Examples with FeatureAssociationRole org.opengis.feature.FeatureAssociationRole used on opensource projects

Example 6 with FeatureAssociationRole

use of org.opengis.feature.FeatureAssociationRole in project geotoolkit by Geomatys.

the class JAXPStreamFeatureReader method readFeature.

private Feature readFeature(final FeatureType featureType, final GenericName tagName) throws XMLStreamException {
    final Feature feature = featureType.newInstance();
    /*
         * We create a map and a collection because we can encounter two cases :
         * - The case featureType defines a property with max occur > 1.
         * - The case featureType defines a property with max occur = 1, and its
         * value instance of collection or map.
         * We store all encountered name with its linked property in the map, so
         * at each value parsed, we can add it in the existing property if its
         * value is a list or map. The collection is the final property store,
         * we add the all the created properties in it (so we can put multiple
         * properties with the same name).
         */
    final List<Entry<Operation, Object>> ops = new ArrayList<>();
    // read attributes
    final int nbAtts = reader.getAttributeCount();
    for (int i = 0; i < nbAtts; i++) {
        final QName attName = reader.getAttributeName(i);
        if ("href".equals(attName.getLocalPart())) {
            // or if can't be resolved we will still have the id
            try {
                final String attVal = reader.getAttributeValue(i);
                feature.setPropertyValue(AttributeConvention.IDENTIFIER, attVal);
            } catch (IllegalArgumentException ex) {
            // do nothing
            }
        } else {
            try {
                final AttributeType pd = (AttributeType) featureType.getProperty("@" + attName.getLocalPart());
                final String attVal = reader.getAttributeValue(i);
                final Object val = ObjectConverters.convert(attVal, pd.getValueClass());
                feature.setPropertyValue(pd.getName().toString(), val);
            } catch (PropertyNotFoundException ex) {
            // do nothing
            }
        }
    }
    boolean doNext = true;
    // read a real complex type
    while (!doNext || reader.hasNext()) {
        if (doNext) {
            reader.next();
        }
        doNext = true;
        int event = reader.getEventType();
        if (event == START_ELEMENT) {
            GenericName propName = nameCache.get(reader.getName());
            // we skip the boundedby attribute if it's present
            if ("boundedBy".equals(propName.tip().toString())) {
                toTagEnd("boundedBy");
                continue;
            }
            final String nameAttribute = reader.getAttributeValue(null, "name");
            // search property
            PropertyType propertyType = null;
            FeatureType associationSubType = null;
            // search direct name
            try {
                propertyType = featureType.getProperty(propName.toString());
            } catch (PropertyNotFoundException e) {
            /*can happen*/
            }
            // search using only local part
            if (propertyType == null) {
                try {
                    propertyType = featureType.getProperty(propName.tip().toString());
                } catch (PropertyNotFoundException e) {
                /*can happen*/
                }
            }
            // search if we are dealing with a subtype of a feature association role value type
            if (propertyType == null) {
                try {
                    final FeatureType candidate = featureTypes.get(propName.toString());
                    if (candidate != null) {
                        // search for a FeatureAssociationRole
                        for (PropertyType pt : featureType.getProperties(true)) {
                            if (pt instanceof FeatureAssociationRole) {
                                final FeatureAssociationRole far = (FeatureAssociationRole) pt;
                                final FeatureType vt = far.getValueType();
                                if (vt.isAssignableFrom(candidate)) {
                                    propertyType = far;
                                    associationSubType = candidate;
                                    // change property name where data will be stored
                                    propName = far.getName();
                                    break;
                                }
                            }
                        }
                    }
                } catch (IllegalNameException ex) {
                    Logger.getLogger(JAXPStreamFeatureReader.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
            // skip property if we couldn't find it and user requested it
            if (propertyType == null && Boolean.TRUE.equals(this.properties.get(SKIP_UNEXPECTED_PROPERTY_TAGS))) {
                toTagEnd(propName.tip().toString());
                continue;
            }
            // search if we have an _any attribute available
            if (propertyType == null) {
                try {
                    final AttributeType pd = (AttributeType) featureType.getProperty("_any");
                    // convert the content as a dom node
                    final Document doc = readAsDom(propName.tip().toString());
                    feature.setPropertyValue(pd.getName().toString(), doc);
                    doNext = false;
                    continue;
                } catch (PropertyNotFoundException e) {
                    throw new XMLStreamException("Could not find any property fitting named tag " + propName);
                }
            }
            if (propertyType instanceof Operation) {
                final Operation opType = (Operation) propertyType;
                final PropertyType resultType = (PropertyType) opType.getResult();
                final Object value = readPropertyValue(resultType, null, null);
                ops.add(new AbstractMap.SimpleImmutableEntry<>((Operation) propertyType, value));
                if (resultType.getName().equals(propertyType.getName())) {
                    // we are already on the next element here, jaxb ate one
                    doNext = false;
                }
                continue;
            }
            // read attributes
            if (propertyType instanceof AttributeType) {
                final AttributeType<?> attType = (AttributeType) propertyType;
                final int nbPropAtts = reader.getAttributeCount();
                if (nbPropAtts > 0) {
                    final Attribute att = (Attribute) feature.getProperty(propName.toString());
                    for (int i = 0; i < nbPropAtts; i++) {
                        final QName qname = reader.getAttributeName(i);
                        final GenericName attName = nameCache.get(new QName(qname.getNamespaceURI(), "@" + qname.getLocalPart()));
                        final AttributeType<?> charType = attType.characteristics().get(attName.toString());
                        if (charType != null) {
                            final String attVal = reader.getAttributeValue(i);
                            final Object val = ObjectConverters.convert(attVal, charType.getValueClass());
                            final Attribute chara = charType.newInstance();
                            chara.setValue(val);
                            att.characteristics().put(attName.toString(), chara);
                        }
                    }
                }
            }
            // check if attribute has it's own mapping
            final XSDMapping mapping = GMLConvention.getMapping(propertyType);
            if (mapping != null) {
                mapping.readValue(reader, propName, feature);
            } else {
                // parse the value
                final Object value = readPropertyValue(propertyType, associationSubType, feature);
                setValue(feature, propertyType, propName, nameAttribute, value);
            }
        } else if (event == END_ELEMENT) {
            final QName q = reader.getName();
            if (q.getLocalPart().equals("featureMember") || nameCache.get(q).equals(tagName)) {
                break;
            }
        }
    }
    return feature;
}

Example 7 with FeatureAssociationRole

use of org.opengis.feature.FeatureAssociationRole in project geotoolkit by Geomatys.

the class JAXPStreamFeatureReader method readPropertyValue.

private Object readPropertyValue(PropertyType propertyType, FeatureType associationSubType, Feature feature) throws XMLStreamException {
    boolean skipCurrent = GMLConvention.isDecoratedProperty(propertyType);
    final GenericName propName = nameCache.get(reader.getName());
    Object value = null;
    if (AttributeConvention.isGeometryAttribute(propertyType)) {
        final boolean longitudeFirst;
        if (getProperty(LONGITUDE_FIRST) != null) {
            longitudeFirst = (boolean) getProperty(LONGITUDE_FIRST);
        } else {
            longitudeFirst = true;
        }
        GeometryMapping mapping = new GeometryMapping(null, propertyType, getPool(), longitudeFirst, skipCurrent);
        mapping.readValue(reader, propName, feature);
    } else if (propertyType instanceof FeatureAssociationRole) {
        final FeatureAssociationRole far = (FeatureAssociationRole) propertyType;
        final FeatureType valueType = (associationSubType == null) ? far.getValueType() : associationSubType;
        // GML properties have one level of encapsulation (in properties which follow the ogc convention)
        final QName currentName = reader.getName();
        if (!skipCurrent) {
            // no encapsulation
            value = readFeature(valueType, nameCache.get(currentName));
        } else {
            boolean doNext = true;
            while (!doNext || reader.hasNext()) {
                if (doNext) {
                    reader.next();
                }
                doNext = true;
                int event = reader.getEventType();
                if (event == START_ELEMENT) {
                    final GenericName subName = nameCache.get(reader.getName());
                    value = readFeature(((FeatureAssociationRole) propertyType).getValueType(), subName);
                } else if (event == END_ELEMENT) {
                    final QName q = reader.getName();
                    if (nameCache.get(q).equals(propName)) {
                        break;
                    }
                }
            }
        }
    } else if (propertyType instanceof AttributeType) {
        final String content = reader.getElementText();
        final Class typeBinding = ((AttributeType) propertyType).getValueClass();
        if (List.class.equals(typeBinding) || Map.class.equals(typeBinding)) {
            value = content;
        } else {
            value = readValue(content, (AttributeType) propertyType);
        }
    }
    return value;
}

Example 8 with FeatureAssociationRole

use of org.opengis.feature.FeatureAssociationRole in project geotoolkit by Geomatys.

the class JAXPStreamFeatureReader method resolveReferences.

/**
 * Replace each feature xlink href characteristic by it's real value if it exist.
 *
 * @param obj
 * @throws DataStoreException
 */
private void resolveReferences(Object obj) throws DataStoreException {
    if (obj instanceof Feature) {
        final Feature feature = (Feature) obj;
        final FeatureType type = feature.getType();
        for (PropertyType pt : type.getProperties(true)) {
            if (pt instanceof AttributeType) {
                AttributeType attType = (AttributeType) pt;
                if (attType.getMaximumOccurs() == 1) {
                    Attribute att = (Attribute) feature.getProperty(pt.getName().toString());
                    Object value = att.getValue();
                    if (value == null) {
                        Attribute charatt = (Attribute) att.characteristics().get(GMLConvention.XLINK_HREF.tip().toString());
                        if (charatt != null) {
                            String refGmlId = (String) charatt.getValue();
                            Object target = index.get(refGmlId);
                            if (target == null && refGmlId.startsWith("#")) {
                                // local references start with a #
                                target = index.get(refGmlId.substring(1));
                            }
                            if (target != null)
                                att.setValue(target);
                        }
                    }
                }
            } else if (pt instanceof FeatureAssociationRole) {
                final Object value = feature.getPropertyValue(pt.getName().toString());
                // if association is a gml:referenceType try to resolve the real feature
                FeatureType valueType = ((FeatureAssociationRole) pt).getValueType();
                if ("AbstractGMLType".equals(valueType.getName().tip().toString())) {
                    if (value instanceof Feature) {
                        Feature f = (Feature) value;
                        try {
                            Object fid = f.getPropertyValue(AttributeConvention.IDENTIFIER);
                            if (String.valueOf(fid).startsWith("#")) {
                                // local references start with a #
                                Feature target = (Feature) index.get(fid.toString().substring(1));
                                if (target != null) {
                                    feature.setPropertyValue(pt.getName().toString(), target);
                                }
                            }
                        } catch (IllegalArgumentException ex) {
                        // do nothing
                        }
                    } else if (value instanceof Collection) {
                        final List<Feature> newFeatures = new ArrayList<>();
                        final Collection col = (Collection) value;
                        Iterator<Feature> iterator = col.iterator();
                        while (iterator.hasNext()) {
                            Feature f = (Feature) iterator.next();
                            try {
                                Object fid = f.getPropertyValue(AttributeConvention.IDENTIFIER);
                                if (String.valueOf(fid).startsWith("#")) {
                                    // local references start with a #
                                    Feature target = (Feature) index.get(fid.toString().substring(1));
                                    if (target != null) {
                                        f = target;
                                    }
                                }
                            } catch (IllegalArgumentException ex) {
                            // do nothing
                            }
                            newFeatures.add(f);
                        }
                        feature.setPropertyValue(pt.getName().toString(), newFeatures);
                    }
                } else {
                    // resolve sub children references
                    resolveReferences(value);
                }
            }
        }
    } else if (obj instanceof WritableFeatureSet) {
        final WritableFeatureSet fs = (WritableFeatureSet) obj;
        final List<Feature> newFeatures = new ArrayList<>();
        try (Stream<Feature> stream = fs.features(false)) {
            Iterator<Feature> iterator = stream.iterator();
            while (iterator.hasNext()) {
                Feature f = iterator.next();
                resolveReferences(f);
                newFeatures.add(f);
            }
        }
        fs.removeIf((Feature t) -> true);
        fs.add(newFeatures.iterator());
    } else if (obj instanceof FeatureSet) {
    // can not update features, not writable
    } else if (obj instanceof Collection) {
        final Collection col = (Collection) obj;
        Iterator<Feature> iterator = col.iterator();
        while (iterator.hasNext()) {
            resolveReferences(iterator.next());
        }
    }
}

Example 9 with FeatureAssociationRole

use of org.opengis.feature.FeatureAssociationRole in project geotoolkit by Geomatys.

the class JAXPStreamFeatureWriter method writeProperty.

private void writeProperty(Feature parent, PropertyType typeA, Object valueA, String id) throws XMLStreamException {
    final GenericName nameA = typeA.getName();
    if (AttributeConvention.contains(nameA) || isAttributeProperty(nameA))
        return;
    final String nameProperty = nameA.tip().toString();
    String namespaceProperty = getNamespace(nameA);
    final boolean hasChars = typeA instanceof AttributeType && !((AttributeType) typeA).characteristics().isEmpty();
    if (typeA instanceof FeatureAssociationRole && valueA instanceof Feature) {
        final FeatureAssociationRole far = (FeatureAssociationRole) typeA;
        final Feature ca = (Feature) valueA;
        final FeatureType valueType = far.getValueType();
        // write feature
        if (namespaceProperty != null && !namespaceProperty.isEmpty()) {
            writer.writeStartElement(namespaceProperty, nameProperty);
        } else {
            writer.writeStartElement(nameProperty);
        }
        // nill case
        final Object isNil = Utils.isNill(ca);
        if (isNil != null) {
            writeAttributeProperties(ca);
            writer.writeEndElement();
            return;
        }
        // check if we are working on a gml:ReferenceType
        if ("AbstractGMLType".equals(valueType.getName().tip().toString())) {
            // write and xlink href in local file
            Object valueId = ca.getPropertyValue(AttributeConvention.IDENTIFIER);
            writer.writeAttribute(GMLConvention.XLINK_NAMESPACE, "href", "#" + valueId);
            writer.writeEndElement();
            return;
        }
        final String gmlid = getId(ca, null);
        /*
            Note : the GML 3.2 identifier element is this only one which does not
            follow the OGC 'PropertyType' pattern and is not encapsulated.
            Note : if more cases are found, a more generic approach should be used.
            */
        boolean encapsulate = GMLConvention.isDecoratedProperty(far);
        if (encapsulate) {
            // we need to encapsulate type
            final String encapName = Utils.getNameWithoutTypeSuffix(valueType.getName().tip().toString());
            if (namespaceProperty != null && !namespaceProperty.isEmpty()) {
                writer.writeStartElement(namespaceProperty, encapName);
            } else {
                writer.writeStartElement(encapName);
            }
            if (gmlid != null) {
                writer.writeAttribute("gml", gmlNamespace, "id", gmlid);
            }
            writeAttributeProperties(ca);
            writeComplexProperties(ca, getId(ca, id));
            // close encapsulation
            writer.writeEndElement();
        } else {
            if (gmlid != null) {
                writer.writeAttribute("gml", gmlNamespace, "id", gmlid);
            }
            writeAttributeProperties(ca);
            writeComplexProperties(ca, getId(ca, id));
        }
        writer.writeEndElement();
    } else if (valueA instanceof Collection && !(AttributeConvention.isGeometryAttribute(typeA))) {
        for (Object value : (Collection) valueA) {
            if (namespaceProperty != null && !namespaceProperty.isEmpty()) {
                writer.writeStartElement(namespaceProperty, nameProperty);
            } else {
                writer.writeStartElement(nameProperty);
            }
            if (hasChars)
                writeCharacteristics((Attribute) parent.getProperty(nameA.toString()));
            writer.writeCharacters(Utils.getStringValue(value));
            writer.writeEndElement();
        }
    } else if (valueA != null && valueA.getClass().isArray() && !(AttributeConvention.isGeometryAttribute(typeA))) {
        final int length = Array.getLength(valueA);
        for (int i = 0; i < length; i++) {
            if (namespaceProperty != null && !namespaceProperty.isEmpty()) {
                writer.writeStartElement(namespaceProperty, nameProperty);
            } else {
                writer.writeStartElement(nameProperty);
            }
            if (hasChars)
                writeCharacteristics((Attribute) parent.getProperty(nameA.toString()));
            final Object value = Array.get(valueA, i);
            final String textValue;
            if (value != null && value.getClass().isArray()) {
                // matrix
                final StringBuilder sb = new StringBuilder();
                final int length2 = Array.getLength(value);
                for (int j = 0; j < length2; j++) {
                    final Object subValue = Array.get(value, j);
                    sb.append(Utils.getStringValue(subValue)).append(" ");
                }
                textValue = sb.toString();
            } else {
                textValue = Utils.getStringValue(value);
            }
            writer.writeCharacters(textValue);
            writer.writeEndElement();
        }
    } else if (valueA instanceof Map && !(AttributeConvention.isGeometryAttribute(typeA))) {
        final Map<?, ?> map = (Map) valueA;
        for (Entry<?, ?> entry : map.entrySet()) {
            if (namespaceProperty != null && !namespaceProperty.isEmpty()) {
                writer.writeStartElement(namespaceProperty, nameProperty);
            } else {
                writer.writeStartElement(nameProperty);
            }
            if (hasChars)
                writeCharacteristics((Attribute) parent.getProperty(nameA.toString()));
            final Object key = entry.getKey();
            if (key != null) {
                writer.writeAttribute("name", (String) key);
            }
            writer.writeCharacters(Utils.getStringValue(entry.getValue()));
            writer.writeEndElement();
        }
    } else if (!(AttributeConvention.isGeometryAttribute(typeA))) {
        if (valueA instanceof Document) {
            // special case for xml documents
            final Document doc = (Document) valueA;
            StaxUtils.writeElement(doc.getDocumentElement(), writer, false);
        } else {
            // simple type
            String value = (valueA instanceof Property) ? null : Utils.getStringValue(valueA);
            if ((nameProperty.equals("name") || nameProperty.equals("description")) && !gmlNamespace.equals(namespaceProperty)) {
                namespaceProperty = gmlNamespace;
                LOGGER.finer("the property name and description of a feature must have the GML namespace");
            }
            if (valueA instanceof Feature || value != null) {
                if (namespaceProperty != null && !namespaceProperty.isEmpty()) {
                    writer.writeStartElement(namespaceProperty, nameProperty);
                } else {
                    writer.writeStartElement(nameProperty);
                }
                if (hasChars)
                    writeCharacteristics((Attribute) parent.getProperty(nameA.toString()));
                if (valueA instanceof Feature) {
                    // some types, like Observation & Measurement have Object types which can be
                    // properties again, we ensure to write then as proper xml tags
                    final Feature prop = (Feature) valueA;
                    final GenericName propName = prop.getType().getName();
                    final String namespaceURI = getNamespace(propName);
                    final String localPart = Utils.getNameWithoutTypeSuffix(propName.tip().toString());
                    if (namespaceURI != null && !namespaceURI.isEmpty()) {
                        writer.writeStartElement(namespaceURI, localPart);
                    } else {
                        writer.writeStartElement(localPart);
                    }
                    writeComplexProperties(prop, getId(prop, id));
                    writer.writeEndElement();
                } else if (value != null) {
                    writer.writeCharacters(value);
                }
                writer.writeEndElement();
            } else if (value == null && Utils.isNillable(typeA)) {
                if (namespaceProperty != null && !namespaceProperty.isEmpty()) {
                    writer.writeStartElement(namespaceProperty, nameProperty);
                } else {
                    writer.writeStartElement(nameProperty);
                }
                writer.writeAttribute("http://www.w3.org/2001/XMLSchema-instance", "nil", "1");
                writer.writeEndElement();
            }
        }
    // we add the geometry
    } else {
        if (valueA != null) {
            final boolean descIsType = Utils.isGeometricType(typeA.getName()) && Utils.isGeometricType(nameA);
            if (!descIsType) {
                if (namespaceProperty != null && !namespaceProperty.isEmpty()) {
                    writer.writeStartElement(namespaceProperty, nameProperty);
                } else {
                    writer.writeStartElement(nameProperty);
                }
            }
            final CoordinateReferenceSystem crs = FeatureExt.getCRS(typeA);
            final JAXBElement element;
            final MarshallerPool POOL;
            if ("3.1.1".equals(gmlVersion)) {
                final Geometry isoGeometry = JTSUtils.toISO((org.locationtech.jts.geom.Geometry) valueA, crs);
                element = OBJECT_FACTORY.buildAnyGeometry(isoGeometry);
                POOL = GML_31_POOL;
            } else if ("3.2.1".equals(gmlVersion)) {
                AbstractGeometry gmlGeometry = null;
                try {
                    gmlGeometry = JTStoGeometry.toGML(gmlVersion, (org.locationtech.jts.geom.Geometry) valueA, crs);
                } catch (FactoryException ex) {
                    LOGGER.log(Level.WARNING, "Factory exception when transforming JTS geometry to GML binding", ex);
                }
                if (gmlGeometry != null) {
                    // id is requiered in version 3.2.1
                    // NOTE we often see gml where the geometry id is the same as the feature
                    // we use the last parent with an id, seems acceptable.
                    final String gid = (id + "_g").replace(':', '_');
                    setId(gmlGeometry, gid);
                }
                element = GML32_FACTORY.buildAnyGeometry(gmlGeometry);
                POOL = GML_32_POOL;
            } else {
                throw new IllegalArgumentException("Unexpected GML version:" + gmlVersion);
            }
            try {
                final Marshaller marshaller;
                marshaller = POOL.acquireMarshaller();
                marshaller.setProperty(Marshaller.JAXB_FRAGMENT, true);
                marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, false);
                marshal(marshaller, element);
                POOL.recycle(marshaller);
            } catch (JAXBException ex) {
                LOGGER.log(Level.WARNING, "JAXB Exception while marshalling the iso geometry: " + ex.getMessage(), ex);
            }
            if (!descIsType)
                writer.writeEndElement();
        }
    }
}

Example 10 with FeatureAssociationRole

use of org.opengis.feature.FeatureAssociationRole in project geotoolkit by Geomatys.

the class Utils method propertyValueAsList.

public static Collection<?> propertyValueAsList(Feature feature, String propertyName) {
    final Object val = feature.getPropertyValue(propertyName);
    final PropertyType type = feature.getType().getProperty(propertyName);
    if (type instanceof AttributeType) {
        if (((AttributeType) type).getMinimumOccurs() > 1) {
            return (Collection<?>) val;
        } else {
            return Collections.singleton(val);
        }
    } else if (type instanceof FeatureAssociationRole) {
        if (((FeatureAssociationRole) type).getMinimumOccurs() > 1) {
            return (Collection<?>) val;
        } else {
            return Collections.singleton(val);
        }
    } else if (type instanceof Operation) {
        return Collections.singleton(val);
    } else {
        throw new IllegalArgumentException("Unknown propert type : " + type);
    }
}