private void OnChanged(IPropertyChanged changed)
{
lock (locker)
{
if (isSuppressingChange)
{
return;
}
isSuppressingChange = true;
}
var value = changed.NewValue;
if (value == null)
{
Object = null;
Directory.DeleteTree();
Directory.Refresh();
}
else
{
Object = new DbObjectNode(Database, (IRxObject)changed.NewValue, Directory);
}
lock (locker)
{
isSuppressingChange = false;
}
}
private void Load()
{
lock (locker)
{
if (isSuppressingChange)
{
return;
}
isSuppressingChange = true;
}
if (Object == null)
{
Database.Action(() =>
{
var obj = (IRxObject)Activator.CreateInstance(MetaData.Property.PropertyType);
Object = new DbObjectNode(Database, obj, Directory);
MetaData.Property.SetValue(Container, obj);
});
}
lock (locker)
{
isSuppressingChange = false;
}
}
public SexyDatabase(string folder)
{
node = new DbObjectNode(this, this, new DirectoryInfo(folder));
var fileSystemWatcher = new FileSystemWatcher(folder, "*.*");
fileSystemWatcher.Changed += FileChanged;
fileSystemWatcher.Created += FileExistance;
fileSystemWatcher.Deleted += FileExistance;
fileSystemWatcher.IncludeSubdirectories = true;
fileSystemWatcher.NotifyFilter = NotifyFilters.LastWrite | NotifyFilters.FileName | NotifyFilters.DirectoryName;
fileSystemWatcher.EnableRaisingEvents = true;
}
protected override void OnFileSystemChanged(FileSystemEventArgs args)
{
base.OnFileSystemChanged(args);
lock (locker)
{
changeMode = DbChangeMode.Load;
try
{
if (args.FullPath != Directory.FullName)
{
var relativePath = args.FullPath.Substring(Directory.FullName.Length).TrimStart(Path.DirectorySeparatorChar);
var parts = relativePath.Split(Path.DirectorySeparatorChar);
if (parts.Length == 1)
{
switch (args.ChangeType)
{
case WatcherChangeTypes.Created:
int index;
if (int.TryParse(relativePath, out index))
{
if (index >= ItemNodes.Count || ItemNodes[index] == null)
{
var obj = (IRxObject)Activator.CreateInstance(MetaData.ElementType);
var node = new DbObjectNode(Database, obj, new DirectoryInfo(Path.Combine(Directory.FullName, index.ToString())));
while (index > ItemNodes.Count)
{
ItemNodes.Add(null);
}
while (index > List.Count)
{
List.Add(null);
}
if (index < ItemNodes.Count)
{
ItemNodes[index] = node;
}
else
{
ItemNodes.Add(node);
}
if (index < List.Count)
{
List[index] = obj;
}
else
{
List.Add(obj);
}
}
}
break;
}
}
}
}
finally
{
changeMode = DbChangeMode.None;
}
}
}