public static string PrintPayload(this UpdatesGrpcResponse update)
{
var result =
$"ClearTable={update.ClearTable}; TableName={update.TableName}; SyncPartitionId={update.ResetPartitionKey}; DownloadRows={update.DownloadRows} ";
if (update.DbRows == null)
{
return(result + "DbRows=null");
}
return(result + "DbRows.Length=" + update.DbRows.Count);
}
internal static async ValueTask <IGrpcConnectionUpdateCommand> HandleNewDataAsync(
this MyNoSqlGrpcReaderConnection connection, UpdatesGrpcResponse update)
{
connection.LastReceiveTime = DateTime.UtcNow;
if (update.TableName == null)
{
return(SkipItUpdateResult.Instance);
}
if (update.ClearTable)
{
return(new ClearTableUpdateResult(update.TableName));
}
if (update.DeleteRows != null)
{
return(new DeleteRowsCommand(update.TableName, update.DeleteRows.PartitionKey,
update.DeleteRows.RowKeys));
}
if (update.ResetPartitionKey != null)
{
var dbRows = await connection.DownloadPartitionAsync(update.TableName, update.ResetPartitionKey).ToListAsync();
return(new ResetPartitionUpdateCommand(update.TableName, update.ResetPartitionKey, dbRows));
}
if (update.DownloadRows != null)
{
var dbRows = await connection.MyNoSqlGrpcServerReader.SyncRowsAsync(new SyncRowsGrpcRequest
{
ConnectionId = connection.ConnectionId,
SnapshotId = update.DownloadRows,
TableName = update.TableName
}).ToListAsync();
return(new UpdateRowsCommand(update.TableName, dbRows));
}
if (update.DbRows != null)
{
return(new UpdateRowsCommand(update.TableName, update.DbRows));
}
throw new Exception("Unknown payload data. " + update.PrintPayload());
}
public static UpdatesGrpcResponse HandleDataToSync(this MyNoSqlReaderSession session, ISyncChangeEvent dataToSync, int maxPayloadSize)
{
var result = new UpdatesGrpcResponse();
if (dataToSync is ClearTableSyncEvent clearTableSyncEvent)
{
result.TableName = clearTableSyncEvent.TableName;
result.ClearTable = true;
return(result);
}
if (dataToSync is SyncPartitionEvent syncPartitionEvent)
{
result.TableName = syncPartitionEvent.TableName;
result.ResetPartitionKey = syncPartitionEvent.PartitionKey;
return(result);
}
if (dataToSync is SyncRowEvent syncRowEvent)
{
result.TableName = syncRowEvent.TableName;
if (syncRowEvent.PayLoadSize < maxPayloadSize)
{
result.DbRows = syncRowEvent.DbRows;
return(result);
}
result.DownloadRows = session.RowsToSync.AwaitPayload(syncRowEvent.DbRows);
return(result);
}
if (dataToSync is DeleteDbRowEvent deleteDbRowEvent)
{
result.TableName = deleteDbRowEvent.TableName;
result.DeleteRows =
new DeleteRowGrpcContract
{
PartitionKey = deleteDbRowEvent.PartitionKey,
RowKeys = deleteDbRowEvent.RowKeys
};
return(result);
}
return(result);
}
