private void transferComplete(ShardFiles shardFiles) {
        _log.debug("Transfer complete: id={}, file={}", _taskId, shardFiles.getFirstFile());
        closeShardFiles(shardFiles);
        _openTransfers.dec();
    }
private void transferComplete ( ShardFiles shardFiles ) { _log . debug ( "Transfer complete: id={}, file={}" , _taskId , shardFiles . getFirstFile ( ) ) ; closeShardFiles ( shardFiles ) ; _openTransfers . dec ( ) ; }
Called when a shard file has been transferred, successfully or otherwise.  This also closes the ShardFiles.