public Task <Errorable <TagID> > ResolvePartialID(TagID.Partial id)
{
FileInfo[] fis = system.getPathsByPartialID(id);
if (fis.Length == 1)
{
return(Task.FromResult(TagID.TryParse(id.ToString().Substring(0, 2) + fis[0].Name)));
}
if (fis.Length == 0)
{
return(Task.FromResult((Errorable <TagID>) new TagIDPartialNoResolutionError(id)));
}
return(Task.FromResult((Errorable <TagID>) new TagIDPartialAmbiguousResolutionError(id, fis.SelectAsArray(f => TagID.TryParse(id.ToString().Substring(0, 2) + f.Name).Value))));
}
public async Task <Errorable <TagID> > ResolvePartialID(TagID.Partial id)
{
var resolvedIDs = await db.ExecuteListQueryAsync(new ResolvePartialTagID(id));
if (resolvedIDs.Length == 1)
{
return(resolvedIDs[0]);
}
if (resolvedIDs.Length == 0)
{
return(new TagIDPartialNoResolutionError(id));
}
return(new TagIDPartialAmbiguousResolutionError(id, resolvedIDs));
}
internal FileInfo[] getPathsByPartialID(TagID.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 ResolvePartialTagID(TagID.Partial id)
{
this._id = id;
}
public TagIDPartialAmbiguousResolutionError(TagID.Partial id, params TagID[] ids) : base("Partial TagID {0} resolves to multiple TagID", id, ids)
{
}
public TagIDPartialNoResolutionError(TagID.Partial id) : base("Partial TagID {0} does not resolve to a TagID", id)
{
}
