权重 优先级 分单

/**
 * @Description: 查询总共待分单的数量
 * @Date: 9:13 2021/5/21
 */
public List<Ulapplication> getOrderList() {
    List<Ulapplication> list=new ArrayList<>();
    Ulapplication u1=new Ulapplication();
    u1.setId("1");
    Ulapplication u2=new Ulapplication();
    u2.setId("2");
    Ulapplication u3=new Ulapplication();
    u3.setId("3");
    Ulapplication u4=new Ulapplication();
    u4.setId("4");
    Ulapplication u5=new Ulapplication();
    u5.setId("5");
    Ulapplication u6=new Ulapplication();
    u6.setId("6");
    Ulapplication u7=new Ulapplication();
    u7.setId("7");
    Ulapplication u8=new Ulapplication();
    u8.setId("8");
    Ulapplication u9=new Ulapplication();
    u9.setId("9");
    Ulapplication u10=new Ulapplication();
    u10.setId("10");
    Ulapplication u11=new Ulapplication();
    u11.setId("11");
    list.add(u1);
    list.add(u2);
    list.add(u3);
    list.add(u4);
    list.add(u5);
    list.add(u6);
    list.add(u7);
    list.add(u8);
    list.add(u9);
    list.add(u10);
    list.add(u11);
    return list;
}

/**
 * @Description: 查询待分配的银行
 * @Date: 9:13 2021/5/21
 */
public List<ViUlbank> getBankList() {
    List<ViUlbank> list=new ArrayList<>();
    ViUlbank v1=new ViUlbank();
    v1.setBankcode("BBC");
    v1.setBankname("中国银行");
    short a=1;
    v1.setPriority(a);
    v1.setWeight(a);
    short start =1;
    short start2 =0;
    v1.setStatus(start);

    ViUlbank v2=new ViUlbank();
    v2.setBankcode("CCB");
    v2.setBankname("建设银行");
    short b=2;
    v2.setPriority(b);
    v2.setWeight(b);
    v2.setStatus(start);


    ViUlbank v3=new ViUlbank();
    v3.setBankcode("ABC");
    v3.setBankname("农业银行");
    short c=3;
    v3.setPriority(c);
    v3.setWeight(c);
    v3.setStatus(start);
    list.add(v2);
    list.add(v1);
    list.add(v3);
    return list;
}

/**
 * @Description: 查询待分配的银行
 * @Date: 9:13 2021/5/21
 */
public void getWaitBankList(Ulapplication entity) {
    //把已经分配的订单分配存入待推单
    UlWaitapplication dr =new UlWaitapplication();
}



private void lottery() {

    //未分配单子
    List<Ulapplication> orderList = getOrderList();
    //待分配银行
    List<ViUlbank> bankList = getBankList();
    //按照优先级排序
    bankList = bankList.stream()
            .sorted(Comparator.comparing(ViUlbank::getPriority).reversed().thenComparing(ViUlbank::getPriority))
            .collect(Collectors.toList());
    //定义结果返回集
    Map<String, Offset> userOffsetMap = new HashMap<>();
    //如果待推单大于0则执行方法
    if(orderList.size()>0){
        userOffsetMap = recursion(bankList, orderList, userOffsetMap);

    }

    for (String bankName : userOffsetMap.keySet()) {
        Offset offset = userOffsetMap.get(bankName);
        System.out.println("银行: " + bankName + ", 轮次: " + offset.getLunci()+ ", 优先级: " + offset.getPriority()+  ", 开关状态: " + offset.getStatus()+ ", 数量: " + offset.getCout());
    }

}

@Override
public WebApiResult Submenu() {
    return null;
}

public Map<String, Offset> recursion(List<ViUlbank> bankList,List<Ulapplication> orderList ,Map<String, Offset> userOffsetMap) {
    int j=0;
    for (ViUlbank viUlbank : bankList) {
        //判断银行的优先级是不是最高 还有开关是不是打开
        Optional<ViUlbank> max = bankList.stream().filter(e -> StringUtils.equals(String.valueOf(e.getStatus()),"1" )).max(Comparator.comparingLong(ViUlbank::getPriority));

        boolean flag = max.isPresent();
        //如果开关全部关闭 怎么判断轮次打开
        if(max.isPresent()){
            ViUlbank vi = max.get();
            //如果银行权重大于0 怎随机分配单子给银行
            if(vi.getWeight()>0){
                //如果当前待分配的订单总数小于权重 贼全部分配给该银行
                int size1 = orderList.size();
                if(vi.getWeight()>orderList.size()){
                    j =orderList.size();
                }else{
                    j =vi.getWeight();
                }

                //总的订单必须大于0
                if(orderList.size()>0){
                    for (int i=0;i<j;i++){
                        Random random = new Random();
                        //根据权重取随机订单
                        int index =random.nextInt(orderList.size());
                        Ulapplication dto = orderList.get(index);
                        //订单分配银行code
                        dto.setBankno(vi.getBankcode());
                        //把分配成功的订单给对应的银行生成银行待推单
                        getWaitBankList(dto);
                        //移除订单中已经分配
                        orderList.remove(index);

                    }
                    //银行轮次加 1
                    vi.setAllotTurn(vi.getAllotTurn()==null?(short)1:(short)(vi.getAllotTurn()+1));
                    //该轮次 该银行的权重全部分配完 则把状态关闭
                    if(j==vi.getWeight()){
                        vi.setStatus((short)0);
                    }
                    int k=0;
                    if(userOffsetMap.get(vi.getBankname())!=null){
                         k = (short)(userOffsetMap.get(vi.getBankname()).getCout() +  j);
                    }

                    userOffsetMap.put(vi.getBankname(), new Offset(vi.getAllotTurn(),vi.getStatus(), (short) (k==0?j:k),vi.getPriority()));
                }
            }
        }else{
            short status=1;
            //判断银行的优先级是不是最高 还有开关是不是打开
            bankList = bankList.stream()
                    .filter(e -> StringUtils.equals(String.valueOf(e.getStatus()),"0" ))
                    .sorted(Comparator.comparing(ViUlbank::getPriority).reversed().thenComparing(ViUlbank::getPriority))
                    .collect(Collectors.toList());
            //修改开关状态为 1 打开状态
            for (ViUlbank e : bankList) {
                e.setStatus(status);
            }
            //改变状态后继续执行
            recursion(bankList, orderList, userOffsetMap);
        }

    }

    if(orderList.size()>0){
        recursion(bankList, orderList, userOffsetMap);
    }
    return userOffsetMap;

}


@Data
class Offset {

    private Short lunci;
    private Short status;
    private Short cout;
    private Short priority;

    public Offset(Short lunci, Short status, Short cout,Short priority) {
        this.lunci = lunci;
        this.status = status;
        this.cout = cout;
        this.priority = priority;
    }


}

标签：ViUlbank,优先级,分单,权重,orderList,list,add,Ulapplication,new
来源： https://blog.csdn.net/weixin_41169393/article/details/117127577