public Task ClearStateAsync(string grainType, Orleans.Runtime.GrainReference grainReference, IGrainState grainState)
{
var fileInfo = GetFileInfo(grainType, grainReference);
fileInfo.Delete();
return(TaskDone.Done);
}
public Task WriteStateAsync(string grainType, Orleans.Runtime.GrainReference grainReference, Orleans.IGrainState grainState)
{
var json = JsonConvert.SerializeObject(grainState.AsDictionary());
var fileInfo = GetFileInfo(grainType, grainReference);
using (var stream = fileInfo.OpenWrite())
using (var writer = new StreamWriter(stream))
{
return(writer.WriteAsync(json));
}
}
public async Task ReadStateAsync(string grainType, Orleans.Runtime.GrainReference grainReference, Orleans.IGrainState grainState)
{
var fileInfo = GetFileInfo(grainType, grainReference);
if (!fileInfo.Exists)
{
return;
}
using (var stream = fileInfo.OpenText())
{
var json = await stream.ReadToEndAsync();
var data = JsonConvert.DeserializeObject <Dictionary <string, object> >(json);
grainState.SetAll(data);
}
}
FileInfo GetFileInfo(string grainType, Orleans.Runtime.GrainReference grainReference)
{
return(new FileInfo(Path.Combine(directory, string.Format("{0}-{1}.json", grainType, grainReference.ToKeyString()))));
}