<span style="font-family: Arial, Helvetica, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);">续drools6 基本使用1</span>
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");
}
@Override
public 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");
}
@Override
public 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, 2014
package com.elulian.CustomerSecurityManagementSystem.service.impl
//list any import classes here.
import com.elulian.CustomerSecurityManagementSystem.vo.CustomerInfo
import java.util.Date
//declare any global variables here
rule "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());
end
rule "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());
end
rule "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");
end
rule "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 fired
rule "Trim Risk Type Rule"
salience -9999
when
info : CustomerInfo (true)
then
info.setRiskType(info.getRiskType().trim());
end@Test
public 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);
}
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
原文地址：http://blog.csdn.net/cloud_ll/article/details/26982559
