@Override
public void run() {
try {
feature = DataAccessRegistry.getInstance().findFeature(new FeatureIdImpl(refId), hints);
} catch (IOException e) {
// ignore, no resolve
}
}
/**
* Special handling for polymorphic mapping. Works out the polymorphic type name by evaluating the
* function on the feature, then set the relevant sub-type values.
*
* @param target The target feature to be encoded
* @param id The target feature id
* @param nestedMapping The mapping that is polymorphic
* @param source The source simple feature
* @param xpath The xpath of polymorphic type
* @param clientPropsMappings Client properties
* @throws IOException
*/
private Attribute setPolymorphicValues(
Name mappingName,
Attribute target,
String id,
NestedAttributeMapping nestedMapping,
Object source,
StepList xpath,
Map<Name, Expression> clientPropsMappings)
throws IOException {
// process sub-type mapping
DataAccess<FeatureType, Feature> da = DataAccessRegistry.getDataAccess((Name) mappingName);
if (da instanceof AppSchemaDataAccess) {
// why wouldn't it be? check just to be safe
FeatureTypeMapping fTypeMapping =
((AppSchemaDataAccess) da).getMappingByName((Name) mappingName);
List<AttributeMapping> polymorphicMappings = fTypeMapping.getAttributeMappings();
AttributeDescriptor attDescriptor = fTypeMapping.getTargetFeature();
AttributeType type = attDescriptor.getType();
Name polymorphicTypeName = attDescriptor.getName();
StepList prefixedXpath = xpath.clone();
prefixedXpath.add(
new Step(
new QName(
polymorphicTypeName.getNamespaceURI(),
polymorphicTypeName.getLocalPart(),
this.namespaces.getPrefix(polymorphicTypeName.getNamespaceURI())),
1));
if (!fTypeMapping.getFeatureIdExpression().equals(Expression.NIL)) {
id = fTypeMapping.getFeatureIdExpression().evaluate(source, String.class);
}
Attribute instance =
xpathAttributeBuilder.set(
target, prefixedXpath, null, id, type, false, attDescriptor, null);
setClientProperties(instance, source, clientPropsMappings);
for (AttributeMapping mapping : polymorphicMappings) {
if (skipTopElement(polymorphicTypeName, mapping, type)) {
// if the top level mapping for the Feature itself, the attribute instance
// has already been created.. just need to set the client properties
setClientProperties(instance, source, mapping.getClientProperties());
continue;
}
setAttributeValue(
instance, null, source, mapping, null, null, selectedProperties.get(mapping));
}
return instance;
}
return null;
}