Examples with Statement org.apache.jena.rdf.model.Statement used on opensource projects

Example 1 with Statement

use of org.apache.jena.rdf.model.Statement in project jena by apache.

the class ExModelSDB method main.

public static void main(String... argv) {
    Store store = StoreFactory.create("sdb.ttl");
    Model model = SDBFactory.connectDefaultModel(store);
    StmtIterator sIter = model.listStatements();
    for (; sIter.hasNext(); ) {
        Statement stmt = sIter.nextStatement();
        System.out.println(stmt);
    }
    sIter.close();
    store.close();
}

Example 2 with Statement

use of org.apache.jena.rdf.model.Statement in project jena by apache.

the class TextIndexLuceneAssembler method open.

/*
    <#index> a :TextIndexLucene ;
        #text:directory "mem" ;
        #text:directory "DIR" ;
        text:directory <file:DIR> ;
        text:entityMap <#endMap> ;
        .
    */
@SuppressWarnings("resource")
@Override
public TextIndex open(Assembler a, Resource root, Mode mode) {
    try {
        if (!GraphUtils.exactlyOneProperty(root, pDirectory))
            throw new TextIndexException("No 'text:directory' property on " + root);
        Directory directory;
        RDFNode n = root.getProperty(pDirectory).getObject();
        if (n.isLiteral()) {
            String literalValue = n.asLiteral().getLexicalForm();
            if (literalValue.equals("mem")) {
                directory = new RAMDirectory();
            } else {
                File dir = new File(literalValue);
                directory = FSDirectory.open(dir.toPath());
            }
        } else {
            Resource x = n.asResource();
            String path = IRILib.IRIToFilename(x.getURI());
            File dir = new File(path);
            directory = FSDirectory.open(dir.toPath());
        }
        Analyzer analyzer = null;
        Statement analyzerStatement = root.getProperty(pAnalyzer);
        if (null != analyzerStatement) {
            RDFNode aNode = analyzerStatement.getObject();
            if (!aNode.isResource()) {
                throw new TextIndexException("Text analyzer property is not a resource : " + aNode);
            }
            Resource analyzerResource = (Resource) aNode;
            analyzer = (Analyzer) a.open(analyzerResource);
        }
        Analyzer queryAnalyzer = null;
        Statement queryAnalyzerStatement = root.getProperty(pQueryAnalyzer);
        if (null != queryAnalyzerStatement) {
            RDFNode qaNode = queryAnalyzerStatement.getObject();
            if (!qaNode.isResource()) {
                throw new TextIndexException("Text query analyzer property is not a resource : " + qaNode);
            }
            Resource analyzerResource = (Resource) qaNode;
            queryAnalyzer = (Analyzer) a.open(analyzerResource);
        }
        String queryParser = null;
        Statement queryParserStatement = root.getProperty(pQueryParser);
        if (null != queryParserStatement) {
            RDFNode qpNode = queryParserStatement.getObject();
            if (!qpNode.isResource()) {
                throw new TextIndexException("Text query parser property is not a resource : " + qpNode);
            }
            Resource parserResource = (Resource) qpNode;
            queryParser = parserResource.getLocalName();
        }
        boolean isMultilingualSupport = false;
        Statement mlSupportStatement = root.getProperty(pMultilingualSupport);
        if (null != mlSupportStatement) {
            RDFNode mlsNode = mlSupportStatement.getObject();
            if (!mlsNode.isLiteral()) {
                throw new TextIndexException("text:multilingualSupport property must be a string : " + mlsNode);
            }
            isMultilingualSupport = mlsNode.asLiteral().getBoolean();
        }
        boolean storeValues = false;
        Statement storeValuesStatement = root.getProperty(pStoreValues);
        if (null != storeValuesStatement) {
            RDFNode svNode = storeValuesStatement.getObject();
            if (!svNode.isLiteral()) {
                throw new TextIndexException("text:storeValues property must be a string : " + svNode);
            }
            storeValues = svNode.asLiteral().getBoolean();
        }
        Resource r = GraphUtils.getResourceValue(root, pEntityMap);
        EntityDefinition docDef = (EntityDefinition) a.open(r);
        TextIndexConfig config = new TextIndexConfig(docDef);
        config.setAnalyzer(analyzer);
        config.setQueryAnalyzer(queryAnalyzer);
        config.setQueryParser(queryParser);
        config.setMultilingualSupport(isMultilingualSupport);
        config.setValueStored(storeValues);
        return TextDatasetFactory.createLuceneIndex(directory, config);
    } catch (IOException e) {
        IO.exception(e);
        return null;
    }
}

Example 3 with Statement

use of org.apache.jena.rdf.model.Statement in project jena by apache.

the class ConfigurableAnalyzerAssembler method toFilterList.

private List<String> toFilterList(Resource list) {
    List<String> result = new ArrayList<>();
    Resource current = list;
    while (current != null && !current.equals(RDF.nil)) {
        Statement stmt = current.getProperty(RDF.first);
        if (stmt == null) {
            throw new TextIndexException("filter list not well formed");
        }
        RDFNode node = stmt.getObject();
        if (!node.isResource()) {
            throw new TextIndexException("filter is not a resource : " + node);
        }
        result.add(node.asResource().getLocalName());
        stmt = current.getProperty(RDF.rest);
        if (stmt == null) {
            throw new TextIndexException("filter list not terminated by rdf:nil");
        }
        node = stmt.getObject();
        if (!node.isResource()) {
            throw new TextIndexException("filter list node is not a resource : " + node);
        }
        current = node.asResource();
    }
    return result;
}

Example 4 with Statement

use of org.apache.jena.rdf.model.Statement in project jena by apache.

the class T_TransSystem method describeWithAbort.

public static int describeWithAbort(String queryStr, DatasetGraph dsg, long abortTime) {
    int counter = 0;
    Query query = QueryFactory.create(queryStr, Syntax.syntaxARQ);
    try (QueryExecution qExec = QueryExecutionFactory.create(query, DatasetFactory.wrap(dsg))) {
        qExec.setTimeout(abortTime);
        Model model = qExec.execDescribe();
        //ResultSet rs = qExec.execSelect() ;
        for (Iterator<Statement> stmIterator = model.listStatements(); stmIterator.hasNext(); ) {
            stmIterator.next();
            counter++;
        }
        return counter;
    }
}

Example 5 with Statement

use of org.apache.jena.rdf.model.Statement in project jena by apache.

the class TestModelSetOperations method testUnion.

public void testUnion() {
    ModelHelper.modelAdd(model, "a P b; w R x");
    ModelHelper.modelAdd(model2, "w R x; y S z");
    final Model um = model.union(model2);
    Assert.assertFalse(model.containsAll(model2));
    Assert.assertFalse(model2.containsAll(model));
    Assert.assertTrue(um.containsAll(model));
    Assert.assertTrue(um.containsAll(model2));
    for (final StmtIterator it = um.listStatements(); it.hasNext(); ) {
        final Statement s = it.nextStatement();
        Assert.assertTrue(model.contains(s) || model2.contains(s));
    }
    for (final StmtIterator it = model.listStatements(); it.hasNext(); ) {
        Assert.assertTrue(um.contains(it.nextStatement()));
    }
    for (final StmtIterator it = model2.listStatements(); it.hasNext(); ) {
        Assert.assertTrue(um.contains(it.nextStatement()));
    }
    Assert.assertTrue(um.containsAll(model.listStatements()));
    Assert.assertTrue(um.containsAll(model2.listStatements()));
}