fix: 修复规则频繁修改可能会导致内存泄漏的风险.

Signed-off-by: feihu.wang <wfh45678@163.com>

README.md

@@ -17,8 +17,8 @@ The project code called Radar, like the code, monitor the transaction at the bac
  * 配置简单，开箱即用！
 
 ## 相关站点
-    Github: https://github.com/wfh45678/radar  
     Gitee:  https://gitee.com/freshday/radar  // 码云为镜像网站，贡献代码请提交到 github   
+    Github: https://github.com/wfh45678/radar  
     官网：  http://radar.pgmmer.top  
     Wiki:   https://gitee.com/freshday/radar/wikis/home
 
@@ -56,7 +56,7 @@ The project code called Radar, like the code, monitor the transaction at the bac
 
 * Mysql ： 本项目中关系数据库，主要用于存放 风险模型的元信息。
 
-* MongoDB： 用于存放事件JSON， 提供基本统计学计算（例如：max, min, sum, avg, ），
+* MongoDB： 用于存放事件JSON， 提供基本统计学计算（例如：max, min, sum, avg,），
 复杂的统计学概念（sd,variance, etc...）在内存中计算。
 
 * Redis： 提供缓存支持，Engine 利用发布订阅特性监听管理端相关配置的更新
@@ -104,7 +104,7 @@ https://gitee.com/freshday/radar/wikis/manual?sort_id=1637446
 建议大家自行注册用户，避免使用同样的测试账号受干扰.   
 
 ## 未完待续
-
+[Release Note:](https://gitee.com/freshday/radar/wikis/release%20note?sort_id=1723765) https://gitee.com/freshday/radar/wikis/release%20note?sort_id=1723765  
 ### 重大特性
 * 支持机器学习
 * 数据分析平台

radar-admin/src/main/java/com/pgmmers/radar/controller/RuleApiController.java

@@ -47,8 +47,6 @@ public class RuleApiController {
 
     @PutMapping
     public CommonResult save(@RequestBody RuleVO rule, HttpServletRequest request) {
-//    	HttpSession session = request.getSession();
-//        UserVO user = (UserVO) session.getAttribute("user");
         return ruleService.save(rule, contextHolder.getContext().getUsername());
     }
 

radar-commons/src/main/java/com/pgmmers/radar/util/GroovyScriptUtil.java

@@ -3,7 +3,6 @@ package com.pgmmers.radar.util;
 import groovy.lang.GroovyClassLoader;
 import groovy.lang.GroovyObject;
 import org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor;
-
 import java.util.HashMap;
 import java.util.Map;
 
@@ -58,4 +57,11 @@ public class GroovyScriptUtil {
             return null;
         }
     }
+
+    /**
+     * 删除不在使用的脚本关联的groovy object, 不然内存有溢出风险。
+     */
+    public static void removeInactiveScript(String  script){
+        passedClassMap.remove(script.hashCode() + "");
+    }
 }

radar-service-impl/src/main/java/com/pgmmers/radar/service/impl/model/AbstractionServiceImpl.java

@@ -9,6 +9,7 @@ import com.pgmmers.radar.service.cache.CacheService;
 import com.pgmmers.radar.service.cache.SubscribeHandle;
 import com.pgmmers.radar.service.common.CommonResult;
 import com.pgmmers.radar.service.model.AbstractionService;
+import com.pgmmers.radar.util.GroovyScriptUtil;
 import com.pgmmers.radar.vo.model.AbstractionVO;
 import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
@@ -79,10 +80,17 @@ public class AbstractionServiceImpl implements AbstractionService, SubscribeHand
     @Override
     public CommonResult save(AbstractionVO abstraction) {
         CommonResult result = new CommonResult();
+        if (abstraction.getId() != null) {
+            AbstractionVO oldAbs = abstractionDal.get(abstraction.getId());
+            // 如果规则有更新，以前的编译好的groovy 对象用不到了，应该删除。
+            if (!oldAbs.getRuleScript().equals(abstraction.getRuleScript())) {
+                GroovyScriptUtil.removeInactiveScript(oldAbs.getRuleScript());
+            }
+        }
         int count = abstractionDal.save(abstraction);
         if (count > 0) {
         	if(StringUtils.isEmpty(abstraction.getName())){
-        		abstraction.setName("abstraction_"+abstraction.getId());
+        		abstraction.setName("abstraction_" + abstraction.getId());
         		abstractionDal.save(abstraction);
         	}
         	

radar-service-impl/src/main/java/com/pgmmers/radar/service/impl/model/RuleServiceImpl.java

@@ -14,6 +14,7 @@ import com.pgmmers.radar.service.cache.SubscribeHandle;
 import com.pgmmers.radar.service.common.CommonResult;
 import com.pgmmers.radar.service.model.RuleService;
 import com.pgmmers.radar.service.search.SearchEngineService;
+import com.pgmmers.radar.util.GroovyScriptUtil;
 import com.pgmmers.radar.vo.model.*;
 import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
@@ -89,6 +90,13 @@ public class RuleServiceImpl implements RuleService, SubscribeHandle {
     @Override
     public CommonResult save(RuleVO rule,String merchantCode) {
         CommonResult result = new CommonResult();
+        if (rule.getId() != null) {
+            RuleVO oldRule = ruleDal.get(rule.getId());
+            // 如果规则有更新，以前的编译好的groovy 对象用不到了，应该删除。
+            if (!oldRule.getScripts().equals(rule.getScripts())) {
+                GroovyScriptUtil.removeInactiveScript(oldRule.getScripts());
+            }
+        }
         int count = ruleDal.save(rule);
         if (count > 0) {
         	if(StringUtils.isEmpty(rule.getName())){