jbpm 与 OSGi、Maven 等的集成

Question

我正在开发基于 OSGi (apache felix) 和 maven 的微服务。 我正在学习jbpm。 我已经创建了一个需要从我的 OSGi java 项目中调用的决策表。 下面是我从 bpmn 的 javadoc 中使用的代码，但似乎它不起作用，因为虽然我从 maven 导入了一堆依赖项，但仍然有很多其他依赖项，例如

KnowledgeBaseConfiguration
ResourceFactoryService
ResourceFactoryService
KnowledgeBase

仍未解决。

<drools.version>7.0.0.Final</drools.version>
  
  <dependency>
    <groupId>org.jbpm</groupId>
    <artifactId>jbpm-bpmn2</artifactId>
    <version>${drools.version}</version>
  </dependency><!-- https://mvnrepository.com/artifact/org.drools/drools-core -->
  <dependency>
    <groupId>org.drools</groupId>
    <artifactId>drools-core</artifactId>
    <version>${drools.version}</version>
  </dependency><!-- https://mvnrepository.com/artifact/org.drools/drools-osgi-integration --><!-- https://mvnrepository.com/artifact/org.drools/drools-decisiontables -->
  <dependency>
    <groupId>org.drools</groupId>
    <artifactId>drools-decisiontables</artifactId>
    <version>${drools.version}</version>
  </dependency><!-- https://mvnrepository.com/artifact/org.drools/drools-api -->
  <dependency>
    <groupId>org.drools</groupId>
    <artifactId>drools-compiler</artifactId>
    <version>${drools.version}</version>
  </dependency>
  <dependency>
    <groupId>org.kie</groupId>
    <artifactId>kie-api</artifactId>
    <version>${drools.version}</version>
  </dependency>

这是我在jbpm的文档中找到的与OSGi集成部分的逻辑

    ServiceReference serviceRef = bundleContext.getServiceReference( ServiceRegistry.class.getName() );
    ServiceRegistry registry = (ServiceRegistry) bundleContext.getService( serviceRef );

    KnowledgeBuilderFactoryService knowledgeBuilderFactoryService = registry.get( KnowledgeBuilderFactoryService.class );
    KnowledgeBaseFactoryService knowledgeBaseFactoryService = registry.get( KnowledgeBaseFactoryService.class );
    ResourceFactoryService resourceFactoryService = registry.get( ResourceFactoryService.class );

    KnowledgeBaseConfiguration kbaseConf = knowledgeBaseFactoryService.newKnowledgeBaseConfiguration( null, getClass().getClassLoader() );

    KnowledgeBuilderConfiguration kbConf = knowledgeBuilderFactoryService.newKnowledgeBuilderConfiguration( null, getClass().getClassLoader() );
    KnowledgeBuilder kbuilder = knowledgeBuilderFactoryService.newKnowledgeBuilder( kbConf );
    kbuilder.add( resourceFactoryService.newClassPathResource( "MyProcess.bpmn", Dummy.class ), ResourceType.BPMN2 );

    kbaseConf = knowledgeBaseFactoryService.newKnowledgeBaseConfiguration( null, getClass().getClassLoader() );
    KnowledgeBase kbase = knowledgeBaseFactoryService.newKnowledgeBase( kbaseConf );
    kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() );

    StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
    return Optional.empty();

我的问题是：

1. 如何集成 jbpm 和 Osgi java 来调用和执行 bpmn 或决策表？
2. 为什么这些依赖关系没有解决？我也试过最新的 7.46.0.FINAL 版本的 drools？

Answer 1

对于问题 1，您需要来自组 org.kie.server 的 kie-server-client。

您可能使用的其他依赖项是 apis 中的定义（问题 2）：来自组 org.jbpm 的 jbpm-kie-services 和来自组 org.kie 的 kie-api, kie-internal。