Examples with Expression org.opengis.filter.Expression used on opensource projects

Example 11 with Expression

use of org.opengis.filter.Expression in project geotoolkit by Geomatys.

the class CachedTextSymbolizer method evaluate.

@Override
protected void evaluate() {
    if (!isNotEvaluated)
        return;
    final Expression expLabel = styleElement.getLabel();
    // we can not know so always visible
    isStaticVisible = VisibilityState.VISIBLE;
    if (GO2Utilities.isStatic(expLabel)) {
        label = GO2Utilities.evaluate(expLabel, null, String.class, "No Label");
    } else {
        label = null;
        GO2Utilities.getRequieredAttributsName(expLabel, requieredAttributs);
        isStatic = false;
    }
    cachedFont.getRequieredAttributsName(requieredAttributs);
    cachedFill.getRequieredAttributsName(requieredAttributs);
    cachedHalo.getRequieredAttributsName(requieredAttributs);
    cachedPlacement.getRequieredAttributsName(requieredAttributs);
    // no attributs needed replace with static empty list.
    if (requieredAttributs.isEmpty()) {
        requieredAttributs = EMPTY_ATTRIBUTS;
    }
    isNotEvaluated = false;
}

Example 12 with Expression

use of org.opengis.filter.Expression in project geotoolkit by Geomatys.

the class JAXPStreamValueCollectionWriter method writeFeature.

/**
 * Write the feature into the stream.
 *
 * @param feature The feature
 * @throws XMLStreamException
 */
private void writeFeature(final Feature feature) throws XMLStreamException {
    final FeatureType type = feature.getType();
    // write properties in the type order
    Expression exp = FilterUtilities.FF.property(valueReference);
    Object valueA = exp.apply(feature);
    if (valueA instanceof Collection) {
        for (Object value : (Collection) valueA) {
            writer.writeStartElement("wfs", "member", WFS_NAMESPACE);
            writeValue(value);
            writer.writeEndElement();
        }
    } else if (valueA instanceof Map) {
        final Map<?, ?> map = (Map) valueA;
        for (Map.Entry<?, ?> entry : map.entrySet()) {
            writer.writeStartElement("wfs", "member", WFS_NAMESPACE);
            final Object key = entry.getKey();
            if (key != null) {
                writer.writeAttribute("name", (String) key);
            }
            writeValue(entry.getValue());
            writer.writeEndElement();
        }
    } else if (valueA != null && valueA.getClass().isArray()) {
        final int length = Array.getLength(valueA);
        for (int i = 0; i < length; i++) {
            writer.writeStartElement("wfs", "member", WFS_NAMESPACE);
            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 org.locationtech.jts.geom.Geometry) {
        writer.writeStartElement("wfs", "member", WFS_NAMESPACE);
        AbstractGeometry gmlGeometry = null;
        try {
            gmlGeometry = JTStoGeometry.toGML("3.2.1", (org.locationtech.jts.geom.Geometry) valueA, FeatureExt.getCRS(type));
        } catch (FactoryException ex) {
            LOGGER.log(Level.WARNING, "Factory exception when transforming JTS geometry to GML binding", ex);
        }
        final JAXBElement element = GML32_FACTORY.buildAnyGeometry(gmlGeometry);
        try {
            final Marshaller marshaller;
            marshaller = GML_32_POOL.acquireMarshaller();
            marshaller.setProperty(Marshaller.JAXB_FRAGMENT, true);
            marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, false);
            marshal(marshaller, element);
            GML_32_POOL.recycle(marshaller);
        } catch (JAXBException ex) {
            LOGGER.log(Level.WARNING, "JAXB Exception while marshalling the iso geometry: " + ex.getMessage(), ex);
        }
        writer.writeEndElement();
    } else {
        String value = Utils.getStringValue(valueA);
        if (value != null) {
            writer.writeStartElement("wfs", "member", WFS_NAMESPACE);
            writeValue(value);
            writer.writeEndElement();
        }
    }
}

Example 13 with Expression

use of org.opengis.filter.Expression in project geotoolkit by Geomatys.

the class XmlFeatureTest method testWriteSimpleFeaturePrimitiveWithAtts.

@Test
public void testWriteSimpleFeaturePrimitiveWithAtts() throws JAXBException, IOException, XMLStreamException, DataStoreException, ParserConfigurationException, SAXException {
    final File temp = File.createTempFile("gml", ".xml");
    temp.deleteOnExit();
    final XmlFeatureWriter writer = new JAXPStreamFeatureWriter("3.2.1", "1.1.0", null);
    writer.write(featureEmpty, temp);
    writer.dispose();
    String result = IOUtilities.toString(new FileInputStream(temp));
    String expResult = IOUtilities.toString(XmlFeatureTest.class.getResourceAsStream("/org/geotoolkit/feature/xml/SimpleFeatureEmpty.xml"));
    expResult = expResult.replace("EPSG_VERSION", EPSG_VERSION);
    expResult = expResult.replaceAll("(?i)epsg\\:\\d+\\.\\d+\\.?\\d*\\:", "epsg::");
    result = result.replaceAll("(?i)epsg\\:\\d+\\.\\d+\\.?\\d*\\:", "epsg::");
    final Expression exp = new DefaultPropertyName("/identifier/_value");
    Object v = exp.apply(featureEmpty);
    DomCompare.compare(expResult, result);
}

Example 14 with Expression

use of org.opengis.filter.Expression in project geotoolkit by Geomatys.

the class PojoDemo method main.

public static void main(String[] args) {
    Demos.init();
    final Pojo myPojo = new Pojo("squid", 1200, new Date());
    Expression exp = FF.property("family");
    System.out.println(exp.apply(myPojo));
    exp = FF.property("depth");
    System.out.println(exp.apply(myPojo));
    exp = FF.property("birth");
    System.out.println(exp.apply(myPojo));
}

Example 15 with Expression

use of org.opengis.filter.Expression in project geotoolkit by Geomatys.

the class ExpressionDemo method functionExpression.

private static Expression functionExpression() {
    // display all available functions
    System.out.println("\n==============================================================\n");
    final Collection<FunctionRegister> factories = Functions.getFactories();
    for (FunctionRegister ff : factories) {
        System.out.println(Classes.getShortClassName(ff));
        System.out.println(StringUtilities.toStringTree(ff.getNames()));
    }
    final Expression function = Functions.function(MathFunctionFactory.COS, null, FF.property("age"));
    return function;
}