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

Example 76 with URI

use of org.openrdf.model.URI 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 77 with URI

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

the class Database method abbreviateItems.

protected synchronized void abbreviateItems() {
    if (_abbreviatedItems) {
        return;
    }
    _abbreviatedItems = true;
    getRepository();
    SailConnection sc = null;
    try {
        sc = _sail.getConnection();
    } catch (SailException e) {
        _logger.error("Failed to open sail connection in order to compute cached information", e);
    }
    if (sc != null) {
        try {
            CloseableIteration<? extends Statement, SailException> i;
            try {
                i = sc.getStatements(null, RDF.TYPE, null, true);
            } catch (SailException e) {
                _logger.error("Failed to get all statements in order to abbreviate items", e);
                return;
            }
            try {
                while (i.hasNext()) {
                    Statement s = i.next();
                    Resource r = s.getSubject();
                    if (r instanceof URI) {
                        getItemId((URI) r, sc);
                    }
                }
            } 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);
                }
            }
        } finally {
            try {
                sc.close();
            } catch (SailException e) {
                _logger.warn("Failed to close sail connection", e);
            }
        }
    }
}

Example 78 with URI

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

the class Database method internalBuildTypeRecords.

private void internalBuildTypeRecords(SailConnection sc) {
    _typeRecords = new LinkedList<TypeRecord>();
    _typeIDToRecord = new HashMap<String, TypeRecord>();
    getRepository();
    CloseableIteration<? extends Statement, SailException> i;
    try {
        i = sc.getStatements(null, RDF.TYPE, null, true);
    } catch (SailException e) {
        _logger.error("Failed to get all statements in order to get type records", e);
        return;
    }
    Set<URI> types = new HashSet<URI>();
    try {
        while (i.hasNext()) {
            Statement s = i.next();
            types.add((URI) s.getObject());
        }
    } 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);
        }
    }
    for (URI type : types) {
        TypeRecord r = createTypeRecord(type, sc);
        if (r != null) {
            _typeRecords.add(r);
            _typeIDToRecord.put(r.id, r);
        }
    }
}

Example 79 with URI

use of org.openrdf.model.URI in project qi4j-sdk by Qi4j.

the class EntityStateSerializer method serialize.

public void serialize(final EntityState entityState, final boolean includeNonQueryable, final Graph graph) {
    ValueFactory values = graph.getValueFactory();
    EntityReference identity = entityState.identity();
    URI entityUri = createEntityURI(values, identity);
    graph.add(entityUri, Rdfs.TYPE, values.createURI(Classes.toURI(first(entityState.entityDescriptor().types()))));
    serializeProperties(entityState, graph, entityUri, entityState.entityDescriptor(), includeNonQueryable);
    serializeAssociations(entityState, graph, entityUri, entityState.entityDescriptor().state().associations(), includeNonQueryable);
    serializeManyAssociations(entityState, graph, entityUri, entityState.entityDescriptor().state().manyAssociations(), includeNonQueryable);
}

Example 80 with URI

use of org.openrdf.model.URI in project qi4j-sdk by Qi4j.

the class EntityStateSerializer method serializeAssociations.

private void serializeAssociations(final EntityState entityState, final Graph graph, URI entityUri, final Iterable<? extends AssociationDescriptor> associations, final boolean includeNonQueryable) {
    ValueFactory values = graph.getValueFactory();
    // Associations
    for (AssociationDescriptor associationType : associations) {
        if (!(includeNonQueryable || associationType.queryable())) {
            // Skip non-queryable
            continue;
        }
        EntityReference associatedId = entityState.associationValueOf(associationType.qualifiedName());
        if (associatedId != null) {
            URI assocURI = values.createURI(associationType.qualifiedName().toURI());
            URI assocEntityURI = values.createURI(associatedId.toURI());
            graph.add(entityUri, assocURI, assocEntityURI);
        }
    }
}