private void AccessStreamFromPath(ComStorage storage, string path, bool writable,
bool createIfNotExist, Action <ComStream> action, STGM mode = STGM.STGM_SHARE_EXCLUSIVE)
{
var parentIndex = path.IndexOf('\\');
if (parentIndex == -1)
{
IStream stream = null;
try
{
stream = storage.OpenStream(path, mode);
}
catch
{
if (createIfNotExist)
{
stream = storage.CreateStream(path);
}
else
{
throw;
}
}
using (var comStream = new ComStream(stream, writable))
{
action.Invoke(comStream);
}
}
else
{
var subStorageName = path.Substring(0, parentIndex);
IStorage subStorage;
try
{
subStorage = storage.OpenStorage(subStorageName, mode);
}
catch
{
if (createIfNotExist)
{
subStorage = storage.CreateStorage(subStorageName);
}
else
{
throw;
}
}
using (var subComStorage = new ComStorage(subStorage, false))
{
var nextLevelPath = path.Substring(parentIndex + 1);
AccessStreamFromPath(subComStorage, nextLevelPath, writable, createIfNotExist, action);
}
}
}
private static void AddComment(IStorage storage, string text)
{
var wm = new Comment()
{
Text = text,
Author = Environment.UserName,
Date = DateTime.Now
};
using (var comStorage = new ComStorage(storage, true))
{
var stream = comStorage.CreateStream($"Comment{comStorage.EnumElements().Count() + 1}");
using (var comStream = new ComStream(stream, true))
{
var ser = new XmlSerializer(wm.GetType());
ser.Serialize(comStream, wm);
}
}
Console.WriteLine("Comment is added");
}