diff options
Diffstat (limited to 'storage/memory/object.go')
-rw-r--r-- | storage/memory/object.go | 35 |
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 } |