KieScanner无法自动获取最新版本！

Question

我想将drools工作台6.4.0集成到我自己的应用程序中。

下面是主类：

package com.example;
import com.idss.poc.CouponFact;
import com.idss.poc.Result;
import org.codehaus.plexus.util.FileUtils;
import org.drools.compiler.kie.builder.impl.KieServicesImpl;
import org.drools.compiler.kproject.ReleaseIdImpl;
import org.drools.core.io.impl.UrlResource;
import org.kie.api.KieServices;
import org.kie.api.builder.KieModule;
import org.kie.api.builder.KieRepository;
import org.kie.api.builder.KieScanner;
import org.kie.api.builder.ReleaseId;
import org.kie.api.runtime.KieContainer;
import org.kie.api.runtime.StatelessKieSession;
import org.kie.scanner.KieScannerFactoryServiceImpl;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;


public class FunctionExample {
    public static void main(String[] args) {
        KieServices ks = KieServices.Factory.get();
        ReleaseId releaseId = ks.newReleaseId( "com.test", "poc", "LATEST" );

        KieContainer kContainer = ks.newKieContainer(releaseId);
        KieScanner kieScanner = ks.newKieScanner(kContainer);

        kieScanner.start( 10000L );

        Scanner scanner = new Scanner(System.in);

        while (true) {
            kieScanner.scanNow();
            String line = scanner.nextLine();
            runRule(kContainer);
        }
    }

    private static void runRule(KieContainer kieKontainer) {
        StatelessKieSession kSession =kieKontainer.newStatelessKieSession("ks");
        Result result = new Result();
        List<String> list = new ArrayList<String>();
        result.setRules(list);

        kSession.setGlobal("result", result);

        CouponFact cf = new CouponFact();
        cf.setPhoneCount(2);
        cf.setUserCount(2);
        cf.setDeviceCount(2);
        cf.setIp10mCount(10);
        cf.setIpDayCount(10);
        kSession.execute(cf);

        System.out.println(result.getScore() + "," + result.getRules());
    }
}

下面是我自己的应用程序使用的settings.xml。

<?xml version="1.0" encoding="UTF-8"?>
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" 
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
  <localRepository>~/.m2/repository</localRepository>
  <pluginGroups>
  </pluginGroups>
  <proxies>
  </proxies>
  <servers>
    <server>
      <id>guvnor-m2-repo</id>
      <username>workbench</username>
      <password>workbench!</password>
      <configuration>
        <wagonProvider>httpclient</wagonProvider>
        <httpConfiguration>
          <all>
            <usePreemptive>true</usePreemptive>
          </all>
        </httpConfiguration>
      </configuration>
    </server>
    <server>
      <id>mymirror</id>
      <username>workbench</username>
      <password>workbench!</password>
      <configuration>
        <wagonProvider>httpclient</wagonProvider>
        <httpConfiguration>
          <all>
            <usePreemptive>true</usePreemptive>
          </all>
        </httpConfiguration>
      </configuration>
    </server>
  </servers>
  <mirrors>
    <mirror>
      <id>mymirror</id>
      <url>http://10.10.10.57:8080/kie-wb/maven2</url>
      <mirrorOf>*</mirrorOf>
      <layout>default</layout>
    </mirror>
  </mirrors>
  <profiles>
    <profile>
      <id>guvnor-m2-repo</id>
      <activation>
        <activeByDefault>true</activeByDefault>
      </activation>
      <repositories>
        <repository>
            <id>guvnor-m2-repo</id>
            <name>Guvnor M2 Repo</name>
            <url>http://10.10.10.57:8080/kie-wb/maven2</url>
            <releases>
              <enabled>true</enabled>
            </releases>
            <updatePolicy>always</updatePolicy>
        </repository>
      </repositories>
    </profile>
  </profiles>
  <activeProfiles>
   <activeProfile>guvnor-m2-repo</activeProfile>
  </activeProfiles>
</settings>

当我在工作台中更新我的drools规则，并升级我的存储库的版本时，但是我的应用程序不能自动获得我的存储库的最新版本。我得到的日志如下：

11:50:24.158 [Timer-0] DEBUG org.kie.scanner.embedder.MavenEmbedderUtils - Not in OSGi: using plexus based maven parser
11:50:24.212 [Timer-0] DEBUG org.eclipse.aether.internal.impl.DefaultLocalRepositoryProvider - Using manager EnhancedLocalRepositoryManager with priority 10.0 for /Users/pinter/Desktop/RiskGuard/~/.m2/repository
11:50:24.212 [Timer-0] DEBUG org.eclipse.aether.internal.impl.DefaultLocalRepositoryProvider - Using manager EnhancedLocalRepositoryManager with priority 10.0 for /Users/pinter/Desktop/RiskGuard/~/.m2/repository
11:50:24.213 [Timer-0] DEBUG org.eclipse.aether.internal.impl.DefaultRemoteRepositoryManager - Using mirror mymirror (http://10.10.10.57:8080/kie-wb/maven2) for guvnor-m2-repo (http://10.10.10.57:8080/kie-wb/maven2).
11:50:24.215 [Timer-0] DEBUG org.eclipse.aether.internal.impl.DefaultRemoteRepositoryManager - Using mirror mymirror (http://10.10.10.57:8080/kie-wb/maven2) for guvnor-m2-repo (http://10.10.10.57:8080/kie-wb/maven2).
11:50:24.215 [Timer-0] DEBUG org.eclipse.aether.internal.impl.DefaultRemoteRepositoryManager - Using mirror mymirror (http://10.10.10.57:8080/kie-wb/maven2) for central (https://repo.maven.apache.org/maven2).
11:50:24.216 [Timer-0] DEBUG org.eclipse.aether.internal.impl.DefaultDependencyCollector - Dependency collection stats: {ConflictMarker.analyzeTime=0, ConflictMarker.markTime=0, ConflictMarker.nodeCount=1, ConflictIdSorter.graphTime=0, ConflictIdSorter.topsortTime=0, ConflictIdSorter.conflictIdCount=0, ConflictIdSorter.conflictIdCycleCount=0, ConflictResolver.totalTime=0, ConflictResolver.conflictItemCount=0, DefaultDependencyCollector.collectTime=0, DefaultDependencyCollector.transformTime=0}
11:50:24.217 [Timer-0] DEBUG org.eclipse.aether.internal.impl.DefaultLocalRepositoryProvider - Using manager EnhancedLocalRepositoryManager with priority 10.0 for ~/.m2/repository
11:50:24.217 [Timer-0] DEBUG org.eclipse.aether.internal.impl.DefaultUpdateCheckManager - Skipped remote request for com.idss:poc/maven-metadata.xml, locally cached metadata up-to-date.

有人能帮我解决这个问题吗？谢谢!

Answer 1

如果您在应用程序的version number字段中使用LATEST，KieScanner会尝试将本地存储库中可用的jar的版本号与kie-workbench上提供的jar的版本号进行匹配。如果两个版本相同，则不从远程存储库获取jar，而从本地存储库使用jar。每次“构建和部署”时，一定要增加版本号，以使更改反映在您的应用程序端。

如果每次部署时都递增版本号对您来说太麻烦了，我建议您在版本号中使用-SNAPSHOT。快照版本始终从远程存储库获取，即使本地存储库中有相同的版本也是如此。<version>-SNAPSHOT应仅用于开发目的。

Answer 2

我假设您输入" latest“是为了获取KJAR的最新快照版本。

如果是这种情况，我认为您需要将快照更新策略设置为大于默认值"daily“的值。此外，您的maven设置文件中似乎有一个错误，因为updatePolicy标记没有正确嵌套。我建议你尝试一下这样的方法：

  <profiles>
    <profile>
      <id>guvnor-m2-repo</id>
      <activation>
        <activeByDefault>true</activeByDefault>
      </activation>
      <repositories>
        <repository>
            <id>guvnor-m2-repo</id>
            <name>Guvnor M2 Repo</name>
            <url>http://10.10.10.57:8080/kie-wb/maven2</url>

      <releases>
        <enabled>false</enabled>
        <updatePolicy>always</updatePolicy>
      </releases>
      <snapshots>
        <enabled>true</enabled>
        <updatePolicy>always</updatePolicy>
      </snapshots>

        </repository>
      </repositories>
    </profile>
  </profiles>

参考：https://maven.apache.org/settings.html#Repositories