public override async Task <FileWeightsReply> GetFileWeights(GetFileWeightsRequest request, ServerCallContext context)
{
var version = await _cache.GetStringAsync(FileWeightsVersionCacheKey(request.RootName));
if (string.IsNullOrWhiteSpace(version) || !await _contentService.Existed(version))
{
var reply = await GetFileWeightsInternal(request);
return(reply);
}
else
{
var reply = new FileWeightsReply {
Version = version
};
return(reply);
}
}
private async Task <FileWeightsReply> GetFileWeightsInternal(GetFileWeightsRequest request)
{
var reply = new FileWeightsReply();
if (string.IsNullOrWhiteSpace(request.RootName))
{
reply.Error = Error.NoSuchEntity;
return(reply);
}
var path = PathSep + request.RootName;
var folder = await _service.All().Where(k => k.Name == request.RootName && k.Path == path && k.Type == (int)FileType.Folder)
.FirstOrDefaultAsync();
if (folder == null)
{
reply.Error = Error.NoSuchEntity;
return(reply);
}
var pathStart = folder.Path + PathSep;
var weights = await _service.All().Where(p => p.Type == (int)FileType.Normal && p.Path.StartsWith(pathStart)).Select(f => new { f.Name, f.Weight })
.ToArrayAsync();
foreach (var w in weights)
{
reply.Weights.Add(w.Name.ToString(), w.Weight ?? 0);
}
var codec = new MapField <string, int> .Codec(FieldCodec.ForString(0), FieldCodec.ForInt32(1), 0);
var version = await _contentService.Add(_cachesGroup, fs =>
{
using (var s = new CodedOutputStream(fs))
{
reply.WriteTo(s);
}
return(Task.FromResult(true));
}, "bin");
await _cache.SetStringAsync(FileWeightsVersionCacheKey(request.RootName), version);
return(reply);
}
