当前主要包装spel，对于mvel 后期添加，对于rules配置文件格式支持json&&yaml
- 添加依赖
当前还没有发布公共仓库，暂时需要自己构建 支持easy-rules 4.1
<dependency>
<groupId>com.github.rongfengliang</groupId>
<artifactId>easy-rules-centraldogma-spring-boot-starter</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
- 参考demo
@RestController
public class RuleApi {
@Autowired
private Map<String, Rules> centralDogmaRules;
@Autowired
private RulesEngine rulesEngine;
@Autowired
private ObjectMapper objectMapper;
@RequestMapping(value = "/myrule", method = RequestMethod.POST)
public Object info(@RequestBody User user) throws Exception {
centralDogmaRules.forEach(new BiConsumer<String, Rules>() {
@Override
public void accept(String s, Rules rules) {
System.out.println(s);
rules.forEach(new Consumer<Rule>() {
@Override
public void accept(Rule rule) {
System.out.println(rule.getDescription());
}
});
}
});
Rules rules = centralDogmaRules.get("demoapp");
rules.register(new MyRule());
Facts facts = new Facts();
// 生成一个唯一id，方便基于数据id规则流程查询
facts.put("biz",user);
rulesEngine.fire(rules,facts);
Object userResult= facts.get("biz");
System.out.println("result from final ruls"+userResult.toString());
return userResult;
}
}
- 配置说明
添加规则配置
src/main/resources/application.yaml
easyrules:
skipOnFirstAppliedRule: false
skipOnFirstNonTriggeredRule: false
priorityThreshold: 1000000
project: demo
repo: demo
contentType: json // 当前只支持json格式的，后续扩展其他的
confName: /rules2.json
template: false // 是否使用spel 模版格式为 #{},默认为false，为true 需要使用#{} 格式
centraldogma:
hosts:
- "127.0.0.1:36462"
server:
port: 9000添加规则文件: /rules2.json 在centraldogma中
1.0-SNAPSHOT starter 参考配置
当前配置只支持基于spel的，后续会添加其他格式的
template:false 使用如下格式:
[
{
"rulesId": "demoapp",
"rulesContent": [
{
"name": "1",
"description": "1ssssss",
"priority": 1,
"compositeRuleType": "UnitRuleGroup",
"composingRules": [
{
"name": "2",
"description": "2",
"condition": "#biz.age >18",
"priority": 2,
"actions": [
"@myService.setInfo(#biz)"
]
}
]
}
]
},
{
"rulesId": "demoapp222",
"rulesContent": [
{
"name": "1",
"description": "1ssssss",
"priority": 1,
"compositeRuleType": "UnitRuleGroup",
"composingRules": [
{
"name": "2",
"description": "2",
"condition": "#biz.age >18",
"priority": 2,
"actions": [
"@myService.setInfo(#biz)"
]
}
]
}
]
},
{
"rulesId": "demoapp2223333",
"rulesContent": [
{
"name": "1",
"description": "1ssssss",
"priority": 1,
"compositeRuleType": "UnitRuleGroup",
"composingRules": [
{
"name": "2",
"description": "2",
"condition": "#biz.age >18",
"priority": 2,
"actions": [
"@myService.setInfo(#biz)"
]
}
]
}
]
}
]
template:true 使用如下格式：
[
{
"rulesId": "demoapp",
"rulesContent": [
{
"name": "demo",
"description": "mydemo",
"priority": 1,
"compositeRuleType": "UnitRuleGroup",
"composingRules": [
{
"name": "first",
"description": "first rule",
"condition": "#{#biz.age > 10}",
"priority": 2,
"actions": [
"#{@myService.setInfo(#biz)}",
"#{@myService.setInfo2(#biz)}"
]
}
]
}
]
}
]
- 基于pojo 代码的rule 添加到规则链中
是直接支持的，使用方法如下:
定义rule
@Rule(priority = 0,description = "demo")
public class MyRule {
@Condition
public boolean itRains(@Fact("biz") User user) {
System.out.println(user.toString());
return true;
}
@Action
public void takeAnUmbrella(@Fact("biz") User user) {
System.out.println("run from first");
System.out.println(user.toString());
}
}
添加rule到规则链
...
Rules rules = SpringBeanUtil.centralDogmaRules().get("demoapp");
...
rules.register(new MyRule());
...
// do rule fire and then fetch result
- rulelistener
可以添加自己的bean，方便记录信息，比如分析业务规则的执行，每个阶段的数据，计划支持prometheus的metrics 以及rule pipeline
参考实现:
@Component
public class MyRuleListener implements RuleListener {
Log log = LogFactory.getLog(DefaultRulesListener.class);
@Override
public boolean beforeEvaluate(Rule rule, Facts facts) {
return true;
}
@Override
public void afterEvaluate(Rule rule, Facts facts, boolean b) {
log.info("-----------------afterEvaluate-----------------");
log.info("my RulesListener: "+"rule name: "+rule.getName()+"rule desc: "+rule.getDescription()+facts.toString());
}
@Override
public void beforeExecute(Rule rule, Facts facts) {
log.info("-----------------beforeExecute-----------------");
log.info("my RulesListener: "+"rule name: "+rule.getName()+"rule desc: "+rule.getDescription()+facts.toString());
}
@Override
public void onSuccess(Rule rule, Facts facts) {
log.info("-----------------onSuccess-----------------");
log.info("my RulesListener: "+"rule name: "+rule.getName()+"rule desc: "+rule.getDescription()+facts.toString());
}
@Override
public void onFailure(Rule rule, Facts facts, Exception e) {
log.info("-----------------onFailure-----------------");
log.info("my RulesListener: "+"rule name: "+rule.getName()+"rule desc: "+rule.getDescription()+facts.toString());
}
}
- ruleEnginelistener
可以添加自己的bean，方便记录信息，方便分析rulegine的情况计划
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