protected override CBlopOutputStream NewBlopOutputStream(CBlop aBlop)
{
var aFileInfo = this.GetObjectFileInfo(aBlop);
var aStream = File.OpenWrite(aFileInfo.FullName);
var aBlopOutputStream = new CFileSystemBlopOutputStream(aStream);
return(aBlopOutputStream);
}
internal override long GetBlopLength(CBlop aBlop)
{
var aFileInfo = this.GetObjectFileInfo(aBlop);
var aLength = aFileInfo.Exists
? aFileInfo.Length
: 0
;
return(aLength);
}
internal void VisitSave(CBlop aBlop, Stream aStream)
{
if (aBlop.IsLocallyDeleted)
{
this.Delete(aBlop);
}
else
{
using (var aBlopOutputStream = this.NewBlopOutputStream(aBlop))
{
aStream.CopyTo(aBlopOutputStream.Stream);
aBlopOutputStream.Commit();
}
}
}
internal override Stream NewBlopInputStream(CBlop aBlop)
{
var aFileInfo = this.GetObjectFileInfo(aBlop);
if (aFileInfo.IsNullRef())
{
return(Stream.Null);
}
aFileInfo.Refresh();
var aStream = aFileInfo.Exists
? (Stream)File.OpenRead(aFileInfo.FullName)
: Stream.Null
;
return(aStream);
}
protected override void Delete(CBlop aBlop)
{
this.GetObjectFileInfo(aBlop).Delete();
}
public override void Load(CBlop aBlop)
{
// The blop will request the input stream or the length as soon as it is used.
// Not sure if we need some special actions for databases.
}
public abstract void Load(CBlop aBlop);
protected override CBlopOutputStream NewBlopOutputStream(CBlop aBlop) => throw new InvalidOperationException();
internal override Stream NewBlopInputStream(CBlop aBlop) => Stream.Null;
internal override long GetBlopLength(CBlop aBlop) => 0;
protected override void Delete(CBlop aBlop) => throw new InvalidOperationException();
public override void Load(CBlop aBlop) => throw new InvalidOperationException();
protected abstract void Delete(CBlop aBlop);
protected abstract CBlopOutputStream NewBlopOutputStream(CBlop aBlop);
internal abstract Stream NewBlopInputStream(CBlop aBlop);
internal abstract long GetBlopLength(CBlop aBlop);
