First voltha-go commit. This commit is focussed on setting up the voltha-go structure as well as the kvstore library
diff --git a/db/kvstore/kvutils.go b/db/kvstore/kvutils.go
new file mode 100644
index 0000000..318482f
--- /dev/null
+++ b/db/kvstore/kvutils.go
@@ -0,0 +1,41 @@
+package kvstore
+
+import (
+ "fmt"
+ "time"
+)
+
+// GetDuration converts a timeout value from int to duration. If the timeout value is
+// either not set of -ve then we default KV timeout (configurable) is used.
+func GetDuration(timeout int) time.Duration {
+ if timeout <= 0 {
+ return defaultKVGetTimeout * time.Second
+ }
+ return time.Duration(timeout) * time.Second
+}
+
+// ToString converts an interface value to a string. The interface should either be of
+// a string type or []byte. Otherwise, an error is returned.
+func ToString(value interface{}) (string, error) {
+ switch t := value.(type) {
+ case []byte:
+ return string(value.([]byte)), nil
+ case string:
+ return value.(string), nil
+ default:
+ return "", fmt.Errorf("unexpected-type-%T", t)
+ }
+}
+
+// ToByte converts an interface value to a []byte. The interface should either be of
+// a string type or []byte. Otherwise, an error is returned.
+func ToByte(value interface{}) ([]byte, error) {
+ switch t := value.(type) {
+ case []byte:
+ return value.([]byte), nil
+ case string:
+ return []byte(value.(string)), nil
+ default:
+ return nil, fmt.Errorf("unexpected-type-%T", t)
+ }
+}