Examples with Fake org.geotoolkit.filter.binding.JaxenFeatureNavigator.Fake used on opensource projects

Example 1 with Fake

use of org.geotoolkit.filter.binding.JaxenFeatureNavigator.Fake in project geotoolkit by Geomatys.

the class XPathBinding method get.

// @Override
// public boolean canHandle(final Class type, final String xpath, final Class target) {
// 
// if(xpath == null || xpath.isEmpty()){
// return false;
// }
// 
// if (!ComplexAttribute.class.isAssignableFrom(type)
// && !PropertyType.class.isAssignableFrom(type)
// && !PropertyDescriptor.class.isAssignableFrom(type)) {
// return false; // we only work with complex types.
// }
// 
// return true;
// }
@Override
public <T> T get(C candidate, String path, Class<T> target) throws IllegalArgumentException {
    if (candidate == null)
        return null;
    try {
        final JaxenFeatureXPath xpath = JaxenFeatureXPath.create(path);
        Object v = xpath.evaluate(candidate);
        if (v instanceof Fake) {
            v = ((Fake) v).value;
        }
        if (v instanceof Collection) {
            // several property for this path
            final Collection properties = (Collection) v;
            if (target != null && target.isInstance(properties)) {
                return (T) properties;
            } else {
                final Iterator ite = properties.iterator();
                if (ite.hasNext()) {
                    v = ite.next();
                }
            }
        }
        if (v instanceof Fake && Property.class.isAssignableFrom(target)) {
            v = ((Fake) v).value;
        }
        if (v instanceof Property) {
            // extract value from property if necessary
            final Property prop = (Property) v;
            if (target != null && target.isInstance(prop)) {
                return (T) prop;
            } else {
                if (prop instanceof Attribute && ((Attribute) prop).getType().getMaximumOccurs() > 1) {
                    v = ((Attribute) prop).getValues();
                } else if (prop instanceof FeatureAssociation && ((FeatureAssociation) prop).getRole().getMaximumOccurs() > 1) {
                    v = ((FeatureAssociation) prop).getValues();
                } else {
                    v = prop.getValue();
                }
            }
        }
        if (target == null) {
            return (T) v;
        } else {
            return ObjectConverters.convert(v, target);
        }
    } catch (JaxenException ex) {
        Logger.getLogger("org.geotoolkit.filter.binding").log(Level.WARNING, null, ex);
    }
    return null;
}