[英]Can't load a model from an owl file which is in a jar file in Jena
我試圖從一個 owl 文件加載一個 owl-time 模型,該文件是我的 jar 文件中的一個條目,但它不起作用。 我正在做類似的事情:
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)
我嘗試改用 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);
但這次我有這個例外:
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)
從 jena 的 jar 文件中的條目加載模型的正確方法是什么? 甚至有可能嗎?
兩種方式:
1:: 在普通 Java 中打開一個 InputStream:
如果 jar 文件在類路徑上,則向上一個 InputStream 到文件中的資源(標准 java 操作)。 如果它不在類路徑上,請使用運行時庫打開 zip 文件中項目的輸入流。
2:: 將 jar 文件添加為可搜索項
配置一個StreamManager
- 類路徑加載器默認在那里,你可以添加一個LocatorZip
https://jena.apache.org/documentation/notes/stream-manager.html
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