轮循算法的实现

/**
* 通过轮训算法选举mqttserver节点
* @param nodeList
* @return
*/
private NodeInfo getNodeByRoundRobin(List<NodeInfo> nodeList) {
Assert.notEmpty(nodeList,"nodeList can not be empty !");
int index=getNextInteger()%nodeList.size();
return nodeList.get(index);
}

private int getNextInteger(){
int i=atomicInteger.get();
if( i>1024 ){
atomicInteger.set(0);
}
return atomicInteger.addAndGet(1);
}