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-rw-r--r--storage/memory/object.go35
1 files changed, 24 insertions, 11 deletions
diff --git a/storage/memory/object.go b/storage/memory/object.go
index 125e887..1720ebd 100644
--- a/storage/memory/object.go
+++ b/storage/memory/object.go
@@ -9,19 +9,29 @@ import (
// Object on memory core.Object implementation
type Object struct {
- t core.ObjectType
- h core.Hash
- content []byte
- size int64
+ t core.ObjectType
+ h core.Hash
+ cont []byte
+ sz int64
+}
+
+// NewObject creates a new object with the given type and content
+func NewObject(typ core.ObjectType, size int64, cont []byte) *Object {
+ return &Object{
+ t: typ,
+ h: core.ComputeHash(typ, cont),
+ cont: cont,
+ sz: int64(len(cont)),
+ }
}
// Hash return the object Hash, the hash is calculated on-the-fly the first
-// time is called, the subsequent calls the same Hash is returned even in the
+// time is called, the subsequent calls the same Hash is returned even if the
// type or the content has changed. The Hash is only generated if the size of
// the content is exactly the Object.Size
func (o *Object) Hash() core.Hash {
- if o.h == core.ZeroHash && int64(len(o.content)) == o.size {
- o.h = core.ComputeHash(o.t, o.content)
+ if o.h == core.ZeroHash && int64(len(o.cont)) == o.sz {
+ o.h = core.ComputeHash(o.t, o.cont)
}
return o.h
@@ -34,14 +44,17 @@ func (o *Object) Type() core.ObjectType { return o.t }
func (o *Object) SetType(t core.ObjectType) { o.t = t }
// Size return the size of the object
-func (o *Object) Size() int64 { return o.size }
+func (o *Object) Size() int64 { return o.sz }
// SetSize set the object size, the given size should be written afterwards
-func (o *Object) SetSize(s int64) { o.size = s }
+func (o *Object) SetSize(s int64) { o.sz = s }
+
+// Content returns the contents of the object
+func (o *Object) Content() []byte { return o.cont }
// Reader returns a core.ObjectReader used to read the object's content.
func (o *Object) Reader() (core.ObjectReader, error) {
- return ioutil.NopCloser(bytes.NewBuffer(o.content)), nil
+ return ioutil.NopCloser(bytes.NewBuffer(o.cont)), nil
}
// Writer returns a core.ObjectWriter used to write the object's content.
@@ -50,7 +63,7 @@ func (o *Object) Writer() (core.ObjectWriter, error) {
}
func (o *Object) Write(p []byte) (n int, err error) {
- o.content = append(o.content, p...)
+ o.cont = append(o.cont, p...)
return len(p), nil
}