/// <summary>
/// Load a persisted <see cref="IModel"/> instance from disk.
/// </summary>
/// <typeparam name="T"> The type of the model. </typeparam>
/// <param name="path"> The path to the persisted model file on disk. </param>
/// <param name="ignoreCache">
/// True if the internal cache should be ignored, forcing a reload of the model from disk, false otherwise.
/// </param>
/// <returns> The persisted <see cref="IModel"/> instance. </returns>
public async Task <T> LoadAsync <T>(string path, bool ignoreCache = false)
where T : IModel
{
if (ignoreCache)
{
var(id, data) = await ModelReader.LoadFromAsync(path);
if (ModelFactories.TryGetValue(id, out var modelFactory))
{
var model = await modelFactory.CreateAsnyc(data);
return((T)model);
}
}
else
{
if (Cache.TryGetValue(path, out var model))
{
return((T)model);
}
await SyncLock.WaitAsync();
try
{
if (Cache.TryGetValue(path, out model))
{
return((T)model);
}
var(id, data) = await ModelReader.LoadFromAsync(path);
if (ModelFactories.TryGetValue(id, out var modelFactory))
{
model = await modelFactory.CreateAsnyc(data);
Cache.Add(path, model);
return((T)model);
}
}
finally
{
SyncLock.Release();
}
}
// ToDo: ExceptionHandling
return(default(T));
}
