1004 lines
38 KiB
Java
1004 lines
38 KiB
Java
package com.tenwa.reckon.util;
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import java.math.BigDecimal;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Hashtable;
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import java.util.List;
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import java.util.Map;
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import com.amarsoft.are.jbo.BizObject;
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import com.tenwa.reckon.bean.CashConfigBean;
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import com.tenwa.reckon.bean.CashDetailsBean;
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import com.tenwa.reckon.bean.ConditionBean;
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import com.tenwa.reckon.bean.FundRentPlanBean;
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import com.tenwa.reckon.bean.TabCalBean;
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import com.tenwa.reckon.constant.Scale;
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import com.tenwa.reckon.exception.LeasingException;
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/**
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*
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* @author SHIHONGFEI
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* @version 1.0
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* @copyright (C) TENWA 2011
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* @date 2011-2-17
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* @desc ( 现金流处理)
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*/
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public class IrrTools {
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/**
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*
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* ( 根据配置信息构建现金流执行语句,如有其它现金流信息的可在此构建时修改)
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*
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* @param cfgb_list
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* @param tcb
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* @return
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*/
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public static String getCfgCashSqlByCfgAndTb(List<CashConfigBean> cfgb_list, TabCalBean tcb) {
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String sql = " ";
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for (CashConfigBean ccfb : cfgb_list) {
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sql += " select " + (ccfb.getFee_name().equals("") ? "'0'" : ccfb.getFee_name()) + " as feeName,'" + ccfb.getFee_name_des() + "' as feeNameDes,'" + ccfb.getInOrOut() + "' as inOrout," + ccfb.getOccu_date() + " as sdate,'" + tcb.getContOrProjCValue() + "' as cOrp";
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sql += " from " + tcb.getCondition_tb() + " where " + tcb.getContOrProjCName() + "='" + tcb.getContOrProjCValue() + "' and flow_unid='" + tcb.getDocId();
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sql += "' union ";
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}
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// 如果是合并起租 要加上之前的剩余本金最为现金流的组成部分
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if (tcb.getIs_merger().equals("是")) {
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sql += "";
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}
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if (sql.indexOf("union") > -1) {
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sql = sql.substring(0, sql.length() - 6);
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}
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sql = "select * from (" + sql + ") rrss where case when feeName is null then 0 else feeName end <>0";
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sql += " order by sdate asc";
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return sql;
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}
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/**
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*
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* ( 得到去除重复的时间集合，返回一个含有一个时间，对应他的现金集合的下标的键值对 ,如按天则substring(0, 7)需处理)
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*
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* @param ccfbList
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* @return
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*/
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public static Hashtable<String, String> remoRepDate(List<CashDetailsBean> ccfbList, int dtlen) {
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Hashtable<String, String> htDate = new Hashtable<String, String>();
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String str = "";
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for (int i = 0; i < ccfbList.size(); i++) {
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CashDetailsBean ccfb = ccfbList.get(i);
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if (!htDate.containsKey(ccfb.getPlanDate().substring(0, dtlen))) {
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htDate.put(ccfb.getPlanDate().toString().substring(0, dtlen), String.valueOf(i));
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} else {
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str = (String) htDate.get(ccfb.getPlanDate().toString().substring(0, dtlen));
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str = str + "," + String.valueOf(i);
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htDate.put(ccfb.getPlanDate().toString().substring(0, dtlen), str);
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}
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}
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return htDate;
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}
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/**
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*
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* ( 根据时间得到新的现金流集合 )
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*
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* @param ht_date 现金流对应日期
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* @param cdbList 现金流集合
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* @return
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*/
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public static List<CashDetailsBean> getNetCashByDate(Hashtable<String, String> ht_date, List<CashDetailsBean> cdbList) {
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List<CashDetailsBean> listNew = new ArrayList<CashDetailsBean>();
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Object[] obj = ht_date.keySet().toArray();
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Arrays.sort(obj); // 按键值排序
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for (int i = 0; i < obj.length; i++) {
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// logger.debug("=key=" + obj[i].toString());
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// logger.debug("=value=" + ht_date.get(obj[i].toString()));
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String[] strArray = ht_date.get(obj[i].toString()).toString().split(",");
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// 总金额,得到同一时间的总金额d
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// 构建新的现金流明细
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CashDetailsBean cdb = new CashDetailsBean();
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String quot_id = "";// 报价编号
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String contract_id = ""; // 合同号
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String plan_date = obj[i].toString();// 日期
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String fund_in = "0"; // 流入量
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String fund_in_details = ""; // 流入量清单
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String fund_out = "0"; // 流出量
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String fund_out_details = ""; // 流出量清单
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String net_flow = "0"; // 净流量
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for (int j = 0; j < strArray.length; j++) {
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// cdbList
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CashDetailsBean cdbOld = cdbList.get(Integer.parseInt(strArray[j].toString()));
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contract_id = cdbOld.getContractId();
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fund_in = new BigDecimal(fund_in).add(new BigDecimal(cdbOld.getFundIn())).toString();
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fund_in_details = fund_in_details + cdbOld.getFundInDetails();
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fund_out = new BigDecimal(fund_out).add(new BigDecimal(cdbOld.getFundOut())).toString();
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fund_out_details = fund_out_details + cdbOld.getFundOutDetails();
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net_flow = new BigDecimal(fund_in).subtract(new BigDecimal(fund_out)).toString();
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quot_id = cdbOld.getQuotId();
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}
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cdb.setContractId(contract_id);
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cdb.setPlanDate(plan_date);
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cdb.setFundIn(fund_in);
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cdb.setFundInDetails(fund_in_details);
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cdb.setFundOut(fund_out);
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cdb.setFundOutDetails(fund_out_details);
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cdb.setNetFlow(net_flow);
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cdb.setQuotId(quot_id);
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listNew.add(cdb);
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}
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// 返回新的现金流明细
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return listNew;
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}
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/**
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* 根据租金现金流，偿还间隔，租金间隔，年还款次数测算irr
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*
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* @param l_inflow_pour所有现金流入流出
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* @param chjg偿还间隔
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* @param zjjg租金间隔
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* @param nhkcs年还款次数
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* @return
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*/
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public static String getIRR(List<String> l_inflow_pour, String chjg, String zjjg, String nhkcs) {
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chjg = chjg.equals("") ? "0" : chjg;
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zjjg = zjjg.equals("") ? "0" : zjjg;
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nhkcs = nhkcs.equals("") ? "0" : nhkcs;
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// 参数说明：l_inflow_pour=所有现金流入流出（流入为正，流出为负），chjg=偿还间隔，
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// zjjg=租金间隔,nhkcs=年还款次数
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// BigDecimal year_number = new BigDecimal("3");//偿还间隔
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BigDecimal year_number = new BigDecimal(chjg);// 偿还间隔
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// BigDecimal rent_interval = new BigDecimal("3");//每期租金间隔
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BigDecimal rent_interval = new BigDecimal(zjjg);// 每期租金间隔
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BigDecimal tmp = new BigDecimal("1");
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BigDecimal irr = new BigDecimal("0");
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BigDecimal tmp1 = new BigDecimal("0");
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BigDecimal tmp2 = new BigDecimal("1");
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BigDecimal bigdec_1 = new BigDecimal("1");
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BigDecimal bigdec_2 = new BigDecimal("2");
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int j = 0;
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try {
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while (tmp.abs().compareTo(new BigDecimal("0.000001")) == 1 && j < 100) {
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// logger.debug(NUM+"|"+j+"|tmp:"+tmp+":IRR_MIN:"+tmp1+"IRR:"+irr+"IRR_MAX:"+tmp2);
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tmp = new BigDecimal(l_inflow_pour.get(0).toString());
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for (int i = 1; i < l_inflow_pour.size(); i++) {
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tmp = tmp.add(new BigDecimal(l_inflow_pour.get(i).toString()).divide(new BigDecimal(Math.pow(irr.add(bigdec_1).doubleValue(), i)), 20, BigDecimal.ROUND_HALF_UP));
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}
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if (tmp.doubleValue() > 0) {
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tmp1 = irr;
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irr = irr.add(tmp2).divide(bigdec_2, 20, BigDecimal.ROUND_HALF_UP);
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}
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if (tmp.doubleValue() < 0) {
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tmp2 = irr;
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irr = irr.add(tmp1).divide(bigdec_2, 20, BigDecimal.ROUND_HALF_UP);
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}
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j++;
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}
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irr = irr.multiply(year_number).divide(rent_interval, 20, BigDecimal.ROUND_HALF_UP);
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// irr = irr.multiply(new BigDecimal("4"));
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// 2012-3-9 添加IRR递归计算
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// if (NUM < NUM_MAX) {// 在允许迭代次数之内
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// // 如果计算出来的IRR和本次预设的IRR最大值一样
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// // 则认为真实IRR比本次默认IRR大 可以通过把区间设置为上次IRR最小值和上次默认IRR值为区间再次计算
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// // 相反如果和最小值一样则把区间设置为默认值到最大值
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// BigDecimal temp_irr = new BigDecimal("2");
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// boolean dg = false;
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// if (irr.compareTo(IRR_MAX) == 0) {
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// NUM++;
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// IRR_MAX = IRR_MAX.divide(temp_irr, 20,
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// BigDecimal.ROUND_HALF_UP);
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// dg = true;
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// }
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// if (irr.compareTo(IRR_MIN) == 0) {
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// NUM++;
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// IRR_MIN = IRR_MAX.divide(temp_irr, 20,
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// BigDecimal.ROUND_HALF_UP);
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// dg = true;
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// }
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// if (dg) {
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// irr = new BigDecimal(getIRR(l_inflow_pour, chjg, zjjg,
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// nhkcs));
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// //logger.debug(NUM+":" + irr);
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// return irr.toString();
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// }
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// }
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irr = irr.multiply(new BigDecimal(nhkcs)).multiply(new BigDecimal(100)).setScale(Scale.GENERAL_RATE, BigDecimal.ROUND_HALF_UP);
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return irr.toString().equals("") ? "0" : irr.toString();
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} catch (Exception e) {
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e.printStackTrace();
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}
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return "0";
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}
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/**
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* XIRR计算公式 参数1 l_inflow_pour 是对于的现金流,参数2l_date 是对于的现金流时间 这个需要一一对于. <br>
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* 这个算法对于的是EXECL中的XIRR算法.可以用于精确到日的 日IRR计算
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*
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* @param l_inflow_pour
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* 现金流List
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* @param l_date
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* 对应的日期List
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* @return
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*/
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public static String getXIRROld(List<String> l_inflow_pour, List<String> l_date) {
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BigDecimal tmp = new BigDecimal("1");
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BigDecimal irr = new BigDecimal("0.5");
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BigDecimal tmp1 = new BigDecimal("0");
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BigDecimal tmp2 = new BigDecimal("1");
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BigDecimal bigdec_1 = new BigDecimal("1");
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BigDecimal bigdec_2 = new BigDecimal("2");
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int j = 0;
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try {
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while (tmp.abs().doubleValue() > 0.0000000001 && j < 200) {
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tmp = new BigDecimal(l_inflow_pour.get(0).toString());
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String date0 = l_date.get(0).toString();
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for (int i = 1; i < l_inflow_pour.size(); i++) {
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Long quot = DateTools.getDateDiff(l_date.get(i).toString(), date0);
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BigDecimal rate2 = new BigDecimal(quot / 365.0);
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tmp = tmp.add(new BigDecimal(l_inflow_pour.get(i).toString()).divide(new BigDecimal(Math.pow(irr.add(bigdec_1).doubleValue(), rate2.doubleValue())), 20, BigDecimal.ROUND_HALF_UP));
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}
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if (tmp.doubleValue() > 0) {
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tmp1 = irr;
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irr = irr.add(tmp2).divide(bigdec_2, 20, BigDecimal.ROUND_HALF_UP);
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}
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if (tmp.doubleValue() < 0) {
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tmp2 = irr;
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irr = irr.add(tmp1).divide(bigdec_2, 20, BigDecimal.ROUND_HALF_UP);
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}
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j++;
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}
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return irr.toString().equals("") ? "0" : irr.toString();
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} catch (Exception e) {
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e.printStackTrace();
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}
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return "0";
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}
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/**
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*
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* ( 得到保证金抵扣现金流明细)
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*
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* @param rent_list
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* @param caut_money
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* @return
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*/
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public static List<CashDetailsBean> getRentDetailsByDeduct(List<CashDetailsBean> cdbList, String caut_money) {
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double d_total = 0;
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double dcaut = Double.parseDouble(caut_money);
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String int_s = "";// 用于记录下标的
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if (Double.parseDouble(caut_money) > 0) {
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// 得到可以抵扣的列表的下标值
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int_s = getIdsByDeduct(cdbList, caut_money, d_total, int_s);
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String[] i_array = int_s.split(",");// 保存可以抵扣的租金下标
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for (int j = 0; j < i_array.length; j++) {
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CashDetailsBean cdb = cdbList.get(Integer.parseInt(i_array[j]));
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double temp_rent = Double.parseDouble(cdb.getFundIn());// 用于保存的租金
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if (Double.parseDouble(cdb.getFundIn()) < dcaut && !"补0".equals(cdb.getFundInDetails()) ) { // 如果租金小于保证金抵扣金额
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// 现金流明细处理
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cdb.setFundOut(cdb.getFundIn());
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cdb.setFundOutDetails(cdb.getFundOutDetails() + "保证金抵扣：" + NumTools.formatNumberDouble(Double.parseDouble(NumTools.formatNumberDoubleScale(cdb.getFundIn(), 2))) + "；");
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cdb.setNetFlow("0");
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// 重新设置该元素的值
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cdbList.set(Integer.parseInt(i_array[j]), cdb);
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} else {
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if (dcaut > 0 && !"补0".equals(cdb.getFundInDetails()) ) {//保证金可抵扣金额大于0
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// 现金流明细处理
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cdb.setFundOut(String.valueOf(dcaut));
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cdb.setFundOutDetails(cdb.getFundOutDetails() + "保证金抵扣：" + NumTools.formatNumberDouble(Double.parseDouble(NumTools.formatNumberDoubleScale(String.valueOf(dcaut), 2))) + "；");
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cdb.setNetFlow(String.valueOf(Double.parseDouble(cdb.getFundIn()) - dcaut));
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// 重新设置该元素的值
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cdbList.set(Integer.parseInt(i_array[j]), cdb);
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}
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}
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dcaut = dcaut - temp_rent;// 修改保证金抵扣的值
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}
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}
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return cdbList;
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}
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/**
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*
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* 保证金抵扣金额小于保证金金额 最后要做一笔流出 为保证金金额减去保证金抵扣金额)
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*
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* @param cdbList
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* 现金流
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* @param caution_money
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* 保证金
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* @param caution_deduction_money
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* 保证金抵扣金额
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* @return 返回处理完成的现金流
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*/
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public static List<CashDetailsBean> getRentDetailsByDeductOut(List<CashDetailsBean> cdbList, String caution_money, String caution_deduction_money) {
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double caution = Double.parseDouble(NumTools.getZeroStr(caution_money));
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double caution_deduction = Double.parseDouble(NumTools.getZeroStr(caution_deduction_money));
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double loss_money = caution - caution_deduction;
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if (loss_money > 0) {// 保证金金额大于保证金抵扣金额才进入此段
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// 得到最后一期现金流明细对象
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CashDetailsBean cdb = cdbList.get(cdbList.size() - 1);
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// 更新流入，净流量值
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// if (caution_deduction > 0) {// 保证金抵扣金额大于0时
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// 现金流明细处理
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cdb.setFundOut(String.valueOf((Double.parseDouble(cdb.getFundOut()) + loss_money)));
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cdb.setFundOutDetails(cdb.getFundOutDetails() + "保证金退还：" + NumTools.formatNumberDouble(Double.parseDouble(NumTools.formatNumberDoubleScale(String.valueOf(loss_money), 2))) + "；");
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cdb.setNetFlow(String.valueOf(Double.parseDouble(cdb.getFundIn()) - Double.parseDouble(cdb.getFundOut())));
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// 重新设置此元素的值
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cdbList.set(cdbList.size() - 1, cdb);
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}
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return cdbList;
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}
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/**
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*
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* ( 得到预收租金抵扣现金流明细)
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*
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* @param rent_list
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* @param rentbefore_money
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* @return
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* @throws LeasingException
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*/
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public static List<CashDetailsBean> getRentDetailsByDeductBeforeRent(List<CashDetailsBean> cdbList, String rentbefore_money) throws LeasingException {
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double d_total = 0;
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double dcaut = Double.parseDouble(rentbefore_money);
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String int_s = "";// 用于记录下标的
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if (Double.parseDouble(rentbefore_money) > 0) {
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// 得到可以抵扣的列表的下标值
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int_s = getIdsByDeduct(cdbList, rentbefore_money, d_total, int_s);
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if (int_s == null || int_s.equals("") || int_s.length() < 1) {
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throw new LeasingException("预收租金抵扣超出正常范围!");
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}
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String[] i_array = int_s.split(",");// 保存可以抵扣的租金下标
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for (int j = 0; j < i_array.length; j++) {
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CashDetailsBean cdb = cdbList.get(Integer.parseInt(i_array[j]));
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double temp_rent = Double.parseDouble(cdb.getFundIn());// 用于保存的租金
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if (Double.parseDouble(cdb.getFundIn()) < dcaut) {
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// 现金流明细处理
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cdb.setFundOut(cdb.getFundIn());
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cdb.setFundOutDetails(cdb.getFundOutDetails() + "预收租金抵扣：" + NumTools.formatNumberDouble(Double.parseDouble(NumTools.formatNumberDoubleScale(cdb.getFundIn(), 2))) + "；");
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cdb.setNetFlow("0");
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// 重新设置该元素的值
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cdbList.set(Integer.parseInt(i_array[j]), cdb);
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} else {
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// 现金流明细处理
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if (dcaut > 0) {
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cdb.setFundOut(String.valueOf(dcaut));
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cdb.setFundOutDetails(cdb.getFundOutDetails() + "预收租金抵扣：" + NumTools.formatNumberDouble(Double.parseDouble(NumTools.formatNumberDoubleScale(String.valueOf(dcaut), 2))) + "；");
|
||
cdb.setNetFlow(String.valueOf(Double.parseDouble(cdb.getFundIn()) - dcaut));
|
||
// 重新设置该元素的值
|
||
cdbList.set(Integer.parseInt(i_array[j]), cdb);
|
||
}
|
||
}
|
||
dcaut = dcaut - temp_rent;// 修改预收租金抵扣的值
|
||
}
|
||
}
|
||
return cdbList;
|
||
}
|
||
|
||
/**
|
||
*
|
||
* 预收租金抵扣金额小于预收租金金额 最后要做一笔流出 为预收租金金额减去预收租金抵扣金额)
|
||
*
|
||
* @param cdbList
|
||
* 现金流
|
||
* @param Column_8
|
||
* 预收租金
|
||
* @param Column_10
|
||
* 预收租金抵扣金额
|
||
* @return 返回处理完成的现金流
|
||
*/
|
||
public static List<CashDetailsBean> getRentDetailsByDeductBeforeRentOut(List<CashDetailsBean> cdbList, String Column_8, String Column_10) {
|
||
double Before_rent = Double.parseDouble(NumTools.getZeroStr(Column_8));
|
||
double Before_rent_deduction = Double.parseDouble(NumTools.getZeroStr(Column_10));
|
||
double loss_money = Before_rent - Before_rent_deduction;
|
||
if (loss_money > 0) {// 预收租金金额大于预收租金抵扣金额进入
|
||
// 得到最后一期现金流明细对象
|
||
CashDetailsBean cdb = cdbList.get(cdbList.size() - 1);
|
||
// 更新流入，净流量值
|
||
// 现金流明细处理
|
||
cdb.setFundOut(String.valueOf((Double.parseDouble(cdb.getFundOut()) + loss_money)));
|
||
cdb.setFundOutDetails(cdb.getFundOutDetails() + "预收租金退还：" + NumTools.formatNumberDouble(Double.parseDouble(NumTools.formatNumberDoubleScale(String.valueOf(loss_money), 2))) + "；");
|
||
cdb.setNetFlow(String.valueOf(Double.parseDouble(cdb.getFundIn()) - Double.parseDouble(cdb.getFundOut())));
|
||
// 重新设置此元素的值
|
||
cdbList.set(cdbList.size() - 1, cdb);
|
||
}
|
||
return cdbList;
|
||
}
|
||
|
||
/**
|
||
*
|
||
* ( 得到可以保证金抵扣的租金下标值)
|
||
*
|
||
* @param cdbList
|
||
* @param caut_money
|
||
* @param d_total
|
||
* @param int_s
|
||
* @return
|
||
*/
|
||
public static String getIdsByDeduct(List<CashDetailsBean> cdbList, String caut_money, double d_total, String int_s) {
|
||
for (int i = cdbList.size() - 1; i >= 0; i--) {
|
||
CashDetailsBean cdb = cdbList.get(i);
|
||
d_total = d_total + Double.parseDouble(cdb.getNetFlow().toString());
|
||
if (d_total > 0) {
|
||
int_s += i + ",";
|
||
}
|
||
if (d_total > Double.parseDouble(caut_money)) {
|
||
break;
|
||
}
|
||
}
|
||
int_s = int_s.indexOf(",") > -1 ? int_s.substring(0, int_s.length() - 1) : int_s;// 得到可以抵扣的租金的下标
|
||
return int_s;
|
||
}
|
||
|
||
|
||
/**
|
||
*
|
||
* ( 对最后一项现金流明细进行整理,如有变更的可以重写此方法)
|
||
* 其他情况
|
||
* @param cdbList
|
||
* @param equip_end_value 期末余值
|
||
* @param nominal_price 期末购买权
|
||
* @param income_number_year 付租类型
|
||
* @return
|
||
*/
|
||
public static List<CashDetailsBean> getCashDetailsByEndValue(List<CashDetailsBean> cdbList, String equip_end_value, String nominal_price,ConditionBean cb) {
|
||
// 得到最后一期现金流明细对象
|
||
CashDetailsBean cdb = cdbList.get(cdbList.size() - 1);
|
||
String planDate = cdb.getPlanDate(); // 日期 (只有年月)
|
||
String income_number_year = cb.getIncomeNumberYear();
|
||
int onhire_id = cdb.getOnhire_id();
|
||
|
||
//起租类型 注意: 期初 数字 1 字符串 period_type_1 #分割线# 期末 数字0 字符串 period_type_0
|
||
String periodType = cb.getPeriodType();
|
||
|
||
// 更新流入，净流量值 期末余值
|
||
if ( null != equip_end_value && !"".equals(equip_end_value) && Double.parseDouble(equip_end_value) > Double.parseDouble("0.00") ) {// 期末残值大于0时
|
||
//‘期末余值’期末情况下的统一处理方式:直接加在最后一期现金流数据中
|
||
if("period_type_0".equals(periodType) || "0".equals(periodType) ){// 期末
|
||
cdb.setFundIn(String.valueOf(Double.parseDouble(cdb.getFundIn()) + Double.parseDouble(equip_end_value)));
|
||
cdb.setFundInDetails(cdb.getFundInDetails() + "；期末余值：" + NumTools.formatNumberDouble(Double.parseDouble(NumTools.formatNumberDoubleScale(equip_end_value, 2))));
|
||
cdb.setNetFlow(String.valueOf(Double.parseDouble(cdb.getNetFlow()) + Double.parseDouble(equip_end_value)));
|
||
}
|
||
}
|
||
|
||
//期末购买权在月付双月付情况下在下方单独处理
|
||
if (null != nominal_price && !"".equals(nominal_price) && Double.parseDouble(nominal_price) > Double.parseDouble("0.00") && !"income_1".equals(income_number_year) && !"income_2".equals(income_number_year) && !"6".equals(income_number_year) && !"12".equals(income_number_year) || ( "period_type_0".equals(periodType) || "0".equals(periodType) ) ) {// 期末购买权【原名称:名义货价】大于0时
|
||
cdb.setFundIn(String.valueOf(Double.parseDouble(cdb.getFundIn()) + Double.parseDouble(nominal_price)));
|
||
cdb.setFundInDetails(cdb.getFundInDetails() + "；期末购买权：" + NumTools.formatNumberDouble(Double.parseDouble(NumTools.formatNumberDoubleScale(nominal_price, 2))) + "；");
|
||
cdb.setNetFlow(String.valueOf(Double.parseDouble(cdb.getNetFlow()) + Double.parseDouble(nominal_price)));
|
||
}
|
||
|
||
// 重新设置此元素的值
|
||
cdbList.set(cdbList.size() - 1, cdb);
|
||
|
||
// 处理特殊的保证金抵扣 保证金抵扣金额小于保证金金额 最后要做一笔流出 为保证金金额减去保证金抵扣金额
|
||
cdbList = IrrTools.getRentDetailsByDeductOut(cdbList, cb.getCautionMoney(), cb.getCautionDeductionMoney());
|
||
|
||
List<CashDetailsBean> new_cdbList = new ArrayList<CashDetailsBean>();
|
||
for (CashDetailsBean obj : cdbList) {
|
||
new_cdbList.add(obj);
|
||
}
|
||
|
||
|
||
//TODO:sea 期末购买权在月付情况下：最后一期日期加一月作为单独的一行数据,其它情况下：最后一期的日期
|
||
//2014-06-11 期末余值新的处理逻辑:【符合】‘期末购买权月付/双月付情况’这个前提下， 期初情况的‘期末余值’与‘期末购买权’一致放在新增的一期一起作为最后一期现金流的数据
|
||
if(null != nominal_price && !"".equals(nominal_price) && Double.parseDouble(nominal_price) > Double.parseDouble("0.00") && !Tools.isNullOrEmpty(planDate) && ( "income_1".equals(income_number_year) || "12".equals(income_number_year) || "income_2".equals(income_number_year) || "6".equals(income_number_year) ) && ("period_type_1".equals(periodType) || "1".equals(periodType)) ){//月付/双月付情况下
|
||
//重新取一次值
|
||
CashDetailsBean new_cdb = new CashDetailsBean();//cdbList.get(cdbList.size() - 1);
|
||
planDate = planDate+"-01";//构建成完整的日期格式
|
||
//2014-01-01 日期加1个月
|
||
planDate = DateTools.getDateAdd(planDate, 1, "mm");
|
||
new_cdb.setPlanDate(planDate.substring(0, 7)+"-01");
|
||
new_cdb.setFundOut("0");
|
||
new_cdb.setFundOutDetails("");
|
||
|
||
new_cdb.setFundIn(String.valueOf(Double.parseDouble(nominal_price) + Double.parseDouble(equip_end_value)));
|
||
new_cdb.setFundInDetails("期末购买权：" + NumTools.formatNumberDouble(Double.parseDouble(NumTools.formatNumberDoubleScale(nominal_price, 2))) + "；期末余值：" + NumTools.formatNumberDouble(Double.parseDouble(NumTools.formatNumberDoubleScale(equip_end_value, 2))));
|
||
new_cdb.setNetFlow( String.valueOf( Double.parseDouble(nominal_price) + Double.parseDouble(equip_end_value) ) );
|
||
|
||
new_cdb.setOnhire_id( onhire_id + 1 );//现金流按固定格式补0情况下，所以这里月付情况下，直接最后一次变量加1做为最终的期末购买权排序依据
|
||
new_cdbList.add(new_cdb);
|
||
}else{
|
||
|
||
//TODO:2014-06-11 期末余值新的处理逻辑:【不符合】‘期末购买权月付情况’这个前提下， 期初情况的‘期末余值’与‘期末购买权’一致放在新增的一期一起作为最后一期现金流的数据
|
||
//TODO:这里存在少处理不是月付情况，例如：季付情况下，‘期末余值’是不是不能直接最后一期加一个月，是加一个租赁间隔，是加一个季度三个月，中间需要补两个0
|
||
if( !Tools.isNullOrEmpty(planDate) && null != equip_end_value && !"".equals(equip_end_value) && Double.parseDouble(equip_end_value) > Double.parseDouble("0.00") && ("period_type_1".equals(periodType) || "1".equals(periodType)) ){// 期初
|
||
//重新取一次值
|
||
CashDetailsBean new_cdb = new CashDetailsBean();//cdbList.get(cdbList.size() - 1);
|
||
planDate = planDate+"-01";//构建成完整的日期格式
|
||
//2014-01-01 日期加1个月
|
||
planDate = DateTools.getDateAdd(planDate, 1, "mm");
|
||
new_cdb.setPlanDate(planDate.substring(0, 7)+"-01");
|
||
new_cdb.setFundOut("0");
|
||
new_cdb.setFundOutDetails("");
|
||
new_cdb.setFundIn(String.valueOf( Double.parseDouble(equip_end_value)));
|
||
new_cdb.setFundInDetails("期末余值：" + NumTools.formatNumberDouble(Double.parseDouble(NumTools.formatNumberDoubleScale(equip_end_value, 2))));
|
||
new_cdb.setNetFlow( String.valueOf( Double.parseDouble(equip_end_value) ) );
|
||
new_cdb.setOnhire_id( onhire_id + 1 );//现金流按固定格式补0情况下，所以这里月付情况下，直接最后一次变量加1做为最终的期末购买权排序依据
|
||
new_cdbList.add(new_cdb);
|
||
}
|
||
|
||
}
|
||
|
||
return new_cdbList;
|
||
|
||
}
|
||
|
||
/**
|
||
* <p>对最后一项现金流明细进行整理,针对项目类型为‘VP业务’情况下，期末购买权不计算入最后一期现金流中。</p>
|
||
* @author sea
|
||
* @param cdbList 现金流合集
|
||
* @param equip_end_value 期末残值
|
||
* @param nominal_price 期末购买权
|
||
* @return
|
||
*/
|
||
public static List<CashDetailsBean> getCashDetailsByEndValueCompanyProjType(List<CashDetailsBean> cdbList, String equip_end_value, String nominal_price,ConditionBean cb) {
|
||
// 得到最后一期现金流明细对象
|
||
CashDetailsBean cdb = cdbList.get(cdbList.size() - 1);
|
||
// 更新流入，净流量值
|
||
if (null != equip_end_value && !"".equals(equip_end_value) && Double.parseDouble(equip_end_value) > 0) {// 期末残值大于0时
|
||
cdb.setFundIn(String.valueOf(Double.parseDouble(cdb.getFundIn()) + Double.parseDouble(equip_end_value)));
|
||
|
||
cdb.setFundInDetails(cdb.getFundInDetails() + "；期末余值：" + NumTools.formatNumberDouble(Double.parseDouble(NumTools.formatNumberDoubleScale(equip_end_value, 2))));
|
||
|
||
cdb.setNetFlow(String.valueOf(Double.parseDouble(cdb.getNetFlow()) + Double.parseDouble(equip_end_value)));
|
||
}
|
||
|
||
if (null != nominal_price && !"".equals(nominal_price) && Double.parseDouble(nominal_price) > 0) {// 期末购买权【原名称:名义货价】大于0时
|
||
cdb.setFundIn(String.valueOf(Double.parseDouble(cdb.getFundIn()) + Double.parseDouble(nominal_price)));
|
||
//项目类型为‘VP业务’情况下，期末购买权不算入流入中
|
||
cdb.setFundInDetails( cdb.getFundInDetails() );
|
||
cdb.setNetFlow( cdb.getNetFlow() );
|
||
}
|
||
|
||
// 重新设置此元素的值
|
||
cdbList.set(cdbList.size() - 1, cdb);
|
||
|
||
// 2011-10-26
|
||
// 处理特殊的保证金抵扣 保证金抵扣金额小于保证金金额 最后要做一笔流出 为保证金金额减去保证金抵扣金额
|
||
cdbList = IrrTools.getRentDetailsByDeductOut(cdbList, cb.getCautionMoney(), cb.getCautionDeductionMoney());
|
||
|
||
return cdbList;
|
||
|
||
}
|
||
/**
|
||
*
|
||
* ( 现金流明细构建)
|
||
* 按月计算IRR
|
||
* @param cdbList
|
||
* @return
|
||
*/
|
||
public static String getIrr(List<CashDetailsBean> cdbList) {
|
||
// 得到租金列表
|
||
List<String> rent_list = getRentListByCashDetails(cdbList);
|
||
/*
|
||
* 后三个参数为固定按月计算
|
||
* @param chjg 固定值1
|
||
* @param zjjg 固定值1
|
||
* @param nhkcs 固定值12
|
||
*/
|
||
// 调用计算irr的公式
|
||
return IrrTools.getIRR(rent_list, "1","1","12");
|
||
|
||
}
|
||
/**
|
||
*
|
||
* @Title: getIrr
|
||
* @author zhangc
|
||
* @Description: 牛顿分切法计算XIRR
|
||
* @param cashlist
|
||
* @param flag 用来标记是合同层还是项目层 1、项目层 2、合同层
|
||
* @return
|
||
* @return String
|
||
* @throws
|
||
*/
|
||
public static String getIrr(List cashlist,String process) throws Exception {
|
||
// 得到租金列表
|
||
List<String> rent_list = getRentListByCashDetails(cashlist,process);
|
||
List<String>planDate_list = getRentListByCashDetailsPlanDate(cashlist, process);
|
||
// 调用计算irr的公式
|
||
return IrrTools.getXIRR(rent_list, planDate_list).toString();
|
||
//return IrrTools.getIRR(rent_list, "1","1","12");
|
||
}
|
||
|
||
public static String getIrrNew( List<String> netList,List<String> dateList,String process) throws Exception {
|
||
// 得到租金列表
|
||
//List<String> rent_list = getRentListByCashDetails(cashlist,process);
|
||
//List<String>planDate_list = getRentListByCashDetailsPlanDate(cashlist, process);
|
||
// 调用计算irr的公式
|
||
return IrrTools.getXIRR(netList, dateList).toString();
|
||
//return IrrTools.getIRR(rent_list, "1","1","12");
|
||
}
|
||
/**
|
||
*
|
||
* ( 现金流明细构建)
|
||
*
|
||
* @param cdbList
|
||
* @param cb
|
||
* @return
|
||
*/
|
||
public static String getIrr(List<CashDetailsBean> cdbList, ConditionBean cb) {
|
||
|
||
// 得到租金列表
|
||
List<String> rent_list = getRentListByCashDetails(cdbList);
|
||
// 调用计算irr的公式
|
||
return IrrTools.getIRR(rent_list, String.valueOf(12 / Integer.parseInt(cb.getIncomeNumberYear())), String.valueOf(12 / Integer.parseInt(cb.getIncomeNumberYear())), cb.getIncomeNumberYear());
|
||
|
||
}
|
||
|
||
/**
|
||
*
|
||
* ( 现金流明细构建)
|
||
*
|
||
* @param cdbList
|
||
* @param cb
|
||
* @return
|
||
*/
|
||
public static String getIrrByPreMonth(List<CashDetailsBean> cdbList, ConditionBean cb) {
|
||
|
||
// 得到租金列表
|
||
List<String> rent_list = getRentListByCashDetails(cdbList);
|
||
// 调用计算irr的公式
|
||
return IrrTools.getIRR(rent_list, String.valueOf(12 / Integer.parseInt(cb.getIncomeNumberYear())), String.valueOf(12 / Integer.parseInt(cb.getIncomeNumberYear())), cb.getIncomeNumberYear());
|
||
|
||
}
|
||
|
||
/**
|
||
*
|
||
* ( 根据现金流明细得到新的租金列表，用于算irr值)
|
||
*
|
||
* @param cdbList
|
||
*/
|
||
private static List<String> getRentListByCashDetails(List<CashDetailsBean> cdbList) {
|
||
List<String> rent_list = new ArrayList<String>();
|
||
for (CashDetailsBean cdb : cdbList) {
|
||
rent_list.add(cdb.getNetFlow());
|
||
}
|
||
return rent_list;
|
||
}
|
||
|
||
private static List<String> getRentListByCashDetails(List cdbList,String process) throws Exception {
|
||
List<String> rent_list = new ArrayList<String>();
|
||
for (Object cdb : cdbList) {
|
||
/*if(process.equals("proj_process")){
|
||
rent_list.add(((ProjCashDetailTemp)cdb).getNetFlow().toString());
|
||
}else if(process.equals("quoted_price")){
|
||
rent_list.add(((CustCashDetail)cdb).getNetFlow().toString());
|
||
}else{
|
||
rent_list.add(((ContractCashDetailTemp)cdb).getNetFlow().toString());
|
||
}*/
|
||
|
||
rent_list.add(((BizObject)cdb).getAttribute("NET_FLOW").getString());
|
||
}
|
||
return rent_list;
|
||
}
|
||
|
||
private static List<String> getRentListByCashDetailsPlanDate(List cdbList,String process) throws Exception {
|
||
List<String> rent_list = new ArrayList<String>();
|
||
for (Object cdb : cdbList) {
|
||
rent_list.add(((BizObject)cdb).getAttribute("PLAN_DATE").getString());
|
||
}
|
||
return rent_list;
|
||
}
|
||
|
||
/**
|
||
*
|
||
* ( 算出均息法下的均息法租金列表的irr,并把其当做年利率传递做第二次正常租金测算)
|
||
*
|
||
* @param cb
|
||
* 交易结构bean
|
||
* @param frpb
|
||
* 租金集合bean
|
||
* @return
|
||
*/
|
||
public static String getIRRByEvenInterest(ConditionBean cb, FundRentPlanBean frpb) {
|
||
String irr = "";
|
||
List<String> l_inflow_pour = new ArrayList<String>();// 现金流
|
||
List<String> rent_list = frpb.getRentList();
|
||
// 2011-11-14 均息法有宽限期的时候 宽限期累的租金不能加入现金流计算
|
||
int grace = cb.getGrace();
|
||
grace = grace > 0 ? grace : 0;
|
||
// 构建第一笔负金额
|
||
//"reckon".equals(cb.getReckonType()) ? cb.getCleanLeaseMoney() :
|
||
String leasing_money = cb.getCleanLeaseMoney();
|
||
//起租类型 注意: 期初 数字 1 字符串 period_type_1 #分割线# 期末 数字0 字符串 period_type_0
|
||
if (cb.getPeriodType().equals("1")) {// 期初就加上第一笔金额
|
||
// 2012-09-22 这里构建第一笔现金流的时候要用财务本金构建.因为在租金计划变更的时候计算现金流时的IRR中其实为财务本金
|
||
l_inflow_pour.add(new BigDecimal("-" + leasing_money).add(new BigDecimal(rent_list.get(grace).toString()).setScale(RentTools.getAccuracy(), BigDecimal.ROUND_HALF_UP)).toString());
|
||
//rent_list.remove(0);
|
||
grace ++;
|
||
} else {
|
||
l_inflow_pour.add("-" + leasing_money);
|
||
}
|
||
|
||
for (int i = grace; i < rent_list.size(); i++) {
|
||
l_inflow_pour.add(rent_list.get(i).toString());
|
||
}
|
||
if(cb.getEquipEndValue() != null && new BigDecimal(cb.getEquipEndValue()).compareTo(BigDecimal.ZERO)>0){
|
||
if (cb.getPeriodType().equals("1")) {// 期初
|
||
l_inflow_pour.add(cb.getEquipEndValue());
|
||
} else {
|
||
l_inflow_pour.set(l_inflow_pour.size()-1, new BigDecimal(l_inflow_pour.get(l_inflow_pour.size()-1)).add(new BigDecimal(cb.getEquipEndValue())).toString());
|
||
}
|
||
}
|
||
|
||
irr = IrrTools.getIRR(l_inflow_pour, String.valueOf(12 / Integer.parseInt(cb.getIncomeNumberYear())), String.valueOf(12 / Integer.parseInt(cb.getIncomeNumberYear())), cb.getIncomeNumberYear());
|
||
irr = Double.parseDouble(irr) + "";
|
||
return irr;
|
||
}
|
||
|
||
/**
|
||
*
|
||
* (根据现金流获得对应的年利率)
|
||
*
|
||
* @param alCash
|
||
* 现金流 用HashMap key为net_flow 存的每期的值
|
||
* @param income_number_year
|
||
* 年还款次数
|
||
* @return 返回年利率 保留六位小数 例如 8.123456% 则返回 8.123456
|
||
*/
|
||
public static String getRateByFlow(List<Map<String, String>> alCash, String income_number_year) {
|
||
// 根据现金流获取年利率
|
||
List<String> alirr = new ArrayList<String>();
|
||
for (int i = 0; i < alCash.size(); i++) {
|
||
Map<String, String> hm = alCash.get(i);
|
||
alirr.add(new BigDecimal((String) hm.get("net_flow")).toString());
|
||
}
|
||
return NumTools.formatNumberDoubleScale(Double.parseDouble(getIRR(alirr, "1", "1", income_number_year)) * 100 + "", 6);
|
||
}
|
||
|
||
/**
|
||
* <p>根据原始现金流集合按固定模式补0构建成独特格式的现金流。</p>
|
||
* @author sea
|
||
* @param ccfbList 未做任何处理的原始现金流集合
|
||
* @return
|
||
*/
|
||
public static List<CashDetailsBean> getNetCashByFixedZero(List<CashDetailsBean> ccfbList,ConditionBean cb,int size){
|
||
//计算补0个数
|
||
int num = getCountZero(cb);
|
||
// 返回现金流明细对象
|
||
List<CashDetailsBean> list = new ArrayList<CashDetailsBean>();
|
||
List<CashDetailsBean> cashList = new ArrayList<CashDetailsBean>();
|
||
// 期初（期末）支付 注意: 期初 数字 1 字符串 period_type_1 #分割线# 期末 数字0 字符串 period_type_0
|
||
String periodType = cb.getPeriodType();
|
||
if (ccfbList != null && ccfbList.size() > 0 && ccfbList.size() > size) {//现金流的长度如果小于2条，该方法不适用，特别是期初情况下，理论上现金流只存在一行数据了
|
||
|
||
//第0期现金流集合
|
||
CashDetailsBean objFirst = new CashDetailsBean();
|
||
objFirst = ccfbList.get(0);//默认第0期的值等于原始现金流的第0期
|
||
|
||
double firstIn = 0.00;
|
||
double firstOut = 0.00;
|
||
String firstFundInDetails = "";
|
||
String firstFundOutDetails = "";
|
||
for (int i = 0; i < size; i++) {
|
||
CashDetailsBean oneObj = ccfbList.get(i);
|
||
//第i期流入流出
|
||
firstIn = firstIn + NumberUtils.parseDouble( NumberUtils.nullToZero( oneObj.getFundIn() ) );
|
||
firstOut = firstOut + NumberUtils.parseDouble( NumberUtils.nullToZero( oneObj.getFundOut() ) );
|
||
firstFundInDetails = firstFundInDetails +oneObj.getFundInDetails();
|
||
firstFundOutDetails = firstFundOutDetails+oneObj.getFundOutDetails();
|
||
}
|
||
|
||
//期初前收情况下:做合并处理
|
||
if("1".equals(periodType) || "period_type_1".equals(periodType)){
|
||
//封装新的第0期
|
||
CashDetailsBean firstRentObj = ccfbList.get(size);//取出第一期租金与第0期合并
|
||
double firstRent = NumberUtils.parseDouble( NumberUtils.nullToZero( firstRentObj.getFundIn() ) );
|
||
objFirst.setFundIn( NumberUtils.doubleToString( firstIn + firstRent) );
|
||
objFirst.setFundInDetails(firstFundInDetails+"1期"+firstRentObj.getFundInDetails());
|
||
objFirst.setFundOut( NumberUtils.doubleToString( firstOut ) );
|
||
objFirst.setFundOutDetails(firstFundOutDetails+firstRentObj.getFundOutDetails());
|
||
objFirst.setNetFlow(NumberUtils.doubleToString( firstIn + firstRent - firstOut ) );
|
||
objFirst.setOnhire_id(1000);
|
||
cashList.add(objFirst);
|
||
|
||
//封装后续所有现金流
|
||
int key = 2;
|
||
int onhire_id = 1000;
|
||
for (int i = size+1; i < ccfbList.size(); i++) {
|
||
onhire_id = onhire_id + 1;
|
||
int count = num;
|
||
//补0
|
||
while(count > 0){
|
||
cashList.add( getNewCashDetailsBean(ccfbList.get(i),onhire_id ) );
|
||
count = count -1;
|
||
onhire_id = onhire_id + 1;
|
||
}
|
||
CashDetailsBean otherObj = ccfbList.get(i);
|
||
otherObj.setFundInDetails(key+"期"+otherObj.getFundInDetails());
|
||
otherObj.setOnhire_id(onhire_id);
|
||
//补完0后则继续封装对应的现金流数据
|
||
cashList.add(otherObj);
|
||
key = key + 1;
|
||
}
|
||
}else{//期末后收情况下:
|
||
//封装新的第0期
|
||
objFirst.setFundIn( NumberUtils.doubleToString( firstIn ) );
|
||
objFirst.setFundInDetails(firstFundInDetails);
|
||
objFirst.setFundOut( NumberUtils.doubleToString( firstOut ) );
|
||
objFirst.setFundOutDetails(firstFundOutDetails);
|
||
objFirst.setNetFlow(NumberUtils.doubleToString( firstIn - firstOut ) );
|
||
objFirst.setOnhire_id(1000);
|
||
cashList.add(objFirst);
|
||
//封装后续所有现金流
|
||
int onhire_id = 1000;
|
||
int rent_list = 1;
|
||
for (int i = size; i < ccfbList.size(); i++) {
|
||
onhire_id = onhire_id + 1;
|
||
int count = num;
|
||
//补0
|
||
while(count > 0){
|
||
cashList.add( getNewCashDetailsBean(ccfbList.get(i),onhire_id) );
|
||
count = count -1;
|
||
onhire_id = onhire_id + 1;
|
||
}
|
||
CashDetailsBean otherObj = ccfbList.get(i);
|
||
otherObj.setFundInDetails(rent_list+"期"+otherObj.getFundInDetails());
|
||
otherObj.setOnhire_id(onhire_id);
|
||
//补完0后则继续封装对应的现金流数据
|
||
cashList.add(otherObj);
|
||
rent_list = rent_list + 1;
|
||
}
|
||
}
|
||
}
|
||
return cashList;
|
||
}
|
||
|
||
/**
|
||
* <p>计算固定格式情况现金流补0个数。</p>
|
||
* @author sea
|
||
* @param cb 交易结构
|
||
* @return
|
||
*/
|
||
private static int getCountZero(ConditionBean cb){
|
||
//计算补0个数
|
||
int num = 0;
|
||
// 付租类型
|
||
if (null != cb.getIncomeNumberYear() && ("income_1".equals(cb.getIncomeNumberYear()) || "12".equals(cb.getIncomeNumberYear())) ) {//月付
|
||
num = 12/12-1;//0
|
||
} else if (null != cb.getIncomeNumberYear() && ("income_3".equals(cb.getIncomeNumberYear()) || "4".equals(cb.getIncomeNumberYear())) ) {//季付
|
||
num = 12/4-1;//2
|
||
} else if (null != cb.getIncomeNumberYear() && ("income_6".equals(cb.getIncomeNumberYear()) || "2".equals(cb.getIncomeNumberYear())) ) {//半年付
|
||
num = 12/2-1;//5
|
||
} else if (null != cb.getIncomeNumberYear() && ("income_12".equals(cb.getIncomeNumberYear()) || "1".equals(cb.getIncomeNumberYear())) ) {//年付
|
||
num = 12/1-1;//11
|
||
} else if (null != cb.getIncomeNumberYear() && ("income_2".equals(cb.getIncomeNumberYear()) || "6".equals(cb.getIncomeNumberYear())) ) {//双月付
|
||
num = 12/6-1;//1
|
||
}else{
|
||
num = 0;
|
||
}
|
||
return num;
|
||
}
|
||
|
||
/**
|
||
* <p>生成补0的现金流对象。</p>
|
||
* @author sea
|
||
* @param obj 具体冒一期现金流对象
|
||
* @return
|
||
*/
|
||
private static CashDetailsBean getNewCashDetailsBean(CashDetailsBean obj,int onhire_id){
|
||
CashDetailsBean newObj = new CashDetailsBean();
|
||
newObj.setDocId(obj.getDocId());
|
||
newObj.setContractId(obj.getContractId());
|
||
newObj.setQuotId(obj.getQuotId());
|
||
newObj.setPlanDate("-");
|
||
newObj.setFundIn("0");
|
||
newObj.setFundInDetails("补0");
|
||
newObj.setFundOut("0");
|
||
newObj.setFundOutDetails("补0");
|
||
newObj.setNetFlow("0");
|
||
newObj.setOnhire_id(onhire_id);
|
||
return newObj;
|
||
}
|
||
|
||
|
||
/**
|
||
* 牛顿迭代法求IRR
|
||
* @param cashList:现金流List
|
||
* @return IRR
|
||
*/
|
||
public static BigDecimal getIRR(List<BigDecimal> cashList){
|
||
//long startTime = System.currentTimeMillis();
|
||
BigDecimal diff = BigDecimal.ONE; //租金现值总和与总本金的差值
|
||
BigDecimal irr = BigDecimal.ZERO;
|
||
BigDecimal one = BigDecimal.ONE;
|
||
BigDecimal derivative; //irr函数对应的导数值
|
||
BigDecimal daoRate; // 1/(1+irr)
|
||
BigDecimal netflowNow; //净流量现值
|
||
BigDecimal error = new BigDecimal("0.0000000001"); //误差
|
||
int size = cashList.size(); //现金流大小
|
||
int j = 0; //迭代次数
|
||
try{
|
||
while(diff.abs().compareTo(error) == 1 && j < 100){
|
||
daoRate = one.divide(one.add(irr), 20, BigDecimal.ROUND_HALF_UP); // 1/(1+irr)
|
||
diff = cashList.get(0);
|
||
derivative = BigDecimal.ZERO;
|
||
for ( int i = 1;i < size;i++ ) {
|
||
netflowNow = cashList.get(i).multiply(daoRate.pow(i)); //净流量现值
|
||
diff = diff.add(netflowNow);//求irr对应函数f(irr)的值
|
||
derivative = derivative.subtract(netflowNow.multiply(daoRate).multiply(new BigDecimal(i)));//求irr对应函数的导数f'(irr)的值
|
||
}
|
||
j++;
|
||
irr = irr.subtract(diff.divide(derivative, 20, BigDecimal.ROUND_HALF_UP)); //迭代关系式
|
||
}
|
||
}catch(Exception e){
|
||
irr = new BigDecimal("-1");
|
||
}
|
||
//logger.info("IRR="+ irr +"；IRR试算次数="+j + "；耗时=" + (System.currentTimeMillis()-startTime));
|
||
return irr;
|
||
}
|
||
|
||
|
||
|
||
/**
|
||
* 牛顿迭代法求XIRR
|
||
* @param cashList:现金流List
|
||
* @param dateList:与现金流支付相对应的支付日期表
|
||
* @return IRR
|
||
*/
|
||
public static BigDecimal getXIRR(List<String> cashList, List<String> dateList){
|
||
long startTime = System.currentTimeMillis();
|
||
BigDecimal diff = BigDecimal.ONE; //租金现值总和与总本金的差值
|
||
BigDecimal irr = BigDecimal.ZERO;
|
||
BigDecimal one = BigDecimal.ONE;
|
||
BigDecimal derivative; //irr函数对应的导数值
|
||
BigDecimal daoRate=BigDecimal.ZERO; // 1/(1+irr)
|
||
BigDecimal netflowNow; //净流量现值
|
||
BigDecimal error = new BigDecimal("0.0000000001"); //误差
|
||
int size = cashList.size(); //现金流大小
|
||
int j = 0; //迭代次数
|
||
double k = 0;
|
||
String startDate = "";
|
||
try{
|
||
while(diff.abs().compareTo(error) == 1 && j < 100){
|
||
daoRate = one.divide(one.add(irr), 20, BigDecimal.ROUND_HALF_UP); // 1/(1+irr)
|
||
diff = new BigDecimal(cashList.get(0)) ;
|
||
derivative = BigDecimal.ZERO;
|
||
startDate = dateList.get(0);
|
||
for ( int i = 1;i < size;i++ ) {
|
||
try{
|
||
k = (double)DateTools.getDateDiff(dateList.get(i),startDate );
|
||
k = k / 365;
|
||
netflowNow = new BigDecimal(cashList.get(i)).multiply(new BigDecimal(Math.pow(daoRate.doubleValue(), k)) ); //净流量现值
|
||
diff = diff.add(netflowNow);//求irr对应函数f(irr)的值
|
||
derivative = derivative.subtract(netflowNow.multiply(daoRate).multiply(new BigDecimal(k)));//求irr对应函数的导数f'(irr)的值
|
||
}catch(Exception e){
|
||
e.printStackTrace();
|
||
}
|
||
|
||
}
|
||
j++;
|
||
irr = irr.subtract(diff.divide(derivative, 20, BigDecimal.ROUND_HALF_UP)); //迭代关系式
|
||
}
|
||
}catch(Exception e){
|
||
irr = new BigDecimal("-1");
|
||
}
|
||
return irr.multiply(new BigDecimal(100)).setScale(Scale.RATE_SCALE, BigDecimal.ROUND_HALF_UP);
|
||
}
|
||
}
|