public ISnapshotRestore Deserialize(ICommitedSnapshot commitedSnapshot)
{
var metadata = _textSerializer.Deserialize <Metadata>(commitedSnapshot.SerializedMetadata);
var snapshotClrType = metadata.GetValue(MetadataKeys.SnapshotClrType, (value) => value.ToString());
var snapshot = (ISnapshot)_textSerializer.Deserialize(commitedSnapshot.SerializedData, snapshotClrType);
return(new SnapshotRestore(commitedSnapshot.AggregateId, commitedSnapshot.AggregateVersion, snapshot, metadata));
}
public async Task <ICommitedSnapshot> GetLatestSnapshotByIdAsync(Guid aggregateId)
{
var command = Connection.CreateCommand();
command.CommandText = "SELECT AggregateId, Version, Body, Metadatas FROM Snapshots WHERE AggregateId = @AggregateId ORDER BY Version DESC LIMIT 1";
command.Parameters.AddWithValue("@AggregateId", aggregateId);
EnsureOpenedConnection();
ICommitedSnapshot snapshot = null;
using (command)
using (var sqlReader = await command.ExecuteReaderAsync().ConfigureAwait(false))
{
while (await sqlReader.ReadAsync())
{
snapshot = new SqliteCommitedSnapshot(sqlReader.GetGuid(0), sqlReader.GetInt32(1), sqlReader.GetString(2), sqlReader.GetString(3));
break;
}
}
return(snapshot);
}