java - 如何使用耶拿图书馆将三元组插入议会三元组存储

Question

嗨，我想添加基于空间的三元组

http://www.izmirdeafet.com/Disaster htp://www.opengis.net/ont/geosparql#asWKT> "htp://www.opengis.net/def/crs/OGC/1.3/CRS84 POINT (8.46035239692792 51.48661096320327)"^^<http://www.opengis.net/ont/sf#wktLiteral>

进入议会三重商店 jena下面的java代码中的库，但我在下面出现了错误。我有基于空间的本体，我已经将其添加到三重存储中。

public static void main(String[] args) {       
    // set to false when running the second time to avoid recreating the graphs/index 
    boolean firstTime = true;
    // create spatial index factory and configure for GeoSPARQL. This is used
    // by the GraphStore whenever a new named graph is created.
    SpatialIndexFactory factory = new SpatialIndexFactory();
    Properties properties = new Properties();
    properties.setProperty(Constants.GEOMETRY_INDEX_TYPE,
                     Constants.GEOMETRY_INDEX_RTREE);
    properties.setProperty(Constants.GEOSPARQL_ENABLED,
                     Boolean.TRUE.toString());
    factory.configure(properties);

    // register factory
    IndexFactoryRegistry.getInstance().register(factory);

    // create a Parliament graph and graph store
    //KbGraph graph= KbGraphFactory.createNamedGraph();
    KbGraph graph = 
    KbGraphFactory.createDefaultGraph("file:C:\\ParliamentKB\\data\\");
    KbGraphStore graphStore = new KbGraphStore(graph);
    graphStore.initialize();

    if (firstTime) {
        // create spatial index from factory
        SpatialIndex index = factory.createIndex(graph, null);

        // register index with IndexManager
        IndexManager.getInstance().register(graph, null, factory, index);

        // the following tells the graph store that the graph is now an
        // indexing graph. This is necessary so that the next time Parliament
        // loads, the index is read in automatically.
        graphStore.setIndexingEnabled(KbGraphStore.DEFAULT_GRAPH_NODE, true);
    }

    // create a Jena model
    Model model = ModelFactory.createModelForGraph(graph);

    // load data
    String fileName =
    "C:\\Users\\Can\\Desktop\\DisasterOntologyEnglish\\disaster.rdf";
    RDFFormat dataFormat = RDFFormat.parseFilename(fileName);
    FileManager.get().readModel(model, fileName, dataFormat.toString());

    // get index and print size
    System.out.println(IndexManager.getInstance().
        getIndexes(graph).get(0).size());

    // do a spatial query
    String query = ""
    + "\nPREFIX my:  <http://somewhere/ApplicationSchema#>"
    + "\nPREFIX geo: <http://www.opengis.net/ont/OGC-GeoSPARQL/1.0/>"
    + "\nPREFIX geof: 
     <http://www.opengis.net/def/queryLanguage/OGC-GeoSPARQL/1.0/function/>"
    + "\nSELECT ?f" + "\nWHERE { my:A my:hasExactGeometry ?aGeom ."
    + "\n        ?aGeom geo:asWKT ?aWKT ."
    + "\n        ?f my:hasExactGeometry ?fGeom ."
    + "\n        ?fGeom geo:asWKT ?fWKT ."
    + "\n        FILTER (geof:sf-contains(?aWKT, ?fWKT) &&"
    + "\n                !sameTerm(?aGeom, ?fGeom)) " + "\n}";

    Query q = QueryFactory.create(query, Syntax.syntaxARQ);
    ResultSet rs = QueryExecutionFactory.create(q, model).execSelect();
    while (rs.hasNext()) {
        System.out.println(rs.nextSolution());
    }
}

错误

   Exception in thread "main" java.lang.UnsatisfiedLinkError: 
    no Parliament in   java.library.path
    at java.lang.ClassLoader.loadLibrary(Unknown Source)
    at java.lang.Runtime.loadLibrary0(Unknown Source)
    at java.lang.System.loadLibrary(Unknown Source)
    at com.bbn.parliament.jni.Config.<clinit>(Config.java:184)
    at com.bbn.parliament.jena.graph.KbGraphFactory.getKbConfigForDefaultGraph
         (KbGraphFactory.java:81)
    at com.bbn.parliament.jena.graph.KbGraphFactory.createDefaultGraph
         (KbGraphFactory.java:38)
    at com.disaster.demo.GeoSPARQLTest.main(GeoSPARQLTest.java:46)

我认为问题来自createdefaultgraph部分:

你说的目录路径取自 ParliamentConfig.txt

  KbGraph graph = KbGraphFactory.createDefaultGraph("file:C:\\ParliamentKB\\data\\");

我是这样写的，但是没用。

Answer 1

链接不满足的错误可能表示在java路径中找不到Parliament.dll。

检查此 SO 以获取有关 java 路径中 dll 的详细信息: java.lang.UnsatisfiedLinkError no *****.dll in java.library.path

此外，您是否遵循议会设置指南？ http://parliament.semwebcentral.org/ParliamentUserGuide.pdf

您可能还想确保您使用的是正确的 dll...已经有一段时间了，所以我可能是错的，但我认为有 32 位和 64 位版本。