SWRL错误:没有注册的SWRL规则引擎

Question

我正在用OWL和SWRL构建一个Maven项目。我希望使用以下代码检索存储在.owl文件中的所有规则：

import org.semanticweb.owlapi.apibinding.OWLManager;
import org.semanticweb.owlapi.model.OWLOntology;
import org.semanticweb.owlapi.model.OWLOntologyCreationException;
import org.semanticweb.owlapi.model.OWLOntologyManager;
import org.swrlapi.core.SWRLAPIRule;
import org.swrlapi.core.SWRLRuleEngine;
import org.swrlapi.factory.SWRLAPIFactory;

import java.io.*;
import java.util.Set;

public class ManagingRules {

    public static void main(String[] args) throws OWLOntologyCreationException {

        OWLOntologyManager m = OWLManager.createOWLOntologyManager();
        OWLOntology ontology = m.loadOntologyFromOntologyDocument(new File("pwidasFinale.owl"));

        //taking SWRLs list
        SWRLRuleEngine ruleEngine = SWRLAPIFactory.createSWRLRuleEngine(ontology);

        // Get SWRL rules  
        Set<SWRLAPIRule> sets = ruleEngine.getSWRLRules();

        for(SWRLAPIRule item : sets){
            System.out.println(item.toString());
        }   
    }
}

没有编译错误。但是当我运行这个类时，我得到了这个通知。

Exception in thread "main" org.swrlapi.exceptions.NoRegisteredSWRLRuleEnginesException: no registered SWRL rule engines
    at org.swrlapi.factory.DefaultSWRLRuleAndQueryEngineFactory.createSWRLRuleEngine(DefaultSWRLRuleAndQueryEngineFactory.java:47)
    at org.swrlapi.factory.SWRLAPIFactory.createSWRLRuleEngine(SWRLAPIFactory.java:39)
    at ManagingRules.main(ManagingRules.java:20)

实际上，在.owl文件中，存储了15个规则。

请告诉我在哪里修理。

我一直在搜索SWRL的方便教程或常见问题，包括这。但是，这似乎没有多大帮助。

我的编码能力很差

Answer 1

问题不在于输入文件，而在于没有已注册的SWRL规则引擎可用。在使用SWRLAPIFactory之前，这种设置很可能在Protege中进行。

这个需求在这里描述：https://github.com/protegeproject/swrlapi/

If you'd like to be able to execute SWRL rules or SQWRL queries you will need a SWRLAPI-based rule engine implementation. Currently, a Drools-based SWRL rule engine implementation is provided. This implementation is also hosted on Maven Central.

我认为您需要将该页面中描述的依赖项添加到项目中。