drools6 基本使用 -- 2

续drools6 基本使用1

http://blog.csdn.net/cloud_ll/article/details/26979355

8. 创建src/main/test folder，把droolsTest.java移动到test folder，把droolsTest.java改装成junit test case，执行mvn test，确保rules运行没有问题

9. 执行mvn install 把rules打包成jar文件上传到本地库

Note: 如果rule文件里面有中文，记得要把文件保存成utf-8格式，然后测试的时候保证maven的surefire plugin加上了使用utf-8的运行参数，否则会乱码出错

10. 在另外一个项目中使用drools，主要是借助kie-ci框架，实现启动load rules，动态修改rules和执行规则

maven文件改动，加入如下依赖：

<dependency>
<groupId>org.kie</groupId>
<artifactId>kie-ci</artifactId>
</dependency

java代码：创建一个ruleservice接口和实现类，实现以下方法：启动load rules（initService)，动态修改(refreshService), 执行规则(fireService)

public void initService(String groupId, String artifactId, String version)  throws NotExistsException {ks = KieServices.Factory.get();try{kContainer = ks.newKieContainer(ks.newReleaseId(groupId, artifactId, version));} catch (Exception e){StringBuilder sb = new StringBuilder("fail to get maven rules kmodule from groupId: [");sb.append(groupId).append("] artifactId: [").append(artifactId).append("] version: [").append(version).append("]");throw new NotExistsException(sb.toString());}if(null != kContainer)kSession = kContainer.newStatelessKieSession("ksession-rules");}@Overridepublic void refreshService(String groupId, String artifactId, String version) throws NotExistsException {try{kContainer.updateToVersion(ks.newReleaseId(groupId, artifactId, version));} catch (Exception e){StringBuilder sb = new StringBuilder("fail to get maven rules kmodule from groupId: [");sb.append(groupId).append("] artifactId: [").append(artifactId).append("] version: [").append(version).append("]");throw new NotExistsException(sb.toString());}if(null != kContainer)kSession = kContainer.newStatelessKieSession("ksession-rules");}@Overridepublic void fireService(Message info) {kSession.execute(info);}

11. 基本测试，对于使用drools和直接写java代码，显然使用drools可以实现动态部署，更具优势，不过有人担心性能受到影响，这里我做了一下测试，

我这里的测试是基于一个自己写的rule规则，对对象的某些字段做业务逻辑处理，选择使用java代码和使用drools，看耗时差别，当然这个测试很简陋，也没有对drools使用做优化，也没有看CPU和内存使用情况

业务逻辑代码：

public void setMatchThresholdsInfo(CustomerInfo info) {String temp = info.getProfessionCode();// boolean flag = false;if (null == temp || 0 == (temp.trim()).length() || "其他".equals(temp) || "其它".equals(temp) || "无业".equals(temp) || "未知".equals(temp)) {info.setRiskValue(info.getRiskValue() + 20);    info.setRiskType(info.getRiskType() + " Invalid professionCode value: " + info.getProfessionCode());}if (info.getCertificateEndDate() == null|| info.getCertificateEndDate().before(new Date())) { info.setRiskValue(info.getRiskValue() + 80);     info.setRiskType(info.getRiskType() + " Invalid Certification End date value: " + info.getCertificateEndDate());}if (info.getCustomerName() == null || info.getCustomerName().trim().length() == 0) {info.setRiskValue(info.getRiskValue() + 80);info.setRiskType(info.getRiskType() + " Customer Name is null");}if (info.getCertificateId() == null || 0 == (info.getCertificateId().trim()).length()) {info.setRiskValue(info.getRiskValue() + 80); info.setRiskType(info.getRiskType() + " Invalid Certification ID: " + info.getCertificateId());}if (null == info.isForeignFlag() ||info.isForeignFlag()) {info.setRiskValue(info.getRiskValue() + 20);info.setRiskType(info.getRiskType() + " 境外标志: " + info.getForeignFlag());}info.setRiskType(info.getRiskType().trim());}

rule规则：

//created on: May 19, 2014package com.elulian.CustomerSecurityManagementSystem.service.impl//list any import classes here.import com.elulian.CustomerSecurityManagementSystem.vo.CustomerInfoimport java.util.Date//declare any global variables hererule "Profession Rule"       //include attributes such as "salience" here...            when       //conditions       info : CustomerInfo (null == professionCode || 0 == (info.getProfessionCode().trim()).length() || "其他".equals(professionCode) || "其它".equals(professionCode) || "无业".equals(professionCode) || "未知".equals(professionCode))    then       //actions       info.setRiskValue(info.getRiskValue() + 20);       info.setRiskType(info.getRiskType() + " Invalid professionCode value: " + info.getProfessionCode());endrule "Certification End date Rule"           when        //conditions        info : CustomerInfo (null == certificateEndDate || certificateEndDate.before(new Date()))    then        //actions       info.setRiskValue(info.getRiskValue() + 80);       info.setRiskType(info.getRiskType() + " Invalid Certification End date value: " + info.getCertificateEndDate());endrule "Customer Name Rule"            when        //conditions         info : CustomerInfo (null == customerName || 0 == (info.getCustomerName().trim()).length())    then        //actions         info.setRiskValue(info.getRiskValue() + 80);         info.setRiskType(info.getRiskType() + " Customer Name is null");endrule "Certification ID Rule"           when        //conditions        info : CustomerInfo (null == certificateId || 0 == (info.getCertificateId().trim()).length())    then        //actions        info.setRiskValue(info.getRiskValue() + 80);        info.setRiskType(info.getRiskType() + " Invalid Certification ID: " + info.getCertificateId());end/*rule "Certification ID Rule 2"       when        //use regx here to check digital and length later        info : CustomerInfo ("身份证" == certificateType && (15 != (info.getCertificateId().trim()) || 18 != (info.getCertificateId().trim())))    then        info.setRiskValue(info.getRiskValue() + 80);        info.setRiskType(info.getRiskType() + " Invalid Certification ID: " + info.getCertificateId());end*/        rule "Foregin Flag Rule"            when        info : CustomerInfo (null == foreignFlag || true == foreignFlag)    then        //actions        info.setRiskValue(info.getRiskValue() + 20);        info.setRiskType(info.getRiskType() + " 境外标志: " + info.getForeignFlag());end//execute after all other rules are firedrule "Trim Risk Type Rule"    salience -9999    when         info : CustomerInfo (true)    then         info.setRiskType(info.getRiskType().trim());end

测试代码：

@Testpublic void testExeuctionTime(){long recordsNumber = 100000;long start = System.currentTimeMillis();long used = 0;for(int i = 0; i < recordsNumber ; i++){CustomerInfo info = new CustomerInfo();info.setRiskType("");info.setRiskValue(0);thresholdService.setCustomerThresholdsInfo(info);}used = System.currentTimeMillis() - start;System.out.println(used);start = System.currentTimeMillis();used = 0;for(int i = 0; i < recordsNumber; i++){CustomerInfo info = new CustomerInfo();info.setRiskType("");info.setRiskValue(0);thresholdService.setMatchThresholdsInfo(info);}used = System.currentTimeMillis() - start;System.out.println(used);}

测试结果：

recordsNumber = 10

54
424

recordsNumber = 100

23
713
[Thread-3] WARN org.drools.core.rule.constraint.MvelConstraint - Exception jitting: null == certificateEndDate || certificateEndDate.before(
new Date()) This is NOT an error and NOT prevent the correct execution since the constraint will be evaluated in intrepreted mode
[Thread-4] WARN org.drools.core.rule.constraint.MvelConstraint - Exception jitting: null == customerName  ||  0 == (info.getCustomerName().t
rim()).length() This is NOT an error and NOT prevent the correct execution since the constraint will be evaluated in intrepreted mode
[Thread-2] WARN org.drools.core.rule.constraint.MvelConstraint - Exception jitting: null == professionCode || 0 == (info.getProfessionCode()
.trim()).length() || "鍏朵粬".equals(professionCode) || "鍏跺畠".equals(professionCode) || "鏃犱笟".equals(professionCode) || "鏈煡".equal
s(professionCode) This is NOT an error and NOT prevent the correct execution since the constraint will be evaluated in intrepreted mode
[Thread-5] WARN org.drools.core.rule.constraint.MvelConstraint - Exception jitting: null == certificateId  ||  0 == (info.getCertificateId()
.trim()).length() This is NOT an error and NOT prevent the correct execution since the constraint will be evaluated in intrepreted mode

recordsNumber = 10000

406

70937

更多rules warning。。。。。。。。有机会和时间要研究下如何调优

加几句，一不小心用了spring tx adv，慢的更离谱了

INFO - init threshold service before test
83813
[Thread-4] WARN org.drools.core.rule.constraint.MvelConstraint - Exception jitting: null == certificateEndDate || certificateEndDate.before(new Date()) This is NOT an error and NOT prevent the cor
[Thread-3] WARN org.drools.core.rule.constraint.MvelConstraint - Exception jitting: null == professionCode || 0 == (info.getProfessionCode().trim()).length() || "鍏朵粬".equals(professionCode) ||
[Thread-5] WARN org.drools.core.rule.constraint.MvelConstraint - Exception jitting: null == customerName  ||  0 == (info.getCustomerName().trim()).length() This is NOT an error and NOT prevent the
[Thread-6] WARN org.drools.core.rule.constraint.MvelConstraint - Exception jitting: null == certificateId  ||  0 == (info.getCertificateId().trim()).length() This is NOT an error and NOT prevent t
146309
Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 343.06 sec - in com.elulian.CustomerSecurityManagementSystem.service.ThresholdServiceTest
Running com.elulian.CustomerSecurityManagementSystem.service.UserInfoServiceTest