public void UpdateFromEntry(EntryInfo entity)
{
this.ID = entity.ID;
this.FileName = Path.GetFileNameWithoutExtension(entity.FileName);
this.FileExtension = Path.GetExtension(entity.FileName).Replace(".", "");
this.FileLength = entity.FileLength;
}
private static IndexNode BinaryInsertNode(IndexLink baseLink, IndexNode baseNode, EntryInfo entry, Engine engine)
{
IndexUnit pageIndex = engine.GetFreeIndexPage();
IndexNode newNode = pageIndex.Nodes[pageIndex.NodeIndex];
baseLink.PageID = pageIndex.UnitID;
baseLink.Index = pageIndex.NodeIndex;
newNode.UpdateFromEntry(entry);
newNode.DataPageID = DataFactory.GetStartDataPageID(engine);
if (pageIndex.UnitID != baseNode.IndexPage.UnitID)
{
engine.CacheIndexPage.AddPage(baseNode.IndexPage, true);
}
engine.CacheIndexPage.AddPage(pageIndex, true);
return newNode;
}
public static IndexNode BinaryInsert(EntryInfo target, IndexNode baseNode, Engine engine)
{
int dif = baseNode.ID.CompareTo(target.ID);
if (dif == 1)
{
if (baseNode.Right.IsEmpty)
{
return BinaryInsertNode(baseNode.Right, baseNode, target, engine);
}
return BinaryInsert(target, GetChildIndexNode(baseNode.Right, engine), engine);
}
if (dif != -1)
{
throw new FileDBException("Same GUID?!?");
}
if (baseNode.Left.IsEmpty)
{
return BinaryInsertNode(baseNode.Left, baseNode, target, engine);
}
return BinaryInsert(target, GetChildIndexNode(baseNode.Left, engine), engine);
}
public EntryInfo Store(string fileName, Stream input)
{
EntryInfo entry = new EntryInfo(fileName);
this._engine.Write(entry, input);
return entry;
}
internal void Store(EntryInfo entry, Stream input)
{
this._engine.Write(entry, input);
}
public EntryInfo Save(EntryInfo i, string content)
{
EntryInfo rlt = null;
EntryInfo info = Search(i.ID);
if (info != null)
{
rlt = Save(i.FileName, content);
Delete(i.ID);
}
return rlt;
}
public string Load(EntryInfo entry)
{
MemoryStream stream = new MemoryStream();
EntryInfo info = Read(entry.ID, stream);
string rlt = Encoding.Unicode.GetString(stream.ToArray());
return rlt;
}
public void Write(EntryInfo entry, Stream stream)
{
IndexNode rootIndexNode = IndexFactory.GetRootIndexNode(this);
IndexNode indexNode = IndexFactory.BinaryInsert(entry, rootIndexNode, this);
DataFactory.InsertFile(indexNode, stream, this);
entry.FileLength = indexNode.FileLength;
indexNode.IsDeleted = false;
this.Header.IsDirty = true;
}
public EntryInfo Read(Guid id, Stream stream)
{
IndexNode indexNode = this.Search(id);
if (indexNode == null)
{
return null;
}
EntryInfo entry = new EntryInfo(indexNode);
DataFactory.ReadFile(indexNode, stream, this);
return entry;
}
