package rules
import com.huan.drools.insertmethod.Fire
import com.huan.drools.insertmethod.Alarm
rule "insert_發(fā)生火災(zāi)時(shí)，往工作內(nèi)存中插入告警對(duì)象"
    when
        $fire: Fire()
    then
        System.out.println("1、發(fā)生火災(zāi)時(shí)，往工作內(nèi)存中插入告警對(duì)象");
        insert(new Alarm($fire));
end
rule "insert_當(dāng)規(guī)則內(nèi)存中存在告警對(duì)象，進(jìn)行告警，然后刪除火災(zāi)對(duì)象"
    when
        $fire: Fire()
        $alarm: Alarm( fire == $fire )
    then
        System.out.println("2、進(jìn)行告警，然后刪除對(duì)應(yīng)的火災(zāi)對(duì)象");
end
rule "insert_檢測(cè)告警對(duì)象是否還是存在-01"
    when
        Alarm()
    then
        System.out.println("3、insert 插入的告警對(duì)象還存在");
        // 刪除工作內(nèi)存中的Fire對(duì)象
        delete($fire);
end
rule "insert_檢測(cè)告警對(duì)象不存在"
    when
        not Alarm()
    then
        System.out.println("3、insert 插入的告警對(duì)象不存在");
end

// 將火災(zāi)對(duì)象插入到工作內(nèi)存中
kieSession.insert(new Fire());
// 只觸發(fā)規(guī)則名稱以 insert_ 開頭的規(guī)則
kieSession.fireAllRules(new RuleNameStartsWithAgendaFilter("insert_"));

package rules
import com.huan.drools.Fire
import com.huan.drools.Alarm
rule "insertLogical_發(fā)生火災(zāi)時(shí)，往工作內(nèi)存中插入告警對(duì)象"
    when
        $fire: Fire()
    then
        System.out.println("1、發(fā)生火災(zāi)時(shí)，往工作內(nèi)存中插入告警對(duì)象");
        insertLogical(new Alarm($fire));
end
rule "insertLogical_當(dāng)規(guī)則內(nèi)存中存在告警對(duì)象，進(jìn)行告警，然后刪除火災(zāi)對(duì)象"
    when
        $fire: Fire()
        $alarm: Alarm( fire == $fire )
    then
        System.out.println("2、進(jìn)行告警，然后刪除對(duì)應(yīng)的火災(zāi)對(duì)象");
        delete($fire);
end
rule "insertLogical_檢測(cè)告警對(duì)象是否還是存在-01"
    when
        Alarm()
    then
        System.out.println("3、insertLogical 插入的告警對(duì)象還存在");
end
rule "insertLogical_檢測(cè)告警對(duì)象不存在"
    when
        not Alarm()
    then
        System.out.println("3、insertLogical 插入的告警對(duì)象不存在");
end

kieSession.insert(new Fire());
kieSession.fireAllRules(new RuleNameStartsWithAgendaFilter("insertLogical_"));

package rules
import com.huan.drools.Fire
import com.huan.drools.Alarm
rule "update_當(dāng)存在火災(zāi)對(duì)象時(shí)，設(shè)置一個(gè)火災(zāi)的名字"
    when
        $fire: Fire(name == null)
    then
        System.out.println("1、設(shè)置火災(zāi)名字");
        $fire.setName("大火災(zāi)");
        update($fire)
end
rule "update_當(dāng)火災(zāi)對(duì)象存在名字時(shí)觸發(fā)"
    when
        $fire: Fire(name != null)
    then
        System.out.println("2、火災(zāi)對(duì)象的名字為: " + $fire.getName());
end

kieSession.insert(new Fire());
kieSession.fireAllRules(new RuleNameStartsWithAgendaFilter("update_"));

package rules
import com.huan.drools.Fire
import com.huan.drools.Alarm
rule "modify_當(dāng)存在火災(zāi)對(duì)象時(shí)，設(shè)置一個(gè)火災(zāi)的名字"
    when
        $fire: Fire(name == null)
    then
        System.out.println("1、設(shè)置火災(zāi)名字");
        modify($fire){
            setName("大火災(zāi)")
        }
end
rule "modify_當(dāng)火災(zāi)對(duì)象存在名字時(shí)觸發(fā)"
    when
        $fire: Fire(name != null)
    then
        System.out.println("2、火災(zāi)對(duì)象的名字為: " + $fire.getName());
end

kieSession.insert(new Fire());
kieSession.fireAllRules(new RuleNameStartsWithAgendaFilter("modify_"));

package rules
rule "drools_變量的使用"
    wh
        eval(true)
    then
        System.out.println("Match激活的當(dāng)前觸發(fā)規(guī)則: " + drools.getMatch());
        System.out.println("當(dāng)前觸發(fā)規(guī)則的名字: " + drools.getRule().getName());
        // System.out.println("終止規(guī)則執(zhí)行fireUntilHalt(): " + drools.getKieRuntime().halt());
        // System.out.println("激活A(yù)gendaGroup組: " + drools.getKieRuntime().getAgenda().getAgendaGroup( "CleanUp" ).setFocus());
        System.out.println("獲取所有全局變量: " + drools.getKieRuntime().getGlobals());
        // System.out.println("設(shè)置全局變量：" +  drools.getKieRuntime().setGlobal("username","huan"); );
        // System.out.println("獲取查詢結(jié)果：" + drools.getKieRuntime().getQueryResults());
end

package rules
import com.huan.drools.Customer
import com.huan.drools.Car
rule "rule_extends_規(guī)則一"
    when
        $c: Customer(age > 60)
    then
        modify($c){
            setDiscount(0.9)
        }
        System.out.println("觸發(fā)規(guī)則一：用戶年齡>60歲，打0.9折");
end
// 規(guī)則二繼承規(guī)則一的條件
rule "rule_extends_規(guī)則二" extends "rule_extends_規(guī)則一"
    when
        $car: Car()
    then
        modify($car){
            setFreeParking(true)
        }
        System.out.println("觸發(fā)規(guī)則二：用戶有車，免費(fèi)停車");
end

Car car = new Car();
Customer customer = new Customer();
customer.setAge(65);
kieSession.insert(customer);
kieSession.insert(car);
kieSession.fireAllRules(new RuleNameStartsWithAgendaFilter("rule_extends_"));

package rules
import com.huan.drools.Customer
import com.huan.drools.Car
rule "命名結(jié)果_rule"
    when
        $c: Customer(age > 60)
        do[giveDiscount] // 當(dāng)上方的條件成立時(shí)執(zhí)行 then [giveDiscount]
        $car: Car() // 此條件成立時(shí)，執(zhí)行默認(rèn)的 then
    then
        modify($car){
            setFreeParking(true)
        };
        System.out.println("用戶有車，免費(fèi)停車");
    then [giveDiscount]
        modify($c){
            setDiscount(0.9)
        };
        System.out.println("用戶年齡>60歲，打0.9折");
end

Car car = new Car();
Customer customer = new Customer();
customer.setAge(65);
kieSession.insert(customer);
kieSession.insert(car);
kieSession.fireAllRules(new RuleNameStartsWithAgendaFilter("命名結(jié)果_"));

rule "if else-if"
    when
       $customer: Customer(age > 60) // 規(guī)則內(nèi)存中存在Customer對(duì)象，并且age>60
        if($customer.getLevel() == 1) do[level1] // 用戶的級(jí)別是1，執(zhí)行then[level1],然后繼續(xù)執(zhí)行下方的條件
        else if ($customer.getLevel() == 2) break[level2] // 用戶的級(jí)別是2，執(zhí)行then[level2],不在執(zhí)行下方的條件
        else do[levelOther] // 其他的level級(jí)別，執(zhí)行then[levelOther],然后在執(zhí)行下方的條件
        Car()
    then
        System.out.println("我執(zhí)行了");
    then[level1]
        System.out.println("level1");
    then[level2]
        System.out.println("level2");
    then[levelOther]
        System.out.println("levelOther");
end