[英]Can't load a model from an owl file which is in a jar file in Jena
我试图从一个 owl 文件加载一个 owl-time 模型,该文件是我的 jar 文件中的一个条目,但它不起作用。 我正在做类似的事情:
String path = "jar:file:/L:/WRK/Java/protobitbucket/jena/samples/JenaModule.jar!/org/da/protoframework/jena/owl-time.owl";
OntModel owlTimeModel = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM_RDFS_INF);
owlTimeModel.setNsPrefix("time", OWL_TIME + "#");
FileManager.get().readModel(owlTimeModel, path);
m.add(owlTimeModel);
我有以下例外:
org.apache.jena.shared.NotFoundException: Not found: jar:file:/L:/WRK/Java/protobitbucket/jena/samples/JenaModule.jar!/org/da/protoframework/jena/owl-time.owl
at org.apache.jena.riot.adapters.AdapterFileManager.readModelWorker(AdapterFileManager.java:293)
at org.apache.jena.util.FileManager.readModel(FileManager.java:342)
at org.apache.jena.util.FileManager.readModel(FileManager.java:326)
我尝试改用 IRI:
IRIFactory factory = IRIFactory.iriImplementation();
URI owlTimeURI = getClass().getResource("owl-time.owl").toURI();
IRI iri = factory.construct(owlTimeURI);
OntModel owlTimeModel = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM_RDFS_INF);
owlTimeModel.setNsPrefix("time", OWL_TIME + "#");
FileManager.get().readModel(owlTimeModel, iri.getFragment());
m.add(owlTimeModel);
但这次我有这个例外:
org.apache.jena.iri.impl.IRIImplException: <jar:file:/L:/WRK/Java/protobitbucket/jena/samples/owltime/../JenaModule.jar!/org/da/protoframework/jena/owl-time.owl> Code: 44/UNREGISTERED_IANA_SCHEME in SCHEME: The scheme name does not have a "-" in it, but is not in the IANA registry. (Last updated from the registry January 2006)
at org.apache.jena.iri.impl.AbsIRIFactoryImpl.throwAnyErrors(AbsIRIFactoryImpl.java:71)
at org.apache.jena.iri.impl.AbsIRIFactoryImpl.construct(AbsIRIFactoryImpl.java:66)
从 jena 的 jar 文件中的条目加载模型的正确方法是什么? 甚至有可能吗?
两种方式:
1:: 在普通 Java 中打开一个 InputStream:
如果 jar 文件在类路径上,则向上一个 InputStream 到文件中的资源(标准 java 操作)。 如果它不在类路径上,请使用运行时库打开 zip 文件中项目的输入流。
2:: 将 jar 文件添加为可搜索项
配置一个StreamManager
- 类路径加载器默认在那里,你可以添加一个LocatorZip
https://jena.apache.org/documentation/notes/stream-manager.html
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