private ApplicationSchema buildApplicationSchema(XMLStreamReaderWrapper xmlStream)
throws XMLParsingException {
String schemaLocation = xmlStream.getAttributeValue(XSINS, "schemaLocation");
if (schemaLocation == null) {
throw new XMLParsingException(
xmlStream, Messages.getMessage("ERROR_NO_SCHEMA_LOCATION", xmlStream.getSystemId()));
}
String[] tokens = schemaLocation.trim().split("\\s+");
if (tokens.length % 2 != 0) {
throw new XMLParsingException(
xmlStream,
Messages.getMessage("ERROR_SCHEMA_LOCATION_TOKENS_COUNT", xmlStream.getSystemId()));
}
String[] schemaUrls = new String[tokens.length / 2];
for (int i = 0; i < schemaUrls.length; i++) {
String schemaUrl = tokens[i * 2 + 1];
try {
schemaUrls[i] = new URL(new URL(xmlStream.getSystemId()), schemaUrl).toString();
} catch (MalformedURLException e) {
throw new XMLParsingException(
xmlStream, "Error parsing application schema: " + e.getMessage());
}
}
// TODO handle multi-namespace schemas
ApplicationSchema schema = null;
try {
ApplicationSchemaXSDDecoder decoder =
new ApplicationSchemaXSDDecoder(version, null, schemaUrls);
schema = decoder.extractFeatureTypeSchema();
} catch (Exception e) {
e.printStackTrace();
throw new XMLParsingException(
xmlStream, "Error parsing application schema: " + e.getMessage());
}
return schema;
}
/**
* Returns the object representation for the given property element.
*
* @param xmlStream cursor must point at the <code>START_ELEMENT</code> event of the property,
* afterwards points at the next event after the <code>END_ELEMENT</code> of the property
* @param propDecl property declaration
* @param crs default SRS for all a descendant geometry properties
* @param occurence
* @return object representation for the given property element.
* @throws XMLParsingException
* @throws XMLStreamException
* @throws UnknownCRSException
*/
public Property<?> parseProperty(
XMLStreamReaderWrapper xmlStream, PropertyType propDecl, CRS crs, int occurence)
throws XMLParsingException, XMLStreamException, UnknownCRSException {
Property<?> property = null;
QName propName = xmlStream.getName();
LOG.debug("- parsing property (begin): " + xmlStream.getCurrentEventInfo());
LOG.debug("- property declaration: " + propDecl);
CustomPropertyReader<?> parser = ptToParser.get(propDecl);
if (parser == null) {
if (propDecl instanceof SimplePropertyType) {
property =
createSimpleProperty(
xmlStream, (SimplePropertyType) propDecl, xmlStream.getElementText().trim());
} else if (propDecl instanceof GeometryPropertyType) {
String href = xmlStream.getAttributeValue(CommonNamespaces.XLNNS, "href");
if (href != null) {
// TODO respect geometry type information (Point, Surface, etc.)
GeometryReference<Geometry> refGeometry = null;
if (specialResolver != null) {
refGeometry =
new GeometryReference<Geometry>(specialResolver, href, xmlStream.getSystemId());
} else {
refGeometry = new GeometryReference<Geometry>(idContext, href, xmlStream.getSystemId());
}
idContext.addReference(refGeometry);
property = new GenericProperty<Geometry>(propDecl, propName, refGeometry);
xmlStream.nextTag();
} else {
xmlStream.nextTag();
Geometry geometry = null;
geometry = geomReader.parse(xmlStream, crs);
property = new GenericProperty<Geometry>(propDecl, propName, geometry);
xmlStream.nextTag();
}
} else if (propDecl instanceof FeaturePropertyType) {
String uri = xmlStream.getAttributeValue(CommonNamespaces.XLNNS, "href");
if (uri != null) {
FeatureReference refFeature = null;
if (specialResolver != null) {
refFeature = new FeatureReference(specialResolver, uri, xmlStream.getSystemId());
} else {
refFeature = new FeatureReference(idContext, uri, xmlStream.getSystemId());
}
idContext.addReference(refFeature);
property = new GenericProperty<Feature>(propDecl, propName, refFeature);
xmlStream.nextTag();
} else {
// inline feature
if (xmlStream.nextTag() != START_ELEMENT) {
String msg = Messages.getMessage("ERROR_INVALID_FEATURE_PROPERTY", propName);
throw new XMLParsingException(xmlStream, msg);
}
// TODO make this check (no constraints on contained feature type) better
if (((FeaturePropertyType) propDecl).getFTName() != null) {
FeatureType expectedFt = ((FeaturePropertyType) propDecl).getValueFt();
FeatureType presentFt = lookupFeatureType(xmlStream, xmlStream.getName());
if (!schema.isSubType(expectedFt, presentFt)) {
String msg =
Messages.getMessage(
"ERROR_PROPERTY_WRONG_FEATURE_TYPE",
expectedFt.getName(),
propName,
presentFt.getName());
throw new XMLParsingException(xmlStream, msg);
}
}
Feature subFeature = parseFeature(xmlStream, crs);
property = new GenericProperty<Feature>(propDecl, propName, subFeature);
xmlStream.skipElement();
}
} else if (propDecl instanceof CustomPropertyType) {
Object value = new GenericCustomPropertyReader().parse(xmlStream);
property = new GenericProperty<Object>(propDecl, propName, value);
} else if (propDecl instanceof EnvelopePropertyType) {
Envelope env = null;
xmlStream.nextTag();
if (xmlStream.getName().equals(new QName(gmlNs, "Null"))) {
// TODO
StAXParsingHelper.skipElement(xmlStream);
} else {
env = geomReader.parseEnvelope(xmlStream, crs);
property = new GenericProperty<Object>(propDecl, propName, env);
}
xmlStream.nextTag();
} else if (propDecl instanceof CodePropertyType) {
String codeSpace = xmlStream.getAttributeValue(null, "codeSpace");
String code = xmlStream.getElementText().trim();
Object value = new CodeType(code, codeSpace);
property = new GenericProperty<Object>(propDecl, propName, value);
} else if (propDecl instanceof MeasurePropertyType) {
String uom = xmlStream.getAttributeValue(null, "uom");
Object value = new Measure(xmlStream.getElementText(), uom);
property = new GenericProperty<Object>(propDecl, propName, value);
} else if (propDecl instanceof StringOrRefPropertyType) {
String ref = xmlStream.getAttributeValue(CommonNamespaces.XLNNS, "href");
String string = xmlStream.getElementText().trim();
property = new GenericProperty<Object>(propDecl, propName, new StringOrRef(string, ref));
}
} else {
LOG.trace("************ Parsing property using custom parser.");
Object value = parser.parse(xmlStream);
property = new GenericProperty<Object>(propDecl, propName, value);
}
LOG.debug(" - parsing property (end): " + xmlStream.getCurrentEventInfo());
return property;
}