - get list of associated nodes for a given bucket
-func (b donutBucket) GetNodes() ([]string, error) {
+func (b donutBucket) GetNodes() ([]string, *iodine.Error) {
 	var nodes []string
 	for _, node := range b.nodes {
 		nodes = append(nodes, node)
@@ -20,17 +21,17 @@ func (b donutBucket) GetNodes() ([]string, error) {
 	return nodes, nil
 }
 
-func (b donutBucket) AddNode(nodeID, bucketID string) error {
+func (b donutBucket) AddNode(nodeID, bucketID string) *iodine.Error {
 	tokens := strings.Split(bucketID, ":")
 	if len(tokens) != 3 {
-		return errors.New("Bucket ID malformed: " + bucketID)
+		return iodine.New(errors.New("Bucket ID malformed: "+bucketID), map[string]string{"nodeID": nodeID, "bucketID": bucketID})
 	}
 	// bucketName := tokens[0]
 	// aggregate := tokens[1]
 	// aggregate := "0"
 	part, err := strconv.Atoi(tokens[2])
 	if err != nil {
-		return errors.New("Part malformed: " + tokens[2])
+		return iodine.New(errors.New("Part malformed: "+tokens[2]), map[string]string{"nodeID": nodeID, "bucketID": bucketID})
 	}
 	b.nodes[part] = nodeID
 	return nil

pkg/storage/donut/interfaces.go

@@ -1,6 +1,7 @@
 package donut
 
 import (
+	"github.com/minio-io/iodine"
 	"io"
 )
 
@@ -18,8 +19,8 @@ type Donut interface {
 
 // Bucket interface
 type Bucket interface {
-	GetNodes() ([]string, error)
+	GetNodes() ([]string, *iodine.Error)
-	AddNode(nodeID, bucketID string) error
+	AddNode(nodeID, bucketID string) *iodine.Error
 }
 
 // Node interface