Examples with Value org.openrdf.model.Value used on opensource projects

Example 31 with Value

use of org.openrdf.model.Value in project backstage by zepheira.

the class DomLensNode method generateContent.

protected void generateContent(Value value, Scriptable result, Database database, SailRepositoryConnection connection) {
    ScriptableArrayBuilder arrayBuilder = new ScriptableArrayBuilder();
    String valueType = "text";
    try {
        ExpressionQueryResult eqr = _contentExpression.computeOutputOnValue(value, database, connection);
        if (eqr != null) {
            TupleQueryResult queryResult = eqr.tupleQuery.evaluate();
            try {
                while (queryResult.hasNext()) {
                    BindingSet bindingSet = queryResult.next();
                    Value value2 = bindingSet.getValue(eqr.resultVar.getName());
                    arrayBuilder.add(renderInnerValue(value2, database, connection));
                }
            } finally {
                queryResult.close();
            }
        }
    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    DefaultScriptableObject o = new DefaultScriptableObject();
    o.put("valueType", o, valueType);
    o.put("values", o, arrayBuilder.toArray());
    result.put("content", result, o);
}

Example 32 with Value

use of org.openrdf.model.Value in project backstage by zepheira.

the class DomLensNode method testCondition.

protected boolean testCondition(Value value, Scriptable result, Database database, SailRepositoryConnection connection) {
    if (_conditionTest == null) {
        return true;
    }
    boolean r = false;
    try {
        ExpressionQueryResult eqr = _conditionExpression.computeOutputOnValue(value, database, connection);
        if (eqr != null) {
            TupleQueryResult queryResult = eqr.tupleQuery.evaluate();
            try {
                if ("if-exists".equals(_conditionTest)) {
                    r = queryResult.hasNext();
                } else if ("if".equals(_conditionTest)) {
                    if (queryResult.hasNext()) {
                        BindingSet bindingSet = queryResult.next();
                        Value value2 = bindingSet.getValue(eqr.resultVar.getName());
                        if (value2 instanceof Literal) {
                            r = ((Literal) value2).booleanValue();
                        }
                    }
                }
            } finally {
                queryResult.close();
            }
        } else {
            if (value instanceof Literal) {
                r = ((Literal) value).booleanValue();
            }
        }
    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    result.put("condition", result, r);
    return r;
}

Example 33 with Value

use of org.openrdf.model.Value in project backstage by zepheira.

the class Database method createTypeRecord.

private TypeRecord createTypeRecord(URI type, SailConnection sc) {
    String id = getTypeId(type, sc);
    String label = SailUtilities.getStringObject(sc, type, RDFS.LABEL, id);
    Properties properties = new Properties();
    CloseableIteration<? extends Statement, SailException> i = null;
    try {
        i = sc.getStatements(type, null, null, true);
    } catch (SailException e) {
        _logger.error("Failed to get all statements in order to get type record", e);
        return null;
    }
    if (i != null) {
        try {
            while (i.hasNext()) {
                Statement s = i.next();
                URI p = s.getPredicate();
                Value o = s.getObject();
                if (!p.equals(RDFS.LABEL) && !p.equals(ExhibitOntology.ID)) {
                    properties.put(p.getLocalName(), SailUtilities.valueToString(o));
                }
            }
        } catch (SailException e) {
            _logger.warn("Failed to iterate through statements", e);
        } finally {
            try {
                i.close();
            } catch (SailException e) {
                _logger.warn("Failed to close statement iterator", e);
            }
        }
    }
    return new TypeRecord(type, id, label, properties);
}

Example 34 with Value

use of org.openrdf.model.Value in project stanbol by apache.

the class RdfRepresentation method add.

@Override
public void add(String field, Object value) throws IllegalArgumentException {
    if (field == null) {
        throw new IllegalArgumentException("The parsed field MUST NOT be NULL");
    } else if (field.isEmpty()) {
        throw new IllegalArgumentException("The parsed field MUST NOT be Empty");
    }
    if (value == null) {
        throw new IllegalArgumentException("NULL values are not supported by Representations");
    }
    URI property = sesameFactory.createURI(field);
    Collection<Object> values = new ArrayList<Object>();
    //process the parsed value with the Utility Method ->
    // this converts Objects as defined in the specification
    ModelUtils.checkValues(factory, value, values);
    //We still need to implement support for specific types supported by this implementation
    for (Object current : values) {
        if (current instanceof Value) {
            //native support for Sesame types!
            addValue(property, (Value) current);
        } else if (current instanceof RdfWrapper) {
            //for Sesame RDF wrapper we can directly use the Value
            addValue(property, ((RdfWrapper) current).getValue());
        } else if (current instanceof Reference) {
            addValue(property, sesameFactory.createURI(((Reference) current).getReference()));
        } else if (current instanceof Text) {
            addValue(property, sesameFactory.createLiteral(((Text) current).getText(), ((Text) current).getLanguage()));
        } else {
            //else add an typed Literal!
            addValue(property, createTypedLiteral(current));
        }
    }
}

Example 35 with Value

use of org.openrdf.model.Value in project stanbol by apache.

the class SesameYard method find.

@Override
public final QueryResultList<Representation> find(FieldQuery parsedQuery) throws YardException, IllegalArgumentException {
    if (parsedQuery == null) {
        throw new IllegalArgumentException("The parsed query MUST NOT be NULL!");
    }
    final SparqlFieldQuery query = SparqlFieldQueryFactory.getSparqlFieldQuery(parsedQuery);
    RepositoryConnection con = null;
    TupleQueryResult results = null;
    try {
        con = repository.getConnection();
        con.begin();
        //execute the query
        int limit = QueryUtils.getLimit(query, getConfig().getDefaultQueryResultNumber(), getConfig().getMaxQueryResultNumber());
        results = executeSparqlFieldQuery(con, query, limit, true);
        //parse the results and generate the Representations
        //create an own valueFactors so that all the data of the query results
        //are added to the same Sesame Model
        Model model = new TreeModel();
        RdfValueFactory valueFactory = new RdfValueFactory(model, sesameFactory);
        List<Representation> representations = limit > 0 ? new ArrayList<Representation>(limit) : new ArrayList<Representation>();
        Map<String, URI> bindings = new HashMap<String, URI>(query.getFieldVariableMappings().size());
        for (Entry<String, String> mapping : query.getFieldVariableMappings().entrySet()) {
            bindings.put(mapping.getValue(), sesameFactory.createURI(mapping.getKey()));
        }
        while (results.hasNext()) {
            BindingSet result = results.next();
            Value value = result.getValue(query.getRootVariableName());
            if (value instanceof URI) {
                URI subject = (URI) value;
                //link the result with the query result
                model.add(queryRoot, queryResult, subject);
                //now copy over the other selected data
                for (String binding : result.getBindingNames()) {
                    URI property = bindings.get(binding);
                    if (property != null) {
                        model.add(subject, property, result.getValue(binding));
                    }
                //else no mapping for the query.getRootVariableName()
                }
                //create a representation and add it to the results
                representations.add(valueFactory.createRdfRepresentation(subject));
            }
        //ignore non URI results
        }
        con.commit();
        return new SesameQueryResultList(model, query, representations);
    } catch (RepositoryException e) {
        throw new YardException("Unable to execute findReferences query", e);
    } catch (QueryEvaluationException e) {
        throw new YardException("Unable to execute findReferences query", e);
    } finally {
        if (results != null) {
            //close the result if present
            try {
                results.close();
            } catch (QueryEvaluationException ignore) {
            /* ignore */
            }
        }
        if (con != null) {
            try {
                con.close();
            } catch (RepositoryException ignore) {
            /* ignore */
            }
        }
    }
}