Examples with Statement org.eclipse.rdf4j.model.Statement used on opensource projects

Example 51 with Statement

use of org.eclipse.rdf4j.model.Statement in project rdf4j by eclipse.

the class SPARQLConnection method getStatementsQuadMode.

private RepositoryResult<Statement> getStatementsQuadMode(Resource subj, IRI pred, Value obj, boolean includeInferred, Resource... contexts) throws MalformedQueryException, RepositoryException, QueryEvaluationException {
    TupleQueryResult qRes = null;
    RepositoryResult<Statement> result = null;
    boolean allGood = false;
    try {
        TupleQuery tupleQuery = prepareTupleQuery(SPARQL, EVERYTHING_WITH_GRAPH);
        setBindings(tupleQuery, subj, pred, obj, contexts);
        tupleQuery.setIncludeInferred(includeInferred);
        qRes = tupleQuery.evaluate();
        result = new RepositoryResult<Statement>(new ExceptionConvertingIteration<Statement, RepositoryException>(toStatementIteration(qRes, subj, pred, obj)) {

            @Override
            protected RepositoryException convert(Exception e) {
                return new RepositoryException(e);
            }
        });
        allGood = true;
        return result;
    } finally {
        if (!allGood) {
            try {
                if (result != null) {
                    result.close();
                }
            } finally {
                if (qRes != null) {
                    qRes.close();
                }
            }
        }
    }
}

Example 52 with Statement

use of org.eclipse.rdf4j.model.Statement in project rdf4j by eclipse.

the class SPARQLConnection method getStatementsSingleTriple.

private RepositoryResult<Statement> getStatementsSingleTriple(Resource subj, IRI pred, Value obj, boolean includeInferred, Resource... contexts) throws RepositoryException {
    if (hasStatement(subj, pred, obj, includeInferred, contexts)) {
        Statement st = getValueFactory().createStatement(subj, pred, obj);
        CloseableIteration<Statement, RepositoryException> cursor;
        cursor = new SingletonIteration<Statement, RepositoryException>(st);
        return new RepositoryResult<Statement>(cursor);
    } else {
        return new RepositoryResult<Statement>(new EmptyIteration<Statement, RepositoryException>());
    }
}

Example 53 with Statement

use of org.eclipse.rdf4j.model.Statement in project rdf4j by eclipse.

the class RepositoryConfigUtil method getRepositoryIDs.

@Deprecated
public static Set<String> getRepositoryIDs(Repository repository) throws RepositoryException {
    RepositoryConnection con = repository.getConnection();
    try {
        Set<String> idSet = new LinkedHashSet<String>();
        RepositoryResult<Statement> idStatementIter = con.getStatements(null, REPOSITORYID, null, true);
        try {
            while (idStatementIter.hasNext()) {
                Statement idStatement = idStatementIter.next();
                if (idStatement.getObject() instanceof Literal) {
                    Literal idLiteral = (Literal) idStatement.getObject();
                    idSet.add(idLiteral.getLabel());
                }
            }
        } finally {
            idStatementIter.close();
        }
        return idSet;
    } finally {
        con.close();
    }
}

Example 54 with Statement

use of org.eclipse.rdf4j.model.Statement in project rdf4j by eclipse.

the class RepositoryConfigUtil method getIDStatement.

private static Statement getIDStatement(RepositoryConnection con, String repositoryID) throws RepositoryException, RepositoryConfigException {
    Literal idLiteral = con.getRepository().getValueFactory().createLiteral(repositoryID);
    List<Statement> idStatementList = Iterations.asList(con.getStatements(null, REPOSITORYID, idLiteral, true));
    if (idStatementList.size() == 1) {
        return idStatementList.get(0);
    } else if (idStatementList.isEmpty()) {
        return null;
    } else {
        throw new RepositoryConfigException("Multiple ID-statements for repository ID " + repositoryID);
    }
}

Example 55 with Statement

use of org.eclipse.rdf4j.model.Statement in project rdf4j by eclipse.

the class RepositoryConfigUtil method getRepositoryConfig.

@Deprecated
public static RepositoryConfig getRepositoryConfig(Repository repository, String repositoryID) throws RepositoryConfigException, RepositoryException {
    RepositoryConnection con = repository.getConnection();
    try {
        Statement idStatement = getIDStatement(con, repositoryID);
        if (idStatement == null) {
            // No such config
            return null;
        }
        Resource repositoryNode = idStatement.getSubject();
        Resource context = idStatement.getContext();
        if (context == null) {
            throw new RepositoryException("No configuration context for repository " + repositoryID);
        }
        Model contextGraph = QueryResults.asModel(con.getStatements(null, null, null, true, context));
        return RepositoryConfig.create(contextGraph, repositoryNode);
    } finally {
        con.close();
    }
}