public Stream GetContents()
{
Stream dataFile = new FileStream(item.DataPath,
FileMode.Open, FileAccess.Read, FileShare.Read);
var itemFile = item.ItemFile;
var lastRev = itemFile.GetLastRevision();
if (lastRev != null)
{
IEnumerable <DeltaOperation> deltaOps = null;
while (lastRev != null && lastRev.Revision > this.Version)
{
var branchRev = lastRev as BranchRevisionRecord;
if (branchRev != null)
{
var branchRevId = branchRev.Revision;
var itemPath = item.Database.GetDataPath(branchRev.BranchFile);
itemFile = new ItemFile(itemPath, item.Database.Encoding);
lastRev = itemFile.GetLastRevision();
while (lastRev != null && lastRev.Revision >= branchRevId)
{
lastRev = itemFile.GetPreviousRevision(lastRev);
}
}
else
{
var editRev = lastRev as EditRevisionRecord;
if (editRev != null)
{
var delta = itemFile.GetPreviousDelta(editRev);
if (delta != null)
{
var curDeltaOps = delta.Operations;
deltaOps = (deltaOps == null) ? curDeltaOps :
DeltaUtil.Merge(deltaOps, curDeltaOps);
}
}
lastRev = itemFile.GetPreviousRevision(lastRev);
}
}
if (deltaOps != null)
{
dataFile = new DeltaStream(dataFile, deltaOps);
}
}
return(dataFile);
}
