byte[] bobyByte = delivery.getBody();
String bodyStr = new String(bobyByte, this.getEncoding());//"US-ASCII", "utf-8"
if(dispatchJob(this.getName(), bodyStr)) {
channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
completedJobs.incrementAndGet();
_logger.info("ack meg:" + delivery.getEnvelope().getDeliveryTag());
} else {
channel.basicReject(delivery.getEnvelope().getDeliveryTag(), true);