public Task <Errorable <TreeID> > ResolvePartialID(TreeID.Partial id)
{
FileInfo[] fis = system.getPathsByPartialID(id);
if (fis.Length == 1)
{
return(Task.FromResult(TreeID.TryParse(id.ToString().Substring(0, 2) + fis[0].Name)));
}
if (fis.Length == 0)
{
return(Task.FromResult((Errorable <TreeID>) new TreeIDPartialNoResolutionError(id)));
}
return(Task.FromResult((Errorable <TreeID>) new TreeIDPartialAmbiguousResolutionError(id, fis.SelectAsArray(f => TreeID.TryParse(id.ToString().Substring(0, 2) + f.Name).Value))));
}
public async Task <Errorable <TreeID> > ResolvePartialID(TreeID.Partial id)
{
var resolvedIDs = await db.ExecuteListQueryAsync(new ResolvePartialTreeID(id));
if (resolvedIDs.Length == 1)
{
return(resolvedIDs[0]);
}
if (resolvedIDs.Length == 0)
{
return(new TreeIDPartialNoResolutionError(id));
}
return(new TreeIDPartialAmbiguousResolutionError(id, resolvedIDs));
}
internal FileInfo[] getPathsByPartialID(TreeID.Partial partial)
{
DirectoryInfo objDir = getObjectsDirectory();
string idStr = partial.ToString();
string path = System.IO.Path.Combine(objDir.FullName, idStr.Substring(0, 2));
var di = new DirectoryInfo(path);
if (!di.Exists)
{
return(new FileInfo[0]);
}
return(di.GetFiles(idStr.Substring(2) + "*"));
}
public TreeIDPartialAmbiguousResolutionError(TreeID.Partial id, params TreeID[] ids) : base("Partial TreeID {0} resolves to multiple TreeID", id, ids)
{
}
public TreeIDPartialNoResolutionError(TreeID.Partial id) : base("Partial TreeID {0} does not resolve to a TreeID", id)
{
}
public ResolvePartialTreeID(TreeID.Partial id)
{
this._id = id;
}