public async Task AddBatchAsync(IEnumerable <TemporaryExposureKey> keys)
{
if (keys?.Any() != true)
{
return;
}
// Batch up the keys and save into temporary files
var sequence = keys;
while (sequence.Any())
{
var batch = sequence.Take(MaxKeysPerFile);
sequence = sequence.Skip(MaxKeysPerFile);
var file = new TemporaryExposureKeyBatch();
file.Key.AddRange(batch.Select(k => new TemporaryExposureKeyBatchKey
{
KeyData = ByteString.CopyFrom(k.KeyData),
RollingStartNumber = (uint)k.RollingStartLong,
RollingPeriod = (uint)(k.RollingDuration.TotalMinutes / 10.0),
TransmissionRiskLevel = (int)k.TransmissionRiskLevel,
}));
await AddBatchAsync(file);
}
}
public Task AddBatchAsync(TemporaryExposureKeyBatch file)
{
if (file == null || file.Key == null || file.Key.Count <= 0)
{
return(Task.CompletedTask);
}
if (!Directory.Exists(cacheRoot))
{
Directory.CreateDirectory(cacheRoot);
}
var batchFile = Path.Combine(cacheRoot, Guid.NewGuid().ToString());
using var stream = File.Create(batchFile);
using var coded = new CodedOutputStream(stream);
file.WriteTo(coded);
Files.Add(batchFile);
return(Task.CompletedTask);
}
